Re: [HELP!] Rev Externals: running a loop without disrupting the stack or inter thread communication
Yes it did but that still needs to materialize! Good to see you here Shao! By the way, your external is a cocoa external? Are you calling cocoa stuff from carbon? Cheers andre On Sun, Jul 25, 2010 at 1:30 AM, Shao Sean shaos...@wehostmacs.com wrote: Be nice once Rev gets back into the swing of updating their desktop offering and the external interface.. The sample they released at a Rev conference looks nice and has a sample of spawning a thread and returning back to Rev.. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution -- http://www.andregarzia.com All We Do Is Code. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: [HELP!] Rev Externals: running a loop without disrupting the stack or inter thread communication
Hopefully they get back on track with updating the desktop offering.. Actually the external is all Carbon.. I have played with a couple other single use externals that used Cocoa from Carbon.. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: [HELP!] Rev Externals: running a loop without disrupting the stack or inter thread communication
Be nice once Rev gets back into the swing of updating their desktop offering and the external interface.. The sample they released at a Rev conference looks nice and has a sample of spawning a thread and returning back to Rev.. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
[HELP!] Rev Externals: running a loop without disrupting the stack or inter thread communication
Folks Folkettes, I've written a nice external here which I hope will be the basis of many of my forthcoming products. My external is a Embeddable Web Server just like Valentina and SQLite are Embeddable Databases. Among other things, it uses a poll of threads to serve the web requests. My question is related to how to trigger a callback on the stack when a request comes. When there's a web request, the external drives it to some of it's threads, it might start a new one if needed or reuse an old one. Anyway, the thing is, the code answering the web request probably is running on a different thread/process (pthreads) than the rev engine and thus that code can't execute External SDK calls because Rev Engine likes its calls be made only from the main thread. What I need is first a way to notify the main thread when a child thread has something it wants executed in the rev engine. I am thinking about maybe using pipes for that or message queues. If you want an example on why this feature is useful, for example, it is useful for binding URLs to Revolution Handlers/Commands so that when a request comes, we send NewRequest to the main stack for example. You might be thinking But andre doesn't that defeats the purpose of having multiple threads since they will all block trying to talk to rev single-thread engine?, and the answer is I don't mean to drive all requests back to rev but to allow some urls to be connected back to rev so that you can serve static pages and cgis but also have some specific urls that can trigger user-defined commands. So for the external writers among us, using pipes or message queues for inter thread communication is the best way? Second question and this probably shows my lack of deep C and Rev Externals knowledge is, how can we start some eternal looping code in the external. If you think about the question above, it is clear that something in the main thread needs to be tied to the other end of the pipe or message queue. This other piece of code might be blocked with select() or poll() waiting for something to happen, now, if I create an externalCommand like webserver_initloop that starts this loop, wouldn't it block the engine if the function never returns? If this is confusing let me summarize: How can some code on the external keep processing while returning the control to rev at the same time. By the way, guess whos web server external can load revserver engine and thus create a portable environment for developing local revserver solutions? Mine! :D PS: If anyone knows anything about this please type a couple of words, I would hate to release my external without my cherished url binding routine. We still don't have super good information on external writing so things are hard. -- http://www.andregarzia.com All We Do Is Code. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: [HELP!] Rev Externals: running a loop without disrupting the stack or inter thread communication
Andre- Friday, July 23, 2010, 12:17:47 PM, you wrote: Second question and this probably shows my lack of deep C and Rev Externals knowledge is, how can we start some eternal looping code in the external. If you think about the question above, it is clear that something in the main thread needs to be tied to the other end of the pipe or message queue. This other piece of code might be blocked with select() or poll() waiting for something to happen, now, if I create an externalCommand like webserver_initloop that starts this loop, wouldn't it block the engine if the function never returns? If this is confusing let me summarize: How can some code on the external keep processing while returning the control to rev at the same time. I've done that in an external by writing a complete event-handler loop as if the external were an application. You can then write your own event types and catch them in the event loop. It's weird, but it does the trick. -- -Mark Wieder mwie...@ahsoftware.net ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
Re: [HELP!] Rev Externals: running a loop without disrupting the stack or inter thread communication
Second question and this probably shows my lack of deep C and Rev Externals knowledge is, how can we start some eternal looping code in the external. If you think about the question above, it is clear that something in the main thread needs to be tied to the other end of the pipe or message queue. This other piece of code might be blocked with select() or poll() waiting for something to happen, now, if I create an externalCommand like webserver_initloop that starts this loop, wouldn't it block the engine if the function never returns? If this is confusing let me summarize: How can some code on the external keep processing while returning the control to rev at the same time. I've done that in an external by writing a complete event-handler loop as if the external were an application. You can then write your own event types and catch them in the event loop. It's weird, but it does the trick. Mark, But how to you start your event loop? If you start it by calling an externalcommand from rev, does it block rev? Thanks for the answer, this will really help me since there's only a single event! :D -- http://www.andregarzia.com All We Do Is Code. ___ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
