Restore Graceful Restarting & Socket Activation (#7274)
* Prevent deadlock in indexer initialisation during graceful restart * Move from gracehttp to our own service to add graceful ssh * Add timeout for start of indexers and make hammer time configurable * Fix issue with re-initialization in indexer during tests * move the code to detect use of closed to graceful * Handle logs gracefully - add a pid suffix just before restart * Move to using a cond and a holder for indexers * use time.Since * Add some comments and attribution * update modules.txt * Use zero to disable timeout * Move RestartProcess to its own file * Add cleanup routinerelease/v1.15
zeripath
GitHub
parent
4a290bd64c
commit
167e8f18da
35
cmd/web.go
35
cmd/web.go
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@ -75,17 +75,13 @@ func runLetsEncrypt(listenAddr, domain, directory, email string, m http.Handler)
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}
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go func() {
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log.Info("Running Let's Encrypt handler on %s", setting.HTTPAddr+":"+setting.PortToRedirect)
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var err = http.ListenAndServe(setting.HTTPAddr+":"+setting.PortToRedirect, certManager.HTTPHandler(http.HandlerFunc(runLetsEncryptFallbackHandler))) // all traffic coming into HTTP will be redirect to HTTPS automatically (LE HTTP-01 validation happens here)
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// all traffic coming into HTTP will be redirect to HTTPS automatically (LE HTTP-01 validation happens here)
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var err = runHTTP(setting.HTTPAddr+":"+setting.PortToRedirect, certManager.HTTPHandler(http.HandlerFunc(runLetsEncryptFallbackHandler)))
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if err != nil {
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log.Fatal("Failed to start the Let's Encrypt handler on port %s: %v", setting.PortToRedirect, err)
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}
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}()
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server := &http.Server{
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Addr: listenAddr,
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Handler: m,
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TLSConfig: certManager.TLSConfig(),
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}
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return server.ListenAndServeTLS("", "")
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return runHTTPSWithTLSConfig(listenAddr, certManager.TLSConfig(), context2.ClearHandler(m))
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}
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func runLetsEncryptFallbackHandler(w http.ResponseWriter, r *http.Request) {
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@ -101,12 +97,21 @@ func runLetsEncryptFallbackHandler(w http.ResponseWriter, r *http.Request) {
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}
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func runWeb(ctx *cli.Context) error {
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if os.Getppid() > 1 && len(os.Getenv("LISTEN_FDS")) > 0 {
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log.Info("Restarting Gitea on PID: %d from parent PID: %d", os.Getpid(), os.Getppid())
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} else {
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log.Info("Starting Gitea on PID: %d", os.Getpid())
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}
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// Set pid file setting
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if ctx.IsSet("pid") {
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setting.CustomPID = ctx.String("pid")
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}
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// Perform global initialization
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routers.GlobalInit()
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// Set up Macaron
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m := routes.NewMacaron()
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routes.RegisterRoutes(m)
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@ -164,6 +169,7 @@ func runWeb(ctx *cli.Context) error {
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var err error
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switch setting.Protocol {
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case setting.HTTP:
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NoHTTPRedirector()
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err = runHTTP(listenAddr, context2.ClearHandler(m))
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case setting.HTTPS:
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if setting.EnableLetsEncrypt {
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@ -172,9 +178,15 @@ func runWeb(ctx *cli.Context) error {
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}
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if setting.RedirectOtherPort {
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go runHTTPRedirector()
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} else {
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NoHTTPRedirector()
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}
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err = runHTTPS(listenAddr, setting.CertFile, setting.KeyFile, context2.ClearHandler(m))
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case setting.FCGI:
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NoHTTPRedirector()
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// FCGI listeners are provided as stdin - this is orthogonal to the LISTEN_FDS approach
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// in graceful and systemD
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NoMainListener()
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var listener net.Listener
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listener, err = net.Listen("tcp", listenAddr)
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if err != nil {
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@ -187,6 +199,10 @@ func runWeb(ctx *cli.Context) error {
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}()
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err = fcgi.Serve(listener, context2.ClearHandler(m))
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case setting.UnixSocket:
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// This could potentially be inherited using LISTEN_FDS but currently
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// these cannot be inherited
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NoHTTPRedirector()
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NoMainListener()
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if err := os.Remove(listenAddr); err != nil && !os.IsNotExist(err) {
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log.Fatal("Failed to remove unix socket directory %s: %v", listenAddr, err)
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}
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@ -207,8 +223,9 @@ func runWeb(ctx *cli.Context) error {
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}
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if err != nil {
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log.Fatal("Failed to start server: %v", err)
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log.Critical("Failed to start server: %v", err)
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}
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log.Info("HTTP Listener: %s Closed", listenAddr)
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log.Close()
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return nil
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}
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@ -10,36 +10,28 @@ import (
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"crypto/tls"
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"net/http"
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"code.gitea.io/gitea/modules/log"
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"github.com/facebookgo/grace/gracehttp"
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"code.gitea.io/gitea/modules/graceful"
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)
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func runHTTP(listenAddr string, m http.Handler) error {
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return gracehttp.Serve(&http.Server{
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Addr: listenAddr,
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Handler: m,
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})
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return graceful.HTTPListenAndServe("tcp", listenAddr, m)
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}
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func runHTTPS(listenAddr, certFile, keyFile string, m http.Handler) error {
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config := &tls.Config{
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MinVersion: tls.VersionTLS10,
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}
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if config.NextProtos == nil {
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config.NextProtos = []string{"http/1.1"}
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}
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config.Certificates = make([]tls.Certificate, 1)
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var err error
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config.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
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if err != nil {
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log.Fatal("Failed to load https cert file %s: %v", listenAddr, err)
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}
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return gracehttp.Serve(&http.Server{
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Addr: listenAddr,
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Handler: m,
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TLSConfig: config,
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})
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return graceful.HTTPListenAndServeTLS("tcp", listenAddr, certFile, keyFile, m)
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}
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func runHTTPSWithTLSConfig(listenAddr string, tlsConfig *tls.Config, m http.Handler) error {
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return graceful.HTTPListenAndServeTLSConfig("tcp", listenAddr, tlsConfig, m)
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}
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// NoHTTPRedirector tells our cleanup routine that we will not be using a fallback http redirector
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func NoHTTPRedirector() {
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graceful.InformCleanup()
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}
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// NoMainListener tells our cleanup routine that we will not be using a possibly provided listener
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// for our main HTTP/HTTPS service
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func NoMainListener() {
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graceful.InformCleanup()
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}
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@ -7,6 +7,7 @@
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package cmd
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import (
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"crypto/tls"
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"net/http"
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)
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@ -17,3 +18,20 @@ func runHTTP(listenAddr string, m http.Handler) error {
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func runHTTPS(listenAddr, certFile, keyFile string, m http.Handler) error {
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return http.ListenAndServeTLS(listenAddr, certFile, keyFile, m)
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}
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func runHTTPSWithTLSConfig(listenAddr string, tlsConfig *tls.Config, m http.Handler) error {
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server := &http.Server{
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Addr: listenAddr,
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Handler: m,
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TLSConfig: tlsConfig,
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}
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return server.ListenAndServeTLS("", "")
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}
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// NoHTTPRedirector is a no-op on Windows
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func NoHTTPRedirector() {
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}
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// NoMainListener is a no-op on Windows
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func NoMainListener() {
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}
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@ -244,6 +244,12 @@ LFS_CONTENT_PATH = data/lfs
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LFS_JWT_SECRET =
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; LFS authentication validity period (in time.Duration), pushes taking longer than this may fail.
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LFS_HTTP_AUTH_EXPIRY = 20m
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; Allow graceful restarts using SIGHUP to fork
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ALLOW_GRACEFUL_RESTARTS = true
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; After a restart the parent will finish ongoing requests before
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; shutting down. Force shutdown if this process takes longer than this delay.
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; set to a negative value to disable
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GRACEFUL_HAMMER_TIME = 60s
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; Static resources, includes resources on custom/, public/ and all uploaded avatars web browser cache time, default is 6h
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STATIC_CACHE_TIME = 6h
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@ -299,6 +305,9 @@ ISSUE_INDEXER_QUEUE_DIR = indexers/issues.queue
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ISSUE_INDEXER_QUEUE_CONN_STR = "addrs=127.0.0.1:6379 db=0"
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; Batch queue number, default is 20
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ISSUE_INDEXER_QUEUE_BATCH_NUMBER = 20
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; Timeout the indexer if it takes longer than this to start.
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; Set to zero to disable timeout.
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STARTUP_TIMEOUT=30s
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; repo indexer by default disabled, since it uses a lot of disk space
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REPO_INDEXER_ENABLED = false
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@ -157,6 +157,8 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
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- `LETSENCRYPT_ACCEPTTOS`: **false**: This is an explicit check that you accept the terms of service for Let's Encrypt.
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- `LETSENCRYPT_DIRECTORY`: **https**: Directory that Letsencrypt will use to cache information such as certs and private keys.
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- `LETSENCRYPT_EMAIL`: **email@example.com**: Email used by Letsencrypt to notify about problems with issued certificates. (No default)
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- `ALLOW_GRACEFUL_RESTARTS`: **true**: Perform a graceful restart on SIGHUP
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- `GRACEFUL_HAMMER_TIME`: **60s**: After a restart the parent process will stop accepting new connections and will allow requests to finish before stopping. Shutdown will be forced if it takes longer than this time.
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## Database (`database`)
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@ -189,6 +191,7 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
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- `REPO_INDEXER_EXCLUDE`: **empty**: A comma separated list of glob patterns (see https://github.com/gobwas/glob) to **exclude** from the index. Files that match this list will not be indexed, even if they match in `REPO_INDEXER_INCLUDE`.
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- `UPDATE_BUFFER_LEN`: **20**: Buffer length of index request.
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- `MAX_FILE_SIZE`: **1048576**: Maximum size in bytes of files to be indexed.
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- `STARTUP_TIMEOUT`: **30s**: If the indexer takes longer than this timeout to start - fail. (This timeout will be added to the hammer time above for child processes - as bleve will not start until the previous parent is shutdown.) Set to zero to never timeout.
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## Admin (`admin`)
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- `DEFAULT_EMAIL_NOTIFICATIONS`: **enabled**: Default configuration for email notifications for users (user configurable). Options: enabled, onmention, disabled
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5
go.mod
5
go.mod
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@ -32,13 +32,8 @@ require (
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github.com/emirpasic/gods v1.12.0
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github.com/etcd-io/bbolt v1.3.2 // indirect
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github.com/ethantkoenig/rupture v0.0.0-20180203182544-0a76f03a811a
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github.com/facebookgo/clock v0.0.0-20150410010913-600d898af40a // indirect
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github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 // indirect
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github.com/facebookgo/freeport v0.0.0-20150612182905-d4adf43b75b9 // indirect
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github.com/facebookgo/grace v0.0.0-20160926231715-5729e484473f
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github.com/facebookgo/httpdown v0.0.0-20160323221027-a3b1354551a2 // indirect
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github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 // indirect
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github.com/facebookgo/stats v0.0.0-20151006221625-1b76add642e4 // indirect
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github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 // indirect
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github.com/gliderlabs/ssh v0.2.2
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github.com/glycerine/go-unsnap-stream v0.0.0-20180323001048-9f0cb55181dd // indirect
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10
go.sum
10
go.sum
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@ -142,20 +142,10 @@ github.com/etcd-io/bbolt v1.3.2 h1:RLRQ0TKLX7DlBRXAJHvbmXL17Q3KNnTBtZ9B6Qo+/Y0=
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github.com/etcd-io/bbolt v1.3.2/go.mod h1:ZF2nL25h33cCyBtcyWeZ2/I3HQOfTP+0PIEvHjkjCrw=
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github.com/ethantkoenig/rupture v0.0.0-20180203182544-0a76f03a811a h1:M1bRpaZAn4GSsqu3hdK2R8H0AH9O6vqCTCbm2oAFGfE=
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github.com/ethantkoenig/rupture v0.0.0-20180203182544-0a76f03a811a/go.mod h1:MkKY/CB98aVE4VxO63X5vTQKUgcn+3XP15LMASe3lYs=
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github.com/facebookgo/clock v0.0.0-20150410010913-600d898af40a h1:yDWHCSQ40h88yih2JAcL6Ls/kVkSE8GFACTGVnMPruw=
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github.com/facebookgo/clock v0.0.0-20150410010913-600d898af40a/go.mod h1:7Ga40egUymuWXxAe151lTNnCv97MddSOVsjpPPkityA=
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github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 h1:0JZ+dUmQeA8IIVUMzysrX4/AKuQwWhV2dYQuPZdvdSQ=
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github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51/go.mod h1:Yg+htXGokKKdzcwhuNDwVvN+uBxDGXJ7G/VN1d8fa64=
|
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github.com/facebookgo/freeport v0.0.0-20150612182905-d4adf43b75b9 h1:wWke/RUCl7VRjQhwPlR/v0glZXNYzBHdNUzf/Am2Nmg=
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github.com/facebookgo/freeport v0.0.0-20150612182905-d4adf43b75b9/go.mod h1:uPmAp6Sws4L7+Q/OokbWDAK1ibXYhB3PXFP1kol5hPg=
|
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github.com/facebookgo/grace v0.0.0-20160926231715-5729e484473f h1:0mlfEUWnUDVZnqWEVHGerL5bKYDKMEmT/Qk/W/3nGuo=
|
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github.com/facebookgo/grace v0.0.0-20160926231715-5729e484473f/go.mod h1:KigFdumBXUPSwzLDbeuzyt0elrL7+CP7TKuhrhT4bcU=
|
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github.com/facebookgo/httpdown v0.0.0-20160323221027-a3b1354551a2 h1:3Zvf9wRhl1cOhckN1oRGWPOkIhOketmEcrQ4TeFAoR4=
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github.com/facebookgo/httpdown v0.0.0-20160323221027-a3b1354551a2/go.mod h1:TUV/fX3XrTtBQb5+ttSUJzcFgLNpILONFTKmBuk5RSw=
|
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github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 h1:JWuenKqqX8nojtoVVWjGfOF9635RETekkoH6Cc9SX0A=
|
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github.com/facebookgo/stack v0.0.0-20160209184415-751773369052/go.mod h1:UbMTZqLaRiH3MsBH8va0n7s1pQYcu3uTb8G4tygF4Zg=
|
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github.com/facebookgo/stats v0.0.0-20151006221625-1b76add642e4 h1:0YtRCqIZs2+Tz49QuH6cJVw/IFqzo39gEqZ0iYLxD2M=
|
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github.com/facebookgo/stats v0.0.0-20151006221625-1b76add642e4/go.mod h1:vsJz7uE339KUCpBXx3JAJzSRH7Uk4iGGyJzR529qDIA=
|
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github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 h1:E2s37DuLxFhQDg5gKsWoLBOB0n+ZW8s599zru8FJ2/Y=
|
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github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870/go.mod h1:5tD+neXqOorC30/tWg0LCSkrqj/AR6gu8yY8/fpw1q0=
|
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github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 h1:BHsljHzVlRcyQhjrss6TZTdY2VfCqZPbv5k3iBFa2ZQ=
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|
|
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@ -8,10 +8,12 @@ import (
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"fmt"
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"strconv"
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"strings"
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"time"
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||||
|
||||
"code.gitea.io/gitea/modules/base"
|
||||
"code.gitea.io/gitea/modules/charset"
|
||||
"code.gitea.io/gitea/modules/git"
|
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"code.gitea.io/gitea/modules/graceful"
|
||||
"code.gitea.io/gitea/modules/indexer"
|
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"code.gitea.io/gitea/modules/log"
|
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"code.gitea.io/gitea/modules/setting"
|
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|
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@ -70,9 +72,30 @@ func InitRepoIndexer() {
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if !setting.Indexer.RepoIndexerEnabled {
|
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return
|
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}
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waitChannel := make(chan time.Duration)
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repoIndexerOperationQueue = make(chan repoIndexerOperation, setting.Indexer.UpdateQueueLength)
|
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indexer.InitRepoIndexer(populateRepoIndexerAsynchronously)
|
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go processRepoIndexerOperationQueue()
|
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go func() {
|
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start := time.Now()
|
||||
log.Info("Initializing Repository Indexer")
|
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indexer.InitRepoIndexer(populateRepoIndexerAsynchronously)
|
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go processRepoIndexerOperationQueue()
|
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waitChannel <- time.Since(start)
|
||||
}()
|
||||
if setting.Indexer.StartupTimeout > 0 {
|
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go func() {
|
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timeout := setting.Indexer.StartupTimeout
|
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if graceful.IsChild && setting.GracefulHammerTime > 0 {
|
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timeout += setting.GracefulHammerTime
|
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}
|
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select {
|
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case duration := <-waitChannel:
|
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log.Info("Repository Indexer Initialization took %v", duration)
|
||||
case <-time.After(timeout):
|
||||
log.Fatal("Repository Indexer Initialization Timed-Out after: %v", timeout)
|
||||
}
|
||||
}()
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
// populateRepoIndexerAsynchronously asynchronously populates the repo indexer
|
||||
|
|
|
|||
|
|
@ -0,0 +1,38 @@
|
|||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package graceful
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||||
|
||||
import "sync"
|
||||
|
||||
var cleanupWaitGroup sync.WaitGroup
|
||||
|
||||
func init() {
|
||||
cleanupWaitGroup = sync.WaitGroup{}
|
||||
|
||||
// There are three places that could inherit sockets:
|
||||
//
|
||||
// * HTTP or HTTPS main listener
|
||||
// * HTTP redirection fallback
|
||||
// * SSH
|
||||
//
|
||||
// If you add an additional place you must increment this number
|
||||
// and add a function to call InformCleanup if it's not going to be used
|
||||
cleanupWaitGroup.Add(3)
|
||||
|
||||
// Wait till we're done getting all of the listeners and then close
|
||||
// the unused ones
|
||||
go func() {
|
||||
cleanupWaitGroup.Wait()
|
||||
// Ignore the error here there's not much we can do with it
|
||||
// They're logged in the CloseProvidedListeners function
|
||||
_ = CloseProvidedListeners()
|
||||
}()
|
||||
}
|
||||
|
||||
// InformCleanup tells the cleanup wait group that we have either taken a listener
|
||||
// or will not be taking a listener
|
||||
func InformCleanup() {
|
||||
cleanupWaitGroup.Done()
|
||||
}
|
||||
|
|
@ -0,0 +1,209 @@
|
|||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
// This code is heavily inspired by the archived gofacebook/gracenet/net.go handler
|
||||
|
||||
package graceful
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net"
|
||||
"os"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
)
|
||||
|
||||
const (
|
||||
listenFDs = "LISTEN_FDS"
|
||||
startFD = 3
|
||||
)
|
||||
|
||||
// In order to keep the working directory the same as when we started we record
|
||||
// it at startup.
