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
|
// SPDX-License-Identifier: LGPL-2.1
/*
* Basic test coverage for critical regions and rseq_current_cpu().
*/
#define _GNU_SOURCE
#include <assert.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include "rseq.h"
void test_cpu_pointer(void)
{
cpu_set_t affinity, test_affinity;
int i;
sched_getaffinity(0, sizeof(affinity), &affinity);
CPU_ZERO(&test_affinity);
for (i = 0; i < CPU_SETSIZE; i++) {
if (CPU_ISSET(i, &affinity)) {
int node;
CPU_SET(i, &test_affinity);
sched_setaffinity(0, sizeof(test_affinity),
&test_affinity);
assert(sched_getcpu() == i);
assert(rseq_current_cpu() == i);
assert(rseq_current_cpu_raw() == i);
assert(rseq_cpu_start() == i);
node = rseq_fallback_current_node();
assert(rseq_current_node_id() == node);
CPU_CLR(i, &test_affinity);
}
}
sched_setaffinity(0, sizeof(affinity), &affinity);
}
int main(int argc, char **argv)
{
if (rseq_register_current_thread()) {
fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
errno, strerror(errno));
goto init_thread_error;
}
printf("testing current cpu\n");
test_cpu_pointer();
if (rseq_unregister_current_thread()) {
fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
errno, strerror(errno));
goto init_thread_error;
}
return 0;
init_thread_error:
return -1;
}
|
