136 lines
4.1 KiB
C++
136 lines
4.1 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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# define WIN32_LEAN_AND_MEAN
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# include <Windows.h>
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#endif
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#include "common/logging/backend.h"
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#include "common/logging/filter.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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// TODO(bunnei): This should be moved to a generic path manipulation library
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const char* TrimSourcePath(const char* path, const char* root) {
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const char* p = path;
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while (*p != '\0') {
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const char* next_slash = p;
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while (*next_slash != '\0' && *next_slash != '/' && *next_slash != '\\') {
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++next_slash;
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}
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bool is_src = Common::ComparePartialString(p, next_slash, root);
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p = next_slash;
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if (*p != '\0') {
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++p;
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}
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if (is_src) {
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path = p;
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}
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}
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return path;
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}
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void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len) {
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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 = Logger::GetLogClassName(entry.log_class);
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const char* level_name = Logger::GetLevelName(entry.log_level);
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snprintf(out_text, text_len, "[%4u.%06u] %s <%s> %s: %s",
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time_seconds, time_fractional, class_name, level_name,
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TrimSourcePath(entry.location.c_str()), entry.message.c_str());
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}
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void PrintMessage(const Entry& entry) {
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std::array<char, 4 * 1024> format_buffer;
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FormatLogMessage(entry, format_buffer.data(), format_buffer.size());
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fputs(format_buffer.data(), stderr);
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fputc('\n', stderr);
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}
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void PrintColoredMessage(const Entry& entry) {
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#ifdef _WIN32
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static HANDLE console_handle = GetStdHandle(STD_ERROR_HANDLE);
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CONSOLE_SCREEN_BUFFER_INFO original_info = {0};
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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; break;
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case Level::Debug: // Cyan
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color = FOREGROUND_GREEN | FOREGROUND_BLUE; break;
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case Level::Info: // Bright gray
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color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; break;
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case Level::Warning: // Bright yellow
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color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY; break;
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case Level::Error: // Bright red
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color = FOREGROUND_RED | FOREGROUND_INTENSITY; break;
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case Level::Critical: // Bright magenta
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color = FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY; break;
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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"; break;
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case Level::Debug: // Cyan
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color = ESC "[0;36m"; break;
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case Level::Info: // Bright gray
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color = ESC "[0;37m"; break;
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case Level::Warning: // Bright yellow
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color = ESC "[1;33m"; break;
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case Level::Error: // Bright red
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color = ESC "[1;31m"; break;
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case Level::Critical: // Bright magenta
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color = ESC "[1;35m"; break;
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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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void TextLoggingLoop(std::shared_ptr<Logger> logger, const Filter* filter) {
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std::array<Entry, 256> entry_buffer;
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while (true) {
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size_t num_entries = logger->GetEntries(entry_buffer.data(), entry_buffer.size());
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if (num_entries == Logger::QUEUE_CLOSED) {
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break;
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}
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for (size_t i = 0; i < num_entries; ++i) {
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const Entry& entry = entry_buffer[i];
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if (filter->CheckMessage(entry.log_class, entry.log_level)) {
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PrintColoredMessage(entry);
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}
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}
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}
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}
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}
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