Added support for ASIHTTPRequests as background tasks

@@ -427,6 +427,11 @@ extern unsigned long const ASIWWANBandwidthThrottleAmount;
 
 
 	// Set secondsToCache to use a custom time interval for expiring the response when it is stored in a cache
 	// Set secondsToCache to use a custom time interval for expiring the response when it is stored in a cache
 	NSTimeInterval secondsToCache;
 	NSTimeInterval secondsToCache;
+
+	#if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
+	BOOL shouldContinueWhenAppEntersBackground;
+	UIBackgroundTaskIdentifier backgroundTask;
+	#endif
 }
 }
 
 
 #pragma mark init / dealloc
 #pragma mark init / dealloc
@@ -855,4 +860,7 @@ extern unsigned long const ASIWWANBandwidthThrottleAmount;
 @property (assign, readonly) BOOL didUseCachedResponse;
 @property (assign, readonly) BOOL didUseCachedResponse;
 @property (assign) NSTimeInterval secondsToCache;
 @property (assign) NSTimeInterval secondsToCache;
 @property (retain) NSArray *clientCertificates;
 @property (retain) NSArray *clientCertificates;
+#if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
+@property (assign) BOOL shouldContinueWhenAppEntersBackground;
+#endif
 @end
 @end

@@ -23,7 +23,7 @@
 
 
 
 
 // Automatically set on build
 // Automatically set on build
-NSString *ASIHTTPRequestVersion = @"v1.7-51 2010-08-18";
+NSString *ASIHTTPRequestVersion = @"v1.7-52 2010-08-18";
 
 
 NSString* const NetworkRequestErrorDomain = @"ASIHTTPRequestErrorDomain";
 NSString* const NetworkRequestErrorDomain = @"ASIHTTPRequestErrorDomain";
 
 
@@ -644,6 +644,24 @@ static NSOperationQueue *sharedQueue = nil;
 		
 		
 		[[self cancelledLock] lock];
 		[[self cancelledLock] lock];
 		
 		
+		#if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
+		if ([[UIDevice currentDevice] isMultitaskingSupported] && [self shouldContinueWhenAppEntersBackground]) {
+			backgroundTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
+				// Synchronize the cleanup call on the main thread in case
+				// the task actually finishes at around the same time.
+				dispatch_async(dispatch_get_main_queue(), ^{
+					if (backgroundTask != UIBackgroundTaskInvalid)
+					{
+						[[UIApplication sharedApplication] endBackgroundTask:backgroundTask];
+						backgroundTask = UIBackgroundTaskInvalid;
+						[self cancel];
+					}
+				});
+			}];
+		}
+		#endif
+
+
 		// A HEAD request generated by an ASINetworkQueue may have set the error already. If so, we should not proceed.
 		// A HEAD request generated by an ASINetworkQueue may have set the error already. If so, we should not proceed.
 		if ([self error]) {
 		if ([self error]) {
 			[self setComplete:YES];
 			[self setComplete:YES];
@@ -2903,6 +2921,16 @@ static NSOperationQueue *sharedQueue = nil;
 
 
 	CFRunLoopStop(CFRunLoopGetCurrent());
 	CFRunLoopStop(CFRunLoopGetCurrent());
 
 
+	#if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
+	if ([[UIDevice currentDevice] isMultitaskingSupported] && [self shouldContinueWhenAppEntersBackground]) {
+		dispatch_async(dispatch_get_main_queue(), ^{
+			if (backgroundTask != UIBackgroundTaskInvalid) {
+				[[UIApplication sharedApplication] endBackgroundTask:backgroundTask];
+				backgroundTask = UIBackgroundTaskInvalid;
+			}
+		});
+	}
+	#endif
 	[self release];
 	[self release];
 }
 }
 
 
@@ -4257,4 +4285,7 @@ static NSOperationQueue *sharedQueue = nil;
 @synthesize didUseCachedResponse;
 @synthesize didUseCachedResponse;
 @synthesize secondsToCache;
 @synthesize secondsToCache;
 @synthesize clientCertificates;
 @synthesize clientCertificates;
+#if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
+@synthesize shouldContinueWhenAppEntersBackground;
+#endif
 @end
 @end

@@ -20,6 +20,9 @@
 	[request setPostValue:@"test" forKey:@"value2"];
 	[request setPostValue:@"test" forKey:@"value2"];
 	[request setPostValue:@"test" forKey:@"value3"];
 	[request setPostValue:@"test" forKey:@"value3"];
 	[request setTimeOutSeconds:20];
 	[request setTimeOutSeconds:20];
+	#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
+	[request setShouldContinueWhenAppEntersBackground:YES];
+	#endif
 	[request setUploadProgressDelegate:progressIndicator];
 	[request setUploadProgressDelegate:progressIndicator];
 	[request setDelegate:self];
 	[request setDelegate:self];
 	[request setDidFailSelector:@selector(uploadFailed:)];
 	[request setDidFailSelector:@selector(uploadFailed:)];
@@ -53,6 +56,23 @@
 - (void)uploadFinished:(ASIHTTPRequest *)theRequest
 - (void)uploadFinished:(ASIHTTPRequest *)theRequest
 {
 {
 	[resultView setText:[NSString stringWithFormat:@"Finished uploading %llu bytes of data",[theRequest postLength]]];
 	[resultView setText:[NSString stringWithFormat:@"Finished uploading %llu bytes of data",[theRequest postLength]]];
+
+	#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_0
+    // Clear out the old notification before scheduling a new one.
+    if ([[[UIApplication sharedApplication] scheduledLocalNotifications] count] > 0)
+        [[UIApplication sharedApplication] cancelAllLocalNotifications];
+
+    // Create a new notification
+    UILocalNotification* alarm = [[[UILocalNotification alloc] init] autorelease];
+    if (alarm) {
+		[alarm setFireDate:[NSDate date]];
+		[alarm setTimeZone:[NSTimeZone defaultTimeZone]];
+		[alarm setRepeatInterval:0];
+		[alarm setSoundName:@"alarmsound.caf"];
+		[alarm setAlertBody:@"Boom!\r\n\r\nUpload is finished!"];
+        [[UIApplication sharedApplication] scheduleLocalNotification:alarm];
+    }
+	#endif
 }
 }
 
 
 - (void)dealloc
 - (void)dealloc
@@ -78,7 +98,7 @@
 
 
 }
 }
 
 
-static NSString *intro = @"Demonstrates POSTing content to a URL, showing upload progress.\nYou'll only see accurate progress for uploads when the request body is larger than 128KB (in 2.2.1 SDK), or when the request body is larger than 32KB (in 3.0 SDK)";
+static NSString *intro = @"Demonstrates POSTing content to a URL, showing upload progress.\nYou'll only see accurate progress for uploads when the request body is larger than 128KB (in 2.2.1 SDK), or when the request body is larger than 32KB (in 3.0 SDK)\n\nThis request is also setup to run when the app enters the background on devices running on iOS4. In the delegate method that is called when the request finishes, we show a local notification to let the user know the upload is finished.";
 
 
 - (UIView *)tableView:(UITableView *)theTableView viewForHeaderInSection:(NSInteger)section
 - (UIView *)tableView:(UITableView *)theTableView viewForHeaderInSection:(NSInteger)section
 {
 {