dist_sink.h
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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include "base_sink.h"
#include <spdlog/details/log_msg.h>
#include <spdlog/details/null_mutex.h>
#include <spdlog/pattern_formatter.h>
#include <algorithm>
#include <memory>
#include <mutex>
#include <vector>
// Distribution sink (mux). Stores a vector of sinks which get called when log
// is called
namespace spdlog {
namespace sinks {
template<typename Mutex>
class dist_sink : public base_sink<Mutex>
{
public:
dist_sink() = default;
explicit dist_sink(std::vector<std::shared_ptr<sink>> sinks)
: sinks_(sinks)
{}
dist_sink(const dist_sink &) = delete;
dist_sink &operator=(const dist_sink &) = delete;
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());
}
void set_sinks(std::vector<std::shared_ptr<sink>> sinks)
{
std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
sinks_ = std::move(sinks);
}
std::vector<std::shared_ptr<sink>> &sinks()
{
return sinks_;
}
protected:
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();
}
}
void set_pattern_(const std::string &pattern) override
{
set_formatter_(details::make_unique<spdlog::pattern_formatter>(pattern));
}
void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter) override
{
base_sink<Mutex>::formatter_ = std::move(sink_formatter);
for (auto &sink : sinks_)
{
sink->set_formatter(base_sink<Mutex>::formatter_->clone());
}
}
std::vector<std::shared_ptr<sink>> sinks_;
};
using dist_sink_mt = dist_sink<std::mutex>;
using dist_sink_st = dist_sink<details::null_mutex>;
} // namespace sinks
} // namespace spdlog