118 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			118 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
//
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// Copyright(c) 2015 Gabi Melman.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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//
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#pragma once
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#include "spdlog/details/fmt_helper.h"
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#include "spdlog/details/null_mutex.h"
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#include "spdlog/details/os.h"
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#include "spdlog/sinks/base_sink.h"
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#include <android/log.h>
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#include <chrono>
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#include <mutex>
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#include <string>
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#include <thread>
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#if !defined(SPDLOG_ANDROID_RETRIES)
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#define SPDLOG_ANDROID_RETRIES 2
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#endif
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namespace spdlog {
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namespace sinks {
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/*
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 * Android sink (logging using __android_log_write)
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 */
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template<typename Mutex>
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class android_sink final : public base_sink<Mutex>
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{
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public:
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    explicit android_sink(std::string tag = "spdlog", bool use_raw_msg = false)
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        : tag_(std::move(tag))
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        , use_raw_msg_(use_raw_msg)
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    {
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    }
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protected:
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    void sink_it_(const details::log_msg &msg) override
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    {
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        const android_LogPriority priority = convert_to_android_(msg.level);
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        fmt::memory_buffer formatted;
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        if (use_raw_msg_)
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        {
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            details::fmt_helper::append_buf(msg.raw, formatted);
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        }
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        else
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        {
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            sink::formatter_->format(msg, formatted);
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        }
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        formatted.push_back('\0');
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        const char *msg_output = formatted.data();
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        // See system/core/liblog/logger_write.c for explanation of return value
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        int ret = __android_log_write(priority, tag_.c_str(), msg_output);
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        int retry_count = 0;
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        while ((ret == -11 /*EAGAIN*/) && (retry_count < SPDLOG_ANDROID_RETRIES))
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        {
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            details::os::sleep_for_millis(5);
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            ret = __android_log_write(priority, tag_.c_str(), msg_output);
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            retry_count++;
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        }
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        if (ret < 0)
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        {
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            throw spdlog_ex("__android_log_write() failed", ret);
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        }
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    }
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    void flush_() override {}
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private:
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    static android_LogPriority convert_to_android_(spdlog::level::level_enum level)
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    {
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        switch (level)
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        {
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        case spdlog::level::trace:
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            return ANDROID_LOG_VERBOSE;
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        case spdlog::level::debug:
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            return ANDROID_LOG_DEBUG;
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        case spdlog::level::info:
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            return ANDROID_LOG_INFO;
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        case spdlog::level::warn:
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            return ANDROID_LOG_WARN;
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        case spdlog::level::err:
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            return ANDROID_LOG_ERROR;
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        case spdlog::level::critical:
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            return ANDROID_LOG_FATAL;
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        default:
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            return ANDROID_LOG_DEFAULT;
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        }
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    }
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    std::string tag_;
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    bool use_raw_msg_;
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};
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using android_sink_mt = android_sink<std::mutex>;
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using android_sink_st = android_sink<details::null_mutex>;
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} // namespace sinks
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// Create and register android syslog logger
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template<typename Factory = default_factory>
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inline std::shared_ptr<logger> android_logger_mt(const std::string &logger_name, const std::string &tag = "spdlog")
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{
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    return Factory::template create<sinks::android_sink_mt>(logger_name, tag);
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}
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template<typename Factory = default_factory>
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inline std::shared_ptr<logger> android_logger_st(const std::string &logger_name, const std::string &tag = "spdlog")
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{
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    return Factory::template create<sinks::android_sink_st>(logger_name, tag);
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}
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} // namespace spdlog
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