Date: Tue, 5 Dec 2000 13:36:21 -0800 (PST) From: jonathan@graehl.org To: freebsd-gnats-submit@FreeBSD.org Subject: kern/23304: POSIX clock_gettime, clock_getres return errno invalid argument for CLOCK_PROF and CLOCK_VIRTUAL Message-ID: <200012052136.eB5LaL936493@freefall.freebsd.org> Resent-Message-ID: <200012052140.eB5Le5236971@freefall.freebsd.org>
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>Number: 23304
>Category: kern
>Synopsis: POSIX clock_gettime, clock_getres return errno invalid argument for CLOCK_PROF and CLOCK_VIRTUAL
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Dec 05 13:40:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Jonathan Graehl
>Release: 4.2-STABLE
>Organization:
>Environment:
FreeBSD 3jane 4.2-STABLE FreeBSD 4.2-STABLE #0: Sat Dec 2 14:46:10 PST 2000 root@3jane:/ext/obj/usr/src/sys/NEWJANE i386
>Description:
While there is no problem with CLOCK_REALTIME, POSIX clock_gettime, clock_getres return errno invalid argument for CLOCK_PROF and CLOCK_VIRTUAL, which are documented in the man pages (section 2) as being user+system and user time, respectively.
>How-To-Repeat:
/* demonstrates that the clock_get... calls succed for CLOCK_REALTIME but fail for CLOCK_PROF and CLOCK_VIRTUAL */
#include <sys/time.h>
#include <stdio.h>
int main() {
struct timespec t;
puts("CLOCK_PROF");
if (clock_gettime(CLOCK_PROF, &t))
perror(NULL);
if (clock_getres(CLOCK_PROF, &t))
perror(NULL);
puts("\nCLOCK_VIRTUAL");
if (clock_gettime(CLOCK_VIRTUAL, &t))
perror(NULL);
if (clock_getres(CLOCK_VIRTUAL, &t))
perror(NULL);
puts("\nCLOCK_REALTIME");
if (clock_gettime(CLOCK_REALTIME, &t))
perror(NULL);
if (clock_getres(CLOCK_REALTIME, &t))
perror(NULL);
}
>Fix:
Immediate fix: remove mention of CLOCK_VIRTUAL AND CLOCK_PROF from sys/time.h and man 2 clock_gettime
Real fix: implement the documented POSIX functionality
>Release-Note:
>Audit-Trail:
>Unformatted:
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