BOOL OMuxWaitSem::queryMuxWaitSem(PULONG num,
PSEMRECORD semArray,
PULONG attributes)
{
muxwaitState = DosQueryMuxWaitSem(hmux, num, semArray, attributes);
return(muxwaitState == 0);
}
int main(VOID) {
HMUX hmuxHandAny = NULLHANDLE; /* Muxwaithandle */
HEV hev[2] = {0}; /* Event semaphores */
SEMRECORD apsr[2] = {{0}}; /* Semaphore records */
SEMRECORD semrecQuery[2] = {{0}}; /* Pointer from query */
ULONG cQueryRec = 2; /* Number of records found by query */
ULONG fQueryFlags = 0; /* Attribute flags returned by query */
APIRET rc = NO_ERROR; /* Return code */
ULONG ulLoop = 0; /* Loop count */
ULONG ulSem = 0;
for (ulLoop = 0; ulLoop < 2; ulLoop++) {
rc = DosCreateEventSem((PSZ) NULL, &hev[ulLoop], 0, FALSE);
if (rc != NO_ERROR) {
printf("DosCreateEventSem error: return code = %u\n", rc);
return 1;
}
apsr[ulLoop].hsemCur = (HSEM) hev[ulLoop],
apsr[ulLoop].ulUser = 0;
} /* endfor */
rc = DosCreateMuxWaitSem((PSZ) NULL, &hmuxHandAny, 2L, apsr, DCMW_WAIT_ANY);
if (rc != NO_ERROR) {
printf("DosCreateMuxWaitSem error: return code = %u\n", rc);
return 1;
}
/* Query information about the MuxWait semaphore */
rc = DosQueryMuxWaitSem(hmuxHandAny, /* Semaphore handle */
&cQueryRec, /* Number of records */
(PSEMRECORD) semrecQuery, /* Pointer to Semrecords */
&fQueryFlags); /* Flags returned */
if (rc != NO_ERROR) {
printf("DosQueryMuxWaitSem error: return code = %u\n", rc);
return 1;
} else {
printf("DosQueryMuxWaitSem found %u semaphore records\n", cQueryRec);
} /* endif */
return NO_ERROR;
}
