Criterion/include/criterion/internal/stream.hxx

141 lines
3.8 KiB
C++

/*
* The MIT License (MIT)
*
* Copyright © 2015-2016 Franklin "Snaipe" Mathieu <http://snai.pe/>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef CRITERION_INTERNAL_STREAM_HXX_
#define CRITERION_INTERNAL_STREAM_HXX_
#include <fstream>
#include <cstdio>
#include <memory>
#include "stdio_filebuf.hxx"
/* *INDENT-OFF* */
namespace criterion { namespace internal {
/* *INDENT-ON* */
template <typename CharT, typename Super>
class stream_mixin : public Super {
public:
stream_mixin(FILE *f)
: Super(),
fbuf(new stdio_sync_filebuf<CharT>(f)),
file(f)
{
std::ios::rdbuf(&*fbuf);
}
#if __cplusplus > 199711L
stream_mixin(const stream_mixin &other) = delete;
stream_mixin &operator=(const stream_mixin &other) = delete;
#endif
stream_mixin(stream_mixin &&other) :
fbuf(std::move(other.fbuf)),
file(std::move(other.file))
{}
stream_mixin &operator=(stream_mixin &&other)
{
fbuf = std::move(other.fbuf);
file = std::move(other.file);
}
void close(void)
{
Super::flush();
Super::close();
std::fclose(file);
}
private:
std::shared_ptr<stdio_sync_filebuf<CharT> > fbuf;
std::FILE *file;
};
template <typename CharT>
class basic_ofstream : public stream_mixin<CharT, std::basic_ofstream<CharT> > {
typedef stream_mixin<CharT, std::basic_ofstream<CharT> > super;
public:
basic_ofstream(FILE *f)
: super(f)
{}
basic_ofstream(basic_ofstream &&other)
: super(std::move(other))
{}
};
template <typename CharT>
class basic_ifstream : public stream_mixin<CharT, std::basic_ifstream<CharT> > {
typedef stream_mixin<CharT, std::basic_ifstream<CharT> > super;
public:
basic_ifstream(FILE *f)
: super(f)
{}
basic_ifstream(basic_ifstream &&other)
: super(std::move(other))
{}
};
template <typename CharT>
class basic_fstream : public stream_mixin<CharT, std::basic_fstream<CharT> > {
typedef stream_mixin<CharT, std::basic_fstream<CharT> > super;
public:
basic_fstream(FILE *f)
: super(f)
{}
basic_fstream(basic_fstream &&other)
: super(std::move(other))
{}
};
struct get_redirected_out_stream_ {
static inline basic_ofstream<char> &call(std::FILE *f)
{
static std::unique_ptr<basic_ofstream<char> > stream;
if (!stream)
stream.reset(new basic_ofstream<char>(f));
return *stream;
}
};
struct get_redirected_in_stream_ {
static inline basic_ifstream<char> &call(std::FILE *f)
{
static std::unique_ptr<basic_ifstream<char> > stream;
if (!stream)
stream.reset(new basic_ifstream<char>(f));
return *stream;
}
};
/* *INDENT-OFF* */
}}
/* *INDENT-ON* */
#endif /* !CRITERION_INTERNAL_STREAM_HXX_ */