Add BufferWithExtendableBuffer::extend()
Bug: 14425059 Change-Id: I13dd8412ba4d16a1325ac2210b3852d580e71ad3main
parent
6810e8df1e
commit
ff6ca09905
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@ -49,6 +49,10 @@ void BufferWithExtendableBuffer::readCodePointsAndAdvancePosition(const int maxC
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}
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}
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bool BufferWithExtendableBuffer::extend(const int size) {
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return checkAndPrepareWriting(getTailPosition(), size);
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}
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bool BufferWithExtendableBuffer::writeUint(const uint32_t data, const int size, const int pos) {
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int writingPos = pos;
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return writeUintAndAdvancePosition(data, size, &writingPos);
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@ -96,13 +100,13 @@ bool BufferWithExtendableBuffer::writeCodePointsAndAdvancePosition(const int *co
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return true;
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}
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bool BufferWithExtendableBuffer::extendBuffer() {
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const size_t sizeAfterExtending =
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mAdditionalBuffer.size() + EXTEND_ADDITIONAL_BUFFER_SIZE_STEP;
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bool BufferWithExtendableBuffer::extendBuffer(const size_t size) {
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const size_t extendSize = std::max(EXTEND_ADDITIONAL_BUFFER_SIZE_STEP, size);
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const size_t sizeAfterExtending = mAdditionalBuffer.size() + extendSize;
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if (sizeAfterExtending > mMaxAdditionalBufferSize) {
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return false;
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}
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mAdditionalBuffer.resize(mAdditionalBuffer.size() + EXTEND_ADDITIONAL_BUFFER_SIZE_STEP);
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mAdditionalBuffer.resize(sizeAfterExtending);
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return true;
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}
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@ -133,7 +137,7 @@ bool BufferWithExtendableBuffer::checkAndPrepareWriting(const int pos, const int
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}
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const size_t extendSize = totalRequiredSize -
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std::min(mAdditionalBuffer.size() + mOriginalBufferSize, totalRequiredSize);
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if (extendSize > 0 && !extendBuffer()) {
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if (extendSize > 0 && !extendBuffer(extendSize)) {
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// Failed to extend the buffer.
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return false;
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}
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@ -87,6 +87,8 @@ class BufferWithExtendableBuffer {
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* NEAR_BUFFER_LIMIT_THRESHOLD_PERCENTILE) / 100);
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}
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bool extend(const int size);
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/**
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* For writing.
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*
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@ -115,7 +117,7 @@ class BufferWithExtendableBuffer {
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const size_t mMaxAdditionalBufferSize;
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// Return if the buffer is successfully extended or not.
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bool extendBuffer();
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bool extendBuffer(const size_t size);
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// Returns if it is possible to write size-bytes from pos. When pos is at the tail position of
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// the additional buffer, try extending the buffer.
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