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
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.
Sample Code
#define INCL_DOSSEMAPHORES
#include <os2.h>
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. */
}