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Run sleep in background thread #34

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Run sleep in background thread #34

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101 changes: 57 additions & 44 deletions QueueITLib/QueueITWaitingRoomProvider.m
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Original file line number Diff line number Diff line change
Expand Up @@ -53,24 +53,31 @@ -(BOOL) TryPassWithEnqueueKey: (NSString*)enqueueKey error:(NSError *__autorelea


-(BOOL)tryEnqueue:(NSString*)enqueueToken
enqueueKey:(NSString*)enqueueKey
error:(NSError**)error
{
if(![self checkConnection:error]) {
return NO;
}

if(self.requestInProgress) {
*error = [NSError errorWithDomain:@"QueueITRuntimeException" code:RequestAlreadyInProgress userInfo:nil];
return NO;
}

[IOSUtils getUserAgent:^(NSString * userAgent) {
[self tryEnqueueWithUserAgent:userAgent enqueueToken:enqueueToken enqueueKey:enqueueKey error:error];
}];

return YES;
}
enqueueKey:(NSString*)enqueueKey
error:(NSError**)error
{
if (self.requestInProgress) {
*error = [NSError errorWithDomain:@"QueueITRuntimeException" code:RequestAlreadyInProgress userInfo:nil];
return NO;
}

[self checkConnectionWithCompletion:^(BOOL isConnected) {
if (!isConnected) {
*error = [NSError errorWithDomain:@"QueueITRuntimeException" code:NetworkUnavailable userInfo:nil];
self.requestInProgress = NO;
return;
}

self.requestInProgress = YES;

[IOSUtils getUserAgent:^(NSString *userAgent) {
[self tryEnqueueWithUserAgent:userAgent enqueueToken:enqueueToken enqueueKey:enqueueKey error:error];
}];
}];

return YES;
}


-(void)tryEnqueueWithUserAgent:(NSString*)secretAgent
enqueueToken:(NSString*)enqueueToken
Expand Down Expand Up @@ -141,39 +148,45 @@ -(void)enqueueRetryMonitor:(NSString*)enqueueToken
enqueueKey:(NSString*)enqueueKey
error:(NSError**)error
{
if (self.deltaSec < MAX_RETRY_SEC)
{
[self tryEnqueue:enqueueToken enqueueKey:enqueueKey error:error];

[NSThread sleepForTimeInterval:self.deltaSec];
self.deltaSec = self.deltaSec * 2;
}
else
{
if (self.deltaSec < MAX_RETRY_SEC) {

// Schedule retry on a background thread
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(self.deltaSec * NSEC_PER_SEC)), dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
[self tryEnqueue:enqueueToken enqueueKey:enqueueKey error:error];
self.deltaSec = self.deltaSec * 2;
});

} else {
self.deltaSec = INITIAL_WAIT_RETRY_SEC;
self.requestInProgress = NO;
[self.delegate waitingRoomProvider:self notifyProviderFailure:@"Error! Queue is unavailable." errorCode:3];
}
}

-(BOOL)checkConnection:(NSError **)error
{
int count = 0;
while (count < 5)
{
NetworkStatus netStatus = [self.internetReachability currentReachabilityStatus];
if (netStatus == NotReachable)
{
[NSThread sleepForTimeInterval:1.0f];
count++;
}
else
{
return YES;
- (void)checkConnectionWithCompletion:(void(^)(BOOL isConnected))completion {

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

BOOL isConnected = NO;
int count = 0;
while (count < 5) {
NetworkStatus netStatus = [self.internetReachability currentReachabilityStatus];
if (netStatus == NotReachable) {
[NSThread sleepForTimeInterval:1.0f]; // Blocking sleep
count++;
} else {
isConnected = YES;
break;
}
}
}
*error = [NSError errorWithDomain:@"QueueITRuntimeException" code:NetworkUnavailable userInfo:nil];
return NO;

dispatch_async(dispatch_get_main_queue(), ^{
if (completion) {
completion(isConnected);
}
});

});
}

-(BOOL)IsRequestInProgress {
Expand Down