mirror of
https://github.com/musix-org/musix-oss
synced 2024-12-23 13:03:18 +00:00
35 lines
599 B
JavaScript
35 lines
599 B
JavaScript
|
var defer = require('./defer.js');
|
||
|
|
|
||
|
|
// API
|
||
|
|
module.exports = async;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Runs provided callback asynchronously
|
||
|
|
* even if callback itself is not
|
||
|
|
*
|
||
|
|
* @param {function} callback - callback to invoke
|
||
|
|
* @returns {function} - augmented callback
|
||
|
|
*/
|
||
|
|
function async(callback)
|
||
|
|
{
|
||
|
|
var isAsync = false;
|
||
|
|
|
||
|
|
// check if async happened
|
||
|
|
defer(function() { isAsync = true; });
|
||
|
|
|
||
|
|
return function async_callback(err, result)
|
||
|
|
{
|
||
|
|
if (isAsync)
|
||
|
|
{
|
||
|
|
callback(err, result);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
defer(function nextTick_callback()
|
||
|
|
{
|
||
|
|
callback(err, result);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|