44 lines
606 B
Objective-C
44 lines
606 B
Objective-C
//
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// Semaphore.m
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// Cog
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//
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// Created by Vincent Spader on 8/2/05.
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// Copyright 2005 Vincent Spader. All rights reserved.
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//
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#import "Semaphore.h"
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@implementation Semaphore
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-(id)init
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{
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self = [super init];
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if (self)
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{
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semaphore_create(mach_task_self(), &semaphore, SYNC_POLICY_FIFO, 0);
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}
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return self;
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}
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-(void)signal
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{
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semaphore_signal_all(semaphore);
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}
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-(void)timedWait:(int)seconds
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{
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mach_timespec_t timeout = {seconds, 0};
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semaphore_timedwait(semaphore, timeout);
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}
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-(void)wait
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{
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mach_timespec_t t = {2.0, 0.0}; //2 second timeout
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semaphore_timedwait(semaphore, t);
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}
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@end
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