diff --git a/library/PolyVoxCore/include/PolyVoxCore/Impl/Logging.h b/library/PolyVoxCore/include/PolyVoxCore/Impl/Logging.h index ce3f5946..4226f2e6 100644 --- a/library/PolyVoxCore/include/PolyVoxCore/Impl/Logging.h +++ b/library/PolyVoxCore/include/PolyVoxCore/Impl/Logging.h @@ -35,12 +35,54 @@ freely, subject to the following restrictions: * PolyVox provides basic logging facilities which can be redirected by your application. */ -#define LOG_DECLARATION(name) \ - std::ostream& log(name)(void); \ - void set(name)Stream(std::ostream& nameStream); - namespace PolyVox { + class Logger + { + public: + // Passing zero to the null stream constructor guarentees it will discard all input. See + // here http://stackoverflow.com/a/8244052 and here http://stackoverflow.com/a/6240980 + Logger() : m_NullStream(0) {}; + virtual ~Logger() {}; + + virtual std::ostream& getTraceStream() = 0; + virtual std::ostream& getDebugStream() = 0; + virtual std::ostream& getInfoStream() = 0; + virtual std::ostream& getWarningStream() = 0; + virtual std::ostream& getErrorStream() = 0; + virtual std::ostream& getFatalStream() = 0; + + protected: + std::ostream& getNullStream() + { + return m_NullStream; + } + + private: + std::ostream m_NullStream; + }; + + class DefaultLogger : Logger + { + public: + DefaultLogger() : Logger() {} + virtual ~DefaultLogger() {} + + std::ostream& getTraceStream() { return getNullStream(); } + std::ostream& getDebugStream() { return getNullStream(); } + std::ostream& getInfoStream() { return (std::cout); } + std::ostream& getWarningStream() { return (std::cerr); } + std::ostream& getErrorStream() { return (std::cerr); } + std::ostream& getFatalStream() { return (std::cerr); } + }; + + namespace Impl + { + Logger*& getLoggerInstance(); + } + + void setLogger(Logger* pLogger); + namespace Impl { std::ostream*& getTraceStreamInstance(); diff --git a/library/PolyVoxCore/source/Impl/Logging.cpp b/library/PolyVoxCore/source/Impl/Logging.cpp index 2dc3f046..31af87c7 100644 --- a/library/PolyVoxCore/source/Impl/Logging.cpp +++ b/library/PolyVoxCore/source/Impl/Logging.cpp @@ -25,6 +25,22 @@ freely, subject to the following restrictions: namespace PolyVox { + namespace Impl + { + // Perhaps read this note when we want to move everything + // to the header file: http://stackoverflow.com/a/7834555 + Logger*& getLoggerInstance() + { + static Logger* s_pLogger = 0; + return s_pLogger; + } + } + + void setLogger(Logger* pLogger) + { + Impl::getLoggerInstance() = pLogger; + } + /** * \return A pointer to the null stream. */