|
||||
var originalWD, _ = os.Getwd()
|
||||
|
||||
var (
|
||||
once = sync.Once{}
|
||||
mutex = sync.Mutex{}
|
||||
|
||||
providedListeners = []net.Listener{}
|
||||
activeListeners = []net.Listener{}
|
||||
)
|
||||
|
||||
func getProvidedFDs() (savedErr error) {
|
||||
// Only inherit the provided FDS once but we will save the error so that repeated calls to this function will return the same error
|
||||
once.Do(func() {
|
||||
mutex.Lock()
|
||||
defer mutex.Unlock()
|
||||
|
||||
numFDs := os.Getenv(listenFDs)
|
||||
if numFDs == "" {
|
||||
return
|
||||
}
|
||||
n, err := strconv.Atoi(numFDs)
|
||||
if err != nil {
|
||||
savedErr = fmt.Errorf("%s is not a number: %s. Err: %v", listenFDs, numFDs, err)
|
||||
return
|
||||
}
|
||||
|
||||
for i := startFD; i < n+startFD; i++ {
|
||||
file := os.NewFile(uintptr(i), fmt.Sprintf("listener_FD%d", i))
|
||||
|
||||
l, err := net.FileListener(file)
|
||||
if err == nil {
|
||||
// Close the inherited file if it's a listener
|
||||
if err = file.Close(); err != nil {
|
||||
savedErr = fmt.Errorf("error closing provided socket fd %d: %s", i, err)
|
||||
return
|
||||
}
|
||||
providedListeners = append(providedListeners, l)
|
||||
continue
|
||||
}
|
||||
|
||||
// If needed we can handle packetconns here.
|
||||
savedErr = fmt.Errorf("Error getting provided socket fd %d: %v", i, err)
|
||||
return
|
||||
}
|
||||
})
|
||||
return savedErr
|
||||
}
|
||||
|
||||
// CloseProvidedListeners closes all unused provided listeners.
|
||||
func CloseProvidedListeners() error {
|
||||
mutex.Lock()
|
||||
defer mutex.Unlock()
|
||||
var returnableError error
|
||||
for _, l := range providedListeners {
|
||||
err := l.Close()
|
||||
if err != nil {
|
||||
log.Error("Error in closing unused provided listener: %v", err)
|
||||
if returnableError != nil {
|
||||
returnableError = fmt.Errorf("%v & %v", returnableError, err)
|
||||
} else {
|
||||
returnableError = err
|
||||
}
|
||||
}
|
||||
}
|
||||
providedListeners = []net.Listener{}
|
||||
|
||||
return returnableError
|
||||
}
|
||||
|
||||
// GetListener obtains a listener for the local network address. The network must be
|
||||
// a stream-oriented network: "tcp", "tcp4", "tcp6", "unix" or "unixpacket". It
|
||||
// returns an provided net.Listener for the matching network and address, or
|
||||
// creates a new one using net.Listen.
|
||||
func GetListener(network, address string) (net.Listener, error) {
|
||||
// Add a deferral to say that we've tried to grab a listener
|
||||
defer InformCleanup()
|
||||
switch network {
|
||||
case "tcp", "tcp4", "tcp6":
|
||||
tcpAddr, err := net.ResolveTCPAddr(network, address)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return GetListenerTCP(network, tcpAddr)
|
||||
case "unix", "unixpacket":
|
||||
unixAddr, err := net.ResolveUnixAddr(network, address)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return GetListenerUnix(network, unixAddr)
|
||||
default:
|
||||
return nil, net.UnknownNetworkError(network)
|
||||
}
|
||||
}
|
||||
|
||||
// GetListenerTCP announces on the local network address. The network must be:
|
||||
// "tcp", "tcp4" or "tcp6". It returns a provided net.Listener for the
|
||||
// matching network and address, or creates a new one using net.ListenTCP.
|
||||
func GetListenerTCP(network string, address *net.TCPAddr) (*net.TCPListener, error) {
|
||||
if err := getProvidedFDs(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
mutex.Lock()
|
||||
defer mutex.Unlock()
|
||||
|
||||
// look for a provided listener
|
||||
for i, l := range providedListeners {
|
||||
if isSameAddr(l.Addr(), address) {
|
||||
providedListeners = append(providedListeners[:i], providedListeners[i+1:]...)
|
||||
|
||||
activeListeners = append(activeListeners, l)
|
||||
return l.(*net.TCPListener), nil
|
||||
}
|
||||
}
|
||||
|
||||
// no provided listener for this address -> make a fresh listener
|
||||
l, err := net.ListenTCP(network, address)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
activeListeners = append(activeListeners, l)
|
||||
return l, nil
|
||||
}
|
||||
|
||||
// GetListenerUnix announces on the local network address. The network must be:
|
||||
// "unix" or "unixpacket". It returns a provided net.Listener for the
|
||||
// matching network and address, or creates a new one using net.ListenUnix.
|
||||
func GetListenerUnix(network string, address *net.UnixAddr) (*net.UnixListener, error) {
|
||||
if err := getProvidedFDs(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
mutex.Lock()
|
||||
defer mutex.Unlock()
|
||||
|
||||
// look for a provided listener
|
||||
for i, l := range providedListeners {
|
||||
if isSameAddr(l.Addr(), address) {
|
||||
providedListeners = append(providedListeners[:i], providedListeners[i+1:]...)
|
||||
activeListeners = append(activeListeners, l)
|
||||
return l.(*net.UnixListener), nil
|
||||
}
|
||||
}
|
||||
|
||||
// make a fresh listener
|
||||
l, err := net.ListenUnix(network, address)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
activeListeners = append(activeListeners, l)
|
||||
return l, nil
|
||||
}
|
||||
|
||||
func isSameAddr(a1, a2 net.Addr) bool {
|
||||
// If the addresses are not on the same network fail.
|
||||
if a1.Network() != a2.Network() {
|
||||
return false
|
||||
}
|
||||
|
||||
// If the two addresses have the same string representation they're equal
|
||||
a1s := a1.String()
|
||||
a2s := a2.String()
|
||||
if a1s == a2s {
|
||||
return true
|
||||
}
|
||||
|
||||
// This allows for ipv6 vs ipv4 local addresses to compare as equal. This
|
||||
// scenario is common when listening on localhost.
|
||||
const ipv6prefix = "[::]"
|
||||
a1s = strings.TrimPrefix(a1s, ipv6prefix)
|
||||
a2s = strings.TrimPrefix(a2s, ipv6prefix)
|
||||
const ipv4prefix = "0.0.0.0"
|
||||
a1s = strings.TrimPrefix(a1s, ipv4prefix)
|
||||
a2s = strings.TrimPrefix(a2s, ipv4prefix)
|
||||
return a1s == a2s
|
||||
}
|
||||
|
||||
func getActiveListeners() []net.Listener {
|
||||
mutex.Lock()
|
||||
defer mutex.Unlock()
|
||||
listeners := make([]net.Listener, len(activeListeners))
|
||||
copy(listeners, activeListeners)
|
||||
return listeners
|
||||
}
|
||||
|
|
@ -0,0 +1,67 @@
|
|||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
// This code is heavily inspired by the archived gofacebook/gracenet/net.go handler
|
||||
|
||||
package graceful
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"os/exec"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// RestartProcess starts a new process passing it the active listeners. It
|
||||
// doesn't fork, but starts a new process using the same environment and
|
||||
// arguments as when it was originally started. This allows for a newly
|
||||
// deployed binary to be started. It returns the pid of the newly started
|
||||
// process when successful.
|
||||
func RestartProcess() (int, error) {
|
||||
listeners := getActiveListeners()
|
||||
|
||||
// Extract the fds from the listeners.
|
||||
files := make([]*os.File, len(listeners))
|
||||
for i, l := range listeners {
|
||||
var err error
|
||||
// Now, all our listeners actually have File() functions so instead of
|
||||
// individually casting we just use a hacky interface
|
||||
files[i], err = l.(filer).File()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
// Remember to close these at the end.
|
||||
defer files[i].Close()
|
||||
}
|
||||
|
||||
// Use the original binary location. This works with symlinks such that if
|
||||
// the file it points to has been changed we will use the updated symlink.
|
||||
argv0, err := exec.LookPath(os.Args[0])
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
// Pass on the environment and replace the old count key with the new one.
|
||||
var env []string
|
||||
for _, v := range os.Environ() {
|
||||
if !strings.HasPrefix(v, listenFDs+"=") {
|
||||
env = append(env, v)
|
||||
}
|
||||
}
|
||||
env = append(env, fmt.Sprintf("%s=%d", listenFDs, len(listeners)))
|
||||
|
||||
allFiles := append([]*os.File{os.Stdin, os.Stdout, os.Stderr}, files...)
|
||||
process, err := os.StartProcess(argv0, os.Args, &os.ProcAttr{
|
||||
Dir: originalWD,
|
||||
Env: env,
|
||||
Files: allFiles,
|
||||
})
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return process.Pid, nil
|
||||
}
|
||||
|
||||
type filer interface {
|
||||
File() (*os.File, error)
|
||||
}
|
||||
|
|
@ -0,0 +1,267 @@
|
|||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
// This code is highly inspired by endless go
|
||||
|
||||
package graceful
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"net"
|
||||
"os"
|
||||
"strings"
|
||||
"sync"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
)
|
||||
|
||||
type state uint8
|
||||
|
||||
const (
|
||||
stateInit state = iota
|
||||
stateRunning
|
||||
stateShuttingDown
|
||||
stateTerminate
|
||||
)
|
||||
|
||||
var (
|
||||
// RWMutex for when adding servers or shutting down
|
||||
runningServerReg sync.RWMutex
|
||||
// ensure we only fork once
|
||||
runningServersForked bool
|
||||
|
||||
// DefaultReadTimeOut default read timeout
|
||||
DefaultReadTimeOut time.Duration
|
||||
// DefaultWriteTimeOut default write timeout
|
||||
DefaultWriteTimeOut time.Duration
|
||||
// DefaultMaxHeaderBytes default max header bytes
|
||||
DefaultMaxHeaderBytes int
|
||||
|
||||
// IsChild reports if we are a fork iff LISTEN_FDS is set and our parent PID is not 1
|
||||
IsChild = len(os.Getenv(listenFDs)) > 0 && os.Getppid() > 1
|
||||
)
|
||||
|
||||
func init() {
|
||||
runningServerReg = sync.RWMutex{}
|
||||
|
||||
DefaultMaxHeaderBytes = 0 // use http.DefaultMaxHeaderBytes - which currently is 1 << 20 (1MB)
|
||||
}
|
||||
|
||||
// ServeFunction represents a listen.Accept loop
|
||||
type ServeFunction = func(net.Listener) error
|
||||
|
||||
// Server represents our graceful server
|
||||
type Server struct {
|
||||
network string
|
||||
address string
|
||||
listener net.Listener
|
||||
PreSignalHooks map[os.Signal][]func()
|
||||
PostSignalHooks map[os.Signal][]func()
|
||||
wg sync.WaitGroup
|
||||
sigChan chan os.Signal
|
||||
state state
|
||||
lock *sync.RWMutex
|
||||
BeforeBegin func(network, address string)
|
||||
OnShutdown func()
|
||||
}
|
||||
|
||||
// NewServer creates a server on network at provided address
|
||||
func NewServer(network, address string) *Server {
|
||||
runningServerReg.Lock()
|
||||
defer runningServerReg.Unlock()
|
||||
|
||||
if IsChild {
|
||||
log.Info("Restarting new server: %s:%s on PID: %d", network, address, os.Getpid())
|
||||
} else {
|
||||
log.Info("Starting new server: %s:%s on PID: %d", network, address, os.Getpid())
|
||||
}
|
||||
srv := &Server{
|
||||
wg: sync.WaitGroup{},
|
||||
sigChan: make(chan os.Signal),
|
||||
PreSignalHooks: map[os.Signal][]func(){},
|
||||
PostSignalHooks: map[os.Signal][]func(){},
|
||||
state: stateInit,
|
||||
lock: &sync.RWMutex{},
|
||||
network: network,
|
||||
address: address,
|
||||
}
|
||||
|
||||
srv.BeforeBegin = func(network, addr string) {
|
||||
log.Debug("Starting server on %s:%s (PID: %d)", network, addr, syscall.Getpid())
|
||||
}
|
||||
|
||||
return srv
|
||||
}
|
||||
|
||||
// ListenAndServe listens on the provided network address and then calls Serve
|
||||
// to handle requests on incoming connections.
|
||||
func (srv *Server) ListenAndServe(serve ServeFunction) error {
|
||||
go srv.handleSignals()
|
||||
|
||||
l, err := GetListener(srv.network, srv.address)
|
||||
if err != nil {
|
||||
log.Error("Unable to GetListener: %v", err)
|
||||
return err
|
||||
}
|
||||
|
||||
srv.listener = newWrappedListener(l, srv)
|
||||
|
||||
if IsChild {
|
||||
_ = syscall.Kill(syscall.Getppid(), syscall.SIGTERM)
|
||||
}
|
||||
|
||||
srv.BeforeBegin(srv.network, srv.address)
|
||||
|
||||
return srv.Serve(serve)
|
||||
}
|
||||
|
||||
// ListenAndServeTLS listens on the provided network address and then calls
|
||||
// Serve to handle requests on incoming TLS connections.
|
||||
//
|
||||
// Filenames containing a certificate and matching private key for the server must
|
||||
// be provided. If the certificate is signed by a certificate authority, the
|
||||
// certFile should be the concatenation of the server's certificate followed by the
|
||||
// CA's certificate.
|
||||
func (srv *Server) ListenAndServeTLS(certFile, keyFile string, serve ServeFunction) error {
|
||||
config := &tls.Config{}
|
||||
if config.NextProtos == nil {
|
||||
config.NextProtos = []string{"http/1.1"}
|
||||
}
|
||||
|
||||
config.Certificates = make([]tls.Certificate, 1)
|
||||
var err error
|
||||
config.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
|
||||
if err != nil {
|
||||
log.Error("Failed to load https cert file %s for %s:%s: %v", certFile, srv.network, srv.address, err)
|
||||
return err
|
||||
}
|
||||
return srv.ListenAndServeTLSConfig(config, serve)
|
||||
}
|
||||
|
||||
// ListenAndServeTLSConfig listens on the provided network address and then calls
|
||||
// Serve to handle requests on incoming TLS connections.
|
||||
func (srv *Server) ListenAndServeTLSConfig(tlsConfig *tls.Config, serve ServeFunction) error {
|
||||
go srv.handleSignals()
|
||||
|
||||
l, err := GetListener(srv.network, srv.address)
|
||||
if err != nil {
|
||||
log.Error("Unable to get Listener: %v", err)
|
||||
return err
|
||||
}
|
||||
|
||||
wl := newWrappedListener(l, srv)
|
||||
srv.listener = tls.NewListener(wl, tlsConfig)
|
||||
|
||||
if IsChild {
|
||||
_ = syscall.Kill(syscall.Getppid(), syscall.SIGTERM)
|
||||
}
|
||||
srv.BeforeBegin(srv.network, srv.address)
|
||||
|
||||
return srv.Serve(serve)
|
||||
}
|
||||
|
||||
// Serve accepts incoming HTTP connections on the wrapped listener l, creating a new
|
||||
// service goroutine for each. The service goroutines read requests and then call
|
||||
// handler to reply to them. Handler is typically nil, in which case the
|
||||
// DefaultServeMux is used.
|
||||
//
|
||||
// In addition to the standard Serve behaviour each connection is added to a
|
||||
// sync.Waitgroup so that all outstanding connections can be served before shutting
|
||||
// down the server.
