resurrect-memmove.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@
*/
//
// resurrect-memmove.m
// gctests
//
// Created by Blaine Garst on 4/8/09.
// Copyright 2009 Apple, Inc. All rights reserved.
//
// CONFIG open -C99 GC rdar://6767967
#import <Foundation/Foundation.h>
#import <objc/objc-auto.h>
@interface TestObject : NSObject {
@public
id deadOnes[12];
}
@end
TestObject *Alive;
int Collected;
@implementation TestObject
- init {
for (int i = 0; i < 12; ++i)
deadOnes[i] = [NSObject new];
return self;
}
- (void)finalize {
// should not croak cause it could be just a bit pattern that looks like a garbage object
objc_memmove_collectable(&Alive->deadOnes, deadOnes, 12*sizeof(id));
++Collected;
[super finalize];
}
@end
void doTest() {
Alive = [TestObject new];
for (int i = 0; i < 1000; ++i)
[TestObject new];
[[NSGarbageCollector defaultCollector] collectIfNeeded];
[[NSGarbageCollector defaultCollector] collectExhaustively];
}
int main(int argc, char *argv[]) {
doTest();
if (Collected == 0) {
printf("**** did not collect anything!\n");
return 1;
}
printf(" return 0;
}