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47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#include <lokinet/lokinet_misc.h>
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#include <spdlog/sinks/base_sink.h>
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#include <spdlog/details/null_mutex.h>
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#include <mutex>
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namespace llarp::logging
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{
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// Logger that calls a C function with the formatted log message
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template <typename Mutex>
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class CallbackSink : public spdlog::sinks::base_sink<Mutex>
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{
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private:
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lokinet_logger_func log_;
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lokinet_logger_sync sync_;
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void* ctx_;
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public:
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explicit CallbackSink(
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lokinet_logger_func log, lokinet_logger_sync sync = nullptr, void* context = nullptr)
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: log_{log}, sync_{sync}, ctx_{context}
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{}
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protected:
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void
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sink_it_(const spdlog::details::log_msg& msg) override
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{
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if (!log_)
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return;
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spdlog::memory_buf_t formatted;
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spdlog::sinks::base_sink<Mutex>::formatter_->format(msg, formatted);
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log_(fmt::to_string(formatted).c_str(), ctx_);
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}
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void
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flush_() override
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{
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if (sync_)
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sync_(ctx_);
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}
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};
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// Convenience aliases with or without thread safety
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using CallbackSink_mt = CallbackSink<std::mutex>;
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using CallbackSink_st = CallbackSink<spdlog::details::null_mutex>;
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} // namespace llarp::logging
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