/usr/include/spdlog/sinks/dist_sink.h is in libspdlog-dev 1:0.16.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (c) 2015 David Schury, Gabi Melman
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
#include "../details/log_msg.h"
#include "../details/null_mutex.h"
#include "base_sink.h"
#include "sink.h"
#include <algorithm>
#include <mutex>
#include <memory>
#include <vector>
// Distribution sink (mux). Stores a vector of sinks which get called when log is called
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:
std::vector<std::shared_ptr<sink>> _sinks;
void _sink_it(const details::log_msg& msg) override
{
for (auto &sink : _sinks)
{
if( sink->should_log( msg.level))
{
sink->log(msg);
}
}
}
void _flush() override
{
for (auto &sink : _sinks)
sink->flush();
}
public:
void add_sink(std::shared_ptr<sink> sink)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
_sinks.push_back(sink);
}
void remove_sink(std::shared_ptr<sink> sink)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
_sinks.erase(std::remove(_sinks.begin(), _sinks.end(), sink), _sinks.end());
}
};
typedef dist_sink<std::mutex> dist_sink_mt;
typedef dist_sink<details::null_mutex> dist_sink_st;
}
}
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