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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "drainingbufferwriter.h"
#include <cassert>
namespace search {
DrainingBufferWriter::DrainingBufferWriter()
: BufferWriter(),
_buf(),
_bytesWritten(0),
_incompleteBuffers(0)
{
_buf.resize(BUFFER_SIZE);
setup(&_buf[0], _buf.size());
}
DrainingBufferWriter::~DrainingBufferWriter()
{
}
void
DrainingBufferWriter::flush() {
// measure overhead above this flush method
assert(_incompleteBuffers == 0); // all previous buffers must have been full
size_t nowLen = usedLen();
if (nowLen != _buf.size()) {
// buffer is not full, only allowed for last buffer
++_incompleteBuffers;
}
if (nowLen == 0) {
return; // empty buffer
}
_bytesWritten += nowLen;
rewind();
}
} // namespace search
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