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>

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syscall wait (semaphore sem)

Detailed Description


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

Definition in file wait.c.

Function Documentation

syscall wait ( semaphore  sem  ) 

wait - make current process wait on a semaphore

sem semaphore for which to wait
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().

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