Hi Ranier,
I think the key issue is the same. While the Main Thread were blocked by
IupMainLoop(), the msg_consumer() won't get a chance to be called, unless
set up the timer or idle function.
Kind regards
Andy
> ------------------------------
>
> Message: 2
> Date: Wed, 7 Oct 2015 13:15:43 +0000
> From: Ranier VF <ranier_...@hotmail.com>
> Subject: Re: [Iup-users] Is Iup pthread safe?
> To: IUP discussion list. <iup-users@lists.sourceforge.net>
> Message-ID: <bay168-w137cdc4f061545cc66d8b62e3...@phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi,I think this not a perfect solution, but can work, or not?You can not
> call directly GUI functions, but can order to call.
> Main Thread: main_gui.c
> int update_main_title(Ihandle * dlg, const char * title){
> IupSetAttribute(dlg, "TITLE", title);}
> void msg_consumer(msg){ switch(msg->cmd) { case
> MSG_UPDATE_MAIN_TITLE: update_main_title(dlg, msg->text);
> msg->processed = 1; break; }}
> Workers Threads: thread1.c
> int worker1(void){ /* update main title */ /* send message to
> consumer GUI Thread */ msg_send(thread_gui, MSG_UPDATE_MAIN_TITLE, "New
> Title");}
> Best,
> Ranier Vilela
>
> Date: Wed, 7 Oct 2015 09:03:20 -0300
> From: sc...@tecgraf.puc-rio.br
> To: iup-users@lists.sourceforge.net
> Subject: Re: [Iup-users] Is Iup pthread safe?
>
> You can set the IDLE function using IupSetFunction("IDLE_ACTION",
> my_func). You hacked the inner part of it.
> But be aware that the IDLE consumes CPU a lot, because it is not
> actually "idle".
> Best,Scuri
>
> On Wed, Oct 7, 2015 at 6:15 AM, Andy Xiyue <xiyue...@gmail.com> wrote:
> Hey guys,
>
> Please ignore the quoted contents, I don't know why I can't receive the
> thread emails but the Iup-users Digest.
>
> Well when I read the source code of IupMainLoop() expecting some clue, I
> do find a clue, iupdrvSetIdleFunction(). I guess it will be called inside
> IupMainLoop() when it's idle so I put a test code in there, please find the
> attached snippet.
>
> In simple words, I moved all IUP related events into the idle function and
> let it communicate with other thread via a global variable (just to prove
> the concept, will be changed to a message queue later). It works pretty
> well :-)
>
> The only problem is this approach looks like a hacking. The
> iupdrvSetIdleFunction() is an internal function which means it should not
> be called by users. Another only problem will be the CPU usage could be
> high because you have to poll your events/messages/etc constantly inside
> the idle function. It's legal but nasty.
>
> Hi John,
>
> I'm afraid I don't understand script basic. Any idea in C?
>
> Hi Milind,
> I thought about the timer but haven't tried it yet. How's the performance?
> Hi Ranier,
> I think the main issue is not choosing which IPC but how to run IPC in the
> main IUP thread. Currently I can't have the main IUP thread accepting
> events from other threads.
> Hi J?rg,
> It sounds we are looking at the same problem, how to unblock the gui
> inside main loop.
> Hi Scuri,
> Is there some method officially recommended by IUP team, similar to my
> hacking in iupdrvSetIdleFunction(), to intercommunicating between threads?
> For example, some function call to insert IUP events into underlay event
> list so it will be processed finally in the main loop? In that case, I can
> send notification in other threads and it will trigger an event in main IUP
> thread so my codes could update the progress bar or something else?
> Kind regardsAndy
>
>
> On 6 October 2015 at 21:25, <iup-users-requ...@lists.sourceforge.net>
> wrote:
> Send Iup-users mailing list submissions to
>
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>
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>
>
> Today's Topics:
>
>
>
> 1. Re: Is Iup pthread safe? (John Spikowski)
>
> 2. Re: Is Iup pthread safe? (Ranier VF)
>
> 3. Re: Is Iup pthread safe? (Andy Xiyue)
>
> 4. Re: Is Iup pthread safe? (Milind Gupta)
>
> 5. Re: Is Iup pthread safe? (John Spikowski)
>
> 6. Re: Is Iup pthread safe? (Ranier VF)
>
>
>
>
>
> ----------------------------------------------------------------------
>
>
>
> Message: 1
>
> Date: Thu, 01 Oct 2015 23:39:24 -0700
>
> From: John Spikowski <supp...@scriptbasic.org>
>
> Subject: Re: [Iup-users] Is Iup pthread safe?
>
> To: "IUP discussion list." <iup-users@lists.sourceforge.net>
>
> Message-ID: <1443767964.2357.2.camel@laptop>
>
> Content-Type: text/plain; charset="UTF-8"
>
>
>
> Hi Andy,
>
>
>
> IUP isn't thread safe by default but that doesn't mean it can't be done.
>
> Here is an example in Script BASIC (Windows & Linux)
>
>
>
> http://www.scriptbasic.org/forum/index.php/topic,335.0.html
>
>
>
> John
>
>
>
>
>
> On Fri, 2015-10-02 at 14:36 +1000, Andy Xiyue wrote:
>
> > Hi Scuri,
>
> >
>
> >
>
> > