/*
* Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <errno.h>
#import "OFCondition.h"
#import "OFDate.h"
#import "OFConditionBroadcastFailedException.h"
#import "OFConditionSignalFailedException.h"
#import "OFConditionStillWaitingException.h"
#import "OFConditionWaitFailedException.h"
#import "OFInitializationFailedException.h"
@implementation OFCondition
+ (instancetype)condition
{
return [[[self alloc] init] autorelease];
}
- (instancetype)init
{
self = [super init];
if (of_condition_new(&_condition) != 0) {
Class c = self.class;
[self release];
@throw [OFInitializationFailedException exceptionWithClass: c];
}
_conditionInitialized = true;
return self;
}
- (void)dealloc
{
if (_conditionInitialized) {
int error = of_condition_free(&_condition);
if (error != 0) {
OF_ENSURE(error == EBUSY);
@throw [OFConditionStillWaitingException
exceptionWithCondition: self];
}
}
[super dealloc];
}
- (void)wait
{
int error = of_condition_wait(&_condition, &_mutex);
if (error != 0)
@throw [OFConditionWaitFailedException
exceptionWithCondition: self
errNo: error];
}
#ifdef OF_AMIGAOS
- (void)waitForConditionOrExecSignal: (ULONG *)signalMask
{
int error = of_condition_wait_or_signal(&_condition, &_mutex,
signalMask);
if (error != 0)
@throw [OFConditionWaitFailedException
exceptionWithCondition: self
errNo: error];
}
#endif
- (bool)waitForTimeInterval: (of_time_interval_t)timeInterval
{
int error = of_condition_timed_wait(&_condition, &_mutex, timeInterval);
if (error == ETIMEDOUT)
return false;
if (error != 0)
@throw [OFConditionWaitFailedException
exceptionWithCondition: self
errNo: error];
return true;
}
#ifdef OF_AMIGAOS
- (bool)waitForTimeInterval: (of_time_interval_t)timeInterval
orExecSignal: (ULONG *)signalMask
{
int error = of_condition_timed_wait_or_signal(&_condition, &_mutex,
timeInterval, signalMask);
if (error == ETIMEDOUT)
return false;
if (error != 0)
@throw [OFConditionWaitFailedException
exceptionWithCondition: self
errNo: error];
return true;
}
#endif
- (bool)waitUntilDate: (OFDate *)date
{
return [self waitForTimeInterval: date.timeIntervalSinceNow];
}
#ifdef OF_AMIGAOS
- (bool)waitUntilDate: (OFDate *)date
orExecSignal: (ULONG *)signalMask
{
return [self waitForTimeInterval: date.timeIntervalSinceNow
orExecSignal: signalMask];
}
#endif
- (void)signal
{
int error = of_condition_signal(&_condition);
if (error != 0)
@throw [OFConditionSignalFailedException
exceptionWithCondition: self
errNo: error];
}
- (void)broadcast
{
int error = of_condition_broadcast(&_condition);
if (error != 0)
@throw [OFConditionBroadcastFailedException
exceptionWithCondition: self
errNo: error];
}
@end