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Diffstat (limited to 'libs/appleutility/CoreAudio105/CAXException.h')
| -rw-r--r-- | libs/appleutility/CoreAudio105/CAXException.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio105/CAXException.h b/libs/appleutility/CoreAudio105/CAXException.h new file mode 100644 index 0000000000..b27f833805 --- /dev/null +++ b/libs/appleutility/CoreAudio105/CAXException.h @@ -0,0 +1,158 @@ +/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved. + + Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. + ("Apple") in consideration of your agreement to the following terms, and your + use, installation, modification or redistribution of this Apple software + constitutes acceptance of these terms. If you do not agree with these terms, + please do not use, install, modify or redistribute this Apple software. + + In consideration of your agreement to abide by the following terms, and subject + to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs + copyrights in this original Apple software (the "Apple Software"), to use, + reproduce, modify and redistribute the Apple Software, with or without + modifications, in source and/or binary forms; provided that if you redistribute + the Apple Software in its entirety and without modifications, you must retain + this notice and the following text and disclaimers in all such redistributions of + the Apple Software. Neither the name, trademarks, service marks or logos of + Apple Computer, Inc. may be used to endorse or promote products derived from the + Apple Software without specific prior written permission from Apple. Except as + expressly stated in this notice, no other rights or licenses, express or implied, + are granted by Apple herein, including but not limited to any patent rights that + may be infringed by your derivative works or by other works in which the Apple + Software may be incorporated. + + The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO + WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED + WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN + COMBINATION WITH YOUR PRODUCTS. + + IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION + OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT + (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN + ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/*============================================================================= + CAXException.h + +=============================================================================*/ + +#ifndef __CAXException_h__ +#define __CAXException_h__ + +#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__) + #include <CoreServices/CoreServices.h> +#else + #include <ConditionalMacros.h> + #include <CoreServices.h> +#endif +#include "CADebugMacros.h" +#include <ctype.h> +#include <stdio.h> +#include <string.h> + +// An extended exception class that includes the name of the failed operation +class CAXException { +public: + CAXException(const char *operation, OSStatus err) : + mError(err) + { + if (operation == NULL) + mOperation[0] = '\0'; + else if (strlen(operation) >= sizeof(mOperation)) { + memcpy(mOperation, operation, sizeof(mOperation) - 1); + mOperation[sizeof(mOperation) - 1] = '\0'; + } else + strcpy(mOperation, operation); + } + + char *FormatError(char *str) const + { + return FormatError(str, mError); + } + + char mOperation[256]; + const OSStatus mError; + + // ------------------------------------------------- + + typedef void (*WarningHandler)(const char *msg, OSStatus err); + + /*static void Throw(const char *operation, OSStatus err) + { + throw CAXException(operation, err); + }*/ + + static char *FormatError(char *str, OSStatus error) + { + // see if it appears to be a 4-char-code + *(UInt32 *)(str + 1) = EndianU32_NtoB(error); + if (isprint(str[1]) && isprint(str[2]) && isprint(str[3]) && isprint(str[4])) { + str[0] = str[5] = '\''; + str[6] = '\0'; + } else + // no, format it as an integer + sprintf(str, "%ld", error); + return str; + } + + static void Warning(const char *s, OSStatus error) + { + if (sWarningHandler) + (*sWarningHandler)(s, error); + } + + static void SetWarningHandler(WarningHandler f) { sWarningHandler = f; } +private: + static WarningHandler sWarningHandler; +}; + +#if DEBUG || CoreAudio_Debug + #define XThrowIfError(error, operation) \ + do { \ + OSStatus __err = error; \ + if (__err) { \ + char __buf[12]; \ + DebugMessageN2("error %s: %4s\n", CAXException::FormatError(__buf, __err), operation);\ + STOP; \ + throw CAXException(operation, __err); \ + } \ + } while (0) + + #define XThrowIf(condition, error, operation) \ + do { \ + if (condition) { \ + OSStatus __err = error; \ + char __buf[12]; \ + DebugMessageN2("error %s: %4s\n", CAXException::FormatError(__buf, __err), operation);\ + STOP; \ + throw CAXException(operation, __err); \ + } \ + } while (0) + +#else + #define XThrowIfError(error, operation) \ + do { \ + OSStatus __err = error; \ + if (__err) { \ + throw CAXException(operation, __err); \ + } \ + } while (0) + + #define XThrowIf(condition, error, operation) \ + do { \ + if (condition) { \ + OSStatus __err = error; \ + throw CAXException(operation, __err); \ + } \ + } while (0) + +#endif + +#define XThrow(error, operation) XThrowIf(true, error, operation) +#define XThrowIfErr(error) XThrowIfError(error, #error) + +#endif // __CAXException_h__ |