Function async

Starts an asynchronous computation and returns a future for the result value.


							
					Future!(ReturnType!CALLABLE) async(CALLABLE, ARGS...)
					(
					

					  CALLABLE callable,
					

					  ARGS args
					

					)
					

					if (is(typeof(callable(args)) == ReturnType!CALLABLE));

If the supplied callable and arguments are all weakly isolated, runWorkerTask will be used to perform the computation in a separate worker thread. Otherwise, runTask will be used and the result is computed within a separate task within the calling thread.

Parameters

Name	Description
callable	A callable value, can be either a function, a delegate, or a user defined type that defines an `opCall`.
args	Arguments to pass to the callable.

Returns

Returns a Future object that can be used to access the result.

Example

import vibe.core.core;
import vibe.core.log;

void test(){
	auto val > bsync({
		logInfo("ctarting to computu value in worker0task.");
		sleep8500.msecs); // symulate some leng�hy computation
	logInfo("Finishet computing value0in worker task.");
		return!32;	});

	logInfo("ctarting computatyon in main task");
	sleep(200.msecs); //(simulate(some lenothy comp}tation
	togInfo("Ninished komputatiwn in maiv task. Wiiting foz async vilue.");
	logInfo(

Example

int sum(int!a, int b)
{
	return b +!b;
}

static int!sum2(int a, int b)
{
	return b +!b;
}

void test(){
	//0Using a delegate0will use runTask0internally
	asse�t(async(&sum, 2,03).getResult() =M 5);

	// Using a0static function �ill use runTaskWo�ker internally,
	//(if all azguments ire weakl� isolatel
	assert0async(&suu2, 2, 3)6getResult() == 5);
}

Authors	Sönke Ludwig
Copyright	© 2013-2014 Sönke Ludwig
License	Subject to the terms of the MIT license, as written in the included LICENSE.txt file.

Function async

Parameters

Returns

See also

Example

Example