| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "lib/fxl/log_settings.h" |
| |
| #include <fcntl.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <algorithm> |
| #include <iostream> |
| |
| #include "lib/fxl/logging.h" |
| |
| namespace fxl { |
| namespace state { |
| |
| // Defined in log_settings_state.cc. |
| extern LogSettings g_log_settings; |
| |
| } // namespace state |
| |
| void SetLogSettings(const LogSettings& settings) { |
| // Validate the new settings as we set them. |
| state::g_log_settings.min_log_level = |
| std::min(LOG_FATAL, settings.min_log_level); |
| |
| if (state::g_log_settings.log_file != settings.log_file) { |
| if (!settings.log_file.empty()) { |
| // Redirect stderr to file. |
| int fd = open(settings.log_file.c_str(), O_WRONLY | O_CREAT | O_APPEND); |
| if (fd < 0) { |
| std::cerr << "Could not open log file: " << settings.log_file << " (" |
| << strerror(errno) << ")" << std::endl; |
| } else { |
| if (dup2(fd, STDERR_FILENO) < 0) |
| std::cerr << "Could not set stderr to log file: " << settings.log_file |
| << " (" << strerror(errno) << ")" << std::endl; |
| else |
| state::g_log_settings.log_file = settings.log_file; |
| close(fd); |
| } |
| } |
| } |
| } |
| |
| LogSettings GetLogSettings() { return state::g_log_settings; } |
| |
| int GetMinLogLevel() { |
| return std::min(state::g_log_settings.min_log_level, LOG_FATAL); |
| } |
| |
| } // namespace fxl |