1/*
2 * lws-api-test-lwsac
3 *
4 * Written in 2010-2019 by Andy Green <andy@warmcat.com>
5 *
6 * This file is made available under the Creative Commons CC0 1.0
7 * Universal Public Domain Dedication.
8 */
9
10#include <libwebsockets.h>
11
12struct mytest {
13	int payload;
14	/* notice doesn't have to be at start of struct */
15	lws_list_ptr list_next;
16	/* a struct can appear on multiple lists too... */
17};
18
19/* converts a ptr to struct mytest .list_next to a ptr to struct mytest */
20#define list_to_mytest(p) lws_list_ptr_container(p, struct mytest, list_next)
21
22int main(int argc, const char **argv)
23{
24	int n, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE, acc;
25	lws_list_ptr list_head = NULL, iter;
26	struct lwsac *lwsac = NULL;
27	struct mytest *m;
28	const char *p;
29
30	if ((p = lws_cmdline_option(argc, argv, "-d")))
31		logs = atoi(p);
32
33	lws_set_log_level(logs, NULL);
34	lwsl_user("LWS API selftest: lwsac\n");
35
36	/*
37	 * 1) allocate and create 1000 struct mytest in a linked-list
38	 */
39
40	for (n = 0; n < 1000; n++) {
41		m = lwsac_use(&lwsac, sizeof(*m), 0);
42		if (!m)
43			return -1;
44		m->payload = n;
45
46		lws_list_ptr_insert(&list_head, &m->list_next, NULL);
47	}
48
49	/*
50	 * 2) report some debug info about the lwsac state... those 1000
51	 * allocations actually only required 4 mallocs
52	 */
53
54	lwsac_info(lwsac);
55
56	/* 3) iterate the list, accumulating the payloads */
57
58	acc = 0;
59	iter = list_head;
60	while (iter) {
61		m = list_to_mytest(iter);
62		acc += m->payload;
63
64		lws_list_ptr_advance(iter);
65	}
66
67	if (acc != 499500) {
68		lwsl_err("%s: FAIL acc %d\n", __func__, acc);
69
70		return 1;
71	}
72
73	/*
74	 * 4) deallocate everything (lwsac is also set to NULL).  It just
75	 *    deallocates the 4 mallocs, everything in there is gone accordingly
76	 */
77
78	lwsac_free(&lwsac);
79
80	lwsl_user("Completed: PASS\n");
81
82	return 0;
83}
84