|
||||
func (srv *Server) Serve(serve ServeFunction) error {
|
||||
defer log.Debug("Serve() returning... (PID: %d)", syscall.Getpid())
|
||||
srv.setState(stateRunning)
|
||||
err := serve(srv.listener)
|
||||
log.Debug("Waiting for connections to finish... (PID: %d)", syscall.Getpid())
|
||||
srv.wg.Wait()
|
||||
srv.setState(stateTerminate)
|
||||
// use of closed means that the listeners are closed - i.e. we should be shutting down - return nil
|
||||
if err != nil && strings.Contains(err.Error(), "use of closed") {
|
||||
return nil
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
func (srv *Server) getState() state {
|
||||
srv.lock.RLock()
|
||||
defer srv.lock.RUnlock()
|
||||
|
||||
return srv.state
|
||||
}
|
||||
|
||||
func (srv *Server) setState(st state) {
|
||||
srv.lock.Lock()
|
||||
defer srv.lock.Unlock()
|
||||
|
||||
srv.state = st
|
||||
}
|
||||
|
||||
type wrappedListener struct {
|
||||
net.Listener
|
||||
stopped bool
|
||||
server *Server
|
||||
}
|
||||
|
||||
func newWrappedListener(l net.Listener, srv *Server) *wrappedListener {
|
||||
return &wrappedListener{
|
||||
Listener: l,
|
||||
server: srv,
|
||||
}
|
||||
}
|
||||
|
||||
func (wl *wrappedListener) Accept() (net.Conn, error) {
|
||||
var c net.Conn
|
||||
// Set keepalive on TCPListeners connections.
|
||||
if tcl, ok := wl.Listener.(*net.TCPListener); ok {
|
||||
tc, err := tcl.AcceptTCP()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
_ = tc.SetKeepAlive(true) // see http.tcpKeepAliveListener
|
||||
_ = tc.SetKeepAlivePeriod(3 * time.Minute) // see http.tcpKeepAliveListener
|
||||
c = tc
|
||||
} else {
|
||||
var err error
|
||||
c, err = wl.Listener.Accept()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
c = wrappedConn{
|
||||
Conn: c,
|
||||
server: wl.server,
|
||||
}
|
||||
|
||||
wl.server.wg.Add(1)
|
||||
return c, nil
|
||||
}
|
||||
|
||||
func (wl *wrappedListener) Close() error {
|
||||
if wl.stopped {
|
||||
return syscall.EINVAL
|
||||
}
|
||||
|
||||
wl.stopped = true
|
||||
return wl.Listener.Close()
|
||||
}
|
||||
|
||||
func (wl *wrappedListener) File() (*os.File, error) {
|
||||
// returns a dup(2) - FD_CLOEXEC flag *not* set so the listening socket can be passed to child processes
|
||||
return wl.Listener.(filer).File()
|
||||
}
|
||||
|
||||
type wrappedConn struct {
|
||||
net.Conn
|
||||
server *Server
|
||||
}
|
||||
|
||||
func (w wrappedConn) Close() error {
|
||||
err := w.Conn.Close()
|
||||
if err == nil {
|
||||
w.server.wg.Done()
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
|
@ -0,0 +1,119 @@
|
|||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package graceful
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"os"
|
||||
"runtime"
|
||||
"time"
|
||||
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
"code.gitea.io/gitea/modules/setting"
|
||||
)
|
||||
|
||||
// shutdown closes the listener so that no new connections are accepted
|
||||
// and starts a goroutine that will hammer (stop all running requests) the server
|
||||
// after setting.GracefulHammerTime.
|
||||
func (srv *Server) shutdown() {
|
||||
// only shutdown if we're running.
|
||||
if srv.getState() != stateRunning {
|
||||
return
|
||||
}
|
||||
|
||||
srv.setState(stateShuttingDown)
|
||||
if setting.GracefulHammerTime >= 0 {
|
||||
go srv.hammerTime(setting.GracefulHammerTime)
|
||||
}
|
||||
|
||||
if srv.OnShutdown != nil {
|
||||
srv.OnShutdown()
|
||||
}
|
||||
err := srv.listener.Close()
|
||||
if err != nil {
|
||||
log.Error("PID: %d Listener.Close() error: %v", os.Getpid(), err)
|
||||
} else {
|
||||
log.Info("PID: %d Listener (%s) closed.", os.Getpid(), srv.listener.Addr())
|
||||
}
|
||||
}
|
||||
|
||||
// hammerTime forces the server to shutdown in a given timeout - whether it
|
||||
// finished outstanding requests or not. if Read/WriteTimeout are not set or the
|
||||
// max header size is very big a connection could hang...
|
||||
//
|
||||
// srv.Serve() will not return until all connections are served. this will
|
||||
// unblock the srv.wg.Wait() in Serve() thus causing ListenAndServe* functions to
|
||||
// return.
|
||||
func (srv *Server) hammerTime(d time.Duration) {
|
||||
defer func() {
|
||||
// We call srv.wg.Done() until it panics.
|
||||
// This happens if we call Done() when the WaitGroup counter is already at 0
|
||||
// So if it panics -> we're done, Serve() will return and the
|
||||
// parent will goroutine will exit.
|
||||
if r := recover(); r != nil {
|
||||
log.Error("WaitGroup at 0: Error: %v", r)
|
||||
}
|
||||
}()
|
||||
if srv.getState() != stateShuttingDown {
|
||||
return
|
||||
}
|
||||
time.Sleep(d)
|
||||
log.Warn("Forcefully shutting down parent")
|
||||
for {
|
||||
if srv.getState() == stateTerminate {
|
||||
break
|
||||
}
|
||||
srv.wg.Done()
|
||||
|
||||
// Give other goroutines a chance to finish before we forcibly stop them.
|
||||
runtime.Gosched()
|
||||
}
|
||||
}
|
||||
|
||||
func (srv *Server) fork() error {
|
||||
runningServerReg.Lock()
|
||||
defer runningServerReg.Unlock()
|
||||
|
||||
// only one server instance should fork!
|
||||
if runningServersForked {
|
||||
return errors.New("another process already forked. Ignoring this one")
|
||||
}
|
||||
|
||||
runningServersForked = true
|
||||
|
||||
// We need to move the file logs to append pids
|
||||
setting.RestartLogsWithPIDSuffix()
|
||||
|
||||
_, err := RestartProcess()
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
// RegisterPreSignalHook registers a function to be run before the signal handler for
|
||||
// a given signal. These are not mutex locked and should therefore be only called before Serve.
|
||||
func (srv *Server) RegisterPreSignalHook(sig os.Signal, f func()) (err error) {
|
||||
for _, s := range hookableSignals {
|
||||
if s == sig {
|
||||
srv.PreSignalHooks[sig] = append(srv.PreSignalHooks[sig], f)
|
||||
return
|
||||
}
|
||||
}
|
||||
err = fmt.Errorf("Signal %v is not supported", sig)
|
||||
return
|
||||
}
|
||||
|
||||
// RegisterPostSignalHook registers a function to be run after the signal handler for
|
||||
// a given signal. These are not mutex locked and should therefore be only called before Serve.
|
||||
func (srv *Server) RegisterPostSignalHook(sig os.Signal, f func()) (err error) {
|
||||
for _, s := range hookableSignals {
|
||||
if s == sig {
|
||||
srv.PostSignalHooks[sig] = append(srv.PostSignalHooks[sig], f)
|
||||
return
|
||||
}
|
||||
}
|
||||
err = fmt.Errorf("Signal %v is not supported", sig)
|
||||
return
|
||||
}
|
||||
|
|
@ -0,0 +1,45 @@
|
|||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package graceful
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"net/http"
|
||||
)
|
||||
|
||||
func newHTTPServer(network, address string, handler http.Handler) (*Server, ServeFunction) {
|
||||
server := NewServer(network, address)
|
||||
httpServer := http.Server{
|
||||
ReadTimeout: DefaultReadTimeOut,
|
||||
WriteTimeout: DefaultWriteTimeOut,
|
||||
MaxHeaderBytes: DefaultMaxHeaderBytes,
|
||||
Handler: handler,
|
||||
}
|
||||
server.OnShutdown = func() {
|
||||
httpServer.SetKeepAlivesEnabled(false)
|
||||
}
|
||||
return server, httpServer.Serve
|
||||
}
|
||||
|
||||
// HTTPListenAndServe listens on the provided network address and then calls Serve
|
||||
// to handle requests on incoming connections.
|
||||
func HTTPListenAndServe(network, address string, handler http.Handler) error {
|
||||
server, lHandler := newHTTPServer(network, address, handler)
|
||||
return server.ListenAndServe(lHandler)
|
||||
}
|
||||
|
||||
// HTTPListenAndServeTLS listens on the provided network address and then calls Serve
|
||||
// to handle requests on incoming connections.
|
||||
func HTTPListenAndServeTLS(network, address, certFile, keyFile string, handler http.Handler) error {
|
||||
server, lHandler := newHTTPServer(network, address, handler)
|
||||
return server.ListenAndServeTLS(certFile, keyFile, lHandler)
|
||||
}
|
||||
|
||||
// HTTPListenAndServeTLSConfig listens on the provided network address and then calls Serve
|
||||
// to handle requests on incoming connections.
|
||||
func HTTPListenAndServeTLSConfig(network, address string, tlsConfig *tls.Config, handler http.Handler) error {
|
||||
server, lHandler := newHTTPServer(network, address, handler)
|
||||
return server.ListenAndServeTLSConfig(tlsConfig, lHandler)
|
||||
}
|
||||
|
|
@ -0,0 +1,93 @@
|
|||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package graceful
|
||||
|
||||
import (
|
||||
"os"
|
||||
"os/signal"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
"code.gitea.io/gitea/modules/setting"
|
||||
)
|
||||
|
||||
var hookableSignals []os.Signal
|
||||
|
||||
func init() {
|
||||
hookableSignals = []os.Signal{
|
||||
syscall.SIGHUP,
|
||||
syscall.SIGUSR1,
|
||||
syscall.SIGUSR2,
|
||||
syscall.SIGINT,
|
||||
syscall.SIGTERM,
|
||||
syscall.SIGTSTP,
|
||||
}
|
||||
}
|
||||
|
||||
// handleSignals listens for os Signals and calls any hooked in function that the
|
||||
// user had registered with the signal.
|
||||
func (srv *Server) handleSignals() {
|
||||
var sig os.Signal
|
||||
|
||||
signal.Notify(
|
||||
srv.sigChan,
|
||||
hookableSignals...,
|
||||
)
|
||||
|
||||
pid := syscall.Getpid()
|
||||
for {
|
||||
sig = <-srv.sigChan
|
||||
srv.preSignalHooks(sig)
|
||||
switch sig {
|
||||
case syscall.SIGHUP:
|
||||
if setting.GracefulRestartable {
|
||||
log.Info("PID: %d. Received SIGHUP. Forking...", pid)
|
||||
err := srv.fork()
|
||||
if err != nil {
|
||||
log.Error("Error whilst forking from PID: %d : %v", pid, err)
|
||||
}
|
||||
} else {
|
||||
log.Info("PID: %d. Received SIGHUP. Not set restartable. Shutting down...", pid)
|
||||
|
||||
srv.shutdown()
|
||||
}
|
||||
case syscall.SIGUSR1:
|
||||
log.Info("PID %d. Received SIGUSR1.", pid)
|
||||
case syscall.SIGUSR2:
|
||||
log.Warn("PID %d. Received SIGUSR2. Hammering...", pid)
|
||||
srv.hammerTime(0 * time.Second)
|
||||
case syscall.SIGINT:
|
||||
log.Warn("PID %d. Received SIGINT. Shutting down...", pid)
|
||||
srv.shutdown()
|
||||
case syscall.SIGTERM:
|
||||
log.Warn("PID %d. Received SIGTERM. Shutting down...", pid)
|
||||
srv.shutdown()
|
||||
case syscall.SIGTSTP:
|
||||
log.Info("PID %d. Received SIGTSTP.")
|
||||
default:
|
||||
log.Info("PID %d. Received %v.", sig)
|
||||
}
|
||||
srv.postSignalHooks(sig)
|
||||
}
|
||||
}
|
||||
|
||||
func (srv *Server) preSignalHooks(sig os.Signal) {
|
||||
if _, notSet := srv.PreSignalHooks[sig]; !notSet {
|
||||
return
|
||||
}
|
||||
for _, f := range srv.PreSignalHooks[sig] {
|
||||
f()
|
||||
}
|
||||
}
|
||||
|
||||
func (srv *Server) postSignalHooks(sig os.Signal) {
|
||||
if _, notSet := srv.PostSignalHooks[sig]; !notSet {
|
||||
return
|
||||
}
|
||||
for _, f := range srv.PostSignalHooks[sig] {
|
||||
f()
|
||||
}
|
||||
}
|
||||
|
|
@ -5,9 +5,11 @@
|
|||
package issues
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"code.gitea.io/gitea/models"
|
||||
"code.gitea.io/gitea/modules/graceful"
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
"code.gitea.io/gitea/modules/setting"
|
||||
"code.gitea.io/gitea/modules/util"
|
||||
|
|
@ -45,78 +47,143 @@ type Indexer interface {
|
|||
Search(kw string, repoID int64, limit, start int) (*SearchResult, error)
|
||||
}
|
||||
|
||||
type indexerHolder struct {
|
||||
indexer Indexer
|
||||
mutex sync.RWMutex
|
||||
cond *sync.Cond
|
||||
}
|
||||
|
||||
func newIndexerHolder() *indexerHolder {
|
||||
h := &indexerHolder{}
|
||||
h.cond = sync.NewCond(h.mutex.RLocker())
|
||||
return h
|
||||
}
|
||||
|
||||
func (h *indexerHolder) set(indexer Indexer) {
|
||||
h.mutex.Lock()
|
||||
defer h.mutex.Unlock()
|
||||
h.indexer = indexer
|
||||
h.cond.Broadcast()
|
||||
}
|
||||
|
||||
func (h *indexerHolder) get() Indexer {
|
||||
h.mutex.RLock()
|
||||
defer h.mutex.RUnlock()
|
||||
if h.indexer == nil {
|
||||
h.cond.Wait()
|
||||
}
|
||||
return h.indexer
|
||||
}
|
||||
|
||||
var (
|
||||
issueIndexerChannel = make(chan *IndexerData, setting.Indexer.UpdateQueueLength)
|
||||
// issueIndexerQueue queue of issue ids to be updated
|
||||
issueIndexerQueue Queue
|
||||
issueIndexer Indexer
|
||||
holder = newIndexerHolder()
|
||||
)
|
||||
|
||||
// InitIssueIndexer initialize issue indexer, syncReindex is true then reindex until
|
||||
// all issue index done.
