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1 //
2 //                     The LLVM Compiler Infrastructure
3 //
4 // This file is distributed under the University of Illinois Open Source
5 // License. See LICENSE.TXT for details.
6 
7 /*
8  *  objectRRGC.c
9  *  testObjects
10  *
11  *  Created by Blaine Garst on 10/31/08.
12  *
13  * Test that the runtime honors the new callouts properly for retain/release and GC
14  * CON FIG C  rdar://6175959
15  */
16 
17 
18 
19 #include <stdio.h>
20 #include <Block_private.h>
21 
22 
23 int AssignCalled = 0;
24 int DisposeCalled = 0;
25 
26 // local copy instead of libSystem.B.dylib copy
_Block_object_assign(void * destAddr,const void * object,const int isWeak)27 void _Block_object_assign(void *destAddr, const void *object, const int isWeak) {
28     //printf("_Block_object_assign(%p, %p, %d) called\n", destAddr, object, isWeak);
29     AssignCalled = 1;
30 }
31 
_Block_object_dispose(const void * object,const int isWeak)32 void _Block_object_dispose(const void *object, const int isWeak) {
33     //printf("_Block_object_dispose(%p, %d) called\n", object, isWeak);
34     DisposeCalled = 1;
35 }
36 
37 struct MyStruct {
38     long isa;
39     long field;
40 };
41 
42 typedef struct MyStruct *__attribute__((NSObject)) MyStruct_t;
43 
main(int argc,char * argv[])44 int main(int argc, char *argv[]) {
45     // create a block
46     struct MyStruct X;
47     MyStruct_t xp = (MyStruct_t)&X;
48     xp->field = 10;
49     void (^myBlock)(void) = ^{ printf("field is %ld\n", xp->field); };
50     // should be a copy helper generated with a calls to above routines
51     // Lets find out!
52     struct Block_layout *bl = (struct Block_layout *)(void *)myBlock;
53     if ((bl->flags & BLOCK_HAS_DESCRIPTOR) != BLOCK_HAS_DESCRIPTOR) {
54         printf("using old runtime layout!\n");
55         return 1;
56     }
57     if ((bl->flags & BLOCK_HAS_COPY_DISPOSE) != BLOCK_HAS_COPY_DISPOSE) {
58         printf("no copy dispose!!!!\n");
59         return 1;
60     }
61     // call helper routines directly.  These will, in turn, we hope, call the stubs above
62     long destBuffer[256];
63     //printf("destbuffer is at %p, block at %p\n", destBuffer, (void *)bl);
64     //printf("dump is %s\n", _Block_dump(myBlock));
65     bl->descriptor->copy(destBuffer, bl);
66     bl->descriptor->dispose(bl);
67     if (AssignCalled == 0) {
68         printf("did not call assign helper!\n");
69         return 1;
70     }
71     if (DisposeCalled == 0) {
72         printf("did not call dispose helper\n");
73         return 1;
74     }
75     printf("%s: Success!\n", argv[0]);
76     return 0;
77 }
78