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Viewing changes to libs/appleutility/CAXException.h

  • Committer: Package Import Robot
  • Author(s): Felipe Sateler
  • Date: 2013-09-21 19:05:02 UTC
  • Revision ID: package-import@ubuntu.com-20130921190502-8gsftrku6jnzhd7v
Tags: upstream-3.4~dfsg
Import upstream version 3.4~dfsg

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libs/appleutility/CAXException.h
 
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/*      Copyright:      � Copyright 2005 Apple Computer, Inc. All rights reserved.
 
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        Disclaimer:     IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
 
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                        ("Apple") in consideration of your agreement to the following terms, and your
 
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                        use, installation, modification or redistribution of this Apple software
 
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                        constitutes acceptance of these terms.  If you do not agree with these terms,
 
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                        please do not use, install, modify or redistribute this Apple software.
 
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                        In consideration of your agreement to abide by the following terms, and subject
 
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                        to these terms, Apple grants you a personal, non-exclusive license, under Apple�s
 
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                        copyrights in this original Apple software (the "Apple Software"), to use,
 
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                        reproduce, modify and redistribute the Apple Software, with or without
 
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                        modifications, in source and/or binary forms; provided that if you redistribute
 
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                        the Apple Software in its entirety and without modifications, you must retain
 
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                        this notice and the following text and disclaimers in all such redistributions of
 
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                        the Apple Software.  Neither the name, trademarks, service marks or logos of
 
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                        Apple Computer, Inc. may be used to endorse or promote products derived from the
 
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                        Apple Software without specific prior written permission from Apple.  Except as
 
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                        expressly stated in this notice, no other rights or licenses, express or implied,
 
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                        are granted by Apple herein, including but not limited to any patent rights that
 
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                        may be infringed by your derivative works or by other works in which the Apple
 
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                        Software may be incorporated.
 
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                        The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
 
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                        WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
 
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                        WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 
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                        PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
 
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                        COMBINATION WITH YOUR PRODUCTS.
 
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                        IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
 
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                        CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 
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                        GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 
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                        ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
 
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                        OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
 
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                        (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
 
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                        ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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*/
 
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/*=============================================================================
 
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        CAXException.h
 
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=============================================================================*/
 
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#ifndef __CAXException_h__
 
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#define __CAXException_h__
 
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#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
 
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        #include <CoreServices/CoreServices.h>
 
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#else
 
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        #include <ConditionalMacros.h>
 
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        #include <CoreServices.h>
 
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#endif
 
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#include "CADebugMacros.h"
 
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#include <ctype.h>
 
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#include <stdio.h>
 
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#include <string.h>
 
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// An extended exception class that includes the name of the failed operation
 
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class CAXException {
 
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public:
 
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        CAXException(const char *operation, OSStatus err) :
 
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                mError(err)
 
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                {
 
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                        if (operation == NULL)
 
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                                mOperation[0] = '\0';
 
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                        else if (strlen(operation) >= sizeof(mOperation)) {
 
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                                memcpy(mOperation, operation, sizeof(mOperation) - 1);
 
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                                mOperation[sizeof(mOperation) - 1] = '\0';
 
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                        } else
 
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                                strcpy(mOperation, operation);
 
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                }
 
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        char *FormatError(char *str) const
 
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        {
 
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                return FormatError(str, mError);
 
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        }
 
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        char                            mOperation[256];
 
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        const OSStatus          mError;
 
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        // -------------------------------------------------
 
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        typedef void (*WarningHandler)(const char *msg, OSStatus err);
 
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        /*static void Throw(const char *operation, OSStatus err)
 
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        {
 
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                throw CAXException(operation, err);
 
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        }*/
 
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        static char *FormatError(char *str, OSStatus error)
 
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        {
 
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                // see if it appears to be a 4-char-code
 
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                *(UInt32 *)(str + 1) = EndianU32_NtoB(error);
 
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                if (isprint(str[1]) && isprint(str[2]) && isprint(str[3]) && isprint(str[4])) {
 
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                        str[0] = str[5] = '\'';
 
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                        str[6] = '\0';
 
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                } else
 
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                        // no, format it as an integer
 
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                        sprintf(str, "%ld", error);
 
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                return str;
 
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        }
 
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        static void Warning(const char *s, OSStatus error)
 
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        {
 
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                if (sWarningHandler)
 
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                        (*sWarningHandler)(s, error);
 
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        }
 
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        static void SetWarningHandler(WarningHandler f) { sWarningHandler = f; }
 
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private:
 
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        static WarningHandler   sWarningHandler;
 
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};
 
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#if     DEBUG || CoreAudio_Debug
 
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        #define XThrowIfError(error, operation) \
 
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                do {                                                                                                                                    \
 
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                        OSStatus __err = error;                                                                                         \
 
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                        if (__err) {                                                                                                                    \
 
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                                char __buf[12];                                                                                                 \
 
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                                DebugMessageN2("error %s: %4s\n", CAXException::FormatError(__buf, __err), operation);\
 
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                                STOP;                                                                                                                   \
 
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                                throw CAXException(operation, __err);           \
 
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                        }                                                                                                                                       \
 
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                } while (0)
 
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        #define XThrowIf(condition, error, operation) \
 
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                do {                                                                                                                                    \
 
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                        if (condition) {                                                                                                        \
 
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                                OSStatus __err = error;                                                                                 \
 
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                                char __buf[12];                                                                                                 \
 
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                                DebugMessageN2("error %s: %4s\n", CAXException::FormatError(__buf, __err), operation);\
 
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                                STOP;                                                                                                                   \
 
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                                throw CAXException(operation, __err);           \
 
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                        }                                                                                                                                       \
 
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                } while (0)
 
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#else
 
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        #define XThrowIfError(error, operation) \
 
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                do {                                                                                                                                    \
 
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                        OSStatus __err = error;                                                                                         \
 
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                        if (__err) {                                                                                                                    \
 
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                                throw CAXException(operation, __err);           \
 
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                        }                                                                                                                                       \
 
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                } while (0)
 
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        #define XThrowIf(condition, error, operation) \
 
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                do {                                                                                                                                    \
 
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                        if (condition) {                                                                                                        \
 
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                                OSStatus __err = error;                                                                                 \
 
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                                throw CAXException(operation, __err);           \
 
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                        }                                                                                                                                       \
 
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                } while (0)
 
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#endif
 
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#define XThrow(error, operation) XThrowIf(true, error, operation)
 
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#define XThrowIfErr(error) XThrowIfError(error, #error)
 
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#endif // __CAXException_h__