|
||||
func InitIssueIndexer(syncReindex bool) error {
|
||||
var populate bool
|
||||
var dummyQueue bool
|
||||
switch setting.Indexer.IssueType {
|
||||
case "bleve":
|
||||
issueIndexer = NewBleveIndexer(setting.Indexer.IssuePath)
|
||||
exist, err := issueIndexer.Init()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
populate = !exist
|
||||
case "db":
|
||||
issueIndexer = &DBIndexer{}
|
||||
dummyQueue = true
|
||||
default:
|
||||
return fmt.Errorf("unknow issue indexer type: %s", setting.Indexer.IssueType)
|
||||
}
|
||||
|
||||
if dummyQueue {
|
||||
issueIndexerQueue = &DummyQueue{}
|
||||
return nil
|
||||
}
|
||||
|
||||
var err error
|
||||
switch setting.Indexer.IssueQueueType {
|
||||
case setting.LevelQueueType:
|
||||
issueIndexerQueue, err = NewLevelQueue(
|
||||
issueIndexer,
|
||||
setting.Indexer.IssueQueueDir,
|
||||
setting.Indexer.IssueQueueBatchNumber)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
case setting.ChannelQueueType:
|
||||
issueIndexerQueue = NewChannelQueue(issueIndexer, setting.Indexer.IssueQueueBatchNumber)
|
||||
case setting.RedisQueueType:
|
||||
addrs, pass, idx, err := parseConnStr(setting.Indexer.IssueQueueConnStr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
issueIndexerQueue, err = NewRedisQueue(addrs, pass, idx, issueIndexer, setting.Indexer.IssueQueueBatchNumber)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
default:
|
||||
return fmt.Errorf("Unsupported indexer queue type: %v", setting.Indexer.IssueQueueType)
|
||||
}
|
||||
|
||||
func InitIssueIndexer(syncReindex bool) {
|
||||
waitChannel := make(chan time.Duration)
|
||||
go func() {
|
||||
err = issueIndexerQueue.Run()
|
||||
if err != nil {
|
||||
log.Error("issueIndexerQueue.Run: %v", err)
|
||||
start := time.Now()
|
||||
log.Info("Initializing Issue Indexer")
|
||||
var populate bool
|
||||
var dummyQueue bool
|
||||
switch setting.Indexer.IssueType {
|
||||
case "bleve":
|
||||
issueIndexer := NewBleveIndexer(setting.Indexer.IssuePath)
|
||||
exist, err := issueIndexer.Init()
|
||||
if err != nil {
|
||||
log.Fatal("Unable to initialize Bleve Issue Indexer: %v", err)
|
||||
}
|
||||
populate = !exist
|
||||
holder.set(issueIndexer)
|
||||
case "db":
|
||||
issueIndexer := &DBIndexer{}
|
||||
holder.set(issueIndexer)
|
||||
dummyQueue = true
|
||||
default:
|
||||
log.Fatal("Unknown issue indexer type: %s", setting.Indexer.IssueType)
|
||||
}
|
||||
}()
|
||||
|
||||
if populate {
|
||||
if syncReindex {
|
||||
populateIssueIndexer()
|
||||
if dummyQueue {
|
||||
issueIndexerQueue = &DummyQueue{}
|
||||
} else {
|
||||
go populateIssueIndexer()
|
||||
}
|
||||
}
|
||||
var err error
|
||||
switch setting.Indexer.IssueQueueType {
|
||||
case setting.LevelQueueType:
|
||||
issueIndexerQueue, err = NewLevelQueue(
|
||||
holder.get(),
|
||||
setting.Indexer.IssueQueueDir,
|
||||
setting.Indexer.IssueQueueBatchNumber)
|
||||
if err != nil {
|
||||
log.Fatal(
|
||||
"Unable create level queue for issue queue dir: %s batch number: %d : %v",
|
||||
setting.Indexer.IssueQueueDir,
|
||||
setting.Indexer.IssueQueueBatchNumber,
|
||||
err)
|
||||
}
|
||||
case setting.ChannelQueueType:
|
||||
issueIndexerQueue = NewChannelQueue(holder.get(), setting.Indexer.IssueQueueBatchNumber)
|
||||
case setting.RedisQueueType:
|
||||
addrs, pass, idx, err := parseConnStr(setting.Indexer.IssueQueueConnStr)
|
||||
if err != nil {
|
||||
log.Fatal("Unable to parse connection string for RedisQueueType: %s : %v",
|
||||
setting.Indexer.IssueQueueConnStr,
|
||||
err)
|
||||
}
|
||||
issueIndexerQueue, err = NewRedisQueue(addrs, pass, idx, holder.get(), setting.Indexer.IssueQueueBatchNumber)
|
||||
if err != nil {
|
||||
log.Fatal("Unable to create RedisQueue: %s : %v",
|
||||
setting.Indexer.IssueQueueConnStr,
|
||||
err)
|
||||
}
|
||||
default:
|
||||
log.Fatal("Unsupported indexer queue type: %v",
|
||||
setting.Indexer.IssueQueueType)
|
||||
}
|
||||
|
||||
return nil
|
||||
go func() {
|
||||
err = issueIndexerQueue.Run()
|
||||
if err != nil {
|
||||
log.Error("issueIndexerQueue.Run: %v", err)
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
go func() {
|
||||
for data := range issueIndexerChannel {
|
||||
_ = issueIndexerQueue.Push(data)
|
||||
}
|
||||
}()
|
||||
|
||||
if populate {
|
||||
if syncReindex {
|
||||
populateIssueIndexer()
|
||||
} else {
|
||||
go populateIssueIndexer()
|
||||
}
|
||||
}
|
||||
waitChannel <- time.Since(start)
|
||||
}()
|
||||
if syncReindex {
|
||||
<-waitChannel
|
||||
} else if setting.Indexer.StartupTimeout > 0 {
|
||||
go func() {
|
||||
timeout := setting.Indexer.StartupTimeout
|
||||
if graceful.IsChild && setting.GracefulHammerTime > 0 {
|
||||
timeout += setting.GracefulHammerTime
|
||||
}
|
||||
select {
|
||||
case duration := <-waitChannel:
|
||||
log.Info("Issue Indexer Initialization took %v", duration)
|
||||
case <-time.After(timeout):
|
||||
log.Fatal("Issue Indexer Initialization timed-out after: %v", timeout)
|
||||
}
|
||||
}()
|
||||
}
|
||||
}
|
||||
|
||||
// populateIssueIndexer populate the issue indexer with issue data
|
||||
|
|
@ -166,13 +233,13 @@ func UpdateIssueIndexer(issue *models.Issue) {
|
|||
comments = append(comments, comment.Content)
|
||||
}
|
||||
}
|
||||
_ = issueIndexerQueue.Push(&IndexerData{
|
||||
issueIndexerChannel <- &IndexerData{
|
||||
ID: issue.ID,
|
||||
RepoID: issue.RepoID,
|
||||
Title: issue.Title,
|
||||
Content: issue.Content,
|
||||
Comments: comments,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// DeleteRepoIssueIndexer deletes repo's all issues indexes
|
||||
|
|
@ -188,16 +255,16 @@ func DeleteRepoIssueIndexer(repo *models.Repository) {
|
|||
return
|
||||
}
|
||||
|
||||
_ = issueIndexerQueue.Push(&IndexerData{
|
||||
issueIndexerChannel <- &IndexerData{
|
||||
IDs: ids,
|
||||
IsDelete: true,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// SearchIssuesByKeyword search issue ids by keywords and repo id
|
||||
func SearchIssuesByKeyword(repoID int64, keyword string) ([]int64, error) {
|
||||
var issueIDs []int64
|
||||
res, err := issueIndexer.Search(keyword, repoID, 1000, 0)
|
||||
res, err := holder.get().Search(keyword, repoID, 1000, 0)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
|
|
|||
|
|
@ -5,7 +5,6 @@
|
|||
package issues
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"testing"
|
||||
|
|
@ -17,11 +16,6 @@ import (
|
|||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func fatalTestError(fmtStr string, args ...interface{}) {
|
||||
fmt.Fprintf(os.Stderr, fmtStr, args...)
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
func TestMain(m *testing.M) {
|
||||
models.MainTest(m, filepath.Join("..", "..", ".."))
|
||||
}
|
||||
|
|
@ -32,9 +26,7 @@ func TestBleveSearchIssues(t *testing.T) {
|
|||
os.RemoveAll(setting.Indexer.IssueQueueDir)
|
||||
os.RemoveAll(setting.Indexer.IssuePath)
|
||||
setting.Indexer.IssueType = "bleve"
|
||||
if err := InitIssueIndexer(true); err != nil {
|
||||
fatalTestError("Error InitIssueIndexer: %v\n", err)
|
||||
}
|
||||
InitIssueIndexer(true)
|
||||
|
||||
time.Sleep(5 * time.Second)
|
||||
|
||||
|
|
@ -59,9 +51,7 @@ func TestDBSearchIssues(t *testing.T) {
|
|||
assert.NoError(t, models.PrepareTestDatabase())
|
||||
|
||||
setting.Indexer.IssueType = "db"
|
||||
if err := InitIssueIndexer(true); err != nil {
|
||||
fatalTestError("Error InitIssueIndexer: %v\n", err)
|
||||
}
|
||||
InitIssueIndexer(true)
|
||||
|
||||
ids, err := SearchIssuesByKeyword(1, "issue2")
|
||||
assert.NoError(t, err)
|
||||
|
|
|
|||
|
|
@ -6,6 +6,7 @@ package indexer
|
|||
|
||||
import (
|
||||
"strings"
|
||||
"sync"
|
||||
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
"code.gitea.io/gitea/modules/setting"
|
||||
|
|
@ -25,8 +26,36 @@ const (
|
|||
repoIndexerLatestVersion = 4
|
||||
)
|
||||
|
||||
type bleveIndexerHolder struct {
|
||||
index bleve.Index
|
||||
mutex sync.RWMutex
|
||||
cond *sync.Cond
|
||||
}
|
||||
|
||||
func newBleveIndexerHolder() *bleveIndexerHolder {
|
||||
b := &bleveIndexerHolder{}
|
||||
b.cond = sync.NewCond(b.mutex.RLocker())
|
||||
return b
|
||||
}
|
||||
|
||||
func (r *bleveIndexerHolder) set(index bleve.Index) {
|
||||
r.mutex.Lock()
|
||||
defer r.mutex.Unlock()
|
||||
r.index = index
|
||||
r.cond.Broadcast()
|
||||
}
|
||||
|
||||
func (r *bleveIndexerHolder) get() bleve.Index {
|
||||
r.mutex.RLock()
|
||||
defer r.mutex.RUnlock()
|
||||
if r.index == nil {
|
||||
r.cond.Wait()
|
||||
}
|
||||
return r.index
|
||||
}
|
||||
|
||||
// repoIndexer (thread-safe) index for repository contents
|
||||
var repoIndexer bleve.Index
|
||||
var indexerHolder = newBleveIndexerHolder()
|
||||
|
||||
// RepoIndexerOp type of operation to perform on repo indexer
|
||||
type RepoIndexerOp int
|
||||
|
|
@ -73,12 +102,12 @@ func (update RepoIndexerUpdate) AddToFlushingBatch(batch rupture.FlushingBatch)
|
|||
|
||||
// InitRepoIndexer initialize repo indexer
|
||||
func InitRepoIndexer(populateIndexer func() error) {
|
||||
var err error
|
||||
repoIndexer, err = openIndexer(setting.Indexer.RepoPath, repoIndexerLatestVersion)
|
||||
indexer, err := openIndexer(setting.Indexer.RepoPath, repoIndexerLatestVersion)
|
||||
if err != nil {
|
||||
log.Fatal("InitRepoIndexer: %v", err)
|
||||
}
|
||||
if repoIndexer != nil {
|
||||
if indexer != nil {
|
||||
indexerHolder.set(indexer)
|
||||
return
|
||||
}
|
||||
|
||||
|
|
@ -92,7 +121,6 @@ func InitRepoIndexer(populateIndexer func() error) {
|
|||
|
||||
// createRepoIndexer create a repo indexer if one does not already exist
|
||||
func createRepoIndexer(path string, latestVersion int) error {
|
||||
var err error
|
||||
docMapping := bleve.NewDocumentMapping()
|
||||
numericFieldMapping := bleve.NewNumericFieldMapping()
|
||||
numericFieldMapping.IncludeInAll = false
|
||||
|
|
@ -103,9 +131,9 @@ func createRepoIndexer(path string, latestVersion int) error {
|
|||
docMapping.AddFieldMappingsAt("Content", textFieldMapping)
|
||||
|
||||
mapping := bleve.NewIndexMapping()
|
||||
if err = addUnicodeNormalizeTokenFilter(mapping); err != nil {
|
||||
if err := addUnicodeNormalizeTokenFilter(mapping); err != nil {
|
||||
return err
|
||||
} else if err = mapping.AddCustomAnalyzer(repoIndexerAnalyzer, map[string]interface{}{
|
||||
} else if err := mapping.AddCustomAnalyzer(repoIndexerAnalyzer, map[string]interface{}{
|
||||
"type": custom.Name,
|
||||
"char_filters": []string{},
|
||||
"tokenizer": unicode.Name,
|
||||
|
|
@ -117,10 +145,12 @@ func createRepoIndexer(path string, latestVersion int) error {
|
|||
mapping.AddDocumentMapping(repoIndexerDocType, docMapping)
|
||||
mapping.AddDocumentMapping("_all", bleve.NewDocumentDisabledMapping())
|
||||
|
||||
repoIndexer, err = bleve.New(path, mapping)
|
||||
indexer, err := bleve.New(path, mapping)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
indexerHolder.set(indexer)
|
||||
|
||||
return rupture.WriteIndexMetadata(path, &rupture.IndexMetadata{
|
||||
Version: latestVersion,
|
||||
})
|
||||
|
|
@ -140,14 +170,14 @@ func filenameOfIndexerID(indexerID string) string {
|
|||
|
||||
// RepoIndexerBatch batch to add updates to
|
||||
func RepoIndexerBatch() rupture.FlushingBatch {
|
||||
return rupture.NewFlushingBatch(repoIndexer, maxBatchSize)
|
||||
return rupture.NewFlushingBatch(indexerHolder.get(), maxBatchSize)
|
||||
}
|
||||
|
||||
// DeleteRepoFromIndexer delete all of a repo's files from indexer
|
||||
func DeleteRepoFromIndexer(repoID int64) error {
|
||||
query := numericEqualityQuery(repoID, "RepoID")
|
||||
searchRequest := bleve.NewSearchRequestOptions(query, 2147483647, 0, false)
|
||||
result, err := repoIndexer.Search(searchRequest)
|
||||
result, err := indexerHolder.get().Search(searchRequest)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
|
@ -196,7 +226,7 @@ func SearchRepoByKeyword(repoIDs []int64, keyword string, page, pageSize int) (i
|
|||
searchRequest.Fields = []string{"Content", "RepoID"}
|
||||
searchRequest.IncludeLocations = true
|
||||
|
||||
result, err := repoIndexer.Search(searchRequest)
|
||||
result, err := indexerHolder.get().Search(searchRequest)
|
||||
if err != nil {
|
||||
return 0, nil, err
|
||||
}
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@ import (
|
|||
"path"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
|
||||
|
|
@ -34,6 +35,7 @@ var (
|
|||
IssueQueueDir string
|
||||
IssueQueueConnStr string
|
||||
IssueQueueBatchNumber int
|
||||
StartupTimeout time.Duration
|
||||
IncludePatterns []glob.Glob
|
||||
ExcludePatterns []glob.Glob
|
||||
}{
|
||||
|
|
@ -67,6 +69,7 @@ func newIndexerService() {
|
|||
Indexer.IssueQueueDir = sec.Key("ISSUE_INDEXER_QUEUE_DIR").MustString(path.Join(AppDataPath, "indexers/issues.queue"))
|
||||
Indexer.IssueQueueConnStr = sec.Key("ISSUE_INDEXER_QUEUE_CONN_STR").MustString(path.Join(AppDataPath, ""))
|
||||
Indexer.IssueQueueBatchNumber = sec.Key("ISSUE_INDEXER_QUEUE_BATCH_NUMBER").MustInt(20)
|
||||
Indexer.StartupTimeout = sec.Key("STARTUP_TIMEOUT").MustDuration(30 * time.Second)
|
||||
}
|
||||
|
||||
// IndexerGlobFromString parses a comma separated list of patterns and returns a glob.Glob slice suited for repo indexing
|
||||
|
|
|
|||
|
|
@ -6,6 +6,7 @@ package setting
|
|||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
golog "log"
|
||||
"os"
|
||||
"path"
|
||||
|
|
@ -17,6 +18,8 @@ import (
|
|||
ini "gopkg.in/ini.v1"
|
||||
)
|
||||
|
||||
var filenameSuffix = ""
|
||||
|
||||
type defaultLogOptions struct {
|
||||
levelName string // LogLevel
|
||||
flags string
|
||||
|
|
@ -112,7 +115,7 @@ func generateLogConfig(sec *ini.Section, name string, defaults defaultLogOptions
|
|||
panic(err.Error())
|
||||
}
|
||||
|
||||
logConfig["filename"] = logPath
|
||||
logConfig["filename"] = logPath + filenameSuffix
|
||||
logConfig["rotate"] = sec.Key("LOG_ROTATE").MustBool(true)
|
||||
logConfig["maxsize"] = 1 << uint(sec.Key("MAX_SIZE_SHIFT").MustInt(28))
|
||||
logConfig["daily"] = sec.Key("DAILY_ROTATE").MustBool(true)
|
||||
|
|
@ -277,6 +280,12 @@ func newLogService() {
|
|||
golog.SetOutput(log.NewLoggerAsWriter("INFO", log.GetLogger(log.DEFAULT)))
|
||||
}
|
||||
|
||||
// RestartLogsWithPIDSuffix restarts the logs with a PID suffix on files
|
||||
func RestartLogsWithPIDSuffix() {
|
||||
filenameSuffix = fmt.Sprintf(".%d", os.Getpid())
|
||||
NewLogServices(false)
|
||||
}
|
||||
|
||||
// NewLogServices creates all the log services
|
||||
func NewLogServices(disableConsole bool) {
|
||||
newLogService()
|
||||
|
|
|
|||
|
|
@ -97,6 +97,8 @@ var (
|
|||
LetsEncryptTOS bool
|
||||
LetsEncryptDirectory string
|
||||
LetsEncryptEmail string
|
||||
GracefulRestartable bool
|
||||
GracefulHammerTime time.Duration
|
||||
|
||||
SSH = struct {
|
||||
Disabled bool `ini:"DISABLE_SSH"`
|
||||
|
|
@ -563,6 +565,8 @@ func NewContext() {
|
|||
Domain = sec.Key("DOMAIN").MustString("localhost")
|
||||
HTTPAddr = sec.Key("HTTP_ADDR").MustString("0.0.0.0")
|
||||
HTTPPort = sec.Key("HTTP_PORT").MustString("3000")
|
||||
GracefulRestartable = sec.Key("ALLOW_GRACEFUL_RESTARTS").MustBool(true)
|
||||
GracefulHammerTime = sec.Key("GRACEFUL_HAMMER_TIME").MustDuration(60 * time.Second)
|
||||
|
||||
defaultAppURL := string(Protocol) + "://" + Domain
|
||||
if (Protocol == HTTP && HTTPPort != "80") || (Protocol == HTTPS && HTTPPort != "443") {
|
||||
|
|
|
|||
|
|
@ -183,12 +183,7 @@ func Listen(host string, port int, ciphers []string, keyExchanges []string, macs
|
|||
log.Error("Failed to set Host Key. %s", err)
|
||||
}
|
||||
|
||||
go func() {
|
||||
err := srv.ListenAndServe()
|
||||
if err != nil {
|
||||
log.Error("Failed to serve with builtin SSH server. %s", err)
|
||||
}
|
||||
}()
|
||||
go listen(&srv)
|
||||
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,30 @@
|
|||
// +build !windows
|
||||
|
||||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package ssh
|
||||
|
||||
import (
|
||||
"code.gitea.io/gitea/modules/graceful"
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
|
||||
"github.com/gliderlabs/ssh"
|
||||
)
|
||||
|
||||
func listen(server *ssh.Server) {
|
||||
gracefulServer := graceful.NewServer("tcp", server.Addr)
|
||||
|
||||
err := gracefulServer.ListenAndServe(server.Serve)
|
||||
if err != nil {
|
||||
log.Critical("Failed to start SSH server: %v", err)
|
||||
}
|
||||
log.Info("SSH Listener: %s Closed", server.Addr)
|
||||
|
||||
}
|
||||
|
||||
// Unused informs our cleanup routine that we will not be using a ssh port
|
||||
func Unused() {
|
||||
graceful.InformCleanup()
|
||||
}
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
// +build windows
|
||||
|
||||
// Copyright 2019 The Gitea Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package ssh
|
||||
|
||||
import (
|
||||
"code.gitea.io/gitea/modules/log"
|
||||
"github.com/gliderlabs/ssh"
|
||||
)
|
||||
|
||||
func listen(server *ssh.Server) {
|
||||
err := server.ListenAndServe()
|
||||
if err != nil {
|
||||
log.Critical("Failed to serve with builtin SSH server. %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Unused does nothing on windows
|
||||
func Unused() {
|
||||
// Do nothing
|
||||
}
|
||||
|
|
@ -96,9 +96,7 @@ func GlobalInit() {
|
|||
|
||||
// Booting long running goroutines.
