173 lines
6.9 KiB
C++
173 lines
6.9 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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#pragma once
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#ifndef SPDLOG_HEADER_ONLY
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#include <spdlog/sinks/wincolor_sink.h>
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#endif
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#include <spdlog/details/windows_include.h>
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#include <wincon.h>
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#include <spdlog/common.h>
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#include <spdlog/pattern_formatter.h>
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namespace spdlog {
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namespace sinks {
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template <typename ConsoleMutex>
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SPDLOG_INLINE wincolor_sink<ConsoleMutex>::wincolor_sink(void *out_handle, color_mode mode)
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: out_handle_(out_handle),
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mutex_(ConsoleMutex::mutex()),
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formatter_(details::make_unique<spdlog::pattern_formatter>()) {
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set_color_mode_impl(mode);
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// set level colors
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colors_[level::trace] = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; // white
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colors_[level::debug] = FOREGROUND_GREEN | FOREGROUND_BLUE; // cyan
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colors_[level::info] = FOREGROUND_GREEN; // green
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colors_[level::warn] =
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FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY; // intense yellow
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colors_[level::err] = FOREGROUND_RED | FOREGROUND_INTENSITY; // intense red
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colors_[level::critical] = BACKGROUND_RED | FOREGROUND_RED | FOREGROUND_GREEN |
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FOREGROUND_BLUE |
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FOREGROUND_INTENSITY; // intense white on red background
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colors_[level::off] = 0;
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}
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template <typename ConsoleMutex>
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SPDLOG_INLINE wincolor_sink<ConsoleMutex>::~wincolor_sink() {
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this->flush();
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}
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// change the color for the given level
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::set_color(level::level_enum level,
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std::uint16_t color) {
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std::lock_guard<mutex_t> lock(mutex_);
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colors_[static_cast<size_t>(level)] = color;
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}
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::log(const details::log_msg &msg) {
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if (out_handle_ == nullptr || out_handle_ == INVALID_HANDLE_VALUE) {
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return;
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}
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std::lock_guard<mutex_t> lock(mutex_);
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msg.color_range_start = 0;
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msg.color_range_end = 0;
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memory_buf_t formatted;
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formatter_->format(msg, formatted);
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if (should_do_colors_ && msg.color_range_end > msg.color_range_start) {
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// before color range
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print_range_(formatted, 0, msg.color_range_start);
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// in color range
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auto orig_attribs =
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static_cast<WORD>(set_foreground_color_(colors_[static_cast<size_t>(msg.level)]));
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print_range_(formatted, msg.color_range_start, msg.color_range_end);
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// reset to orig colors
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::SetConsoleTextAttribute(static_cast<HANDLE>(out_handle_), orig_attribs);
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print_range_(formatted, msg.color_range_end, formatted.size());
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} else // print without colors if color range is invalid (or color is disabled)
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{
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write_to_file_(formatted);
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}
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}
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::flush() {
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// windows console always flushed?
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}
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::set_pattern(const std::string &pattern) {
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std::lock_guard<mutex_t> lock(mutex_);
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formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
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}
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template <typename ConsoleMutex>
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void SPDLOG_INLINE
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wincolor_sink<ConsoleMutex>::set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) {
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std::lock_guard<mutex_t> lock(mutex_);
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formatter_ = std::move(sink_formatter);
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}
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::set_color_mode(color_mode mode) {
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std::lock_guard<mutex_t> lock(mutex_);
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set_color_mode_impl(mode);
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}
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::set_color_mode_impl(color_mode mode) {
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if (mode == color_mode::automatic) {
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// should do colors only if out_handle_ points to actual console.
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DWORD console_mode;
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bool in_console = ::GetConsoleMode(static_cast<HANDLE>(out_handle_), &console_mode) != 0;
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should_do_colors_ = in_console;
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} else {
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should_do_colors_ = mode == color_mode::always ? true : false;
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}
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}
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// set foreground color and return the orig console attributes (for resetting later)
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template <typename ConsoleMutex>
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std::uint16_t SPDLOG_INLINE
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wincolor_sink<ConsoleMutex>::set_foreground_color_(std::uint16_t attribs) {
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CONSOLE_SCREEN_BUFFER_INFO orig_buffer_info;
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if (!::GetConsoleScreenBufferInfo(static_cast<HANDLE>(out_handle_), &orig_buffer_info)) {
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// just return white if failed getting console info
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return FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
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}
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// change only the foreground bits (lowest 4 bits)
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auto new_attribs = static_cast<WORD>(attribs) | (orig_buffer_info.wAttributes & 0xfff0);
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auto ignored =
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::SetConsoleTextAttribute(static_cast<HANDLE>(out_handle_), static_cast<WORD>(new_attribs));
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(void)(ignored);
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return static_cast<std::uint16_t>(orig_buffer_info.wAttributes); // return orig attribs
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}
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// print a range of formatted message to console
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::print_range_(const memory_buf_t &formatted,
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size_t start,
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size_t end) {
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if (end > start) {
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#if defined(SPDLOG_UTF8_TO_WCHAR_CONSOLE)
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wmemory_buf_t wformatted;
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details::os::utf8_to_wstrbuf(string_view_t(formatted.data() + start, end - start),
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wformatted);
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auto size = static_cast<DWORD>(wformatted.size());
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auto ignored = ::WriteConsoleW(static_cast<HANDLE>(out_handle_), wformatted.data(), size,
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nullptr, nullptr);
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#else
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auto size = static_cast<DWORD>(end - start);
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auto ignored = ::WriteConsoleA(static_cast<HANDLE>(out_handle_), formatted.data() + start,
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size, nullptr, nullptr);
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#endif
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(void)(ignored);
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}
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}
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template <typename ConsoleMutex>
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void SPDLOG_INLINE wincolor_sink<ConsoleMutex>::write_to_file_(const memory_buf_t &formatted) {
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auto size = static_cast<DWORD>(formatted.size());
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DWORD bytes_written = 0;
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auto ignored = ::WriteFile(static_cast<HANDLE>(out_handle_), formatted.data(), size,
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&bytes_written, nullptr);
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(void)(ignored);
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}
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// wincolor_stdout_sink
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template <typename ConsoleMutex>
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SPDLOG_INLINE wincolor_stdout_sink<ConsoleMutex>::wincolor_stdout_sink(color_mode mode)
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: wincolor_sink<ConsoleMutex>(::GetStdHandle(STD_OUTPUT_HANDLE), mode) {}
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// wincolor_stderr_sink
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template <typename ConsoleMutex>
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SPDLOG_INLINE wincolor_stderr_sink<ConsoleMutex>::wincolor_stderr_sink(color_mode mode)
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: wincolor_sink<ConsoleMutex>(::GetStdHandle(STD_ERROR_HANDLE), mode) {}
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} // namespace sinks
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} // namespace spdlog
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