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- /**********************************************************************
- * $Id: cpl_error.h e3511844a11959bd81f5956a1e7e2de96900e7ac 2019-04-25 11:53:15 +0200 Even Rouault $
- *
- * Name: cpl_error.h
- * Project: CPL - Common Portability Library
- * Purpose: CPL Error handling
- * Author: Daniel Morissette, danmo@videotron.ca
- *
- **********************************************************************
- * Copyright (c) 1998, Daniel Morissette
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- ****************************************************************************/
-
- #ifndef CPL_ERROR_H_INCLUDED
- #define CPL_ERROR_H_INCLUDED
-
- #include "cpl_port.h"
-
- #include <stdarg.h>
- #include <stddef.h>
-
- /*=====================================================================
- Error handling functions (cpl_error.c)
- =====================================================================*/
-
- /**
- * \file cpl_error.h
- *
- * CPL error handling services.
- */
-
- CPL_C_START
-
- /** Error category */
- typedef enum
- {
- CE_None = 0,
- CE_Debug = 1,
- CE_Warning = 2,
- CE_Failure = 3,
- CE_Fatal = 4
- } CPLErr;
-
- /* ==================================================================== */
- /* Well known error codes. */
- /* ==================================================================== */
-
- #ifdef STRICT_CPLERRORNUM_TYPE
-
- /* This is not appropriate for the general case, as there are parts */
- /* of GDAL which use custom error codes, but this can help diagnose confusions */
- /* between CPLErr and CPLErrorNum */
- typedef enum
- {
- CPLE_None,
- CPLE_AppDefined,
- CPLE_OutOfMemory,
- CPLE_FileIO,
- CPLE_OpenFailed,
- CPLE_IllegalArg,
- CPLE_NotSupported,
- CPLE_AssertionFailed,
- CPLE_NoWriteAccess,
- CPLE_UserInterrupt,
- CPLE_ObjectNull,
- CPLE_HttpResponse,
- CPLE_AWSBucketNotFound,
- CPLE_AWSObjectNotFound,
- CPLE_AWSAccessDenied,
- CPLE_AWSInvalidCredentials,
- CPLE_AWSSignatureDoesNotMatch,
- } CPLErrorNum;
-
- #else
-
- /** Error number */
- typedef int CPLErrorNum;
-
- /** No error */
- #define CPLE_None 0
- /** Application defined error */
- #define CPLE_AppDefined 1
- /** Out of memory error */
- #define CPLE_OutOfMemory 2
- /** File I/O error */
- #define CPLE_FileIO 3
- /** Open failed */
- #define CPLE_OpenFailed 4
- /** Illegal argument */
- #define CPLE_IllegalArg 5
- /** Not supported */
- #define CPLE_NotSupported 6
- /** Assertion failed */
- #define CPLE_AssertionFailed 7
- /** No write access */
- #define CPLE_NoWriteAccess 8
- /** User interrupted */
- #define CPLE_UserInterrupt 9
- /** NULL object */
- #define CPLE_ObjectNull 10
-
- /*
- * Filesystem-specific errors
- */
- /** HTTP response */
- #define CPLE_HttpResponse 11
- /** AWSBucketNotFound */
- #define CPLE_AWSBucketNotFound 12
- /** AWSObjectNotFound */
- #define CPLE_AWSObjectNotFound 13
- /** AWSAccessDenied */
- #define CPLE_AWSAccessDenied 14
- /** AWSInvalidCredentials */
- #define CPLE_AWSInvalidCredentials 15
- /** AWSSignatureDoesNotMatch */
- #define CPLE_AWSSignatureDoesNotMatch 16
- /** VSIE_AWSError */
- #define CPLE_AWSError 17
-
- /* 100 - 299 reserved for GDAL */
-
- #endif
-
- void CPL_DLL CPLError(CPLErr eErrClass, CPLErrorNum err_no, CPL_FORMAT_STRING(const char *fmt), ...) CPL_PRINT_FUNC_FORMAT (3, 4);
- void CPL_DLL CPLErrorV(CPLErr, CPLErrorNum, const char *, va_list );
- void CPL_DLL CPLEmergencyError( const char * ) CPL_NO_RETURN;
- void CPL_DLL CPL_STDCALL CPLErrorReset( void );
- CPLErrorNum CPL_DLL CPL_STDCALL CPLGetLastErrorNo( void );
- CPLErr CPL_DLL CPL_STDCALL CPLGetLastErrorType( void );
- const char CPL_DLL * CPL_STDCALL CPLGetLastErrorMsg( void );
- GUInt32 CPL_DLL CPL_STDCALL CPLGetErrorCounter( void );
- void CPL_DLL * CPL_STDCALL CPLGetErrorHandlerUserData(void);
- void CPL_DLL CPLErrorSetState( CPLErr eErrClass, CPLErrorNum err_no, const char* pszMsg );
- /*! @cond Doxygen_Suppress */
- void CPL_DLL CPLCleanupErrorMutex( void );
- /*! @endcond */
-
- /** Callback for a custom error handler */
- typedef void (CPL_STDCALL *CPLErrorHandler)(CPLErr, CPLErrorNum, const char*);
-
- void CPL_DLL CPL_STDCALL CPLLoggingErrorHandler( CPLErr, CPLErrorNum, const char * );
- void CPL_DLL CPL_STDCALL CPLDefaultErrorHandler( CPLErr, CPLErrorNum, const char * );
- void CPL_DLL CPL_STDCALL CPLQuietErrorHandler( CPLErr, CPLErrorNum, const char * );
- void CPLTurnFailureIntoWarning( int bOn );
-
- CPLErrorHandler CPL_DLL CPL_STDCALL CPLSetErrorHandler( CPLErrorHandler );
- CPLErrorHandler CPL_DLL CPL_STDCALL CPLSetErrorHandlerEx( CPLErrorHandler, void* );
- void CPL_DLL CPL_STDCALL CPLPushErrorHandler( CPLErrorHandler );
- void CPL_DLL CPL_STDCALL CPLPushErrorHandlerEx( CPLErrorHandler, void* );
- void CPL_DLL CPL_STDCALL CPLSetCurrentErrorHandlerCatchDebug( int bCatchDebug );
- void CPL_DLL CPL_STDCALL CPLPopErrorHandler(void);
-
- #ifdef WITHOUT_CPLDEBUG
- #define CPLDebug(...) /* Eat all CPLDebug calls. */
- #else
- void CPL_DLL CPL_STDCALL CPLDebug(const char *, CPL_FORMAT_STRING(const char *), ...)
