// Copyright 2015 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CHROMIUMOS_WIDE_PROFILING_BUFFER_WRITER_H_
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#define CHROMIUMOS_WIDE_PROFILING_BUFFER_WRITER_H_
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#include "data_writer.h"
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namespace quipper {
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// Writes data to a fixed-size memory buffer.
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class BufferWriter : public DataWriter {
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public:
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// The destination buffer is indicated by |buffer| and is |size| bytes long.
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BufferWriter(void* buffer, size_t size)
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: buffer_(reinterpret_cast<char*>(buffer)), offset_(0) {
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size_ = size;
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}
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void SeekSet(size_t offset) override { offset_ = offset; }
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size_t Tell() const override { return offset_; }
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bool WriteData(const void* src, const size_t size) override;
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bool WriteString(const string& str, const size_t size) override;
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private:
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bool CanWriteSize(size_t data_size) override;
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// Pointer to the data buffer. Does not own the buffer.
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char* buffer_;
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// Current write offset, in bytes from start of buffer.
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size_t offset_;
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};
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} // namespace quipper
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#endif // CHROMIUMOS_WIDE_PROFILING_BUFFER_WRITER_H_
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