resurrect_memcpy_ok.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@
*/
#import <Foundation/Foundation.h>
#import <objc/objc-auto.h>
// CONFIG open GC -C99
// store thread local and global objects into dead ivar, verify no resurrection warning
@interface TestObject : NSObject {
@public
id string;
id object;
bool isGlobal;
}
- (void)makeGlobal;
@end
TestObject *global;
int localDidFinalize = 0;
int globalDidFinalize = 0;
int Errors;
@implementation TestObject
- init {
object = [[NSObject alloc] init];
return self;
}
- (void)finalize {
if (isGlobal) {
static int counter = 0;
if (counter++ == 0) {
if (!objc_is_finalized(object)) {
printf("inner object not garbage, can't do test\n");
exit(1);
}
objc_memmove_collectable(&string, &self->object, sizeof(void *));
globalDidFinalize = 1;
}
}
else {
static int counter = 0;
if (counter++ == 0) {
if (!objc_is_finalized(object)) {
printf("inner object not garbage, can't do test\n");
exit(1);
}
objc_memmove_collectable(&string, &self->object, sizeof(void *));
localDidFinalize = 1;
}
}
[super finalize];
}
- (void)makeGlobal {
[[NSGarbageCollector defaultCollector] disableCollectorForPointer:self];
[[NSGarbageCollector defaultCollector] enableCollectorForPointer:self];
isGlobal = true;
}
@end
int main(int argc, char *argv[]) {
global = [[TestObject alloc] init];
for (int i = 0; i < 101; ++i) [[TestObject alloc] init];
[[NSGarbageCollector defaultCollector] collectIfNeeded];
if (localDidFinalize == 0) {
printf(" ++Errors;
}
for (int i = 0; i < 101; ++i) [[[TestObject alloc] init] makeGlobal];
[[NSGarbageCollector defaultCollector] collectExhaustively];
if (globalDidFinalize == 0) {
printf(" ++Errors;
}
if (Errors == 0) {
printf(" }
return Errors;
}