73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
#include "logger.h"
|
|
#include <mutex>
|
|
#include <stdio.h>
|
|
#include <cstring>
|
|
#include <map>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <memory>
|
|
#include <iomanip>
|
|
#include <sstream>
|
|
|
|
#ifndef WIN32
|
|
#include <cstdarg>
|
|
#endif
|
|
|
|
#define LOG_BUFFER_SIZE 4096
|
|
thread_local std::unique_ptr<char, decltype(free)*> log_buffer{nullptr, nullptr};
|
|
|
|
std::mutex target_file_lock;
|
|
std::unique_ptr<std::ofstream> file_stream;
|
|
|
|
std::string logging_session;
|
|
void logger::log_raw(logger::level::value level, const char* format, ...) {
|
|
if(!log_buffer)
|
|
log_buffer = std::unique_ptr<char, decltype(free)*>((char*) malloc(LOG_BUFFER_SIZE), ::free);
|
|
if(logging_session.empty()) {
|
|
std::ostringstream os;
|
|
os << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (uint32_t) rand();
|
|
logging_session = "[" + os.str() + "]";
|
|
}
|
|
|
|
|
|
va_list arg_lst;
|
|
va_start(arg_lst, format);
|
|
auto result = vsnprintf(log_buffer.get(), LOG_BUFFER_SIZE, format, arg_lst);
|
|
va_end(arg_lst);
|
|
|
|
|
|
{
|
|
std::lock_guard lock(target_file_lock);
|
|
if(result < 0) {
|
|
fprintf(stdout, "failed to format log message (%d)\n", result);
|
|
if(file_stream)
|
|
*file_stream << logging_session << "f ailed to format log message (" << result << ")\n";
|
|
} else {
|
|
fprintf(stdout, "[%d] ", level);
|
|
fwrite(log_buffer.get(), result, 1, stdout);
|
|
fprintf(stdout, "\n");
|
|
|
|
if(file_stream) {
|
|
*file_stream << logging_session << "[" << level << "] ";
|
|
file_stream->write(log_buffer.get(), result);
|
|
*file_stream << "\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void logger::flush() {
|
|
std::lock_guard lock(target_file_lock);
|
|
if(file_stream) {
|
|
file_stream->flush();
|
|
}
|
|
}
|
|
|
|
|
|
bool logger::pipe_file(const std::string_view &target) {
|
|
auto handle = std::make_unique<std::ofstream>(std::string(target.data(), target.size()), std::ofstream::app | std::ofstream::out);
|
|
if(!handle->good())
|
|
return false;
|
|
file_stream = std::move(handle);
|
|
return true;
|
|
} |