threadedresurrection.m [plain text]
/*
* Copyright (c) 2009 Apple Inc. All rights reserved.
*
* @APPLE_APACHE_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @APPLE_APACHE_LICENSE_HEADER_END@
*/
//
// threadedresurrection.m
// gctests
//
// Created by Blaine Garst on 10/20/08.
// Copyright 2008 Apple. All rights reserved.
//
// CONFIG open GC -C99 runtime: auto_zone_resurrection_error
#import <Foundation/Foundation.h>
#import <pthread.h>
#import <objc/objc-auto.h>
NSMutableSet *GlobalSet = nil;
bool useThread = false;
int Allocated = 0;
int Reclaimed = 0;
void *helper(void *arg) {
objc_registerThreadWithCollector();
[GlobalSet addObject:(id)arg];
// do some mythical processing
[GlobalSet removeObject:(id)arg];
objc_unregisterThreadWithCollector();
return arg;
}
@interface TestObject : NSObject
@end
@implementation TestObject : NSObject
- init {
self = [super init];
++Allocated;
return self;
}
- (void)finalize {
++Reclaimed;
if (!useThread) {
helper(self);
[super finalize];
return;
}
pthread_t pthread;
pthread_create(&pthread, NULL, helper, self);
pthread_join(pthread, NULL);
[super finalize];
}
@end
void doTest(bool doCheat) {
useThread = doCheat;
TestObject *to = [[TestObject alloc] init];
to = nil;
for (int i = 0; i < 300; ++i)
[NSObject new]; // give TLC something to do;
// make sure
[[NSGarbageCollector defaultCollector] collectIfNeeded];
[[NSGarbageCollector defaultCollector] collectExhaustively];
}
int main(int argc, char *argv[]) {
GlobalSet = [NSMutableSet new];
//printf("will use thread...\n");
doTest(true);
//printf("will do on collector thread...\n");
doTest(false);
printf(" printf(" return 0;
}