jixin_new/shiku_im/audioRecorder/SNFCoreAudioUtils.c

//
//  SNFCoreAudioUtils.c
//  VTMAUGraphDemo
//
//  Created by Chris Adamson on 11/8/11.
//  Copyright (c) 2011 Subsequently and Furthermore, Inc. All rights reserved.
//

#include <stdio.h>
#include "SNFCoreAudioUtils.h"

// generic error handler - if err is nonzero, prints error message and exits program.
void CheckError(OSStatus error, const char *operation) {
	if (error == noErr) return;
	
	char str[20];
	// see if it appears to be a 4-char-code
	*(UInt32 *)(str + 1) = CFSwapInt32HostToBig(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, "%d", (int)error);
	
	fprintf(stderr, "Error: %s (%s)\n", operation, str);
	
	//exit(1);
}