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/*
NSTimer.m
Copyright (C) 1995, 1996 Ovidiu Predescu and Mircea Oancea.
All rights reserved.
Author: Ovidiu Predescu <ovidiu@bx.logicnet.ro>
This file is part of libFoundation.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
We disclaim all warranties with regard to this software, including all
implied warranties of merchantability and fitness, in no event shall
we be liable for any special, indirect or consequential damages or any
damages whatsoever resulting from loss of use, data or profits, whether in
an action of contract, negligence or other tortious action, arising out of
or in connection with the use or performance of this software.
*/
#include <math.h>
#include <Foundation/NSTimer.h>
#include <Foundation/NSDate.h>
#include <Foundation/NSInvocation.h>
#include <Foundation/NSRunLoop.h>
@implementation NSTimer
+ (NSTimer*)scheduledTimerWithTimeInterval:(NSTimeInterval)seconds
invocation:(NSInvocation*)anInvocation
repeats:(BOOL)_repeats
{
id timer = [self timerWithTimeInterval:seconds
invocation:anInvocation
repeats:_repeats];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSDefaultRunLoopMode];
return timer;
}
+ (NSTimer*)scheduledTimerWithTimeInterval:(NSTimeInterval)seconds
target:(id)anObject
selector:(SEL)aSelector
userInfo:(id)anArgument
repeats:(BOOL)_repeats
{
id timer = [self timerWithTimeInterval:seconds
target:anObject
selector:aSelector
userInfo:anArgument
repeats:_repeats];
[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSDefaultRunLoopMode];
return timer;
}
+ (NSTimer*)timerWithTimeInterval:(NSTimeInterval)seconds
invocation:(NSInvocation*)anInvocation
repeats:(BOOL)_repeats
{
id timer = [[[self alloc] initWith:seconds invocation:anInvocation
userInfo:nil repeat:_repeats]
autorelease];
return timer;
}
+ (NSTimer*)timerWithTimeInterval:(NSTimeInterval)seconds
target:(id)anObject
selector:(SEL)aSelector
userInfo:(id)anArgument
repeats:(BOOL)_repeats
{
id anInvocation = [NSInvocation invocationWithMethodSignature:
[anObject methodSignatureForSelector:aSelector]];
id timer = [[[self alloc] initWith:seconds invocation:anInvocation
userInfo:anArgument repeat:_repeats]
autorelease];
[anInvocation setTarget:anObject];
[anInvocation setSelector:aSelector];
[anInvocation setArgument:&timer atIndex:2];
return timer;
}
- (void)dealloc
{
[fireDate release];
[invocation release];
[userInfo release];
[super dealloc];
}
- (void)fire
{
if(isValid)
[invocation invoke];
}
- (NSDate*)fireDate
{
if(!repeats)
return [fireDate addTimeInterval:timeInterval];
else {
NSTimeInterval ellapsedTimeSinceCreated =
- [fireDate timeIntervalSinceNow];
NSTimeInterval nextTime =
ceil(ellapsedTimeSinceCreated / timeInterval) * timeInterval;
return [fireDate addTimeInterval:nextTime];
}
}
- userInfo { return userInfo; }
- (void)invalidate { isValid = NO; }
- (BOOL)isValid { return isValid; }
- (BOOL)repeats { return repeats; }
@end
/*
* NSTimer implementation messages
*/
@implementation NSTimer(NSTimerImplementation)
- initWith:(NSTimeInterval)seconds invocation:(NSInvocation*)anInvocation
userInfo:(id)anObject repeat:(BOOL)_repeats
{
timeInterval = seconds;
fireDate = [[NSDate date] retain];
invocation = [anInvocation retain];
userInfo = [anObject retain];
repeats = _repeats;
isValid = YES;
return self;
}
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.