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Merge pull request #54 from ringlej/feature/sem_timedwait

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Add support to fake sem_timedwait
This commit is contained in:
Wolfgang Hommel
2014-08-26 22:33:21 +02:00
parent c7d7eeb49d cac3dc732a
commit e680ca9bce
1 changed files with 48 additions and 0 deletions
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48
src/libfaketime.c
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@@ -148,6 +148,7 @@ static unsigned int (*real_sleep) (unsigned int seconds);
static unsigned int (*real_alarm) (unsigned int seconds);
static int (*real_poll) (struct pollfd *, nfds_t, int);
static int (*real_ppoll) (struct pollfd *, nfds_t, const struct timespec *, const sigset_t *);
static int (*real_sem_timedwait) (sem_t*, const struct timespec*);
#endif
#ifdef __APPLE__
static int (*real_clock_get_time) (clock_serv_t clock_serv, mach_timespec_t *cur_timeclockid_t);
@@ -929,6 +930,52 @@ int poll(struct pollfd *fds, nfds_t nfds, int timeout)
DONT_FAKE_TIME(ret = (*real_poll)(fds, nfds, timeout_real));
return ret;
}
int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
{
int result;
struct timespec real_abs_timeout, *real_abs_timeout_pt;
/* sanity check */
if (abs_timeout == NULL)
{
return -1;
}
if (NULL == real_sem_timedwait)
{ /* dlsym() failed */
#ifdef DEBUG
(void) fprintf(stderr, "faketime problem: original sem_timedwait() not found.\n");
#endif
return -1; /* propagate error to caller */
}
if (!dont_fake)
{
struct timespec tdiff, timeadj;
timespecsub(abs_timeout, &ftpl_starttime.real, &tdiff);
if (user_rate_set)
{
timespecmul(&tdiff, user_rate, &timeadj);
}
else
{
timeadj = tdiff;
}
timespecadd(&user_faked_time_timespec, &timeadj, &real_abs_timeout);
real_abs_timeout_pt = &real_abs_timeout;
}
else
{
/* cast away constness */
real_abs_timeout_pt = (struct timespec *)abs_timeout;
}
DONT_FAKE_TIME(result = (*real_sem_timedwait)(sem, real_abs_timeout_pt));
return result;
}
#endif
#ifndef __APPLE__
@@ -1424,6 +1471,7 @@ void __attribute__ ((constructor)) ftpl_init(void)
real_alarm = dlsym(RTLD_NEXT, "alarm");
real_poll = dlsym(RTLD_NEXT, "poll");
real_ppoll = dlsym(RTLD_NEXT, "ppoll");
real_sem_timedwait = dlsym(RTLD_NEXT, "sem_timedwait");
#endif
#ifdef FAKE_INTERNAL_CALLS
real___ftime = dlsym(RTLD_NEXT, "__ftime");