Desktop/xinu_mips-1.0.2.tar/xinu_mips-1.0.2/system/freesem.c File Reference

#include <kernel.h>
#include <semaphore.h>
#include <queue.h>

Include dependency graph for freesem.c:

Go to the source code of this file.

Functions
syscall	freesem (semaphore sem)

---

Detailed Description

freesem

Id

freesem.c 226 2007-07-12 01:18:27Z mschul

Definition in file freesem.c.

---

Function Documentation

syscall freesem

(

semaphore

sem

)

freesem - deallocate a semaphore. Reset the semaphore count, releasing any processes in the waiting queue. Deallocate entry in global semaphore table.

Parameters:

sem

id of semaphore to be released

Returns:

OK on success, SYSERR on failure

Definition at line 21 of file freesem.c.

References sentry::count, dequeue(), disable(), isbadsem, nonempty, OK, sentry::queue, ready(), RESCHED_NO, restore(), semtab, SFREE, sentry::state, and SYSERR.

Referenced by test_deltaQueue(), test_procQueue(), test_semaphore(), test_semaphore2(), test_semaphore3(), and test_semaphore4().