|
||||
cron.NewContext()
|
||||
if err := issue_indexer.InitIssueIndexer(false); err != nil {
|
||||
log.Fatal("Failed to initialize issue indexer: %v", err)
|
||||
}
|
||||
issue_indexer.InitIssueIndexer(false)
|
||||
models.InitRepoIndexer()
|
||||
mirror_service.InitSyncMirrors()
|
||||
models.InitDeliverHooks()
|
||||
|
|
@ -112,8 +110,15 @@ func GlobalInit() {
|
|||
}
|
||||
checkRunMode()
|
||||
|
||||
if setting.InstallLock && setting.SSH.StartBuiltinServer {
|
||||
ssh.Listen(setting.SSH.ListenHost, setting.SSH.ListenPort, setting.SSH.ServerCiphers, setting.SSH.ServerKeyExchanges, setting.SSH.ServerMACs)
|
||||
log.Info("SSH server started on %s:%d. Cipher list (%v), key exchange algorithms (%v), MACs (%v)", setting.SSH.ListenHost, setting.SSH.ListenPort, setting.SSH.ServerCiphers, setting.SSH.ServerKeyExchanges, setting.SSH.ServerMACs)
|
||||
// Now because Install will re-run GlobalInit once it has set InstallLock
|
||||
// we can't tell if the ssh port will remain unused until that's done.
|
||||
// However, see FIXME comment in install.go
|
||||
if setting.InstallLock {
|
||||
if setting.SSH.StartBuiltinServer {
|
||||
ssh.Listen(setting.SSH.ListenHost, setting.SSH.ListenPort, setting.SSH.ServerCiphers, setting.SSH.ServerKeyExchanges, setting.SSH.ServerMACs)
|
||||
log.Info("SSH server started on %s:%d. Cipher list (%v), key exchange algorithms (%v), MACs (%v)", setting.SSH.ListenHost, setting.SSH.ListenPort, setting.SSH.ServerCiphers, setting.SSH.ServerKeyExchanges, setting.SSH.ServerMACs)
|
||||
} else {
|
||||
ssh.Unused()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -386,6 +386,12 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
|
|||
}
|
||||
|
||||
log.Info("First-time run install finished!")
|
||||
// FIXME: This isn't really enough to completely take account of new configuration
|
||||
// We should really be restarting:
|
||||
// - On windows this is probably just a simple restart
|
||||
// - On linux we can't just use graceful.RestartProcess() everything that was passed in on LISTEN_FDS
|
||||
// (active or not) needs to be passed out and everything new passed out too.
|
||||
// This means we need to prevent the cleanup goroutine from running prior to the second GlobalInit
|
||||
ctx.Flash.Success(ctx.Tr("install.install_success"))
|
||||
ctx.Redirect(form.AppURL + "user/login")
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,21 +0,0 @@
|
|||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2014 Ben Johnson
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
|
|
@ -1,104 +0,0 @@
|
|||
clock [](https://drone.io/github.com/benbjohnson/clock/latest) [](https://coveralls.io/r/benbjohnson/clock?branch=master) [](https://godoc.org/github.com/benbjohnson/clock) 
|
||||
=====
|
||||
|
||||
Clock is a small library for mocking time in Go. It provides an interface
|
||||
around the standard library's [`time`][time] package so that the application
|
||||
can use the realtime clock while tests can use the mock clock.
|
||||
|
||||
[time]: http://golang.org/pkg/time/
|
||||
|
||||
|
||||
## Usage
|
||||
|
||||
### Realtime Clock
|
||||
|
||||
Your application can maintain a `Clock` variable that will allow realtime and
|
||||
mock clocks to be interchangable. For example, if you had an `Application` type:
|
||||
|
||||
```go
|
||||
import "github.com/benbjohnson/clock"
|
||||
|
||||
type Application struct {
|
||||
Clock clock.Clock
|
||||
}
|
||||
```
|
||||
|
||||
You could initialize it to use the realtime clock like this:
|
||||
|
||||
```go
|
||||
var app Application
|
||||
app.Clock = clock.New()
|
||||
...
|
||||
```
|
||||
|
||||
Then all timers and time-related functionality should be performed from the
|
||||
`Clock` variable.
|
||||
|
||||
|
||||
### Mocking time
|
||||
|
||||
In your tests, you will want to use a `Mock` clock:
|
||||
|
||||
```go
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/benbjohnson/clock"
|
||||
)
|
||||
|
||||
func TestApplication_DoSomething(t *testing.T) {
|
||||
mock := clock.NewMock()
|
||||
app := Application{Clock: mock}
|
||||
...
|
||||
}
|
||||
```
|
||||
|
||||
Now that you've initialized your application to use the mock clock, you can
|
||||
adjust the time programmatically. The mock clock always starts from the Unix
|
||||
epoch (midnight, Jan 1, 1970 UTC).
|
||||
|
||||
|
||||
### Controlling time
|
||||
|
||||
The mock clock provides the same functions that the standard library's `time`
|
||||
package provides. For example, to find the current time, you use the `Now()`
|
||||
function:
|
||||
|
||||
```go
|
||||
mock := clock.NewMock()
|
||||
|
||||
// Find the current time.
|
||||
mock.Now().UTC() // 1970-01-01 00:00:00 +0000 UTC
|
||||
|
||||
// Move the clock forward.
|
||||
mock.Add(2 * time.Hour)
|
||||
|
||||
// Check the time again. It's 2 hours later!
|
||||
mock.Now().UTC() // 1970-01-01 02:00:00 +0000 UTC
|
||||
```
|
||||
|
||||
Timers and Tickers are also controlled by this same mock clock. They will only
|
||||
execute when the clock is moved forward:
|
||||
|
||||
```
|
||||
mock := clock.NewMock()
|
||||
count := 0
|
||||
|
||||
// Kick off a timer to increment every 1 mock second.
|
||||
go func() {
|
||||
ticker := clock.Ticker(1 * time.Second)
|
||||
for {
|
||||
<-ticker.C
|
||||
count++
|
||||
}
|
||||
}()
|
||||
runtime.Gosched()
|
||||
|
||||
// Move the clock forward 10 second.
|
||||
mock.Add(10 * time.Second)
|
||||
|
||||
// This prints 10.
|
||||
fmt.Println(count)
|
||||
```
|
||||
|
||||
|
||||
|
|
@ -1,363 +0,0 @@
|
|||
package clock
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
"sort"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
// Clock represents an interface to the functions in the standard library time
|
||||
// package. Two implementations are available in the clock package. The first
|
||||
// is a real-time clock which simply wraps the time package's functions. The
|
||||
// second is a mock clock which will only make forward progress when
|
||||
// programmatically adjusted.
|
||||
type Clock interface {
|
||||
After(d time.Duration) <-chan time.Time
|
||||
AfterFunc(d time.Duration, f func()) *Timer
|
||||
Now() time.Time
|
||||
Sleep(d time.Duration)
|
||||
Tick(d time.Duration) <-chan time.Time
|
||||
Ticker(d time.Duration) *Ticker
|
||||
Timer(d time.Duration) *Timer
|
||||
}
|
||||
|
||||
// New returns an instance of a real-time clock.
|
||||
func New() Clock {
|
||||
return &clock{}
|
||||
}
|
||||
|
||||
// clock implements a real-time clock by simply wrapping the time package functions.
|
||||
type clock struct{}
|
||||
|
||||
func (c *clock) After(d time.Duration) <-chan time.Time { return time.After(d) }
|
||||
|
||||
func (c *clock) AfterFunc(d time.Duration, f func()) *Timer {
|
||||
return &Timer{timer: time.AfterFunc(d, f)}
|
||||
}
|
||||
|
||||
func (c *clock) Now() time.Time { return time.Now() }
|
||||
|
||||
func (c *clock) Sleep(d time.Duration) { time.Sleep(d) }
|
||||
|
||||
func (c *clock) Tick(d time.Duration) <-chan time.Time { return time.Tick(d) }
|
||||
|
||||
func (c *clock) Ticker(d time.Duration) *Ticker {
|
||||
t := time.NewTicker(d)
|
||||
return &Ticker{C: t.C, ticker: t}
|
||||
}
|
||||
|
||||
func (c *clock) Timer(d time.Duration) *Timer {
|
||||
t := time.NewTimer(d)
|
||||
return &Timer{C: t.C, timer: t}
|
||||
}
|
||||
|
||||
// Mock represents a mock clock that only moves forward programmically.
|
||||
// It can be preferable to a real-time clock when testing time-based functionality.
|
||||
type Mock struct {
|
||||
mu sync.Mutex
|
||||
now time.Time // current time
|
||||
timers clockTimers // tickers & timers
|
||||
|
||||
calls Calls
|
||||
waiting []waiting
|
||||
callsMutex sync.Mutex
|
||||
}
|
||||
|
||||
// NewMock returns an instance of a mock clock.
|
||||
// The current time of the mock clock on initialization is the Unix epoch.
|
||||
func NewMock() *Mock {
|
||||
return &Mock{now: time.Unix(0, 0)}
|
||||
}
|
||||
|
||||
// Add moves the current time of the mock clock forward by the duration.
|
||||
// This should only be called from a single goroutine at a time.
|
||||
func (m *Mock) Add(d time.Duration) {
|
||||
// Calculate the final current time.
|
||||
t := m.now.Add(d)
|
||||
|
||||
// Continue to execute timers until there are no more before the new time.
|
||||
for {
|
||||
if !m.runNextTimer(t) {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
// Ensure that we end with the new time.
|
||||
m.mu.Lock()
|
||||
m.now = t
|
||||
m.mu.Unlock()
|
||||
|
||||
// Give a small buffer to make sure the other goroutines get handled.
|
||||
gosched()
|
||||
}
|
||||
|
||||
// runNextTimer executes the next timer in chronological order and moves the
|
||||
// current time to the timer's next tick time. The next time is not executed if
|
||||
// it's next time if after the max time. Returns true if a timer is executed.
|
||||
func (m *Mock) runNextTimer(max time.Time) bool {
|
||||
m.mu.Lock()
|
||||
|
||||
// Sort timers by time.
|
||||
sort.Sort(m.timers)
|
||||
|
||||
// If we have no more timers then exit.
|
||||
if len(m.timers) == 0 {
|
||||
m.mu.Unlock()
|
||||
return false
|
||||
}
|
||||
|
||||
// Retrieve next timer. Exit if next tick is after new time.
|
||||
t := m.timers[0]
|
||||
if t.Next().After(max) {
|
||||
m.mu.Unlock()
|
||||
return false
|
||||
}
|
||||
|
||||
// Move "now" forward and unlock clock.
|
||||
m.now = t.Next()
|
||||
m.mu.Unlock()
|
||||
|
||||
// Execute timer.
|
||||
t.Tick(m.now)
|
||||
return true
|
||||
}
|
||||
|
||||
// After waits for the duration to elapse and then sends the current time on the returned channel.
|
||||
func (m *Mock) After(d time.Duration) <-chan time.Time {
|
||||
defer m.inc(&m.calls.After)
|
||||
return m.Timer(d).C
|
||||
}
|
||||
|
||||
// AfterFunc waits for the duration to elapse and then executes a function.
|
||||
// A Timer is returned that can be stopped.
|
||||
func (m *Mock) AfterFunc(d time.Duration, f func()) *Timer {
|
||||
defer m.inc(&m.calls.AfterFunc)
|
||||
t := m.Timer(d)
|
||||
t.C = nil
|
||||
t.fn = f
|
||||
return t
|
||||
}
|
||||
|
||||
// Now returns the current wall time on the mock clock.
|
||||
func (m *Mock) Now() time.Time {
|
||||
defer m.inc(&m.calls.Now)
|
||||
m.mu.Lock()
|
||||
defer m.mu.Unlock()
|
||||
return m.now
|
||||
}
|
||||
|
||||
// Sleep pauses the goroutine for the given duration on the mock clock.
|
||||
// The clock must be moved forward in a separate goroutine.
|
||||
func (m *Mock) Sleep(d time.Duration) {
|
||||
defer m.inc(&m.calls.Sleep)
|
||||
<-m.After(d)
|
||||
}
|
||||
|
||||
// Tick is a convenience function for Ticker().
|
||||
// It will return a ticker channel that cannot be stopped.
|
||||
func (m *Mock) Tick(d time.Duration) <-chan time.Time {
|
||||
defer m.inc(&m.calls.Tick)
|
||||
return m.Ticker(d).C
|
||||
}
|
||||
|
||||
// Ticker creates a new instance of Ticker.
|
||||
func (m *Mock) Ticker(d time.Duration) *Ticker {
|
||||
defer m.inc(&m.calls.Ticker)
|
||||
m.mu.Lock()
|
||||
defer m.mu.Unlock()
|
||||
ch := make(chan time.Time)
|
||||
t := &Ticker{
|
||||
C: ch,
|
||||
c: ch,
|
||||
mock: m,
|
||||
d: d,
|
||||
next: m.now.Add(d),
|
||||
}
|
||||
m.timers = append(m.timers, (*internalTicker)(t))
|
||||
return t
|
||||
}
|
||||
|
||||
// Timer creates a new instance of Timer.
|
||||
func (m *Mock) Timer(d time.Duration) *Timer {
|
||||
defer m.inc(&m.calls.Timer)
|
||||
m.mu.Lock()
|
||||
defer m.mu.Unlock()
|
||||
ch := make(chan time.Time)
|
||||
t := &Timer{
|
||||
C: ch,
|
||||
c: ch,
|
||||
mock: m,
|
||||
next: m.now.Add(d),
|
||||
}
|
||||
m.timers = append(m.timers, (*internalTimer)(t))
|
||||
return t
|
||||
}
|
||||
|
||||
func (m *Mock) removeClockTimer(t clockTimer) {
|
||||
m.mu.Lock()
|
||||
defer m.mu.Unlock()
|
||||
for i, timer := range m.timers {
|
||||
if timer == t {
|
||||
copy(m.timers[i:], m.timers[i+1:])
|
||||
m.timers[len(m.timers)-1] = nil
|
||||
m.timers = m.timers[:len(m.timers)-1]
|
||||
break
|
||||
}
|
||||
}
|
||||
sort.Sort(m.timers)
|
||||
}
|
||||
|
||||
func (m *Mock) inc(addr *uint32) {
|
||||
m.callsMutex.Lock()
|
||||
defer m.callsMutex.Unlock()
|
||||
*addr++
|
||||
var newWaiting []waiting
|
||||
for _, w := range m.waiting {
|
||||
if m.calls.atLeast(w.expected) {
|
||||
close(w.done)
|
||||
continue
|
||||
}
|
||||
newWaiting = append(newWaiting, w)
|
||||
}
|
||||
m.waiting = newWaiting
|
||||
}
|
||||
|
||||
// Wait waits for at least the relevant calls before returning. The expected
|
||||
// Calls are always over the lifetime of the Mock. Values in the Calls struct
|
||||
// are used as the minimum number of calls, this allows you to wait for only
|
||||
// the calls you care about.
|
||||
func (m *Mock) Wait(s Calls) {
|
||||
m.callsMutex.Lock()
|
||||
if m.calls.atLeast(s) {
|
||||
m.callsMutex.Unlock()
|
||||
return
|
||||
}
|
||||
done := make(chan struct{})
|
||||
m.waiting = append(m.waiting, waiting{expected: s, done: done})
|
||||
m.callsMutex.Unlock()
|
||||
<-done
|
||||
}
|
||||
|
||||
// clockTimer represents an object with an associated start time.
|
||||
type clockTimer interface {
|
||||
Next() time.Time
|
||||
Tick(time.Time)
|
||||
}
|
||||
|
||||
// clockTimers represents a list of sortable timers.
|
||||
type clockTimers []clockTimer
|
||||
|
||||
func (a clockTimers) Len() int { return len(a) }
|
||||
func (a clockTimers) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
|
||||
func (a clockTimers) Less(i, j int) bool { return a[i].Next().Before(a[j].Next()) }
|
||||
|
||||
// Timer represents a single event.
|
||||
// The current time will be sent on C, unless the timer was created by AfterFunc.
|
||||
type Timer struct {
|
||||
C <-chan time.Time
|
||||
c chan time.Time
|
||||
timer *time.Timer // realtime impl, if set
|
||||
next time.Time // next tick time
|
||||
mock *Mock // mock clock, if set
|
||||
fn func() // AfterFunc function, if set
|
||||
}
|
||||
|
||||
// Stop turns off the ticker.
