source: trunk/Cocoa/Pester/Source/PSPowerManager.m @ 602

Last change on this file since 602 was 602, checked in by Nicholas Riley, 9 years ago

Rename variables which shadow stdlib functions (and maxSize).

File size: 2.5 KB
Line 
1//
2//  PSPowerManager.m
3//  Pester
4//
5//  Created by Nicholas Riley on Mon Dec 23 2002.
6//  Copyright (c) 2002 Nicholas Riley. All rights reserved.
7//
8
9#import "PSPowerManager.h"
10
11#import <IOKit/pwr_mgt/IOPMLib.h>
12#import <IOKit/IOMessage.h>
13
14@implementation PSPowerManager
15
16+ (BOOL)autoWakeSupported;
17{
18    // XXX imagine it's supported on all machines that support 10.4
19    return NO; // XXX temporary for 1.1b5
20}
21
22+ (void)setWakeTime:(NSDate *)wakeTime;
23{
24    IOPMSchedulePowerEvent((CFDateRef)wakeTime, (CFStringRef)[[NSBundle mainBundle] bundleIdentifier], CFSTR(kIOPMAutoWake));
25}
26
27+ (void)clearWakeTime;
28{
29    // XXX implement (IOPMCancelScheduledPowerEvent)
30}
31
32// modified from RegisterForSleep sample code
33
34- (void)_messageReceived:(natural_t)messageType withArgument:(void *)messageArgument;
35{
36    switch (messageType) {
37        case kIOMessageSystemWillSleep:
38            if ([delegate respondsToSelector: @selector(powerManagerWillDemandSleep:)]) {
39                [delegate powerManagerWillDemandSleep: self];
40                IOAllowPowerChange(root_port, (long)messageArgument);
41            }
42            break;
43        case kIOMessageCanSystemSleep:
44            if ([delegate respondsToSelector: @selector(powerManagerShouldIdleSleep:)]) {
45                if ([delegate powerManagerShouldIdleSleep: self]) {
46                    IOAllowPowerChange(root_port, (long)messageArgument);
47                } else {
48                    IOCancelPowerChange(root_port, (long)messageArgument);
49                }
50            }
51            break;
52        case kIOMessageSystemHasPoweredOn:
53            if ([delegate respondsToSelector: @selector(powerManagerDidWake:)])
54                [delegate powerManagerDidWake: self];
55            break;
56    }
57}
58
59void
60powerCallback(void *refCon, io_service_t service, natural_t messageType, void *messageArgument)
61{
62    [(PSPowerManager *)refCon _messageReceived: messageType withArgument: messageArgument];
63}
64
65- (id)initWithDelegate:(id)aDelegate;
66{
67    if ( (self = [super init]) != nil) {
68        IONotificationPortRef notificationPort;
69
70        delegate = [aDelegate retain];
71        root_port = IORegisterForSystemPower(self, &notificationPort, powerCallback, &notifier);
72        NSAssert(root_port != 0, @"IORegisterForSystemPower failed");
73
74        CFRunLoopAddSource(CFRunLoopGetCurrent(), IONotificationPortGetRunLoopSource(notificationPort), kCFRunLoopDefaultMode);
75    }
76    return self;
77}
78
79- (void)dealloc;
80{
81    IODeregisterForSystemPower(&notifier);
82    [delegate release];
83    [super dealloc];
84}
85
86@end
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