#29474 [Csd]: Function usleep doesn't work under Windows.

ID: 29474 Updated by: wez@php.net Reported By: cucup at bol dot com dot br Status: Closed Bug Type: Unknown/Other Function Operating System: Windows 98 PHP Version: 5.0.0 New Comment: BTW: the u in usleep comes from "mu", the greek symbol used to denote microseconds, not milliseconds. usleep(500) is much shorter than 1/2 second. Previous Comments: ------------------------------------------------------------------------ [2004-08-01 02:36:33] wez@php.net Fixed this properly in CVS; the next batch of snapshots at http://snaps.php.net will contain the fix. FYI: Sleep() with fractional arguments is not real usleep(), take a look at win32/time.c for a working implementation. ------------------------------------------------------------------------ [2004-07-31 22:40:43] cucup at bol dot com dot br Description: ------------ Function usleep doesn't work under Windows. I know this is documented, but I believe PHP5 could have this function working fine... Why not? Function "sleep" isn't enough for a lot of projects. There's a bug report in version 4.xx, in wich "dror at europe dot com" reported a solution for the source code.. It could be easily implemented in official PHP5 Source. PHP_FUNCTION(usleep) { pval **num; if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &num) == FAILURE) { WRONG_PARAM_COUNT; } convert_to_long_ex(num); #### Begin modifications from original source #if HAVE_USLEEP usleep((*num)->value.lval); #elif PHP_WIN32 Sleep( ((*num)->value.lval+999)/1000); #endif #### End modifications } Reproduce code: --------------- echo "Sleeping half second:"; usleep(500); // doesn't work under windows.. :( Expected result: ---------------- Stop script execution for 1/2 second, or 500ms Actual result: -------------- Nothing happens, line is ignored. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=29474&edit=1