|
||||
func (t *Timer) Stop() {
|
||||
if t.timer != nil {
|
||||
t.timer.Stop()
|
||||
} else {
|
||||
t.mock.removeClockTimer((*internalTimer)(t))
|
||||
}
|
||||
}
|
||||
|
||||
type internalTimer Timer
|
||||
|
||||
func (t *internalTimer) Next() time.Time { return t.next }
|
||||
func (t *internalTimer) Tick(now time.Time) {
|
||||
if t.fn != nil {
|
||||
t.fn()
|
||||
} else {
|
||||
t.c <- now
|
||||
}
|
||||
t.mock.removeClockTimer((*internalTimer)(t))
|
||||
gosched()
|
||||
}
|
||||
|
||||
// Ticker holds a channel that receives "ticks" at regular intervals.
|
||||
type Ticker struct {
|
||||
C <-chan time.Time
|
||||
c chan time.Time
|
||||
ticker *time.Ticker // realtime impl, if set
|
||||
next time.Time // next tick time
|
||||
mock *Mock // mock clock, if set
|
||||
d time.Duration // time between ticks
|
||||
}
|
||||
|
||||
// Stop turns off the ticker.
|
||||
func (t *Ticker) Stop() {
|
||||
if t.ticker != nil {
|
||||
t.ticker.Stop()
|
||||
} else {
|
||||
t.mock.removeClockTimer((*internalTicker)(t))
|
||||
}
|
||||
}
|
||||
|
||||
type internalTicker Ticker
|
||||
|
||||
func (t *internalTicker) Next() time.Time { return t.next }
|
||||
func (t *internalTicker) Tick(now time.Time) {
|
||||
select {
|
||||
case t.c <- now:
|
||||
case <-time.After(1 * time.Millisecond):
|
||||
}
|
||||
t.next = now.Add(t.d)
|
||||
gosched()
|
||||
}
|
||||
|
||||
// Sleep momentarily so that other goroutines can process.
|
||||
func gosched() { runtime.Gosched() }
|
||||
|
||||
// Calls keeps track of the count of calls for each of the methods on the Clock
|
||||
// interface.
|
||||
type Calls struct {
|
||||
After uint32
|
||||
AfterFunc uint32
|
||||
Now uint32
|
||||
Sleep uint32
|
||||
Tick uint32
|
||||
Ticker uint32
|
||||
Timer uint32
|
||||
}
|
||||
|
||||
// atLeast returns true if at least the number of calls in o have been made.
|
||||
func (c Calls) atLeast(o Calls) bool {
|
||||
if c.After < o.After {
|
||||
return false
|
||||
}
|
||||
if c.AfterFunc < o.AfterFunc {
|
||||
return false
|
||||
}
|
||||
if c.Now < o.Now {
|
||||
return false
|
||||
}
|
||||
if c.Sleep < o.Sleep {
|
||||
return false
|
||||
}
|
||||
if c.Tick < o.Tick {
|
||||
return false
|
||||
}
|
||||
if c.Ticker < o.Ticker {
|
||||
return false
|
||||
}
|
||||
if c.Timer < o.Timer {
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
type waiting struct {
|
||||
expected Calls
|
||||
done chan struct{}
|
||||
}
|
||||
|
|
@ -1,186 +0,0 @@
|
|||
// Package gracehttp provides easy to use graceful restart
|
||||
// functionality for HTTP server.
|
||||
package gracehttp
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/tls"
|
||||
"flag"
|
||||
"fmt"
|
||||
"log"
|
||||
"net"
|
||||
"net/http"
|
||||
"os"
|
||||
"os/signal"
|
||||
"sync"
|
||||
"syscall"
|
||||
|
||||
"github.com/facebookgo/grace/gracenet"
|
||||
"github.com/facebookgo/httpdown"
|
||||
)
|
||||
|
||||
var (
|
||||
verbose = flag.Bool("gracehttp.log", true, "Enable logging.")
|
||||
didInherit = os.Getenv("LISTEN_FDS") != ""
|
||||
ppid = os.Getppid()
|
||||
)
|
||||
|
||||
// An app contains one or more servers and associated configuration.
|
||||
type app struct {
|
||||
servers []*http.Server
|
||||
http *httpdown.HTTP
|
||||
net *gracenet.Net
|
||||
listeners []net.Listener
|
||||
sds []httpdown.Server
|
||||
errors chan error
|
||||
}
|
||||
|
||||
func newApp(servers []*http.Server) *app {
|
||||
return &app{
|
||||
servers: servers,
|
||||
http: &httpdown.HTTP{},
|
||||
net: &gracenet.Net{},
|
||||
listeners: make([]net.Listener, 0, len(servers)),
|
||||
sds: make([]httpdown.Server, 0, len(servers)),
|
||||
|
||||
// 2x num servers for possible Close or Stop errors + 1 for possible
|
||||
// StartProcess error.
|
||||
errors: make(chan error, 1+(len(servers)*2)),
|
||||
}
|
||||
}
|
||||
|
||||
func (a *app) listen() error {
|
||||
for _, s := range a.servers {
|
||||
// TODO: default addresses
|
||||
l, err := a.net.Listen("tcp", s.Addr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if s.TLSConfig != nil {
|
||||
l = tls.NewListener(l, s.TLSConfig)
|
||||
}
|
||||
a.listeners = append(a.listeners, l)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (a *app) serve() {
|
||||
for i, s := range a.servers {
|
||||
a.sds = append(a.sds, a.http.Serve(s, a.listeners[i]))
|
||||
}
|
||||
}
|
||||
|
||||
func (a *app) wait() {
|
||||
var wg sync.WaitGroup
|
||||
wg.Add(len(a.sds) * 2) // Wait & Stop
|
||||
go a.signalHandler(&wg)
|
||||
for _, s := range a.sds {
|
||||
go func(s httpdown.Server) {
|
||||
defer wg.Done()
|
||||
if err := s.Wait(); err != nil {
|
||||
a.errors <- err
|
||||
}
|
||||
}(s)
|
||||
}
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
func (a *app) term(wg *sync.WaitGroup) {
|
||||
for _, s := range a.sds {
|
||||
go func(s httpdown.Server) {
|
||||
defer wg.Done()
|
||||
if err := s.Stop(); err != nil {
|
||||
a.errors <- err
|
||||
}
|
||||
}(s)
|
||||
}
|
||||
}
|
||||
|
||||
func (a *app) signalHandler(wg *sync.WaitGroup) {
|
||||
ch := make(chan os.Signal, 10)
|
||||
signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM, syscall.SIGUSR2)
|
||||
for {
|
||||
sig := <-ch
|
||||
switch sig {
|
||||
case syscall.SIGINT, syscall.SIGTERM:
|
||||
// this ensures a subsequent INT/TERM will trigger standard go behaviour of
|
||||
// terminating.
|
||||
signal.Stop(ch)
|
||||
a.term(wg)
|
||||
return
|
||||
case syscall.SIGUSR2:
|
||||
// we only return here if there's an error, otherwise the new process
|
||||
// will send us a TERM when it's ready to trigger the actual shutdown.
|
||||
if _, err := a.net.StartProcess(); err != nil {
|
||||
a.errors <- err
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Serve will serve the given http.Servers and will monitor for signals
|
||||
// allowing for graceful termination (SIGTERM) or restart (SIGUSR2).
|
||||
func Serve(servers ...*http.Server) error {
|
||||
a := newApp(servers)
|
||||
|
||||
// Acquire Listeners
|
||||
if err := a.listen(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Some useful logging.
|
||||
if *verbose {
|
||||
if didInherit {
|
||||
if ppid == 1 {
|
||||
log.Printf("Listening on init activated %s", pprintAddr(a.listeners))
|
||||
} else {
|
||||
const msg = "Graceful handoff of %s with new pid %d and old pid %d"
|
||||
log.Printf(msg, pprintAddr(a.listeners), os.Getpid(), ppid)
|
||||
}
|
||||
} else {
|
||||
const msg = "Serving %s with pid %d"
|
||||
log.Printf(msg, pprintAddr(a.listeners), os.Getpid())
|
||||
}
|
||||
}
|
||||
|
||||
// Start serving.
|
||||
a.serve()
|
||||
|
||||
// Close the parent if we inherited and it wasn't init that started us.
|
||||
if didInherit && ppid != 1 {
|
||||
if err := syscall.Kill(ppid, syscall.SIGTERM); err != nil {
|
||||
return fmt.Errorf("failed to close parent: %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
waitdone := make(chan struct{})
|
||||
go func() {
|
||||
defer close(waitdone)
|
||||
a.wait()
|
||||
}()
|
||||
|
||||
select {
|
||||
case err := <-a.errors:
|
||||
if err == nil {
|
||||
panic("unexpected nil error")
|
||||
}
|
||||
return err
|
||||
case <-waitdone:
|
||||
if *verbose {
|
||||
log.Printf("Exiting pid %d.", os.Getpid())
|
||||
}
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// Used for pretty printing addresses.
|
||||
func pprintAddr(listeners []net.Listener) []byte {
|
||||
var out bytes.Buffer
|
||||
for i, l := range listeners {
|
||||
if i != 0 {
|
||||
fmt.Fprint(&out, ", ")
|
||||
}
|
||||
fmt.Fprint(&out, l.Addr())
|
||||
}
|
||||
return out.Bytes()
|
||||
}
|
||||
|
|
@ -1,252 +0,0 @@
|
|||
// Package gracenet provides a family of Listen functions that either open a
|
||||
// fresh connection or provide an inherited connection from when the process
|
||||
// was started. The behave like their counterparts in the net package, but
|
||||
// transparently provide support for graceful restarts without dropping
|
||||
// connections. This is provided in a systemd socket activation compatible form
|
||||
// to allow using socket activation.
|
||||
//
|
||||
// BUG: Doesn't handle closing of listeners.
|
||||
package gracenet
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net"
|
||||
"os"
|
||||
"os/exec"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
)
|
||||
|
||||
const (
|
||||
// Used to indicate a graceful restart in the new process.
|
||||
envCountKey = "LISTEN_FDS"
|
||||
envCountKeyPrefix = envCountKey + "="
|
||||
)
|
||||
|
||||
// In order to keep the working directory the same as when we started we record
|
||||
// it at startup.
|
||||
var originalWD, _ = os.Getwd()
|
||||
|
||||
// Net provides the family of Listen functions and maintains the associated
|
||||
// state. Typically you will have only once instance of Net per application.
|
||||
type Net struct {
|
||||
inherited []net.Listener
|
||||
active []net.Listener
|
||||
mutex sync.Mutex
|
||||
inheritOnce sync.Once
|
||||
|
||||
// used in tests to override the default behavior of starting from fd 3.
|
||||
fdStart int
|
||||
}
|
||||
|
||||
func (n *Net) inherit() error {
|
||||
var retErr error
|
||||
n.inheritOnce.Do(func() {
|
||||
n.mutex.Lock()
|
||||
defer n.mutex.Unlock()
|
||||
countStr := os.Getenv(envCountKey)
|
||||
if countStr == "" {
|
||||
return
|
||||
}
|
||||
count, err := strconv.Atoi(countStr)
|
||||
if err != nil {
|
||||
retErr = fmt.Errorf("found invalid count value: %s=%s", envCountKey, countStr)
|
||||
return
|
||||
}
|
||||
|
||||
// In tests this may be overridden.
|
||||
fdStart := n.fdStart
|
||||
if fdStart == 0 {
|
||||
// In normal operations if we are inheriting, the listeners will begin at
|
||||
// fd 3.
|
||||
fdStart = 3
|
||||
}
|
||||
|
||||
for i := fdStart; i < fdStart+count; i++ {
|
||||
file := os.NewFile(uintptr(i), "listener")
|
||||
l, err := net.FileListener(file)
|
||||
if err != nil {
|
||||
file.Close()
|
||||
retErr = fmt.Errorf("error inheriting socket fd %d: %s", i, err)
|
||||
return
|
||||
}
|
||||
if err := file.Close(); err != nil {
|
||||
retErr = fmt.Errorf("error closing inherited socket fd %d: %s", i, err)
|
||||
return
|
||||
}
|
||||
n.inherited = append(n.inherited, l)
|
||||
}
|
||||
})
|
||||
return retErr
|
||||
}
|
||||
|
||||
// Listen announces on the local network address laddr. The network net must be
|
||||
// a stream-oriented network: "tcp", "tcp4", "tcp6", "unix" or "unixpacket". It
|
||||
// returns an inherited net.Listener for the matching network and address, or
|
||||
// creates a new one using net.Listen.
|
||||
func (n *Net) Listen(nett, laddr string) (net.Listener, error) {
|
||||
switch nett {
|
||||
default:
|
||||
return nil, net.UnknownNetworkError(nett)
|
||||
case "tcp", "tcp4", "tcp6":
|
||||
addr, err := net.ResolveTCPAddr(nett, laddr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return n.ListenTCP(nett, addr)
|
||||
case "unix", "unixpacket", "invalid_unix_net_for_test":
|
||||
addr, err := net.ResolveUnixAddr(nett, laddr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return n.ListenUnix(nett, addr)
|
||||
}
|
||||
}
|
||||
|
||||
// ListenTCP announces on the local network address laddr. The network net must
|
||||
// be: "tcp", "tcp4" or "tcp6". It returns an inherited net.Listener for the
|
||||
// matching network and address, or creates a new one using net.ListenTCP.
|
||||
func (n *Net) ListenTCP(nett string, laddr *net.TCPAddr) (*net.TCPListener, error) {
|
||||
if err := n.inherit(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
n.mutex.Lock()
|
||||
defer n.mutex.Unlock()
|
||||
|
||||
// look for an inherited listener
|
||||
for i, l := range n.inherited {
|
||||
if l == nil { // we nil used inherited listeners
|
||||
continue
|
||||
}
|
||||
if isSameAddr(l.Addr(), laddr) {
|
||||
n.inherited[i] = nil
|
||||
n.active = append(n.active, l)
|
||||
return l.(*net.TCPListener), nil
|
||||
}
|
||||
}
|
||||
|
||||
// make a fresh listener
|
||||
l, err := net.ListenTCP(nett, laddr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
n.active = append(n.active, l)
|
||||
return l, nil
|
||||
}
|
||||
|
||||
// ListenUnix announces on the local network address laddr. The network net
|
||||
// must be a: "unix" or "unixpacket". It returns an inherited net.Listener for
|
||||
// the matching network and address, or creates a new one using net.ListenUnix.
|
||||
func (n *Net) ListenUnix(nett string, laddr *net.UnixAddr) (*net.UnixListener, error) {
|
||||
if err := n.inherit(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
n.mutex.Lock()
|
||||
defer n.mutex.Unlock()
|
||||
|
||||
// look for an inherited listener
|
||||
for i, l := range n.inherited {
|
||||
if l == nil { // we nil used inherited listeners
|
||||
continue
|
||||
}
|
||||
if isSameAddr(l.Addr(), laddr) {
|
||||
n.inherited[i] = nil
|
||||
n.active = append(n.active, l)
|
||||
return l.(*net.UnixListener), nil
|
||||
}
|
||||
}
|
||||
|
||||
// make a fresh listener
|
||||
l, err := net.ListenUnix(nett, laddr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
n.active = append(n.active, l)
|
||||
return l, nil
|
||||
}
|
||||
|
||||
// activeListeners returns a snapshot copy of the active listeners.
|
||||
func (n *Net) activeListeners() ([]net.Listener, error) {
|
||||
n.mutex.Lock()
|
||||
defer n.mutex.Unlock()
|
||||
ls := make([]net.Listener, len(n.active))
|
||||
copy(ls, n.active)
|
||||
return ls, nil
|
||||
}
|
||||
|
||||
func isSameAddr(a1, a2 net.Addr) bool {
|
||||
if a1.Network() != a2.Network() {
|
||||
return false
|
||||
}
|
||||
a1s := a1.String()
|
||||
a2s := a2.String()
|
||||
if a1s == a2s {
|
||||
return true
|
||||
}
|
||||
|
||||
// This allows for ipv6 vs ipv4 local addresses to compare as equal. This
|
||||
// scenario is common when listening on localhost.
|
||||
const ipv6prefix = "[::]"
|
||||
a1s = strings.TrimPrefix(a1s, ipv6prefix)
|
||||
a2s = strings.TrimPrefix(a2s, ipv6prefix)
|
||||
const ipv4prefix = "0.0.0.0"
|
||||
a1s = strings.TrimPrefix(a1s, ipv4prefix)
|
||||
a2s = strings.TrimPrefix(a2s, ipv4prefix)
|
||||
return a1s == a2s
|
||||
}
|
||||
|
||||
// StartProcess starts a new process passing it the active listeners. It
|
||||
// doesn't fork, but starts a new process using the same environment and
|
||||
// arguments as when it was originally started. This allows for a newly
|
||||
// deployed binary to be started. It returns the pid of the newly started
|
||||
// process when successful.
|
||||
func (n *Net) StartProcess() (int, error) {
|
||||
listeners, err := n.activeListeners()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
// Extract the fds from the listeners.
|
||||
files := make([]*os.File, len(listeners))
|
||||
for i, l := range listeners {
|
||||
files[i], err = l.(filer).File()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
defer files[i].Close()
|
||||
}
|
||||
|
||||
// Use the original binary location. This works with symlinks such that if
|
||||
// the file it points to has been changed we will use the updated symlink.
