HTTPLoader

gistfile1.m

//
//  HTTPLoader.m
//  HTTPLoader
//
//  Created by Keisuke Kimura on 2012/08/08.
//  Copyright (c) 2012年 Keisuke Kimura. All rights reserved.
//

#import "HTTPLoader.h"

static NSOperationQueue* operationQueue;

@implementation HTTPLoader

+ (NSOperationQueue*)operationQueue
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        operationQueue = [[NSOperationQueue alloc] init];
        [operationQueue setMaxConcurrentOperationCount:5];
    });
    
    return operationQueue;
}

+ (void)loadAsync:(NSURLRequest *)request complete:(CompleteBlock)completeBlock
{
    __block NSBlockOperation* operation = [NSBlockOperation blockOperationWithBlock:^{
        
        NSData* responseData = nil;
        NSURLResponse* response = nil;
        NSError* error = nil;
        
        responseData = [NSURLConnection sendSynchronousRequest:request
                                             returningResponse:&response
                                                         error:&error];
        
        if(!operation.isCancelled){
            completeBlock(responseData,error);
        }
        
    }];
    
    [[HTTPLoader operationQueue] addOperation:operation];
}

+ (void)cancelAll
{
    [[HTTPLoader operationQueue] cancelAllOperations];
}

@end