bool ProbabilityDictContent::writeEntry(const ProbabilityEntry *const probabilityEntry,
const int entryPos) {
BufferWithExtendableBuffer *const bufferToWrite = getWritableBuffer();
int writingPos = entryPos;
if (!bufferToWrite->writeUintAndAdvancePosition(probabilityEntry->getFlags(),
Ver4DictConstants::FLAGS_IN_PROBABILITY_FILE_SIZE, &writingPos)) {
AKLOGE("Cannot write flags in probability dict content. pos: %d", writingPos);
return false;
}
if (!bufferToWrite->writeUintAndAdvancePosition(probabilityEntry->getProbability(),
Ver4DictConstants::PROBABILITY_SIZE, &writingPos)) {
AKLOGE("Cannot write probability in probability dict content. pos: %d", writingPos);
return false;
}
if (mHasHistoricalInfo) {
const HistoricalInfo *const historicalInfo = probabilityEntry->getHistoricalInfo();
if (!bufferToWrite->writeUintAndAdvancePosition(historicalInfo->getTimestamp(),
Ver4DictConstants::TIME_STAMP_FIELD_SIZE, &writingPos)) {
AKLOGE("Cannot write timestamp in probability dict content. pos: %d", writingPos);
return false;
}
if (!bufferToWrite->writeUintAndAdvancePosition(historicalInfo->getLevel(),
Ver4DictConstants::WORD_LEVEL_FIELD_SIZE, &writingPos)) {
AKLOGE("Cannot write level in probability dict content. pos: %d", writingPos);
return false;
}
if (!bufferToWrite->writeUintAndAdvancePosition(historicalInfo->getCount(),
Ver4DictConstants::WORD_COUNT_FIELD_SIZE, &writingPos)) {
AKLOGE("Cannot write count in probability dict content. pos: %d", writingPos);
return false;
}
}
return true;
}
bool TerminalPositionLookupTable::setTerminalPtNodePosition(
const int terminalId, const int terminalPtNodePos) {
if (terminalId < 0) {
return NOT_A_DICT_POS;
}
while (terminalId >= mSize) {
// Write new entry.
if (!getWritableBuffer()->writeUint(Ver4DictConstants::NOT_A_TERMINAL_ADDRESS,
Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE, getEntryPos(mSize))) {
return false;
}
mSize++;
}
const int terminalPos = (terminalPtNodePos != NOT_A_DICT_POS) ?
terminalPtNodePos : Ver4DictConstants::NOT_A_TERMINAL_ADDRESS;
return getWritableBuffer()->writeUint(terminalPos,
Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE, getEntryPos(terminalId));
}
bool TerminalPositionLookupTable::runGCTerminalIds(TerminalIdMap *const terminalIdMap) {
int removedEntryCount = 0;
int nextNewTerminalId = 0;
for (int i = 0; i < mSize; ++i) {
const int terminalPos = getBuffer()->readUint(
Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE, getEntryPos(i));
if (terminalPos == Ver4DictConstants::NOT_A_TERMINAL_ADDRESS) {
// This entry is a garbage.
removedEntryCount++;
} else {
// Give a new terminal id to the entry.
if (!getWritableBuffer()->writeUint(terminalPos,
Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE,
getEntryPos(nextNewTerminalId))) {
return false;
}
// Memorize the mapping to the old terminal id to the new terminal id.
terminalIdMap->insert(TerminalIdMap::value_type(i, nextNewTerminalId));
nextNewTerminalId++;
}
}
mSize = nextNewTerminalId;
return true;
}