blob: 3dd1cddd911cf607362eb8169382c12dddb90e70 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*============================================================
**
** Source: test.c
**
** Purpose: InterlockedExchange64() function
**
**
**=========================================================*/
/* This test is FINISHED. Note: The biggest feature of this function is that
it locks the value before it increments it -- in order to make it so only
one thread can access it. But, I really don't have a great test to make
sure it's thread safe. Any ideas?
*/
#include <palsuite.h>
#define START_VALUE 0
int __cdecl main(int argc, char *argv[]) {
LONGLONG TheValue = START_VALUE;
LONGLONG NewValue = 5;
LONGLONG TheReturn;
/*
* Initialize the PAL and return FAILURE if this fails
*/
if(0 != (PAL_Initialize(argc, argv)))
{
return FAIL;
}
/*
** Run only on 64 bit platforms
*/
#if defined(BIT64)
TheReturn = InterlockedExchange64(&TheValue,NewValue);
/* Compare the exchanged value with the value we exchanged it with. Should
be the same.
*/
if(TheValue != NewValue)
{
Fail("ERROR: The value which was exchanged should now be %ll, but "
"instead it is %ll.",NewValue,TheValue);
}
/* Check to make sure it returns the origional number which 'TheValue' was
set to.
*/
if(TheReturn != START_VALUE)
{
Fail("ERROR: The value returned should be the value before the "
"exchange happened, which was %ll, but %ll was returned.",
START_VALUE,TheReturn);
}
#endif // BIT64
PAL_Terminate();
return PASS;
}
|
