2 * Test program to verify that scheduled timers are executed in the
5 * Copyright (C) 2013 by Open Source Routing.
6 * Copyright (C) 2013 by Internet Systems Consortium, Inc. ("ISC")
8 * This file is part of Quagga
10 * Quagga is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2, or (at your option) any
15 * Quagga is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with Quagga; see the file COPYING. If not, write to the Free
22 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
36 #define SCHEDULE_TIMERS 800
37 #define REMOVE_TIMERS 200
39 #define TIMESTR_LEN strlen("4294967296.999999")
41 struct thread_master *master;
43 static size_t log_buf_len;
44 static size_t log_buf_pos;
47 static size_t expected_buf_len;
48 static size_t expected_buf_pos;
49 static char *expected_buf;
51 static struct prng *prng;
53 static struct thread **timers;
55 static int timers_pending;
57 static void terminate_test(void)
61 if (strcmp(log_buf, expected_buf))
63 fprintf(stderr, "Expected output and received output differ.\n");
64 fprintf(stderr, "---Expected output: ---\n%s", expected_buf);
65 fprintf(stderr, "---Actual output: ---\n%s", log_buf);
70 printf("Expected output and actual output match.\n");
74 thread_master_free(master);
75 XFREE(MTYPE_TMP, log_buf);
76 XFREE(MTYPE_TMP, expected_buf);
78 XFREE(MTYPE_TMP, timers);
83 static int timer_func(struct thread *thread)
87 rv = snprintf(log_buf + log_buf_pos, log_buf_len - log_buf_pos,
88 "%s\n", (char*)thread->arg);
91 assert(log_buf_pos < log_buf_len);
92 XFREE(MTYPE_TMP, thread->arg);
101 static int cmp_timeval(const void* a, const void *b)
103 const struct timeval *ta = *(struct timeval * const *)a;
104 const struct timeval *tb = *(struct timeval * const *)b;
106 if (timercmp(ta, tb, <))
108 if (timercmp(ta, tb, >))
113 int main(int argc, char **argv)
116 struct timeval **alarms;
118 master = thread_master_create();
120 log_buf_len = SCHEDULE_TIMERS * (TIMESTR_LEN + 1) + 1;
122 log_buf = XMALLOC(MTYPE_TMP, log_buf_len);
124 expected_buf_len = SCHEDULE_TIMERS * (TIMESTR_LEN + 1) + 1;
125 expected_buf_pos = 0;
126 expected_buf = XMALLOC(MTYPE_TMP, expected_buf_len);
130 timers = XMALLOC(MTYPE_TMP, SCHEDULE_TIMERS * sizeof(*timers));
132 for (i = 0; i < SCHEDULE_TIMERS; i++)
138 /* Schedule timers to expire in 0..5 seconds */
139 interval_msec = prng_rand(prng) % 5000;
140 arg = XMALLOC(MTYPE_TMP, TIMESTR_LEN + 1);
141 timers[i] = thread_add_timer_msec(master, timer_func, arg, interval_msec);
142 ret = snprintf(arg, TIMESTR_LEN + 1, "%lld.%06lld",
143 (long long)timers[i]->u.sands.tv_sec,
144 (long long)timers[i]->u.sands.tv_usec);
146 assert((size_t)ret < TIMESTR_LEN + 1);
150 for (i = 0; i < REMOVE_TIMERS; i++)
154 index = prng_rand(prng) % SCHEDULE_TIMERS;
158 XFREE(MTYPE_TMP, timers[index]->arg);
159 thread_cancel(timers[index]);
160 timers[index] = NULL;
164 /* We create an array of pointers to the alarm times and sort
165 * that array. That sorted array is used to generate a string
166 * representing the expected "output" of the timers when they
169 alarms = XMALLOC(MTYPE_TMP, timers_pending * sizeof(*alarms));
170 for (i = 0; i < SCHEDULE_TIMERS; i++)
174 alarms[j++] = &timers[i]->u.sands;
176 qsort(alarms, j, sizeof(*alarms), cmp_timeval);
177 for (i = 0; i < j; i++)
181 ret = snprintf(expected_buf + expected_buf_pos,
182 expected_buf_len - expected_buf_pos,
184 (long long)alarms[i]->tv_sec,
185 (long long)alarms[i]->tv_usec);
187 expected_buf_pos += ret;
188 assert(expected_buf_pos < expected_buf_len);
190 XFREE(MTYPE_TMP, alarms);
192 thread_main (master);