Add distributional sink

Setting up dist_sink to a logger will inject a layer between the logger and
(some of) it's sinks. Sinks can be added and removed to dist_sink dynamically.
This commit is contained in:
David Schury 2015-09-17 17:01:04 +02:00
parent f35520bf53
commit e12c50a8a5

View File

@ -0,0 +1,91 @@
/*************************************************************************/
/* spdlog - an extremely fast and easy to use c++11 logging library. */
/* Copyright (c) 2015 David Schury. */
/* Copyright (c) 2014 Gabi Melman. */
/* */
/* 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. */
/*************************************************************************/
#pragma once
#include <algorithm>
#include <memory>
#include <mutex>
#include <list>
#include "../details/log_msg.h"
#include "../details/null_mutex.h"
#include "./base_sink.h"
#include "./sink.h"
namespace spdlog
{
namespace sinks
{
template<class Mutex>
class dist_sink: public base_sink<Mutex>
{
public:
explicit dist_sink() :_sinks() {}
dist_sink(const dist_sink&) = delete;
dist_sink& operator=(const dist_sink&) = delete;
virtual ~dist_sink() = default;
protected:
void _sink_it(const details::log_msg& msg) override
{
for (auto iter = _sinks.begin(); iter != _sinks.end(); iter++)
(*iter)->log(msg);
}
std::vector<std::shared_ptr<sink>> _sinks;
public:
void flush() override
{
for (auto iter = _sinks.begin(); iter != _sinks.end(); iter++)
(*iter)->flush();
}
void add_sink(std::shared_ptr<sink> sink)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
if (sink &&
_sinks.end() == std::find(_sinks.begin(), _sinks.end(), sink))
{
_sinks.push_back(sink);
}
}
void remove_sink(std::shared_ptr<sink> sink)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
auto pos = std::find(_sinks.begin(), _sinks.end(), sink);
if (pos != _sinks.end())
{
_sinks.erase(pos);
}
}
};
typedef dist_sink<std::mutex> dist_sink_mt;
typedef dist_sink<details::null_mutex> dist_sink_st;
}
}