/* static */ Ver4DictBuffers::Ver4DictBuffersPtr Ver4DictBuffers::openVer4DictBuffers(
const char *const dictPath, MmappedBuffer::MmappedBufferPtr &&headerBuffer,
const FormatUtils::FORMAT_VERSION formatVersion) {
if (!headerBuffer) {
ASSERT(false);
AKLOGE("The header buffer must be valid to open ver4 dict buffers.");
return Ver4DictBuffersPtr(nullptr);
}
// TODO: take only dictDirPath, and open both header and trie files in the constructor below
const bool isUpdatable = headerBuffer->isUpdatable();
MmappedBuffer::MmappedBufferPtr bodyBuffer = MmappedBuffer::openBuffer(dictPath,
Ver4DictConstants::BODY_FILE_EXTENSION, isUpdatable);
if (!bodyBuffer) {
return Ver4DictBuffersPtr(nullptr);
}
std::vector<ReadWriteByteArrayView> buffers;
const ReadWriteByteArrayView buffer = bodyBuffer->getReadWriteByteArrayView();
int position = 0;
while (position < static_cast<int>(buffer.size())) {
const int bufferSize = ByteArrayUtils::readUint32AndAdvancePosition(
buffer.data(), &position);
buffers.push_back(buffer.subView(position, bufferSize));
position += bufferSize;
if (bufferSize < 0 || position < 0 || position > static_cast<int>(buffer.size())) {
AKLOGE("The dict body file is corrupted.");
return Ver4DictBuffersPtr(nullptr);
}
}
if (buffers.size() != Ver4DictConstants::NUM_OF_CONTENT_BUFFERS_IN_BODY_FILE) {
AKLOGE("The dict body file is corrupted.");
return Ver4DictBuffersPtr(nullptr);
}
return Ver4DictBuffersPtr(new Ver4DictBuffers(std::move(headerBuffer), std::move(bodyBuffer),
formatVersion, buffers));
}
/* static */ Ver4DictBuffers::Ver4DictBuffersPtr Ver4DictBuffers::openVer4DictBuffers(
const char *const dictPath, MmappedBuffer::MmappedBufferPtr headerBuffer,
const FormatUtils::FORMAT_VERSION formatVersion) {
if (!headerBuffer) {
ASSERT(false);
AKLOGE("The header buffer must be valid to open ver4 dict buffers.");
return Ver4DictBuffersPtr(nullptr);
}
// TODO: take only dictDirPath, and open both header and trie files in the constructor below
const bool isUpdatable = headerBuffer->isUpdatable();
return Ver4DictBuffersPtr(new Ver4DictBuffers(dictPath, std::move(headerBuffer), isUpdatable,
formatVersion));
}
