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00001 /********************************************************************** 00002 * $Id: cpl_error.h 14047 2008-03-20 18:46:12Z rouault $ 00003 * 00004 * Name: cpl_error.h 00005 * Project: CPL - Common Portability Library 00006 * Purpose: CPL Error handling 00007 * Author: Daniel Morissette, danmo@videotron.ca 00008 * 00009 ********************************************************************** 00010 * Copyright (c) 1998, Daniel Morissette 00011 * 00012 * Permission is hereby granted, free of charge, to any person obtaining a 00013 * copy of this software and associated documentation files (the "Software"), 00014 * to deal in the Software without restriction, including without limitation 00015 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 00016 * and/or sell copies of the Software, and to permit persons to whom the 00017 * Software is furnished to do so, subject to the following conditions: 00018 * 00019 * The above copyright notice and this permission notice shall be included 00020 * in all copies or substantial portions of the Software. 00021 * 00022 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00023 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00024 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 00025 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00026 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 00027 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 00028 * DEALINGS IN THE SOFTWARE. 00029 ****************************************************************************/ 00030 00031 #ifndef CPL_ERROR_H_INCLUDED 00032 #define CPL_ERROR_H_INCLUDED 00033 00034 #include "cpl_port.h" 00035 00036 /*===================================================================== 00037 Error handling functions (cpl_error.c) 00038 =====================================================================*/ 00039 00046 CPL_C_START 00047 00048 typedef enum 00049 { 00050 CE_None = 0, 00051 CE_Debug = 1, 00052 CE_Warning = 2, 00053 CE_Failure = 3, 00054 CE_Fatal = 4 00055 } CPLErr; 00056 00057 void CPL_DLL CPLError(CPLErr eErrClass, int err_no, const char *fmt, ...) CPL_PRINT_FUNC_FORMAT (3, 4); 00058 void CPL_DLL CPLErrorV(CPLErr, int, const char *, va_list ); 00059 void CPL_DLL CPL_STDCALL CPLErrorReset( void ); 00060 int CPL_DLL CPL_STDCALL CPLGetLastErrorNo( void ); 00061 CPLErr CPL_DLL CPL_STDCALL CPLGetLastErrorType( void ); 00062 const char CPL_DLL * CPL_STDCALL CPLGetLastErrorMsg( void ); 00063 00064 typedef void (CPL_STDCALL *CPLErrorHandler)(CPLErr, int, const char*); 00065 00066 void CPL_DLL CPL_STDCALL CPLLoggingErrorHandler( CPLErr, int, const char * ); 00067 void CPL_DLL CPL_STDCALL CPLDefaultErrorHandler( CPLErr, int, const char * ); 00068 void CPL_DLL CPL_STDCALL CPLQuietErrorHandler( CPLErr, int, const char * ); 00069 00070 CPLErrorHandler CPL_DLL CPL_STDCALL CPLSetErrorHandler(CPLErrorHandler); 00071 void CPL_DLL CPL_STDCALL CPLPushErrorHandler( CPLErrorHandler ); 00072 void CPL_DLL CPL_STDCALL CPLPopErrorHandler(void); 00073 00074 void CPL_DLL CPL_STDCALL CPLDebug( const char *, const char *, ... ) CPL_PRINT_FUNC_FORMAT (2, 3); 00075 void CPL_DLL CPL_STDCALL _CPLAssert( const char *, const char *, int ); 00076 00077 #ifdef DEBUG 00078 # define CPLAssert(expr) ((expr) ? (void)(0) : _CPLAssert(#expr,__FILE__,__LINE__)) 00079 #else 00080 # define CPLAssert(expr) 00081 #endif 00082 00083 CPL_C_END 00084 00085 /* 00086 * Helper macros used for input parameters validation. 00087 */ 00088 #ifdef DEBUG 00089 # define VALIDATE_POINTER_ERR CE_Fatal 00090 #else 00091 # define VALIDATE_POINTER_ERR CE_Failure 00092 #endif 00093 00094 #define VALIDATE_POINTER0(ptr, func) \ 00095 do { if( NULL == ptr ) \ 00096 { \ 00097 CPLErr const ret = VALIDATE_POINTER_ERR; \ 00098 CPLError( ret, CPLE_ObjectNull, \ 00099 "Pointer \'%s\' is NULL in \'%s\'.\n", #ptr, (func)); \ 00100 return; }} while(0) 00101 00102 #define VALIDATE_POINTER1(ptr, func, rc) \ 00103 do { if( NULL == ptr ) \ 00104 { \ 00105 CPLErr const ret = VALIDATE_POINTER_ERR; \ 00106 CPLError( ret, CPLE_ObjectNull, \ 00107 "Pointer \'%s\' is NULL in \'%s\'.\n", #ptr, (func)); \ 00108 return (rc); }} while(0) 00109 00110 /* ==================================================================== */ 00111 /* Well known error codes. */ 00112 /* ==================================================================== */ 00113 00114 #define CPLE_None 0 00115 #define CPLE_AppDefined 1 00116 #define CPLE_OutOfMemory 2 00117 #define CPLE_FileIO 3 00118 #define CPLE_OpenFailed 4 00119 #define CPLE_IllegalArg 5 00120 #define CPLE_NotSupported 6 00121 #define CPLE_AssertionFailed 7 00122 #define CPLE_NoWriteAccess 8 00123 #define CPLE_UserInterrupt 9 00124 #define CPLE_ObjectNull 10 00125 00126 /* 100 - 299 reserved for GDAL */ 00127 00128 #endif /* CPL_ERROR_H_INCLUDED */