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76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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#pragma once
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#include "dist_sink.h"
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#include "spdlog/details/null_mutex.h"
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#include "spdlog/details/log_msg_buffer.h"
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#include "spdlog/details/circular_q.h"
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#include <mutex>
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#include <string>
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#include <chrono>
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// Store log messages in circular buffer
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// If it encounters a message with high enough level, it will send all previous message to it child sinks
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// Useful for storing debug data in case of error/warning happens
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namespace spdlog {
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namespace sinks {
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template<typename Mutex>
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class backtrace_sink : public dist_sink<Mutex>
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{
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public:
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explicit backtrace_sink(size_t n_messages = 16)
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: traceback_msgs_{n_messages}
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{}
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void dump_backtrace()
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{
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std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
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dump_backtrace_();
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}
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protected:
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details::circular_q<details::log_msg_buffer> traceback_msgs_;
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// save the messages in a circular queue
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void sink_it_(const details::log_msg &msg) override
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{
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traceback_msgs_.push_back(details::log_msg_buffer(msg));
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if (msg.level > level::debug)
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{
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dist_sink<Mutex>::sink_it_(msg);
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}
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}
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void dump_backtrace_()
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{
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if (traceback_msgs_.empty())
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{
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return;
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}
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const char *logger_name = "??????";
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dist_sink<Mutex>::sink_it_(
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details::log_msg{logger_name, level::info, "********************* Backtrace Start *********************"});
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do
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{
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details::log_msg_buffer popped;
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traceback_msgs_.pop_front(popped);
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dist_sink<Mutex>::sink_it_(popped);
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} while (!traceback_msgs_.empty());
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dist_sink<Mutex>::sink_it_(
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details::log_msg{logger_name, level::info, "********************* Backtrace End ***********************"});
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}
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};
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using backtrace_sink_mt = backtrace_sink<std::mutex>;
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using backtrace_sink_st = backtrace_sink<details::null_mutex>;
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} // namespace sinks
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} // namespace spdlog
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