kern/147604: kqueue timer events are not deleted when associated
>Number: 147604
>Category: kern
>Synopsis: kqueue timer events are not deleted when associated descriptor is closed
>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: Mon Jun 07 00:10:02 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: James Bailie
>Release: FreeBSD 8.1-PRERELEASE amd64
>Organization:
>Environment:
System: FreeBSD localhost 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #20: Sat May 29 13:36:02 EDT 2010 root@localhost:/usr/obj/usr/src/sys/LOCAL amd64
>Description:
Timer events set with kevent() do not get deleted when the associated descriptor is
closed. If this behavior is intentional, then the manual page should be modified to
reflect this.
>How-To-Repeat:
--- test.c begins here ---
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
int main( int argc, char **argv )
{
struct kevent inqueue[ 1 ], outqueue[ 1 ];
int kq, inq;
if (( kq = kqueue()) < 0 )
{
fprintf( stderr, "kqueue(): %s", strerror( errno ));
exit( 1 );
}
inqueue[ 0 ].ident = 0;
inqueue[ 0 ].filter = EVFILT_TIMER;
inqueue[ 0 ].fflags = 0;
inqueue[ 0 ].data = 1000;
inqueue[ 0 ].flags = EV_ADD | EV_ENABLE;
inqueue[ 0 ].udata = NULL;
for( inq = 1; ; inq = 0 )
{
if ( kevent( kq, inqueue, inq, outqueue, 1, NULL ) > 0 &&
outqueue[ 0 ].filter == EVFILT_TIMER )
{
write( 1, "TIMEOUT\n", 8 );
if ( inq )
close( 0 );
}
}
}
--- test.c ends here ---
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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