forked from premiere/premiere-libtorrent
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
/*
|
|
|
|
Copyright (c) 2003, Arvid Norberg
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the distribution.
|
|
* Neither the name of the author nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
#ifndef TORRENT_DEBUG_HPP_INCLUDED
|
|
#define TORRENT_DEBUG_HPP_INCLUDED
|
|
|
|
#if defined TORRENT_VERBOSE_LOGGING || defined TORRENT_LOGGING || defined TORRENT_ERROR_LOGGING
|
|
|
|
#include <string>
|
|
#include "libtorrent/config.hpp"
|
|
#include "libtorrent/file.hpp"
|
|
#include "libtorrent/thread.hpp"
|
|
|
|
#if TORRENT_USE_IOSTREAM
|
|
#include <fstream>
|
|
#include <iostream>
|
|
#endif
|
|
|
|
namespace libtorrent
|
|
{
|
|
// DEBUG API
|
|
|
|
struct logger
|
|
{
|
|
#if TORRENT_USE_IOSTREAM
|
|
// all log streams share a single file descriptor
|
|
// and re-opens the file for each log line
|
|
// these members are defined in session_impl.cpp
|
|
static std::ofstream log_file;
|
|
static std::string open_filename;
|
|
static mutex file_mutex;
|
|
#endif
|
|
|
|
logger(std::string const& logpath, std::string const& filename
|
|
, int instance, bool append)
|
|
{
|
|
char log_name[512];
|
|
snprintf(log_name, sizeof(log_name), "libtorrent_logs%d", instance);
|
|
std::string dir(complete(combine_path(logpath, log_name)));
|
|
error_code ec;
|
|
if (!exists(dir)) create_directories(dir, ec);
|
|
m_filename = combine_path(dir, filename);
|
|
|
|
mutex::scoped_lock l(file_mutex);
|
|
open(!append);
|
|
log_file << "\n\n\n*** starting log ***\n";
|
|
}
|
|
|
|
#if TORRENT_USE_IOSTREAM
|
|
void open(bool truncate)
|
|
{
|
|
if (open_filename == m_filename) return;
|
|
log_file.close();
|
|
log_file.clear();
|
|
log_file.open(m_filename.c_str(), truncate ? std::ios_base::trunc : std::ios_base::app);
|
|
open_filename = m_filename;
|
|
if (!log_file.good())
|
|
fprintf(stderr, "Failed to open logfile %s: %s\n", m_filename.c_str(), strerror(errno));
|
|
}
|
|
#endif
|
|
|
|
template <class T>
|
|
logger& operator<<(T const& v)
|
|
{
|
|
#if TORRENT_USE_IOSTREAM
|
|
mutex::scoped_lock l(file_mutex);
|
|
open(false);
|
|
log_file << v;
|
|
#endif
|
|
return *this;
|
|
}
|
|
|
|
std::string m_filename;
|
|
};
|
|
|
|
}
|
|
|
|
#endif // TORRENT_VERBOSE_LOGGING || TORRENT_LOGGING || TORRENT_ERROR_LOGGING
|
|
#endif // TORRENT_DEBUG_HPP_INCLUDED
|
|
|