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6f16826260
operator+ for std::string creates an entirely new string, which is kind of unnecessary here if we just want to append a null terminator to the existing one. Reduces the total amount of potential allocations that need to be done in the logging path.
111 lines
3.1 KiB
C++
111 lines
3.1 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <array>
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#include <cstdio>
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#include "common/assert.h"
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#include "common/common_funcs.h"
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#include "common/logging/backend.h"
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#include "common/logging/log.h"
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#include "common/logging/text_formatter.h"
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#include "common/string_util.h"
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namespace Log {
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std::string FormatLogMessage(const Entry& entry) {
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unsigned int time_seconds = static_cast<unsigned int>(entry.timestamp.count() / 1000000);
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unsigned int time_fractional = static_cast<unsigned int>(entry.timestamp.count() % 1000000);
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const char* class_name = GetLogClassName(entry.log_class);
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const char* level_name = GetLevelName(entry.log_level);
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return fmt::format("[{:4d}.{:06d}] {} <{}> {}:{}:{}: {}", time_seconds, time_fractional,
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class_name, level_name, entry.filename, entry.function, entry.line_num,
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entry.message);
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}
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void PrintMessage(const Entry& entry) {
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const auto str = FormatLogMessage(entry).append(1, '\n');
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fputs(str.c_str(), stderr);
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}
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void PrintColoredMessage(const Entry& entry) {
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#ifdef _WIN32
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HANDLE console_handle = GetStdHandle(STD_ERROR_HANDLE);
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if (console_handle == INVALID_HANDLE_VALUE) {
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return;
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}
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CONSOLE_SCREEN_BUFFER_INFO original_info = {};
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GetConsoleScreenBufferInfo(console_handle, &original_info);
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WORD color = 0;
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switch (entry.log_level) {
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case Level::Trace: // Grey
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color = FOREGROUND_INTENSITY;
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break;
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case Level::Debug: // Cyan
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color = FOREGROUND_GREEN | FOREGROUND_BLUE;
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break;
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case Level::Info: // Bright gray
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color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
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break;
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case Level::Warning: // Bright yellow
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color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY;
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break;
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case Level::Error: // Bright red
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color = FOREGROUND_RED | FOREGROUND_INTENSITY;
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break;
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case Level::Critical: // Bright magenta
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color = FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY;
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break;
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case Level::Count:
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UNREACHABLE();
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}
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SetConsoleTextAttribute(console_handle, color);
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#else
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#define ESC "\x1b"
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const char* color = "";
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switch (entry.log_level) {
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case Level::Trace: // Grey
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color = ESC "[1;30m";
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break;
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case Level::Debug: // Cyan
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color = ESC "[0;36m";
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break;
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case Level::Info: // Bright gray
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color = ESC "[0;37m";
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break;
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case Level::Warning: // Bright yellow
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color = ESC "[1;33m";
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break;
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case Level::Error: // Bright red
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color = ESC "[1;31m";
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break;
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case Level::Critical: // Bright magenta
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color = ESC "[1;35m";
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break;
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case Level::Count:
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UNREACHABLE();
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}
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fputs(color, stderr);
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#endif
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PrintMessage(entry);
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#ifdef _WIN32
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SetConsoleTextAttribute(console_handle, original_info.wAttributes);
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#else
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fputs(ESC "[0m", stderr);
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#undef ESC
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#endif
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}
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} // namespace Log
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