Merge "Fix children position reading for dynamic patricia trie."

main
Keisuke Kuroyanagi 2013-08-29 09:46:32 +00:00 committed by Android (Google) Code Review
commit b384cb28a1
3 changed files with 12 additions and 10 deletions

View File

@ -45,14 +45,10 @@ void DynamicPatriciaTrieNodeReader::fetchNodeInfoFromBufferAndProcessMovedNode(c
} else {
mProbability = NOT_A_PROBABILITY;
}
if (hasChildren()) {
mChildrenPos = DynamicPatriciaTrieReadingUtils::readChildrenPositionAndAdvancePosition(
dictBuf, mFlags, &pos);
if (usesAdditionalBuffer && mChildrenPos != NOT_A_DICT_POS) {
mChildrenPos += mOriginalDictSize;
}
} else {
mChildrenPos = NOT_A_DICT_POS;
mChildrenPos = DynamicPatriciaTrieReadingUtils::readChildrenPositionAndAdvancePosition(
dictBuf, mFlags, &pos);
if (usesAdditionalBuffer && mChildrenPos != NOT_A_DICT_POS) {
mChildrenPos += mOriginalDictSize;
}
if (usesAdditionalBuffer) {
pos += mOriginalDictSize;

View File

@ -71,7 +71,7 @@ class DynamicPatriciaTrieNodeReader {
}
AK_FORCE_INLINE bool hasChildren() const {
return PatriciaTrieReadingUtils::hasChildrenInFlags(mFlags);
return mChildrenPos != NOT_A_DICT_POS;
}
AK_FORCE_INLINE bool isTerminal() const {

View File

@ -32,7 +32,13 @@ const DptReadingUtils::NodeFlags DptReadingUtils::FLAG_IS_DELETED = 0x80;
const uint8_t *const buffer, const NodeFlags flags, int *const pos) {
if ((flags & MASK_MOVED) == FLAG_IS_NOT_MOVED) {
const int base = *pos;
return base + ByteArrayUtils::readSint24AndAdvancePosition(buffer, pos);
const int offset = ByteArrayUtils::readSint24AndAdvancePosition(buffer, pos);
if (offset == 0) {
// 0 offset means that the node does not have children.
return NOT_A_DICT_POS;
} else {
return base + offset;
}
} else {
return NOT_A_DICT_POS;
}