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

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

Include dependency graph for wait.c:

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Functions
syscall	wait (semaphore sem)

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Detailed Description

wait

Id

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

Definition in file wait.c.

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Function Documentation

syscall wait

(

semaphore

sem

)

wait - make current process wait on a semaphore

Parameters:

sem

semaphore for which to wait

Returns:

OK on success, SYSERR on failure

Definition at line 19 of file wait.c.

References sentry::count, currpid, disable(), enqueue(), isbadsem, OK, proctab, PRWAIT, sentry::queue, resched(), restore(), pentry::sem, semtab, pentry::state, and SYSERR.

Referenced by test_semWaiter(), uartRead(), and uartWrite().