| // Copyright 2013 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Author: oschaaf@gmail.com (Otto van der Schaaf) |
| |
| #ifndef NGX_MESSAGE_HANDLER_H_ |
| #define NGX_MESSAGE_HANDLER_H_ |
| |
| extern "C" { |
| #include <ngx_auto_config.h> |
| #if (NGX_THREADS) |
| #include <ngx_thread.h> |
| #endif |
| #include <ngx_core.h> |
| #include <ngx_log.h> |
| } |
| |
| #include <cstdarg> |
| |
| #include "net/instaweb/system/public/system_message_handler.h" |
| #include "net/instaweb/util/public/basictypes.h" |
| #include "net/instaweb/util/public/message_handler.h" |
| #include "net/instaweb/util/public/string.h" |
| #include "net/instaweb/util/public/string_util.h" |
| |
| namespace net_instaweb { |
| |
| class AbstractMutex; |
| class Timer; |
| |
| // Implementation of a message handler that uses ngx_log_error() |
| // logging to emit messages, with a fallback to GoogleMessageHandler |
| class NgxMessageHandler : public SystemMessageHandler { |
| public: |
| explicit NgxMessageHandler(Timer* timer, AbstractMutex* mutex); |
| |
| // Installs a signal handler for common crash signals that tries to print |
| // out a backtrace. |
| static void InstallCrashHandler(ngx_log_t* log); |
| |
| void set_log(ngx_log_t* log) { log_ = log; } |
| ngx_log_t* log() { return log_; } |
| |
| protected: |
| virtual void MessageVImpl(MessageType type, const char* msg, va_list args); |
| |
| virtual void FileMessageVImpl(MessageType type, const char* filename, |
| int line, const char* msg, va_list args); |
| |
| private: |
| ngx_uint_t GetNgxLogLevel(MessageType type); |
| ngx_log_t* log_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NgxMessageHandler); |
| }; |
| |
| } // namespace net_instaweb |
| |
| #endif // NGX_MESSAGE_HANDLER_H_ |