/*
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* Root.m
*
* Reference-counted Object class.
* This is used as the superclass for all lookupd objects.
*
* Written by Marc Majka
*/
#import "Root.h"
#import <string.h>
#import <stdlib.h>
#import <NetInfo/dsutil.h>
extern void spin_unlock(int *p);
extern void spin_lock(int *p);
static int classRefCount = 0;
static id watchdog = nil;
#import "MemoryWatchdog.h"
//#define _ALLOC_DEBUG_
//#define _RETAIN_DEBUG_
//#define _INIT_DEBUG_
//#define _DEALLOC_DEBUG_
@implementation Root
+ (id)retain
{
classRefCount++;
return self;
}
+ (void)release;
{
classRefCount--;
}
+ (void)setWatchdog:(id)rover
{
watchdog = rover;
}
+ (id)alloc
{
id obj;
obj = [super alloc];
#ifdef _ALLOC_DEBUG_
fprintf(stderr, "+alloc 0x#endif
return obj;
}
- (Root *)init
{
char str[128];
[super init];
rootLock = 0;
refCount = 1;
sprintf(str, "#ifdef _INIT_DEBUG_
fprintf(stderr, "-init 0x#endif
banner = copyString(str);
if (watchdog != nil) [watchdog addObject:self];
return self;
}
- (unsigned int)refCount
{
return refCount;
}
- (unsigned int)retainCount
{
return refCount;
}
- (id)retain
{
spin_lock(&rootLock);
refCount++;
spin_unlock(&rootLock);
#ifdef _RETAIN_DEBUG_
fprintf(stderr, "-retain 0x if (banner != NULL) fprintf(stderr, " fprintf(stderr, "\n");
#endif
return self;
}
- (void)release
{
BOOL pleaseReleaseMe = NO;
BOOL callOffTheDog = NO;
spin_lock(&rootLock);
refCount--;
if ((watchdog != nil) && (refCount == 1)) callOffTheDog = YES;
else if (refCount == 0) pleaseReleaseMe = YES;
spin_unlock(&rootLock);
#ifdef _RETAIN_DEBUG_
fprintf(stderr, "-release 0x if (banner != NULL) fprintf(stderr, " fprintf(stderr, "\n");
#endif
if (callOffTheDog) [watchdog removeObject:self];
if (pleaseReleaseMe)
{
#ifdef _RETAIN_DEBUG_
fprintf(stderr, "-release -> dealloc 0x#endif
[self dealloc];
#ifdef _RETAIN_DEBUG_
fprintf(stderr, "-release <- dealloc 0x#endif
}
}
- (void)dealloc
{
#ifdef _DEALLOC_DEBUG_
fprintf(stderr, "-dealloc 0x if (banner != NULL) fprintf(stderr, " fprintf(stderr, "\n");
#endif
if (banner != NULL) free(banner);
rootLock = 0xdeadbeef;
refCount = 0xdeadbeef;
banner = (char *)0xdeadbeef;
[super free];
}
- (void)setBanner:(char *)str
{
if (banner != NULL) freeString(banner);
banner = NULL;
if (str != NULL) banner = copyString(str);
}
- (char *)banner
{
return banner;
}
- (void)print
{
[self print:stdout];
}
- (void)print:(FILE *)f
{
if (banner == NULL) fprintf(f, " else fprintf(f, "}
+ (void)print
{
[self print:stdout];
}
+ (void)print:(FILE *)f
{
fprintf(f, "Class }
- (unsigned int)memorySize
{
if (banner == NULL) return 12;
return (13 + strlen(banner));
}
@end