atomic-form | React.js forms with validation | Form library
kandi X-RAY | atomic-form Summary
kandi X-RAY | atomic-form Summary
A complete component for building React Forms.
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QUESTION
In one of Timmy Jose's blog posts at https://z0ltan.wordpress.com/2016/09/02/basic-concurrency-and-parallelism-in-common-lisp-part-3-concurrency-using-bordeaux-and-sbcl-threads/ he gives an example of the wrong way to print to the top level from inside a thread (using Bordeaux Threads as an example, although I am using Lparallel):
...ANSWER
Answered 2019-Mar-25 at 22:03If you actually have a global binding (a binding in the global environment), it does work for all threads; see the documentation for bt:make-thread. Only dynamic (re-)bindings are thread-local. Implementations differ in how/when they bind those streams; sometimes the binding that is actually in effect for user programs is global, sometimes not.
I like to use some sort of queue or channel to coordinate output where necessary; I have not yet run into situations where the locking overhead was prohibitive.
Maybe you could try something with optimistic locking, but I don't know what has been done for that librarywise (some Lisp implementations do have CAS operations that could be used). This should be orthogonal to the parallelism library used.
EDIT: Just found in the SBCL manual: sb-concurrency has lock-free queues and mailboxes.
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