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Image ratelimiting / debouncing #20

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Image ratelimiting / debouncing #20

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45 changes: 42 additions & 3 deletions memoryio/memoryio/TSAppDelegate.m
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,7 @@ - (IBAction)aboutAction:(id)sender

- (IBAction)forceAction:(id)sender
{
[self takePhotoWithDelay:2.0f];
[self takeBlockedImage];
}

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
Expand Down Expand Up @@ -251,6 +251,7 @@ - (void) messageReceived:(natural_t)messageType withArgument:(void *)messageArgu
case kIOMessageDeviceHasPoweredOn :
// mainly for when the display goesto sleep and wakes up
NSLog(@"messageReceived: got a kIOMessageDeviceHasPoweredOn - device powered on");
[self takeBlockedImage];
break;
case kIOMessageSystemWillSleep:
IOAllowPowerChange(root_port,(long)messageArgument);
Expand All @@ -261,7 +262,7 @@ - (void) messageReceived:(natural_t)messageType withArgument:(void *)messageArgu
case kIOMessageSystemHasPoweredOn:
// mainly for when the system goes to sleep and wakes up
NSLog(@"messageReceived: got a kIOMessageSystemHasPoweredOn - system powered on");
[self takePhotoWithDelay:2.0f];
[self takeBlockedImage];
break;
}
}
Expand Down Expand Up @@ -323,4 +324,42 @@ - (void) takePhotoWithDelay: (float) delay {

}

@end

// Block image taking
// F these new-school selectors and mutable associated directories. Let's do this 1997 javascript style..
// set a timer. If it tries to call again too fast, then drop the request. Sync setting a timer.
// Timer is a thread, so the sync will unlock and all is well.
BOOL imageBlocked = NO;
NSTimer *imageBlockedTimer;

//
-(void) takeBlockedImage
{
NSLog(@"takeBlockedImage: Trying to take lock...");
BOOL iWin = NO;
@synchronized(self){
if(!imageBlocked) {
imageBlocked = YES;
iWin = YES;
NSLog(@"unblockImage: blocking..");
imageBlockedTimer = [NSTimer scheduledTimerWithTimeInterval:10.0 target:self selector:@selector(unblockImage) userInfo:nil repeats:NO];
} // end of if blocked
} // end of sync
if(iWin) {
NSLog(@"takeBlockedImage: I won");
[self takePhotoWithDelay:2.0f];
} else {
NSLog(@"takeBlockedImage: I lost");
} // end of if iWin


}

-(void) unblockImage
{
NSLog(@"unblockImage: unblocking..");
imageBlocked = NO;
}


@end