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

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

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Functions
syscall	signaln (semaphore sem, short count)

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Detailed Description

signaln

Id

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

Definition in file signaln.c.

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Function Documentation

syscall signaln	(	semaphore	sem,
		short	count
	)

signaln - signal a semaphore n times, releasing n waiting processes, non-blocking

Parameters:

	sem	id of semaphore to signal
	count	number of times to signal

Returns:

OK on success, SYSERR on failure

Definition at line 20 of file signaln.c.

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

Referenced by uartIntr().