Guardian Procedure Calls Reference Manual (G06.25+)

Guardian Procedure Calls (A-B)

Guardian Procedure Calls Reference Manual—522629-013

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BINSEM_UNLOCK_ Procedure

Summary

Syntax for C Programmers

Syntax for TAL Programmers

Parameters

Considerations

Example

Related Programming Manuals

Summary

The BINSEM_UNLOCK_ procedure unlocks a binary semaphore.

Syntax for C Programmers

Syntax for TAL Programmers

Parameters

error returned value

INT

indicates the outcome of the call:

0 No error.

4001 Cannot unlock. The

semid parameter is not locked by the calling

process. The corresponding

errno value is EPERM.

4022 Invalid parameter. The

semid parameter does not identify a binary

semaphore that is opened by the calling process. The corresponding

errno value is EINVAL.

semid input

INT (32):value

specifies a binary semaphore ID.

#include <cextdecs(BINSEM_UNLOCK_)>

short BINSEM_UNLOCK_ ( __int32_t semid );

error := BINSEM_UNLOCK_ ( semid ); ! i