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CryCommon/IMiniLog.h

@@ -0,0 +1,83 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//  Crytek Engine Source File.
+//  Copyright (C), Crytek Studios, 2003.
+// -------------------------------------------------------------------------
+//  File name:   IMiniLog.h
+//  Version:     v1.00
+//  Created:     03/6/2003 by Sergiy.
+//  Compilers:   Visual Studio.NET
+//  Description: This is the smallest possible interface to the Log - 
+//               it's independent and small, so that it can be easily moved
+//               across the engine and test applications, to test engine
+//               parts that need logging (e.g. Streaming Engine) separately
+// -------------------------------------------------------------------------
+//  History:
+//
+////////////////////////////////////////////////////////////////////////////
+#ifndef _CRY_ENGINE_MINI_LOG_HDR_
+#define _CRY_ENGINE_MINI_LOG_HDR_
+
+#include <stdarg.h>
+
+struct IMiniLog
+{
+	enum ELogType
+	{
+		eMessage,
+		eWarning,
+		eError,
+		eAlways,
+		eWarningAlways,
+		eErrorAlways,
+		eInput,
+	};
+
+	//! you only have to implement this function
+	virtual void LogV (const ELogType nType, const char* szFormat, va_list args) = 0;
+
+	// --------------------------------------------------------------------------
+
+	//! destructor
+	virtual ~IMiniLog() {}
+
+	//! this is the simplest log function for messages
+	//! with the default implementation
+	virtual void Log(const char * szFormat,...)
+	{
+		va_list args;
+		va_start(args,szFormat);
+		LogV (eMessage, szFormat, args);
+		va_end(args);
+	}
+
+	//! this is the simplest log function for warnings
+	//! with the default implementation
+	virtual void LogWarning(const char * szFormat,...)
+	{
+		va_list args;
+		va_start(args,szFormat);
+		LogV (eWarning, szFormat, args);
+		va_end(args);
+	}
+
+	//! this is the simplest log function for errors
+	//! with the default implementation
+	virtual void LogError(const char * szFormat,...)
+	{
+		va_list args;
+		va_start(args,szFormat);
+		LogV (eError, szFormat, args);
+		va_end(args);
+	}
+};
+
+// By default, to make it possible not to implement the log at the beginning at all,
+// empty implementations of the two functions are given
+struct CNullMiniLog: public IMiniLog
+{
+	// the default implementation just won't do anything
+	void LogV(const char* szFormat, va_list args) {}
+};
+
+#endif //_CRY_ENGINE_MINI_LOG_HDR_