70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
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// Copyright 2010 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/// \file utils/process/systembuf.hpp
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/// Provides the utils::process::systembuf class.
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#if !defined(UTILS_PROCESS_SYSTEMBUF_HPP)
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#define UTILS_PROCESS_SYSTEMBUF_HPP
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#include <cstddef>
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#include <memory>
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#include <streambuf>
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#include "utils/noncopyable.hpp"
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namespace utils {
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namespace process {
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/// A std::streambuf implementation for raw file descriptors.
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///
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/// This class grabs ownership of the file descriptor. I.e. when the class is
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/// destroyed, the file descriptor is closed unconditionally.
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class systembuf : public std::streambuf, noncopyable {
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struct impl;
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/// Pointer to the shared internal implementation.
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std::auto_ptr< impl > _pimpl;
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protected:
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int_type underflow(void);
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int_type overflow(int);
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int sync(void);
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public:
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explicit systembuf(const int, std::size_t = 8192);
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~systembuf(void);
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};
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} // namespace process
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} // namespace utils
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#endif // !defined(UTILS_PROCESS_SYSTEMBUF_HPP)
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