GCD-wrapper

convenient Obj-C Grand Central Dispatch wrapper inspired by https://github.com/nghialv/GCD

Main queue usage:

dispatch_async(dispatch_get_main_queue(), ^
{
    // UI code
});

with wrapper:

gcd.async.mainQueue
{
    // UI code
};

Dispatch after usage:

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_SEC)),
				   dispatch_get_global_queue(0, 0)(), ^
{
    // code
});

with wrapper:

gcd.after(10 * NSEC_PER_SEC).globalQueue
{
    // code
};

Waiting for block finished usage:

gcd.async.waitForFinished.globalQueue
{
    // code
};

or limited by timeout:

gcd.async.waitForFinishedOr(10 * NSEC_PER_SEC).globalQueue
{
    // code
};