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spdlog/include/spdlog/sinks/msvc_sink.h
2023-09-28 00:46:42 +03:00

55 lines
1.5 KiB
C++

// Copyright(c) 2016 Alexander Dalshov & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#if defined(_WIN32)
#include "../details/null_mutex.h"
#include "base_sink.h"
#include <mutex>
#include <string>
// Avoid including windows.h (https://stackoverflow.com/a/30741042)
extern "C" __declspec(dllimport) void __stdcall OutputDebugStringA(const char *lpOutputString);
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace spdlog {
namespace sinks {
/*
* MSVC sink (logging using OutputDebugStringA)
*/
template <typename Mutex>
class msvc_sink : public base_sink<Mutex> {
public:
msvc_sink() = default;
msvc_sink(bool check_debugger_present)
: check_debugger_present_{check_debugger_present} {};
protected:
void sink_it_(const details::log_msg &msg) override {
if (check_debugger_present_ && !IsDebuggerPresent()) {
return;
}
memory_buf_t formatted;
base_sink<Mutex>::formatter_->format(msg, formatted);
formatted.push_back('\0'); // add a null terminator for OutputDebugString
OutputDebugStringA(formatted.data());
}
void flush_() override {}
bool check_debugger_present_ = true;
};
using msvc_sink_mt = msvc_sink<std::mutex>;
using msvc_sink_st = msvc_sink<details::null_mutex>;
using windebug_sink_mt = msvc_sink_mt;
using windebug_sink_st = msvc_sink_st;
} // namespace sinks
} // namespace spdlog
#endif