- CPL_PRINT_FUNC_FORMAT(2, 3);
- #endif
-
- void CPL_DLL CPL_STDCALL _CPLAssert( const char *, const char *, int ) CPL_NO_RETURN;
-
- #ifdef DEBUG
- /** Assert on an expression. Only enabled in DEBUG mode */
- # define CPLAssert(expr) ((expr) ? (void)(0) : _CPLAssert(#expr,__FILE__,__LINE__))
- /** Assert on an expression in DEBUG mode. Evaluate it also in non-DEBUG mode (useful to 'consume' a error return variable) */
- # define CPLAssertAlwaysEval(expr) CPLAssert(expr)
- #else
- /** Assert on an expression. Only enabled in DEBUG mode */
- # define CPLAssert(expr)
- #ifdef __cplusplus
- /** Assert on an expression in DEBUG mode. Evaluate it also in non-DEBUG mode (useful to 'consume' a error return variable) */
- # define CPLAssertAlwaysEval(expr) CPL_IGNORE_RET_VAL(expr)
- #else
- /** Assert on an expression in DEBUG mode. Evaluate it also in non-DEBUG mode (useful to 'consume' a error return variable) */
- # define CPLAssertAlwaysEval(expr) (void)(expr)
- #endif
- #endif
-
- CPL_C_END
-
- /*! @cond Doxygen_Suppress */
- /*
- * Helper macros used for input parameters validation.
- */
- #ifdef DEBUG
- # define VALIDATE_POINTER_ERR CE_Fatal
- #else
- # define VALIDATE_POINTER_ERR CE_Failure
- #endif
-
-
- #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS) && !defined(DOXYGEN_SKIP)
-
- extern "C++"
- {
-
- #include <string>
-
- class CPLErrorHandlerPusher
- {
- public:
- explicit CPLErrorHandlerPusher(CPLErrorHandler hHandler)
- {
- CPLPushErrorHandler(hHandler);
- }
-
- CPLErrorHandlerPusher(CPLErrorHandler hHandler, void* user_data)
- {
- CPLPushErrorHandlerEx(hHandler, user_data);
- }
-
- ~CPLErrorHandlerPusher()
- {
- CPLPopErrorHandler();
- }
- };
-
- class CPLErrorStateBackuper
- {
- CPLErrorNum m_nLastErrorNum;
- CPLErr m_nLastErrorType;
- std::string m_osLastErrorMsg;
-
- public:
- CPLErrorStateBackuper() :
- m_nLastErrorNum(CPLGetLastErrorNo()),
- m_nLastErrorType(CPLGetLastErrorType()),
- m_osLastErrorMsg(CPLGetLastErrorMsg())
- {}
-
- ~CPLErrorStateBackuper()
- {
- CPLErrorSetState(m_nLastErrorType, m_nLastErrorNum,
- m_osLastErrorMsg.c_str());
- }
- };
-
- }
-
- #ifdef GDAL_COMPILATION
- // internal only
- bool CPLIsDefaultErrorHandlerAndCatchDebug();
- #endif
-
- #endif
-
- /*! @endcond */
-
- /** Validate that a pointer is not NULL */
- #define VALIDATE_POINTER0(ptr, func) \
- do { if( CPL_NULLPTR == ptr ) \
- { \
- CPLErr const ret = VALIDATE_POINTER_ERR; \
- CPLError( ret, CPLE_ObjectNull, \
- "Pointer \'%s\' is NULL in \'%s\'.\n", #ptr, (func)); \
- return; }} while(0)
-
- /** Validate that a pointer is not NULL, and return rc if it is NULL */
- #define VALIDATE_POINTER1(ptr, func, rc) \
- do { if( CPL_NULLPTR == ptr ) \
- { \
- CPLErr const ret = VALIDATE_POINTER_ERR; \
- CPLError( ret, CPLE_ObjectNull, \
- "Pointer \'%s\' is NULL in \'%s\'.\n", #ptr, (func)); \
- return (rc); }} while(0)
-
- #endif /* CPL_ERROR_H_INCLUDED */
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