1// SPDX-License-Identifier: GPL-2.0
 2#include <test_progs.h>
 3#include <network_helpers.h>
 4
 5static void *spin_lock_thread(void *arg)
 6{
 7	__u32 duration, retval;
 8	int err, prog_fd = *(u32 *) arg;
 9
10	err = bpf_prog_test_run(prog_fd, 10000, &pkt_v4, sizeof(pkt_v4),
11				NULL, NULL, &retval, &duration);
12	CHECK(err || retval, "",
13	      "err %d errno %d retval %d duration %d\n",
14	      err, errno, retval, duration);
15	pthread_exit(arg);
16}
17
18void test_spinlock(void)
19{
20	const char *file = "./test_spin_lock.o";
21	pthread_t thread_id[4];
22	struct bpf_object *obj = NULL;
23	int prog_fd;
24	int err = 0, i;
25	void *ret;
26
27	err = bpf_prog_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
28	if (CHECK_FAIL(err)) {
29		printf("test_spin_lock:bpf_prog_load errno %d\n", errno);
30		goto close_prog;
31	}
32	for (i = 0; i < 4; i++)
33		if (CHECK_FAIL(pthread_create(&thread_id[i], NULL,
34					      &spin_lock_thread, &prog_fd)))
35			goto close_prog;
36
37	for (i = 0; i < 4; i++)
38		if (CHECK_FAIL(pthread_join(thread_id[i], &ret) ||
39			       ret != (void *)&prog_fd))
40			goto close_prog;
41close_prog:
42	bpf_object__close(obj);
43}