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Fixed the sem test to work on systems with semtimedop.

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2414
This commit is contained in:
Tom Hughes 2004-06-14 12:33:43 +00:00
parent f89b31fc98
commit d9d4e91c04
2 changed files with 51 additions and 1 deletions
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2
configure.in
View File

@ -345,7 +345,7 @@ AC_FUNC_MEMCMP
AC_FUNC_MMAP
AC_TYPE_SIGNAL
AC_CHECK_FUNCS([floor memchr memset mkdir strchr strdup strpbrk strrchr strstr])
AC_CHECK_FUNCS([floor memchr memset mkdir strchr strdup strpbrk strrchr strstr semtimedop])
AC_OUTPUT(
Makefile

50
none/tests/sem.c
View File

@ -6,6 +6,56 @@
#include <sys/ipc.h>
#include <sys/sem.h>
#ifndef HAVE_SEMTIMEDOP
#include <signal.h>
#include <sys/time.h>
static int semtimedop(int semid, struct sembuf *sops, unsigned nsops,
struct timespec *timeout)
{
struct sigaction act;
struct sigaction oldact;
struct itimerval itv;
int rv;
act.sa_handler = SIG_IGN;
sigemptyset( &act.sa_mask );
act.sa_flags = 0;
if (sigaction(SIGALRM, &act, &oldact) < 0)
{
perror("sigaction");
exit(1);
}
itv.it_interval.tv_sec = 0;
itv.it_interval.tv_usec = 0;
itv.it_value.tv_sec = timeout->tv_sec;
itv.it_value.tv_usec = timeout->tv_nsec / 1000;
if (setitimer(ITIMER_REAL, &itv, NULL) < 0)
{
perror("setitimer");
exit(1);
}
if ((rv = semop(semid, sops, nsops)) < 0 && errno == EINTR)
{
errno = EAGAIN;
}
if (sigaction(SIGALRM, &oldact, NULL) < 0)
{
perror("sigaction");
exit(1);
}
return rv;
}
#endif
int main(int argc, char **argv)
{
int semid;