source: releases/Pester/1.1b4/Source/PSTimer.m@ 318

Last change on this file since 318 was 119, checked in by Nicholas Riley, 22 years ago

MoreSecurity, wakein.[hm]: Removed authenticated wake timer setting
code: it was unneeded and incomplete, but remains in case it needs to
be resurrected later.

PSPowerManager.[hm]: removed -authorize, exception, references to
MoreSecurity and wakein tool (-_execWakeToolWithRequestDictionary:).
Simplified writeDataProperty by using IOConnectSetCFProperty instead
of IOConnectSetCFProperties. Fixed logic error in override which
caused timer not to be set as needed.

PSTimer.m: Display alert panel if errors encountered while setting
wake time.

File size: 7.3 KB
Line 
1//
2// PSTimer.m
3// Pester
4//
5// Created by Nicholas Riley on Sun Jan 05 2003.
6// Copyright (c) 2003 Nicholas Riley. All rights reserved.
7//
8
9#import "PSTimer.h"
10#import "PSAlarm.h"
11#import "PSPowerManager.h"
12
13NSTimer *PSTimerCurrent = nil;
14PSTimer *PSTimerOnWake = nil;
15NSMutableArray *PSTimerAllTimers = nil;
16
17@interface PSTimer (Private)
18+ (void)_schedule;
19@end
20
21@implementation PSTimer
22
23+ (void)setUp;
24{
25 static PSPowerManager *powerManager;
26
27 if (powerManager == nil) {
28 powerManager = [[PSPowerManager alloc] initWithDelegate: self];
29 PSTimerAllTimers = [[NSMutableArray alloc] init];
30 }
31}
32
33+ (void)_schedule;
34{
35 NSDate *aboutNow = [NSDate dateWithTimeIntervalSinceNow: 0.1];
36 [PSTimerCurrent invalidate]; [PSTimerCurrent release]; PSTimerCurrent = nil;
37 PSTimerOnWake = nil;
38 if ([PSTimerAllTimers count] > 0) {
39 PSTimer *timer = nil;
40 NSEnumerator *e;
41 [PSTimerAllTimers sortUsingSelector: @selector(compare:)];
42 // NSLog(@"_schedule: timers %@", [PSTimerAllTimers description]);
43 e = [PSTimerAllTimers objectEnumerator];
44 while ( (timer = [e nextObject]) != nil) {
45 if ([timer isWakeUp]) {
46 PSTimerOnWake = timer;
47 // NSLog(@"scheduling wake timer %@", timer);
48 break;
49 }
50 }
51 e = [PSTimerAllTimers objectEnumerator];
52 while ( (timer = [e nextObject]) != nil) {
53 if ([[timer fireDate] compare: aboutNow] != NSOrderedDescending) {
54 [timer performSelector: @selector(_timerExpired) withObject: nil afterDelay: 0];
55 return;
56 } else {
57 NSTimeInterval ti = [[timer fireDate] timeIntervalSinceNow];
58 if (ti > 0.1) {
59 PSTimerCurrent = [[NSTimer scheduledTimerWithTimeInterval: ti target: timer selector: @selector(_timerExpired) userInfo: nil repeats: NO] retain];
60 // NSLog(@"setting timer: %@", PSTimerCurrent);
61 } else {
62 // NSLog(@"timer would have been too fast, setting: %@", timer);
63 [timer performSelector: @selector(_timerExpired) withObject: nil afterDelay: 0];
64 }
65 return;
66 }
67 }
68 NSAssert(NO, @"shouldn't get here");
69 } else {
70 // NSLog(@"_schedule: no timers");
71 }
72}
73
74+ (void)_timerAdded:(PSTimer *)timer;
75{
76 NSAssert1([PSTimerAllTimers indexOfObject: timer] == NSNotFound, @"PSTimerAllTimers already contains %@", timer);
77 [PSTimerAllTimers addObject: timer];
78 [self _schedule];
79}
80
81+ (void)_timerDeleted:(PSTimer *)timer;
82{
83 NSAssert1([PSTimerAllTimers indexOfObject: timer] != NSNotFound, @"PSTimerAllTimers does not contain %@", timer);
84 [PSTimerAllTimers removeObject: timer];
85 [self _schedule];
86}
87
88#pragma mark private
89
90- (void)_setFireDate:(NSDate *)date;
91{
92 if (fireDate != date) {
93 [fireDate release];
94 fireDate = [date retain];
95 if (fireDate != nil) {
96 isValid = YES;
97 }
98 }
99}
100
101- (void)_setFireDateFromInterval;
102{
103 [self _setFireDate: [NSDate dateWithTimeIntervalSinceNow: timeInterval]];
104}
105
106- (void)_invalidate;
107{
108 if (isValid) {
109 isValid = NO;
110 [[self class] _timerDeleted: self];
111 }
112}
113
114- (void)_timerExpired;
115{
116 if (!isValid) return; // in case the timer went off after we were invalidated
117 [self retain]; // make sure we’re still accessible during the invocation
118 // NSLog(@"timer expired: %@", self);
119 if (repeats) {
120 [invocation invoke];
