1 /*
2 * Copyright (c) 2017-2024 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
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25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 #include <stdlib.h>
30 #include <string.h>
31 #include <unistd.h>
32 #include <assert.h>
33 #include <darwintest.h>
34 #include "skywalk_test_driver.h"
35 #include "skywalk_test_common.h"
36
37 /****************************************************************/
38
39 static int
skt_mp100noop_main(int argc,char * argv[])40 skt_mp100noop_main(int argc, char *argv[])
41 {
42 char buf[1] = { 0 };
43 assert(!strcmp(argv[3], "--child"));
44 ssize_t ret;
45
46 if ((ret = write(MPTEST_SEQ_FILENO, buf, sizeof(buf))) == -1) {
47 SKT_LOG("write fail: %s", strerror(errno));
48 return 1;
49 }
50 assert(ret == 1);
51
52 /* Wait for go signal */
53 if ((ret = read(MPTEST_SEQ_FILENO, buf, sizeof(buf))) == -1) {
54 SKT_LOG("read fail: %s", strerror(errno));
55 return 1;
56 }
57 assert(ret == 1);
58
59 return 0;
60 }
61
62 struct skywalk_mptest skt_mp100noop = {
63 "mp100noop", "test just returns true from 100 children", 0, 100, skt_mp100noop_main,
64 };
65