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Merge "Add BufferWithExtendableBuffer::extend()" into lmp-dev

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This commit is contained in:
Keisuke Kuroyanagi 2014-07-24 22:08:08 +00:00 committed by Android (Google) Code Review
commit dfbe2a8ca8
2 changed files with 12 additions and 6 deletions
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14
native/jni/src/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.cpp
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@ -49,6 +49,10 @@ void BufferWithExtendableBuffer::readCodePointsAndAdvancePosition(const int maxC
}
}
bool BufferWithExtendableBuffer::extend(const int size) {
return checkAndPrepareWriting(getTailPosition(), size);
}
bool BufferWithExtendableBuffer::writeUint(const uint32_t data, const int size, const int pos) {
int writingPos = pos;
return writeUintAndAdvancePosition(data, size, &writingPos);
@ -96,13 +100,13 @@ bool BufferWithExtendableBuffer::writeCodePointsAndAdvancePosition(const int *co
return true;
}
bool BufferWithExtendableBuffer::extendBuffer() {
const size_t sizeAfterExtending =
mAdditionalBuffer.size() + EXTEND_ADDITIONAL_BUFFER_SIZE_STEP;
bool BufferWithExtendableBuffer::extendBuffer(const size_t size) {
const size_t extendSize = std::max(EXTEND_ADDITIONAL_BUFFER_SIZE_STEP, size);
const size_t sizeAfterExtending = mAdditionalBuffer.size() + extendSize;
if (sizeAfterExtending > mMaxAdditionalBufferSize) {
return false;
}
mAdditionalBuffer.resize(mAdditionalBuffer.size() + EXTEND_ADDITIONAL_BUFFER_SIZE_STEP);
mAdditionalBuffer.resize(sizeAfterExtending);
return true;
}
@ -133,7 +137,7 @@ bool BufferWithExtendableBuffer::checkAndPrepareWriting(const int pos, const int
}
const size_t extendSize = totalRequiredSize -
std::min(mAdditionalBuffer.size() + mOriginalBufferSize, totalRequiredSize);
if (extendSize > 0 && !extendBuffer()) {
if (extendSize > 0 && !extendBuffer(extendSize)) {
// Failed to extend the buffer.
return false;
}

4
native/jni/src/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h
View file

@ -87,6 +87,8 @@ class BufferWithExtendableBuffer {
* NEAR_BUFFER_LIMIT_THRESHOLD_PERCENTILE) / 100);
}
bool extend(const int size);
/**
* For writing.
*
@ -115,7 +117,7 @@ class BufferWithExtendableBuffer {
const size_t mMaxAdditionalBufferSize;
// Return if the buffer is successfully extended or not.
bool extendBuffer();
bool extendBuffer(const size_t size);
// Returns if it is possible to write size-bytes from pos. When pos is at the tail position of
// the additional buffer, try extending the buffer.