FSH SEMSET: Difference between revisions
Created page with "This function allows an FSD to set a semaphore unconditionally. ==Syntax== FSH_SEMSET(pSem) ==Parameters== ;pSem: is the handle to the system semaphore or the long addre..." |
mNo edit summary |
||
| Line 1: | Line 1: | ||
This function allows an FSD to set a semaphore unconditionally. | This function allows an FSD to set a semaphore unconditionally. | ||
==Syntax== | ==Syntax== | ||
FSH_SEMSET(pSem) | |||
==Parameters== | ==Parameters== | ||
;pSem: is the handle to the system semaphore or the long address of the ram semaphore. | ;pSem: is the handle to the system semaphore or the long address of the ram semaphore. | ||
==Returns== | ==Returns== | ||
If no error is detected, a zero error code is returned. If an error is detected, one of the following error codes is returned: | If no error is detected, a zero error code is returned. If an error is detected, one of the following error codes is returned: | ||
*ERROR_INTERRUPT the current thread received a signal. | |||
*ERROR_INTERRUPT the current thread received a signal. | *ERROR_EXCL_SEM_ALREADY_OWNED the exclusive semaphore is already owned. | ||
*ERROR_TOO_MANY_SEM_REQUESTS there are too many semaphore requests in progress. | |||
*ERROR_EXCL_SEM_ALREADY_OWNED the exclusive semaphore is already owned. | *ERROR_PROTECTION_VIOLATION the semaphore is inaccessible. | ||
==Calling Sequence== | ==Calling Sequence== | ||
<PRE> | <PRE> | ||
| Line 21: | Line 20: | ||
void far * pSem; | void far * pSem; | ||
</PRE> | </PRE> | ||
==Remarks== | ==Remarks== | ||
FSH_SEMSET may block. | FSH_SEMSET may block. | ||
;Note: OS/2 does not validate input parameters. An FSD, therefore, should call FSH_PROBEBUF where appropriate. | ;Note: OS/2 does not validate input parameters. An FSD, therefore, should call FSH_PROBEBUF where appropriate. | ||
[[Category:IFS Interfaces]] | [[Category:IFS Interfaces]] | ||
{{DISPLAYTITLE:FSH_SEMSET}} | {{DISPLAYTITLE:FSH_SEMSET}} | ||
Latest revision as of 05:46, 20 February 2020
This function allows an FSD to set a semaphore unconditionally.
Syntax
FSH_SEMSET(pSem)
Parameters
- pSem
- is the handle to the system semaphore or the long address of the ram semaphore.
Returns
If no error is detected, a zero error code is returned. If an error is detected, one of the following error codes is returned:
- ERROR_INTERRUPT the current thread received a signal.
- ERROR_EXCL_SEM_ALREADY_OWNED the exclusive semaphore is already owned.
- ERROR_TOO_MANY_SEM_REQUESTS there are too many semaphore requests in progress.
- ERROR_PROTECTION_VIOLATION the semaphore is inaccessible.
Calling Sequence
int far pascal FSH_SEMSET(pSem) void far * pSem;
Remarks
FSH_SEMSET may block.
- Note
- OS/2 does not validate input parameters. An FSD, therefore, should call FSH_PROBEBUF where appropriate.