882     sem_t               *Sem;  in AcpiOsCreateSemaphore()  local
898         Sem = sem_open (SemaphoreName, O_EXCL|O_CREAT, 0755, InitialUnits);  in AcpiOsCreateSemaphore()
899         if (!Sem)  in AcpiOsCreateSemaphore()
907     Sem = AcpiOsAllocate (sizeof (sem_t));  in AcpiOsCreateSemaphore()
908     if (!Sem)  in AcpiOsCreateSemaphore()
913     if (sem_init (Sem, 0, InitialUnits) == -1)  in AcpiOsCreateSemaphore()
915         AcpiOsFree (Sem);  in AcpiOsCreateSemaphore()
920     *OutHandle = (ACPI_HANDLE) Sem;  in AcpiOsCreateSemaphore()
941     sem_t               *Sem = (sem_t *) Handle;  in AcpiOsDeleteSemaphore()  local
944     if (!Sem)  in AcpiOsDeleteSemaphore()
950     if (sem_close (Sem) == -1)  in AcpiOsDeleteSemaphore()
955     if (sem_destroy (Sem) == -1)  in AcpiOsDeleteSemaphore()
986     sem_t               *Sem = (sem_t *) Handle;  in AcpiOsWaitSemaphore()  local
993     if (!Sem)  in AcpiOsWaitSemaphore()
1009         if (sem_trywait(Sem) == -1)  in AcpiOsWaitSemaphore()
1019         while (((RetVal = sem_wait (Sem)) == -1) && (errno == EINTR))  in AcpiOsWaitSemaphore()
1041             if (sem_trywait (Sem) == 0)  in AcpiOsWaitSemaphore()
1081         while (((RetVal = sem_timedwait (Sem, &Time)) == -1) && (errno == EINTR))  in AcpiOsWaitSemaphore()
1121     sem_t               *Sem = (sem_t *)Handle;  in AcpiOsSignalSemaphore()  local
1124     if (!Sem)  in AcpiOsSignalSemaphore()
1129     if (sem_post (Sem) == -1)  in AcpiOsSignalSemaphore()