|
||||
argv0, err := exec.LookPath(os.Args[0])
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
// Pass on the environment and replace the old count key with the new one.
|
||||
var env []string
|
||||
for _, v := range os.Environ() {
|
||||
if !strings.HasPrefix(v, envCountKeyPrefix) {
|
||||
env = append(env, v)
|
||||
}
|
||||
}
|
||||
env = append(env, fmt.Sprintf("%s%d", envCountKeyPrefix, len(listeners)))
|
||||
|
||||
allFiles := append([]*os.File{os.Stdin, os.Stdout, os.Stderr}, files...)
|
||||
process, err := os.StartProcess(argv0, os.Args, &os.ProcAttr{
|
||||
Dir: originalWD,
|
||||
Env: env,
|
||||
Files: allFiles,
|
||||
})
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return process.Pid, nil
|
||||
}
|
||||
|
||||
type filer interface {
|
||||
File() (*os.File, error)
|
||||
}
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
language: go
|
||||
|
||||
go:
|
||||
- 1.6
|
||||
|
||||
before_install:
|
||||
- go get -v golang.org/x/tools/cmd/vet
|
||||
- go get -v golang.org/x/tools/cmd/cover
|
||||
- go get -v github.com/golang/lint/golint
|
||||
|
||||
install:
|
||||
- go install -race -v std
|
||||
- go get -race -t -v ./...
|
||||
- go install -race -v ./...
|
||||
|
||||
script:
|
||||
- go vet ./...
|
||||
- $HOME/gopath/bin/golint .
|
||||
- go test -cpu=2 -race -v ./...
|
||||
- go test -cpu=2 -covermode=atomic -coverprofile=coverage.txt ./
|
||||
|
||||
after_success:
|
||||
- bash <(curl -s https://codecov.io/bash)
|
||||
|
|
@ -1,376 +0,0 @@
|
|||
// Package httpdown provides http.ConnState enabled graceful termination of
|
||||
// http.Server.
|
||||
package httpdown
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"fmt"
|
||||
"net"
|
||||
"net/http"
|
||||
"os"
|
||||
"os/signal"
|
||||
"sync"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"github.com/facebookgo/clock"
|
||||
"github.com/facebookgo/stats"
|
||||
)
|
||||
|
||||
const (
|
||||
defaultStopTimeout = time.Minute
|
||||
defaultKillTimeout = time.Minute
|
||||
)
|
||||
|
||||
// A Server allows encapsulates the process of accepting new connections and
|
||||
// serving them, and gracefully shutting down the listener without dropping
|
||||
// active connections.
|
||||
type Server interface {
|
||||
// Wait waits for the serving loop to finish. This will happen when Stop is
|
||||
// called, at which point it returns no error, or if there is an error in the
|
||||
// serving loop. You must call Wait after calling Serve or ListenAndServe.
|
||||
Wait() error
|
||||
|
||||
// Stop stops the listener. It will block until all connections have been
|
||||
// closed.
|
||||
Stop() error
|
||||
}
|
||||
|
||||
// HTTP defines the configuration for serving a http.Server. Multiple calls to
|
||||
// Serve or ListenAndServe can be made on the same HTTP instance. The default
|
||||
// timeouts of 1 minute each result in a maximum of 2 minutes before a Stop()
|
||||
// returns.
|
||||
type HTTP struct {
|
||||
// StopTimeout is the duration before we begin force closing connections.
|
||||
// Defaults to 1 minute.
|
||||
StopTimeout time.Duration
|
||||
|
||||
// KillTimeout is the duration before which we completely give up and abort
|
||||
// even though we still have connected clients. This is useful when a large
|
||||
// number of client connections exist and closing them can take a long time.
|
||||
// Note, this is in addition to the StopTimeout. Defaults to 1 minute.
|
||||
KillTimeout time.Duration
|
||||
|
||||
// Stats is optional. If provided, it will be used to record various metrics.
|
||||
Stats stats.Client
|
||||
|
||||
// Clock allows for testing timing related functionality. Do not specify this
|
||||
// in production code.
|
||||
Clock clock.Clock
|
||||
}
|
||||
|
||||
// Serve provides the low-level API which is useful if you're creating your own
|
||||
// net.Listener.
|
||||
func (h HTTP) Serve(s *http.Server, l net.Listener) Server {
|
||||
stopTimeout := h.StopTimeout
|
||||
if stopTimeout == 0 {
|
||||
stopTimeout = defaultStopTimeout
|
||||
}
|
||||
killTimeout := h.KillTimeout
|
||||
if killTimeout == 0 {
|
||||
killTimeout = defaultKillTimeout
|
||||
}
|
||||
klock := h.Clock
|
||||
if klock == nil {
|
||||
klock = clock.New()
|
||||
}
|
||||
|
||||
ss := &server{
|
||||
stopTimeout: stopTimeout,
|
||||
killTimeout: killTimeout,
|
||||
stats: h.Stats,
|
||||
clock: klock,
|
||||
oldConnState: s.ConnState,
|
||||
listener: l,
|
||||
server: s,
|
||||
serveDone: make(chan struct{}),
|
||||
serveErr: make(chan error, 1),
|
||||
new: make(chan net.Conn),
|
||||
active: make(chan net.Conn),
|
||||
idle: make(chan net.Conn),
|
||||
closed: make(chan net.Conn),
|
||||
stop: make(chan chan struct{}),
|
||||
kill: make(chan chan struct{}),
|
||||
}
|
||||
s.ConnState = ss.connState
|
||||
go ss.manage()
|
||||
go ss.serve()
|
||||
return ss
|
||||
}
|
||||
|
||||
// ListenAndServe returns a Server for the given http.Server. It is equivalent
|
||||
// to ListenAndServe from the standard library, but returns immediately.
|
||||
// Requests will be accepted in a background goroutine. If the http.Server has
|
||||
// a non-nil TLSConfig, a TLS enabled listener will be setup.
|
||||
func (h HTTP) ListenAndServe(s *http.Server) (Server, error) {
|
||||
addr := s.Addr
|
||||
if addr == "" {
|
||||
if s.TLSConfig == nil {
|
||||
addr = ":http"
|
||||
} else {
|
||||
addr = ":https"
|
||||
}
|
||||
}
|
||||
l, err := net.Listen("tcp", addr)
|
||||
if err != nil {
|
||||
stats.BumpSum(h.Stats, "listen.error", 1)
|
||||
return nil, err
|
||||
}
|
||||
if s.TLSConfig != nil {
|
||||
l = tls.NewListener(l, s.TLSConfig)
|
||||
}
|
||||
return h.Serve(s, l), nil
|
||||
}
|
||||
|
||||
// server manages the serving process and allows for gracefully stopping it.
|
||||
type server struct {
|
||||
stopTimeout time.Duration
|
||||
killTimeout time.Duration
|
||||
stats stats.Client
|
||||
clock clock.Clock
|
||||
|
||||
oldConnState func(net.Conn, http.ConnState)
|
||||
server *http.Server
|
||||
serveDone chan struct{}
|
||||
serveErr chan error
|
||||
listener net.Listener
|
||||
|
||||
new chan net.Conn
|
||||
active chan net.Conn
|
||||
idle chan net.Conn
|
||||
closed chan net.Conn
|
||||
stop chan chan struct{}
|
||||
kill chan chan struct{}
|
||||
|
||||
stopOnce sync.Once
|
||||
stopErr error
|
||||
}
|
||||
|
||||
func (s *server) connState(c net.Conn, cs http.ConnState) {
|
||||
if s.oldConnState != nil {
|
||||
s.oldConnState(c, cs)
|
||||
}
|
||||
|
||||
switch cs {
|
||||
case http.StateNew:
|
||||
s.new <- c
|
||||
case http.StateActive:
|
||||
s.active <- c
|
||||
case http.StateIdle:
|
||||
s.idle <- c
|
||||
case http.StateHijacked, http.StateClosed:
|
||||
s.closed <- c
|
||||
}
|
||||
}
|
||||
|
||||
func (s *server) manage() {
|
||||
defer func() {
|
||||
close(s.new)
|
||||
close(s.active)
|
||||
close(s.idle)
|
||||
close(s.closed)
|
||||
close(s.stop)
|
||||
close(s.kill)
|
||||
}()
|
||||
|
||||
var stopDone chan struct{}
|
||||
|
||||
conns := map[net.Conn]http.ConnState{}
|
||||
var countNew, countActive, countIdle float64
|
||||
|
||||
// decConn decrements the count associated with the current state of the
|
||||
// given connection.
|
||||
decConn := func(c net.Conn) {
|
||||
switch conns[c] {
|
||||
default:
|
||||
panic(fmt.Errorf("unknown existing connection: %s", c))
|
||||
case http.StateNew:
|
||||
countNew--
|
||||
case http.StateActive:
|
||||
countActive--
|
||||
case http.StateIdle:
|
||||
countIdle--
|
||||
}
|
||||
}
|
||||
|
||||
// setup a ticker to report various values every minute. if we don't have a
|
||||
// Stats implementation provided, we Stop it so it never ticks.
|
||||
statsTicker := s.clock.Ticker(time.Minute)
|
||||
if s.stats == nil {
|
||||
statsTicker.Stop()
|
||||
}
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-statsTicker.C:
|
||||
// we'll only get here when s.stats is not nil
|
||||
s.stats.BumpAvg("http-state.new", countNew)
|
||||
s.stats.BumpAvg("http-state.active", countActive)
|
||||
s.stats.BumpAvg("http-state.idle", countIdle)
|
||||
s.stats.BumpAvg("http-state.total", countNew+countActive+countIdle)
|
||||
case c := <-s.new:
|
||||
conns[c] = http.StateNew
|
||||
countNew++
|
||||
case c := <-s.active:
|
||||
decConn(c)
|
||||
countActive++
|
||||
|
||||
conns[c] = http.StateActive
|
||||
case c := <-s.idle:
|
||||
decConn(c)
|
||||
countIdle++
|
||||
|
||||
conns[c] = http.StateIdle
|
||||
|
||||
// if we're already stopping, close it
|
||||
if stopDone != nil {
|
||||
c.Close()
|
||||
}
|
||||
case c := <-s.closed:
|
||||
stats.BumpSum(s.stats, "conn.closed", 1)
|
||||
decConn(c)
|
||||
delete(conns, c)
|
||||
|
||||
// if we're waiting to stop and are all empty, we just closed the last
|
||||
// connection and we're done.
|
||||
if stopDone != nil && len(conns) == 0 {
|
||||
close(stopDone)
|
||||
return
|
||||
}
|
||||
case stopDone = <-s.stop:
|
||||
// if we're already all empty, we're already done
|
||||
if len(conns) == 0 {
|
||||
close(stopDone)
|
||||
return
|
||||
}
|
||||
|
||||
// close current idle connections right away
|
||||
for c, cs := range conns {
|
||||
if cs == http.StateIdle {
|
||||
c.Close()
|
||||
}
|
||||
}
|
||||
|
||||
// continue the loop and wait for all the ConnState updates which will
|
||||
// eventually close(stopDone) and return from this goroutine.
|
||||
|
||||
case killDone := <-s.kill:
|
||||
// force close all connections
|
||||
stats.BumpSum(s.stats, "kill.conn.count", float64(len(conns)))
|
||||
for c := range conns {
|
||||
c.Close()
|
||||
}
|
||||
|
||||
// don't block the kill.
|
||||
close(killDone)
|
||||
|
||||
// continue the loop and we wait for all the ConnState updates and will
|
||||
// return from this goroutine when we're all done. otherwise we'll try to
|
||||
// send those ConnState updates on closed channels.
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (s *server) serve() {
|
||||
stats.BumpSum(s.stats, "serve", 1)
|
||||
s.serveErr <- s.server.Serve(s.listener)
|
||||
close(s.serveDone)
|
||||
close(s.serveErr)
|
||||
}
|
||||
|
||||
func (s *server) Wait() error {
|
||||
if err := <-s.serveErr; !isUseOfClosedError(err) {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *server) Stop() error {
|
||||
s.stopOnce.Do(func() {
|
||||
defer stats.BumpTime(s.stats, "stop.time").End()
|
||||
stats.BumpSum(s.stats, "stop", 1)
|
||||
|
||||
// first disable keep-alive for new connections
|
||||
s.server.SetKeepAlivesEnabled(false)
|
||||
|
||||
// then close the listener so new connections can't connect come thru
|
||||
closeErr := s.listener.Close()
|
||||
<-s.serveDone
|
||||
|
||||
// then trigger the background goroutine to stop and wait for it
|
||||
stopDone := make(chan struct{})
|
||||
s.stop <- stopDone
|
||||
|
||||
// wait for stop
|
||||
select {
|
||||
case <-stopDone:
|
||||
case <-s.clock.After(s.stopTimeout):
|
||||
defer stats.BumpTime(s.stats, "kill.time").End()
|
||||
stats.BumpSum(s.stats, "kill", 1)
|
||||
|
||||
// stop timed out, wait for kill
|
||||
killDone := make(chan struct{})
|
||||
s.kill <- killDone
|
||||
select {
|
||||
case <-killDone:
|
||||
case <-s.clock.After(s.killTimeout):
|
||||
// kill timed out, give up
|
||||
stats.BumpSum(s.stats, "kill.timeout", 1)
|
||||
}
|
||||
}
|
||||
|
||||
if closeErr != nil && !isUseOfClosedError(closeErr) {
|
||||
stats.BumpSum(s.stats, "listener.close.error", 1)
|
||||
s.stopErr = closeErr
|
||||
}
|
||||
})
|
||||
return s.stopErr
|
||||
}
|
||||
|
||||
func isUseOfClosedError(err error) bool {
|
||||
if err == nil {
|
||||
return false
|
||||
}
|
||||
if opErr, ok := err.(*net.OpError); ok {
|
||||
err = opErr.Err
|
||||
}
|
||||
return err.Error() == "use of closed network connection"
|
||||
}
|
||||
|
||||
// ListenAndServe is a convenience function to serve and wait for a SIGTERM
|
||||
// or SIGINT before shutting down.
|
||||
func ListenAndServe(s *http.Server, hd *HTTP) error {
|
||||
if hd == nil {
|
||||
hd = &HTTP{}
|
||||
}
|
||||
hs, err := hd.ListenAndServe(s)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
waiterr := make(chan error, 1)
|
||||
go func() {
|
||||
defer close(waiterr)
|
||||
waiterr <- hs.Wait()
|
||||
}()
|
||||
|
||||
signals := make(chan os.Signal, 10)
|
||||
signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
|
||||
|
||||
select {
|
||||
case err := <-waiterr:
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
case <-signals:
|
||||
signal.Stop(signals)
|
||||
if err := hs.Stop(); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := <-waiterr; err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
|
@ -1,30 +0,0 @@
|
|||
BSD License
|
||||
|
||||
For httpdown software
|
||||
|
||||
Copyright (c) 2015, Facebook, Inc. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without modification,
|
||||
are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name Facebook nor the names of its contributors may be used to
|
||||
endorse or promote products derived from this software without specific
|
||||
prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
|
||||
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
||||
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
|
@ -1,33 +0,0 @@
|
|||
Additional Grant of Patent Rights Version 2
|
||||
|
||||
"Software" means the httpdown software distributed by Facebook, Inc.
|
||||
|
||||
Facebook, Inc. ("Facebook") hereby grants to each recipient of the Software
|
||||
("you") a perpetual, worldwide, royalty-free, non-exclusive, irrevocable
|
||||
(subject to the termination provision below) license under any Necessary
|
||||
Claims, to make, have made, use, sell, offer to sell, import, and otherwise
|
||||
transfer the Software. For avoidance of doubt, no license is granted under
|
||||
Facebook’s rights in any patent claims that are infringed by (i) modifications
|
||||
to the Software made by you or any third party or (ii) the Software in
|
||||
combination with any software or other technology.
|
||||
|
||||
The license granted hereunder will terminate, automatically and without notice,
|
||||
if you (or any of your subsidiaries, corporate affiliates or agents) initiate
|
||||
directly or indirectly, or take a direct financial interest in, any Patent
|
||||
Assertion: (i) against Facebook or any of its subsidiaries or corporate
|
||||
affiliates, (ii) against any party if such Patent Assertion arises in whole or
|
||||
in part from any software, technology, product or service of Facebook or any of
|
||||
its subsidiaries or corporate affiliates, or (iii) against any party relating
|
||||
to the Software. Notwithstanding the foregoing, if Facebook or any of its
|
||||
subsidiaries or corporate affiliates files a lawsuit alleging patent
|
||||
infringement against you in the first instance, and you respond by filing a
|
||||
patent infringement counterclaim in that lawsuit against that party that is
|
||||
unrelated to the Software, the license granted hereunder will not terminate
|
||||
under section (i) of this paragraph due to such counterclaim.
|
||||
|
||||
A "Necessary Claim" is a claim of a patent owned by Facebook that is
|
||||
necessarily infringed by the Software standing alone.
|
||||
|
||||
A "Patent Assertion" is any lawsuit or other action alleging direct, indirect,
|
||||
or contributory infringement or inducement to infringe any patent, including a
|
||||
cross-claim or counterclaim.
|
||||
|
|
@ -1,41 +0,0 @@
|
|||
httpdown [](https://travis-ci.org/facebookgo/httpdown)
|
||||
========
|
||||
|
||||
Documentation: https://godoc.org/github.com/facebookgo/httpdown
|
||||
|
||||
Package httpdown provides a library that makes it easy to build a HTTP server
|
||||
that can be shutdown gracefully (that is, without dropping any connections).