121 if (isValid) {
122 [self _setFireDateFromInterval];
123 [[self class] _schedule];
124 // NSLog(@"timer repeats: %@", self);
125 }
126 } else {
127 [self _invalidate];
128 [invocation invoke];
129 }
130 [self release];
131}
132
133#pragma mark initialize-release
134
135- (id)initWithTimeInterval:(NSTimeInterval)ti target:(id)aTarget selector:(SEL)aSelector userInfo:(id)anObject repeats:(BOOL)yesOrNo;
136{
137 if ( (self = [self init]) != nil) {
138 invocation = [[NSInvocation invocationWithMethodSignature:
139 [aTarget methodSignatureForSelector: aSelector]] retain];
140 [invocation setSelector: aSelector];
141 [invocation setTarget: aTarget];
142 [invocation setArgument: &self atIndex: 2];
143 userInfo = [anObject retain];
144 repeats = yesOrNo;
145 timeInterval = ti;
146 // don't do this or we leak: [invocation retainArguments];
147 [aTarget retain]; // mimics retain behavior
148 [self _setFireDateFromInterval];
149 [[self class] _timerAdded: self]; // mimics runloop retention behavior
150 }
151 return self;
152}
153
154+ (PSTimer *)scheduledTimerWithTimeInterval:(NSTimeInterval)ti target:(id)aTarget selector:(SEL)aSelector userInfo:(id)anObject repeats:(BOOL)yesOrNo;
155{
156 PSTimer *timer = [[self alloc] initWithTimeInterval: ti target: aTarget selector: aSelector userInfo: anObject repeats: yesOrNo];
157 [timer release];
158 return timer;
159}
160
161- (void)dealloc;
162{
163 // NSLog(@"DEALLOC %@", self);
164 isValid = NO;
165 [fireDate release]; fireDate = nil;
166 [[invocation target] release];
167 [invocation release]; invocation = nil;
168 [userInfo release]; userInfo = nil;
169 [super dealloc];
170}
171
172#pragma mark accessing
173
174- (NSDate *)fireDate;
175{
176 return fireDate;
177}
178
179- (void)invalidate;
180{
181 repeats = NO;
182 [self _invalidate];
183}
184
185- (BOOL)isValid;
186{
187 return isValid;
188}
189
190- (id)userInfo;
191{
192 return userInfo;
193}
194
195- (BOOL)isWakeUp;
196{
197 return isWakeUp;
198}
199
200- (void)setWakeUp:(BOOL)doWake;
201{
202 isWakeUp = doWake;
203}
204
205- (NSComparisonResult)compare:(PSTimer *)other;
206{
207 return [fireDate compare: [other fireDate]];
208}
209
210- (NSString *)description;
211{
212 return [NSString stringWithFormat: @"%@: at %@ do %@ on %@", [super description], [self fireDate], NSStringFromSelector([invocation selector]), [[invocation target] class]];
213}
214
215@end
216
217@implementation PSTimer (PSPowerManagerDelegate)
218
219+ (void)_runScheduledWakeErrorPanel:(NSString *)error;
220{
221 NSRunAlertPanel(NSLocalizedString(@"Can't schedule wake from sleep", "Wake timer set failure panel title"), NSLocalizedString(@"Pester is unable to set this computer to wake up at a later date (%@)", "Wake timer set failure panel message"), NSLocalizedString(@"Sleep", "Wake timer set failure panel button"), nil, nil, error);
222}
223
224+ (BOOL)powerManagerShouldIdleSleep:(PSPowerManager *)powerManager;
225{
226 [PSTimerCurrent invalidate];
227 if (PSTimerOnWake != nil) {
228 NSDate *date = [PSTimerOnWake fireDate];
229 // NSLog(@"%lf sec remain until alarm", [date timeIntervalSinceNow]);
230 if ([date timeIntervalSinceNow] > 30) {
231 // NSLog(@"going to sleep, setting timer %@", PSTimerOnWake);
232 NS_DURING
233 [PSPowerManager setWakeTime: [[PSTimerOnWake fireDate] addTimeInterval: -15] overrideIfEarlier: NO];
234 NS_HANDLER
235 [self performSelectorOnMainThread: @selector(_runScheduledWakeErrorPanel:) withObject: [localException description] waitUntilDone: YES];
236 NS_ENDHANDLER
237 return YES;
238 } else {
239 // NSLog(@"not setting timer, will attempt to prevent idle sleep");
240 return NO;
241 }
242 }
243 return YES;
244}
245
246+ (void)powerManagerWillDemandSleep:(PSPowerManager *)powerManager;
247{
248 [self powerManagerShouldIdleSleep: powerManager];
249}
250
251+ (void)powerManagerDidWake:(PSPowerManager *)powerManager;
252{
253 if (PSTimerCurrent != nil) {
254 [self _schedule];
255 }
256}
257
258@end
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