1--TEST--
2Test usleep() function
3--SKIPIF--
4<?php
5if (getenv("SKIP_SLOW_TESTS")) die("skip slow test");
6?>
7--FILE--
8<?php
9/* Prototype  : void usleep  ( int $micro_seconds  )
10 * Description: Delays program execution for the given number of micro seconds.
11 * Source code: ext/standard/basic_functions.c
12 */
13
14set_time_limit(20);
15
16echo "*** Testing usleep() : basic functionality ***\n";
17
18$sleeptime = 5000000; // == 5 seconds
19// Test passes if sleeps for at least 98% of specified time
20$sleeplow = $sleeptime - ($sleeptime * 2 /100);
21
22$time_start = microtime(true);
23
24// Sleep for a while
25usleep($sleeptime);
26
27$time_end = microtime(true);
28$time = ($time_end - $time_start) * 1000 * 1000;
29
30echo "Thread slept for " . $time . " micro-seconds\n";
31
32if ($time >= $sleeplow) {
33	echo "TEST PASSED\n";
34} else {
35	echo "TEST FAILED\n";
36}
37?>
38===DONE===
39--EXPECTF--
40*** Testing usleep() : basic functionality ***
41Thread slept for %f micro-seconds
42TEST PASSED
43===DONE===
44