Mark
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);
|
|
});
|
|
}
|
|
};
|
|
}
|