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90 lines
2.6 KiB
C++
90 lines
2.6 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/common.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(spdlog::level::level_enum filter_level, size_t n_messages)
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: filter_level_{filter_level}
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, traceback_msgs_{n_messages}
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{}
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void set_filter_level(spdlog::level::level_enum filter_level)
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{
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std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
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filter_level_ = filter_level;
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}
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spdlog::level::level_enum get_filter_level()
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{
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std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
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return filter_level_;
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}
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void dump_backtrace(string_view_t logger_name)
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{
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std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
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dump_backtrace_(logger_name);
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}
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protected:
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spdlog::level::level_enum filter_level_;
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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 >= filter_level_)
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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_(string_view_t logger_name)
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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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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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