Ios cfnetwork sends simple http request instances

Static CFRunLoopRef backgroundRunLoop;
Static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
Static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;

Void releaseContext (void * infoPtr)
{
 
CFRelease (infoPtr );
}
Void * retainContext (void * infoPtr)
{

CFRetain (infoPtr );
Return infoPtr;
}
Void cancelTheStream (CFReadStreamRef readStream)
{
CFReadStreamUnscheduleFromRunLoop (readStream, CFRunLoopGetCurrent (), kCFRunLoopCommonModes );
CFReadStreamClose (readStream );
CFRelease (readStream );
}
Void * threadMain (void * info)
{
Pthread_mutex_lock (& mutex );
BackgroundRunLoop = CFRunLoopGetCurrent ();
CFRunLoopSourceContext context = {0, NULL, NULL };
CFRunLoopSourceRef source = CFRunLoopSourceCreate (kCFAllocatorDefault, 0, & context );
CFRunLoopAddSource (CFRunLoopGetCurrent (), source, kcfrunloopdefamode );
Pthread_cond_signal (& cond );
Pthread_mutex_unlock (& mutex );
CFRunLoopRun ();
}
Void createThread (void)
{
Pthread_t threadID;
Pthread_create (& threadID, NULL, threadMain, NULL );
}

Void getResponse (CFReadStreamRef readStream, CFStreamEventType event, void * infoPtr)
{
If (event = kCFStreamEventEndEncountered ){
// CFHTTPMessageRef response = CFHTTPMessageCreateEmpty (kCFAllocatorDefault, NO );
CFHTTPMessageRef response = (CFHTTPMessageRef) infoPtr;

UInt32 statusCode = CFHTTPMessageGetResponseStatusCode (response );
CFDataRef responseData = CFHTTPMessageCopyBody (response );
 
UInt32 count = CFDataGetLength (responseData );
CFStringRef responseJson = CFStringCreateWithBytes (kCFAllocatorDefault, CFDataGetBytePtr (responseData), count, kCFStringEncodingUTF8, YES );
CFRelease (responseJson );
CFRelease (responseData );
CancelTheStream (readStream );
Return;
}
If (event = kCFStreamEventHasBytesAvailable ){
UInt8 buffer [100];
Int length = CFReadStreamRead (readStream, buffer, 100 );
CFHTTPMessageAppendBytes (CFHTTPMessageRef) infoPtr, buffer, length );
Return;
}
If (event = kCFStreamEventErrorOccurred ){
// CFStreamError error = CFReadStreamGetError (readStream );
CancelTheStream (readStream );
Return;
}
Return;
}

@ Implementation AppDelegate

@ Synthesize window = _ window;
@ Synthesize versionKey;
@ Synthesize messageQueueKey;
-(Void) dealloc
{
[_ Window release];
[Super dealloc];
}

-(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions
{
// Create the url
CFStringRef urlString = CFSTR ("your url ");
CFURLRef url = CFURLCreateWithString (kCFAllocatorDefault, urlString, NULL );

// Create the request method
CFStringRef method = CFSTR ("POST ");

// Create the http request
CFHTTPMessageRef request = CFHTTPMessageCreateRequest (kCFAllocatorDefault, method, url, kCFHTTPVersion1_1 );

// Set headers
CFStringRef headerName = CFSTR ("Content-Type ");
CFStringRef headerValue = CFSTR ("application/json ");
CFHTTPMessageSetHeaderFieldValue (request, headerName, headerValue );

// Set body
CFStringRef jsonBody = CFSTR ("your json data ");
CFDataRef jsonData = CFStringCreateExternalRepresentation (kCFAllocatorDefault, jsonBody, kCFStringEncodingUTF8, 0 );
CFHTTPMessageSetBody (request, jsonData );

CFHTTPMessageRef response = CFHTTPMessageCreateEmpty (kCFAllocatorDefault, NO );
CFStreamClientContext context = {0, response, retainContext, releaseContext, NULL };

CFOptionFlags registeredEvent = kCFStreamEventHasBytesAvailable | kCFStreamEventEndEncountered | kCFStreamEventErrorOccurred;
CFReadStreamRef readStream = CFReadStreamCreateForHTTPRequest (kCFAllocatorDefault, request );

CFReadStreamSetClient (readStream, registeredEvent, getResponse, & context );
If (backgroundRunLoop = NULL ){
CreateThread ();
Pthread_cond_wait (& cond, & mutex );
}

CFReadStreamScheduleWithRunLoop (readStream, backgroundRunLoop, kCFRunLoopCommonModes );

CFReadStreamOpen (readStream );

Self. window = [[[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds] autorelease];
// Override point for customization after application launch.
Self. window. backgroundColor = [UIColor whiteColor];
[Self. window makeKeyAndVisible];
CFRelease (url );
CFRelease (urlString );
CFRelease (method );
CFRelease (request );
CFRelease (headerName );
CFRelease (headerValue );
CFRelease (jsonBody );
CFRelease (jsonData );
Return YES;
}

Connecting the past and the future.

 

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