X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f From: "Maurice.Lombardi" Newsgroups: comp.os.msdos.djgpp Subject: sleep() ? Date: Wed, 23 Feb 2005 19:31:13 +0000 Organization: Universite Joseph Fourier - Grenoble 1 Lines: 59 Message-ID: NNTP-Posting-Host: knautie.ujf-grenoble.fr Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: rhone.ujf-grenoble.fr 1109187434 72175 152.77.56.196 (23 Feb 2005 19:37:14 GMT) X-Complaints-To: abuse AT ujf-grenoble DOT fr NNTP-Posting-Date: Wed, 23 Feb 2005 19:37:14 +0000 (UTC) User-Agent: Mozilla/5.0 (Windows; U; Win98; fr-FR; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: fr-fr, fr To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Hi all I have mistakently sent here mails intended for gpc (GNU pascal) But these mail raise a problem about DJGPP function sleep(). I translate the gpc test program in C as #include #include #include int main(void) { struct _dosdate_t curdate; struct _dostime_t curtime; struct _dosdate_t olddate = {31,12,1999,0}; struct _dostime_t oldtime = {23,59,59,50}; struct _dosdate_t before, after; _dos_gettime (&curtime); _dos_getdate (&curdate); _dos_settime (&oldtime); _dos_setdate (&olddate); _dos_getdate (&before); sleep (2); _dos_getdate (&after); curtime.second+=2; _dos_settime (&curtime); _dos_setdate (&curdate); if ((before.year==1999)&&(after.year==2000)) printf("OK\n"); else printf("failed %d %d\n",before.year,after.year); return 0; } This program succeeds always when run in bare DOS: it answers OK after a noticeable delay of 2 seconds. But if I run it into a W98se DOS windows, it answers immediately failed 1999 1999 without any noticeable delay, except sometimes, presumably when an other running process introduces the needed delay. Running under debugger (rhide) with the clock displayed from the task bar shows that the programs performs as expected, except that sleep() introduces no delay. Is this already known in djgpp ? This has little importance in the present case, which is just a test, but may cause trouble to people who have a real reason to use sleep(). Maurice -- Maurice Lombardi Laboratoire de Spectrometrie Physique, Universite Joseph Fourier de Grenoble, BP87 38402 Saint Martin d'Heres Cedex FRANCE Tel: 33 (0)4 76 51 47 51 Fax: 33 (0)4 76 63 54 95 mailto:Maurice DOT Lombardi AT ujf-grenoble DOT fr