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[REBOL] Re: wait, events and ports - how they work together ?

From: sags::apollo::lv at: 27-Jul-2006 8:45

I want to clarify it a litle bit more. So - what to do if I do not want to wait on a port? F.ex. do not wait on view/layout events? I.e. remove them from wait list: tmpPrts: system/ports/wait-list clear system/ports/wait-list do something with other port ... ... wait ser-port system/ports/wait-list: tmpPrts Why in case above wait still waits on view/layout events, but when they happen returns ser-port? (hopefuly I understood right how  my code works;-) Janeks On 25 Jul 2006 at 10:07, Gabriele Santilli wrote:
>A little background on how WAIT works: >>1) you can think of WAIT as doing
something like: >>  wait: func [ports [block!]] [
>   &#160 internal-wait join system/ports/wait-list
ports>  ] >>  (just  showing  the block of ports case for simplicity). So this >  means  that to wait on a port, either you pass it to WAIT or you >  put  it  in  the  wait  list. A port that is in the wait list is
>  always waited for every time you use WAIT. >>2) when there is
anevent on a port that is being waited for: >>  2.1) if the port has no AWAKE function, then  WAIT  returns  the
>  &#16#160 port. >  2.2) if the port has an AWAKE
function, this function is called; >      if  it  returns  true,  WAIT returns the port; if it returns
> &#160 false, WAIT continues waiting. >>Note that in the current
implementation only the value FALSE makes >WAIT  continue  waiting,any other value will make it return (i.e. >it  doesn't  consider  NONE to be equivalent to FALSE, you have to >explicitly returnFALSE). >>In  your  case  I'd  just suggest to add your sms-port to the wait >list  and  set  an awake function for it. Awake functions take one >argument,  the  port  that  got the event (so you can use the same >function on many ports; in your case you don't care about this). >>Regards, >   Gabriele. >--
>Gabriele Santilli <>&#160; ---&#160;>Colella Chiara software division --- >>-- >To unsubscribe from the list, just send an email to >lists at with unsubscribe as the subject. >