|
||||
|
||||
If you want graceful restart and not just graceful shutdown, look at the
|
||||
[grace](https://github.com/facebookgo/grace) package which uses this package
|
||||
underneath but also provides graceful restart.
|
||||
|
||||
Usage
|
||||
-----
|
||||
|
||||
Demo HTTP Server with graceful termination:
|
||||
https://github.com/facebookgo/httpdown/blob/master/httpdown_example/main.go
|
||||
|
||||
1. Install the demo application
|
||||
|
||||
go get github.com/facebookgo/httpdown/httpdown_example
|
||||
|
||||
1. Start it in the first terminal
|
||||
|
||||
httpdown_example
|
||||
|
||||
This will output something like:
|
||||
|
||||
2014/11/18 21:57:50 serving on http://127.0.0.1:8080/ with pid 17
|
||||
|
||||
1. In a second terminal start a slow HTTP request
|
||||
|
||||
curl 'http://localhost:8080/?duration=20s'
|
||||
|
||||
1. In a third terminal trigger a graceful shutdown (using the pid from your output):
|
||||
|
||||
kill -TERM 17
|
||||
|
||||
This will demonstrate that the slow request was served before the server was
|
||||
shutdown. You could also have used `Ctrl-C` instead of `kill` as the example
|
||||
application triggers graceful shutdown on TERM or INT signals.
|
||||
|
|
@ -1,20 +0,0 @@
|
|||
language: go
|
||||
|
||||
go:
|
||||
- 1.5
|
||||
|
||||
before_install:
|
||||
- go get -v golang.org/x/tools/cmd/vet
|
||||
- go get -v golang.org/x/tools/cmd/cover
|
||||
- go get -v github.com/golang/lint/golint
|
||||
|
||||
install:
|
||||
- go install -race -v std
|
||||
- go get -race -t -v ./...
|
||||
- go install -race -v ./...
|
||||
|
||||
script:
|
||||
- go vet ./...
|
||||
- $HOME/gopath/bin/golint .
|
||||
- go test -cpu=2 -race -v ./...
|
||||
- go test -cpu=2 -covermode=atomic ./...
|
||||
|
|
@ -1,35 +0,0 @@
|
|||
package stats
|
||||
|
||||
import "sort"
|
||||
|
||||
// Average returns the average value
|
||||
func Average(values []float64) float64 {
|
||||
if len(values) == 0 {
|
||||
return 0
|
||||
}
|
||||
|
||||
var val float64
|
||||
for _, point := range values {
|
||||
val += point
|
||||
}
|
||||
return val / float64(len(values))
|
||||
}
|
||||
|
||||
// Sum returns the sum of all the given values
|
||||
func Sum(values []float64) float64 {
|
||||
var val float64
|
||||
for _, point := range values {
|
||||
val += point
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// Percentiles returns a map containing the asked for percentiles
|
||||
func Percentiles(values []float64, percentiles map[string]float64) map[string]float64 {
|
||||
sort.Float64s(values)
|
||||
results := map[string]float64{}
|
||||
for label, p := range percentiles {
|
||||
results[label] = values[int(float64(len(values))*p)]
|
||||
}
|
||||
return results
|
||||
}
|
||||
|
|
@ -1,112 +0,0 @@
|
|||
package stats
|
||||
|
||||
import "fmt"
|
||||
|
||||
// Type is the type of aggregation of apply
|
||||
type Type int
|
||||
|
||||
const (
|
||||
AggregateAvg Type = iota
|
||||
AggregateSum
|
||||
AggregateHistogram
|
||||
)
|
||||
|
||||
var (
|
||||
// HistogramPercentiles is used to determine which percentiles to return for
|
||||
// SimpleCounter.Aggregate
|
||||
HistogramPercentiles = map[string]float64{
|
||||
"p50": 0.5,
|
||||
"p95": 0.95,
|
||||
"p99": 0.99,
|
||||
}
|
||||
|
||||
// MinSamplesForPercentiles is used by SimpleCounter.Aggregate to determine
|
||||
// what the minimum number of samples is required for percentile analysis
|
||||
MinSamplesForPercentiles = 10
|
||||
)
|
||||
|
||||
// Aggregates can be used to merge counters together. This is not goroutine safe
|
||||
type Aggregates map[string]Counter
|
||||
|
||||
// Add adds the counter for aggregation. This is not goroutine safe
|
||||
func (a Aggregates) Add(c Counter) error {
|
||||
key := c.FullKey()
|
||||
if counter, ok := a[key]; ok {
|
||||
if counter.GetType() != c.GetType() {
|
||||
return fmt.Errorf("stats: mismatched aggregation type for: %s", key)
|
||||
}
|
||||
counter.AddValues(c.GetValues()...)
|
||||
} else {
|
||||
a[key] = c
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Counter is the interface used by Aggregates to merge counters together
|
||||
type Counter interface {
|
||||
// FullKey is used to uniquely identify the counter
|
||||
FullKey() string
|
||||
|
||||
// AddValues adds values for aggregation
|
||||
AddValues(...float64)
|
||||
|
||||
// GetValues returns the values for aggregation
|
||||
GetValues() []float64
|
||||
|
||||
// GetType returns the type of aggregation to apply
|
||||
GetType() Type
|
||||
}
|
||||
|
||||
// SimpleCounter is a basic implementation of the Counter interface
|
||||
type SimpleCounter struct {
|
||||
Key string
|
||||
Values []float64
|
||||
Type Type
|
||||
}
|
||||
|
||||
// FullKey is part of the Counter interace
|
||||
func (s *SimpleCounter) FullKey() string {
|
||||
return s.Key
|
||||
}
|
||||
|
||||
// GetValues is part of the Counter interface
|
||||
func (s *SimpleCounter) GetValues() []float64 {
|
||||
return s.Values
|
||||
}
|
||||
|
||||
// AddValues is part of the Counter interface
|
||||
func (s *SimpleCounter) AddValues(vs ...float64) {
|
||||
s.Values = append(s.Values, vs...)
|
||||
}
|
||||
|
||||
// GetType is part of the Counter interface
|
||||
func (s *SimpleCounter) GetType() Type {
|
||||
return s.Type
|
||||
}
|
||||
|
||||
// Aggregate aggregates the provided values appropriately, returning a map
|
||||
// from key to value. If AggregateHistogram is specified, the map will contain
|
||||
// the relevant percentiles as specified by HistogramPercentiles
|
||||
func (s *SimpleCounter) Aggregate() map[string]float64 {
|
||||
switch s.Type {
|
||||
case AggregateAvg:
|
||||
return map[string]float64{
|
||||
s.Key: Average(s.Values),
|
||||
}
|
||||
case AggregateSum:
|
||||
return map[string]float64{
|
||||
s.Key: Sum(s.Values),
|
||||
}
|
||||
case AggregateHistogram:
|
||||
histogram := map[string]float64{
|
||||
s.Key: Average(s.Values),
|
||||
}
|
||||
if len(s.Values) > MinSamplesForPercentiles {
|
||||
for k, v := range Percentiles(s.Values, HistogramPercentiles) {
|
||||
histogram[fmt.Sprintf("%s.%s", s.Key, k)] = v
|
||||
}
|
||||
}
|
||||
return histogram
|
||||
}
|
||||
panic("stats: unsupported aggregation type")
|
||||
}
|
||||
|
|
@ -1,30 +0,0 @@
|
|||
BSD License
|
||||
|
||||
For stats software
|
||||
|
||||
Copyright (c) 2015, Facebook, Inc. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without modification,
|
||||
are permitted provided that the following conditions are met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the name Facebook nor the names of its contributors may be used to
|
||||
endorse or promote products derived from this software without specific
|
||||
prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
|
||||
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
||||
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
|
@ -1,33 +0,0 @@
|
|||
Additional Grant of Patent Rights Version 2
|
||||
|
||||
"Software" means the stats software distributed by Facebook, Inc.
|
||||
|
||||
Facebook, Inc. ("Facebook") hereby grants to each recipient of the Software
|
||||
("you") a perpetual, worldwide, royalty-free, non-exclusive, irrevocable
|
||||
(subject to the termination provision below) license under any Necessary
|
||||
Claims, to make, have made, use, sell, offer to sell, import, and otherwise
|
||||
transfer the Software. For avoidance of doubt, no license is granted under
|
||||
Facebook’s rights in any patent claims that are infringed by (i) modifications
|
||||
to the Software made by you or any third party or (ii) the Software in
|
||||
combination with any software or other technology.
|
||||
|
||||
The license granted hereunder will terminate, automatically and without notice,
|
||||
if you (or any of your subsidiaries, corporate affiliates or agents) initiate
|
||||
directly or indirectly, or take a direct financial interest in, any Patent
|
||||
Assertion: (i) against Facebook or any of its subsidiaries or corporate
|
||||
affiliates, (ii) against any party if such Patent Assertion arises in whole or
|
||||
in part from any software, technology, product or service of Facebook or any of
|
||||
its subsidiaries or corporate affiliates, or (iii) against any party relating
|
||||
to the Software. Notwithstanding the foregoing, if Facebook or any of its
|
||||
subsidiaries or corporate affiliates files a lawsuit alleging patent
|
||||
infringement against you in the first instance, and you respond by filing a
|
||||
patent infringement counterclaim in that lawsuit against that party that is
|
||||
unrelated to the Software, the license granted hereunder will not terminate
|
||||
under section (i) of this paragraph due to such counterclaim.
|
||||
|
||||
A "Necessary Claim" is a claim of a patent owned by Facebook that is
|
||||
necessarily infringed by the Software standing alone.
|
||||
|
||||
A "Patent Assertion" is any lawsuit or other action alleging direct, indirect,
|
||||
or contributory infringement or inducement to infringe any patent, including a
|
||||
cross-claim or counterclaim.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
stats [](https://travis-ci.org/facebookgo/stats)
|
||||
=====
|
||||
|
||||
Documentation: https://godoc.org/github.com/facebookgo/stats
|
||||
|
|
@ -1,166 +0,0 @@
|
|||
// Package stats defines a lightweight interface for collecting statistics. It
|
||||
// doesn't provide an implementation, just the shared interface.
|
||||
package stats
|
||||
|
||||
// Client provides methods to collection statistics.
|
||||
type Client interface {
|
||||
// BumpAvg bumps the average for the given key.
|
||||
BumpAvg(key string, val float64)
|
||||
|
||||
// BumpSum bumps the sum for the given key.
|
||||
BumpSum(key string, val float64)
|
||||
|
||||
// BumpHistogram bumps the histogram for the given key.
|
||||
BumpHistogram(key string, val float64)
|
||||
|
||||
// BumpTime is a special version of BumpHistogram which is specialized for
|
||||
// timers. Calling it starts the timer, and it returns a value on which End()
|
||||
// can be called to indicate finishing the timer. A convenient way of
|
||||
// recording the duration of a function is calling it like such at the top of
|
||||
// the function:
|
||||
//
|
||||
// defer s.BumpTime("my.function").End()
|
||||
BumpTime(key string) interface {
|
||||
End()
|
||||
}
|
||||
}
|
||||
|
||||
// PrefixClient adds multiple keys for the same value, with each prefix
|
||||
// added to the key and calls the underlying client.
|
||||
func PrefixClient(prefixes []string, client Client) Client {
|
||||
return &prefixClient{
|
||||
Prefixes: prefixes,
|
||||
Client: client,
|
||||
}
|
||||
}
|
||||
|
||||
type prefixClient struct {
|
||||
Prefixes []string
|
||||
Client Client
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpAvg(key string, val float64) {
|
||||
for _, prefix := range p.Prefixes {
|
||||
p.Client.BumpAvg(prefix+key, val)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpSum(key string, val float64) {
|
||||
for _, prefix := range p.Prefixes {
|
||||
p.Client.BumpSum(prefix+key, val)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpHistogram(key string, val float64) {
|
||||
for _, prefix := range p.Prefixes {
|
||||
p.Client.BumpHistogram(prefix+key, val)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *prefixClient) BumpTime(key string) interface {
|
||||
End()
|
||||
} {
|
||||
var m multiEnder
|
||||
for _, prefix := range p.Prefixes {
|
||||
m = append(m, p.Client.BumpTime(prefix+key))
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// multiEnder combines many enders together.
|
||||
type multiEnder []interface {
|
||||
End()
|
||||
}
|
||||
|
||||
func (m multiEnder) End() {
|
||||
for _, e := range m {
|
||||
e.End()
|
||||
}
|
||||
}
|
||||
|
||||
// HookClient is useful for testing. It provides optional hooks for each
|
||||
// expected method in the interface, which if provided will be called. If a
|
||||
// hook is not provided, it will be ignored.
|
||||
type HookClient struct {
|
||||
BumpAvgHook func(key string, val float64)
|
||||
BumpSumHook func(key string, val float64)
|
||||
BumpHistogramHook func(key string, val float64)
|
||||
BumpTimeHook func(key string) interface {
|
||||
End()
|
||||
}
|
||||
}
|
||||
|
||||
// BumpAvg will call BumpAvgHook if defined.
|
||||
func (c *HookClient) BumpAvg(key string, val float64) {
|
||||
if c.BumpAvgHook != nil {
|
||||
c.BumpAvgHook(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpSum will call BumpSumHook if defined.
|
||||
func (c *HookClient) BumpSum(key string, val float64) {
|
||||
if c.BumpSumHook != nil {
|
||||
c.BumpSumHook(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpHistogram will call BumpHistogramHook if defined.
|
||||
func (c *HookClient) BumpHistogram(key string, val float64) {
|
||||
if c.BumpHistogramHook != nil {
|
||||
c.BumpHistogramHook(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpTime will call BumpTimeHook if defined.
|
||||
func (c *HookClient) BumpTime(key string) interface {
|
||||
End()
|
||||
} {
|
||||
if c.BumpTimeHook != nil {
|
||||
return c.BumpTimeHook(key)
|
||||
}
|
||||
return NoOpEnd
|
||||
}
|
||||
|
||||
type noOpEnd struct{}
|
||||
|
||||
func (n noOpEnd) End() {}
|
||||
|
||||
// NoOpEnd provides a dummy value for use in tests as valid return value for
|
||||
// BumpTime().
|
||||
var NoOpEnd = noOpEnd{}
|
||||
|
||||
// BumpAvg calls BumpAvg on the Client if it isn't nil. This is useful when a
|
||||
// component has an optional stats.Client.
|
||||
func BumpAvg(c Client, key string, val float64) {
|
||||
if c != nil {
|
||||
c.BumpAvg(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpSum calls BumpSum on the Client if it isn't nil. This is useful when a
|
||||
// component has an optional stats.Client.
|
||||
func BumpSum(c Client, key string, val float64) {
|
||||
if c != nil {
|
||||
c.BumpSum(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpHistogram calls BumpHistogram on the Client if it isn't nil. This is
|
||||
// useful when a component has an optional stats.Client.
|
||||
func BumpHistogram(c Client, key string, val float64) {
|
||||
if c != nil {
|
||||
c.BumpHistogram(key, val)
|
||||
}
|
||||
}
|
||||
|
||||
// BumpTime calls BumpTime on the Client if it isn't nil. If the Client is nil
|
||||
// it still returns a valid return value which will be a no-op. This is useful
|
||||
// when a component has an optional stats.Client.
|
||||
func BumpTime(c Client, key string) interface {
|
||||
End()
|
||||
} {
|
||||
if c != nil {
|
||||
return c.BumpTime(key)
|
||||
}
|
||||
return NoOpEnd
|
||||
}
|
||||
|
|
@ -1,17 +0,0 @@
|
|||
package stats
|
||||
|
||||
import "time"
|
||||
|
||||
// Stopper calls Client.BumpSum and Client.BumpHistogram when End'ed
|
||||
type Stopper struct {
|
||||
Key string
|
||||
Start time.Time
|
||||
Client Client
|
||||
}
|
||||
|
||||
// End the Stopper
|
||||
func (s *Stopper) End() {
|
||||
since := time.Since(s.Start).Seconds() * 1000.0
|
||||
s.Client.BumpSum(s.Key+".total", since)
|
||||
s.Client.BumpHistogram(s.Key, since)
|
||||
}
|
||||
|
|
@ -132,15 +132,6 @@ github.com/emirpasic/gods/utils
|
|||
github.com/etcd-io/bbolt
|
||||
# github.com/ethantkoenig/rupture v0.0.0-20180203182544-0a76f03a811a
|
||||
github.com/ethantkoenig/rupture
|
||||
# github.com/facebookgo/clock v0.0.0-20150410010913-600d898af40a
|
||||
github.com/facebookgo/clock
|
||||
# github.com/facebookgo/grace v0.0.0-20160926231715-5729e484473f
|
||||
github.com/facebookgo/grace/gracehttp
|
||||
github.com/facebookgo/grace/gracenet
|
||||
# github.com/facebookgo/httpdown v0.0.0-20160323221027-a3b1354551a2
|
||||
github.com/facebookgo/httpdown
|
||||
# github.com/facebookgo/stats v0.0.0-20151006221625-1b76add642e4
|
||||
github.com/facebookgo/stats
|
||||
# github.com/fsnotify/fsnotify v1.4.7
|
||||
github.com/fsnotify/fsnotify
|
||||
# github.com/gliderlabs/ssh v0.2.2
|
||||
|
|
|
|||
Loading…
Reference in New Issue