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Fix children position reading for dynamic patricia trie.

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Bug: 6669677
Change-Id: I68ad68361676f952bd25903c253c22617d3ce361
This commit is contained in:
Keisuke Kuroyanagi 2013-08-29 18:31:15 +09:00
parent fcc6ab08ae
commit 69ebca0643
3 changed files with 12 additions and 10 deletions
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4
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.cpp
View file

@ -45,15 +45,11 @@ 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;
}
if (usesAdditionalBuffer) {
pos += mOriginalDictSize;
}

2
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h
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 {

8
native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.cpp
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;
}