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Re-call getBuffer after writing in bigram/shortcut policy.

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Bug: 6669677
Change-Id: I35dc290aa9582e019681b8aae49db3f8d37c90d4
This commit is contained in:
Keisuke Kuroyanagi 2013-09-10 12:12:42 +09:00
parent e7ac900340
commit c987120cbc
4 changed files with 24 additions and 12 deletions
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12
native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp
View file

@ -20,12 +20,13 @@ namespace latinime {
bool DynamicBigramListPolicy::copyAllBigrams(int *const fromPos, int *const toPos) {
const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(*fromPos);
const uint8_t *const buffer = mBuffer->getBuffer(usesAdditionalBuffer);
if (usesAdditionalBuffer) {
*fromPos -= mBuffer->getOriginalBufferSize();
}
BigramListReadWriteUtils::BigramFlags flags;
do {
// The buffer address can be changed after calling buffer writing methods.
const uint8_t *const buffer = mBuffer->getBuffer(usesAdditionalBuffer);
flags = BigramListReadWriteUtils::getFlagsAndForwardPointer(buffer, fromPos);
int bigramPos = BigramListReadWriteUtils::getBigramAddressAndForwardPointer(
buffer, flags, fromPos);
@ -63,7 +64,6 @@ bool DynamicBigramListPolicy::copyAllBigrams(int *const fromPos, int *const toPo
bool DynamicBigramListPolicy::addBigramEntry(const int bigramPos, const int probability,
int *const pos) {
const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(*pos);
const uint8_t *const buffer = mBuffer->getBuffer(usesAdditionalBuffer);
if (usesAdditionalBuffer) {
*pos -= mBuffer->getOriginalBufferSize();
}
@ -73,6 +73,8 @@ bool DynamicBigramListPolicy::addBigramEntry(const int bigramPos, const int prob
if (usesAdditionalBuffer) {
entryPos += mBuffer->getOriginalBufferSize();
}
// The buffer address can be changed after calling buffer writing methods.
const uint8_t *const buffer = mBuffer->getBuffer(usesAdditionalBuffer);
flags = BigramListReadWriteUtils::getFlagsAndForwardPointer(buffer, pos);
BigramListReadWriteUtils::getBigramAddressAndForwardPointer(buffer, flags, pos);
if (BigramListReadWriteUtils::hasNext(flags)) {
@ -118,13 +120,14 @@ bool DynamicBigramListPolicy::addBigramEntry(const int bigramPos, const int prob
bool DynamicBigramListPolicy::removeBigram(const int bigramListPos, const int targetBigramPos) {
const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(bigramListPos);
const uint8_t *const buffer = mBuffer->getBuffer(usesAdditionalBuffer);
int pos = bigramListPos;
if (usesAdditionalBuffer) {
pos -= mBuffer->getOriginalBufferSize();
}
BigramListReadWriteUtils::BigramFlags flags;
do {
// The buffer address can be changed after calling buffer writing methods.
const uint8_t *const buffer = mBuffer->getBuffer(usesAdditionalBuffer);
flags = BigramListReadWriteUtils::getFlagsAndForwardPointer(buffer, &pos);
int bigramOffsetFieldPos = pos;
if (usesAdditionalBuffer) {
@ -139,8 +142,7 @@ bool DynamicBigramListPolicy::removeBigram(const int bigramListPos, const int ta
continue;
}
// Target entry is found. Write 0 into the bigram pos field to mark the bigram invalid.
const int bigramOffsetFieldSize =
BigramListReadWriteUtils::attributeAddressSize(flags);
const int bigramOffsetFieldSize = BigramListReadWriteUtils::attributeAddressSize(flags);
if (!mBuffer->writeUintAndAdvancePosition(0 /* data */, bigramOffsetFieldSize,
&bigramOffsetFieldPos)) {
return false;

4
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.cpp
View file

@ -176,7 +176,9 @@ bool DynamicPatriciaTrieWritingHelper::writeNodeToBuffer(const bool isBlackliste
// Copy shortcut list when the originalShortcutListPos is valid dictionary position.
if (originalShortcutListPos != NOT_A_DICT_POS) {
int fromPos = originalShortcutListPos;
mShortcutPolicy->copyAllShortcuts(&fromPos, writingPos);
if (!mShortcutPolicy->copyAllShortcutsAndReturnIfSucceededOrNot(&fromPos, writingPos)) {
return false;
}
}
// Copy bigram list when the originalBigramListPos is valid dictionary position.
if (originalBigramListPos != NOT_A_DICT_POS) {

19
native/jni/src/suggest/policyimpl/dictionary/shortcut/dynamic_shortcut_list_policy.h
View file

@ -83,8 +83,8 @@ class DynamicShortcutListPolicy : public DictionaryShortcutsStructurePolicy {
}
// Copy shortcuts from the shortcut list that starts at fromPos to toPos and advance these
// positions after the shortcut lists.
void copyAllShortcuts(int *const fromPos, int *const toPos) {
// positions after the shortcut lists. This returns whether the copy was succeeded or not.
bool copyAllShortcutsAndReturnIfSucceededOrNot(int *const fromPos, int *const toPos) {
const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(*fromPos);
const uint8_t *const buffer = mBuffer->getBuffer(usesAdditionalBuffer);
if (usesAdditionalBuffer) {
@ -93,16 +93,23 @@ class DynamicShortcutListPolicy : public DictionaryShortcutsStructurePolicy {
const int shortcutListSize = ShortcutListReadingUtils
::getShortcutListSizeAndForwardPointer(buffer, fromPos);
// Copy shortcut list size.
mBuffer->writeUintAndAdvancePosition(
if (!mBuffer->writeUintAndAdvancePosition(
shortcutListSize + ShortcutListReadingUtils::getShortcutListSizeFieldSize(),
ShortcutListReadingUtils::getShortcutListSizeFieldSize(), toPos);
ShortcutListReadingUtils::getShortcutListSizeFieldSize(), toPos)) {
return false;
}
// Copy shortcut list.
for (int i = 0; i < shortcutListSize; ++i) {
const uint8_t data = ByteArrayUtils::readUint8AndAdvancePosition(buffer, fromPos);
mBuffer->writeUintAndAdvancePosition(data, 1 /* size */, toPos);
const uint8_t data = ByteArrayUtils::readUint8AndAdvancePosition(
mBuffer->getBuffer(usesAdditionalBuffer), fromPos);
if (!mBuffer->writeUintAndAdvancePosition(data, 1 /* size */, toPos)) {
return false;
}
}
if (usesAdditionalBuffer) {
*fromPos += mBuffer->getOriginalBufferSize();
}
return true;
}
private:

1
native/jni/src/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h
View file

@ -47,6 +47,7 @@ class BufferWithExtendableBuffer {
return position >= mOriginalBufferSize;
}
// TODO: Resolve the issue that the address can be changed when the vector is resized.
// CAVEAT!: Be careful about array out of bound access with buffers
AK_FORCE_INLINE const uint8_t *getBuffer(const bool usesAdditionalBuffer) const {
if (usesAdditionalBuffer) {