On Sat, Oct 3, 2015 at 5:37 PM, 韩冬 <[email protected]> wrote:
> > This is exactly where i’m getting puzzled, suppose we have thread in > javascript(or whatever to run different things on different cores), > consider following code: > > We don't have threads in JavaScript, and there is no shared memory in most current environments that support multicore calculations. Those who do have shared memory do not have *arbitrary* shared memory. If we do choose to support threads in the future, the algorithms in Promise, as well as in many other places in the specification would have to drastically change. Currently, the specification is not thread aware in any way. ECMAScript implementations typically deal with concurrency though a single threaded non-blocking event loop model where other heavy computation is offloaded to processes or to the platform. > During pending stage, both func1 and func2 are going to pushed into an > internal array, shouldn’t this array resize operation be protected by a > lock? > If there are multiple threads then yes. As explained above, ECMAScript itself has no locks. > Thanks for your explanations. > > ~winter > >
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