DosCloseMuxWaitSem
DosCloseMuxWaitSem decrements the usage count of a specified MuxWait semaphore. If the usage count of the semaphore reaches zero, the system frees the MuxWait semaphore resources.
Syntax
rc = DosCloseMuxWaitSem( hmuxSemaphore );
Parameters
- HMUX hmuxSemaphore (input)
- The handle of the MuxWait semaphore to be closed.
Returns
APIRET rc
The following values can be returned
| 0 | NO_ERROR | Operation was
successful. |
| 6 | ERROR_INVALID_HANDLE | Error, The value in hmuxSemaphore does not point to a valid
semaphore |
| 301 | ERROR_SEM_BUSY | Error,
Another thread is currently blocking on this MuxWait semaphore. |
Include Info
#define INCL_DOSSEMAPHORES #include <os2.h>
Sample Code
#define INCL_DOSSEMAPHORES
#include
HMUX hmuxMySemaphore; /* MySemaphore handle */
/* access is gained to the semaphore in question */
/* either by DosCreateMuxWaitSem ... */
/* ... or by DosOpenMuxWaitSem */
/* its handle is placed in hmuxMySemaphore */
rc = DosCloseMuxWaitSem(hmuxMySemaphore);
if (rc != 0)
{
/* We got an error to take care of. */
}