Mercurial > hg > orthanc
view OrthancFramework/Sources/Logging.h @ 4247:112951171852
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 13 Oct 2020 10:46:05 +0200 |
parents | bf7b9edf6b81 |
children | 0ae2ca210077 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #pragma once // To have ORTHANC_ENABLE_LOGGING defined if using the shared library #include "OrthancFramework.h" #include <iostream> #if !defined(ORTHANC_ENABLE_LOGGING) # error The macro ORTHANC_ENABLE_LOGGING must be defined #endif #if !defined(ORTHANC_ENABLE_LOGGING_STDIO) # if ORTHANC_ENABLE_LOGGING == 1 # error The macro ORTHANC_ENABLE_LOGGING_STDIO must be defined # else # define ORTHANC_ENABLE_LOGGING_STDIO 0 # endif #endif namespace Orthanc { namespace Logging { enum LogLevel { LogLevel_ERROR, LogLevel_WARNING, LogLevel_INFO, LogLevel_TRACE }; ORTHANC_PUBLIC const char* EnumerationToString(LogLevel level); ORTHANC_PUBLIC LogLevel StringToLogLevel(const char* level); // "pluginContext" must be of type "OrthancPluginContext" ORTHANC_PUBLIC void InitializePluginContext(void* pluginContext); ORTHANC_PUBLIC void Initialize(); ORTHANC_PUBLIC void Finalize(); ORTHANC_PUBLIC void Reset(); ORTHANC_PUBLIC void Flush(); ORTHANC_PUBLIC void EnableInfoLevel(bool enabled); ORTHANC_PUBLIC void EnableTraceLevel(bool enabled); ORTHANC_PUBLIC bool IsTraceLevelEnabled(); ORTHANC_PUBLIC bool IsInfoLevelEnabled(); ORTHANC_PUBLIC void SetTargetFile(const std::string& path); ORTHANC_PUBLIC void SetTargetFolder(const std::string& path); struct NullStream : public std::ostream { NullStream() : std::ios(0), std::ostream(0) { } template <typename T> std::ostream& operator<< (const T& message) { return *this; } }; } } #if ORTHANC_ENABLE_LOGGING != 1 # define LOG(level) ::Orthanc::Logging::NullStream() # define VLOG(level) ::Orthanc::Logging::NullStream() #else /* ORTHANC_ENABLE_LOGGING == 1 */ # define LOG(level) ::Orthanc::Logging::InternalLogger \ (::Orthanc::Logging::LogLevel_ ## level, __FILE__, __LINE__) # define VLOG(level) ::Orthanc::Logging::InternalLogger \ (::Orthanc::Logging::LogLevel_TRACE, __FILE__, __LINE__) #endif #if (ORTHANC_ENABLE_LOGGING == 1 && \ ORTHANC_ENABLE_LOGGING_STDIO == 1) // This is notably for WebAssembly #include <boost/lexical_cast.hpp> #include <boost/noncopyable.hpp> #include <sstream> namespace Orthanc { namespace Logging { class ORTHANC_PUBLIC InternalLogger : public boost::noncopyable { private: LogLevel level_; std::stringstream messageStream_; public: InternalLogger(LogLevel level, const char* file /* ignored */, int line /* ignored */) : level_(level) { } ~InternalLogger(); template <typename T> std::ostream& operator<< (const T& message) { return messageStream_ << boost::lexical_cast<std::string>(message); } }; } } #endif #if (ORTHANC_ENABLE_LOGGING == 1 && \ ORTHANC_ENABLE_LOGGING_STDIO == 0) #include "Compatibility.h" // For std::unique_ptr<> #include <boost/lexical_cast.hpp> #include <boost/noncopyable.hpp> #include <boost/thread/mutex.hpp> #include <sstream> namespace Orthanc { namespace Logging { class ORTHANC_PUBLIC InternalLogger : public boost::noncopyable { private: boost::mutex::scoped_lock lock_; LogLevel level_; std::unique_ptr<std::stringstream> pluginStream_; std::ostream* stream_; public: InternalLogger(LogLevel level, const char* file, int line); ~InternalLogger(); template <typename T> std::ostream& operator<< (const T& message) { return (*stream_) << boost::lexical_cast<std::string>(message); } }; /** * Set custom logging streams for the error, warning and info * logs. This function may not be called if a log file or folder * has been set beforehand. All three references must be valid. * * Please ensure the supplied streams remain alive and valid as * long as logging calls are performed. In order to prevent * dangling pointer usage, it is mandatory to call * Orthanc::Logging::Reset() before the stream objects are * destroyed and the references become invalid. * * This function must only be used by unit tests. It is ignored if * InitializePluginContext() was called. **/ ORTHANC_PUBLIC void SetErrorWarnInfoLoggingStreams(std::ostream& errorStream, std::ostream& warningStream, std::ostream& infoStream); } } #endif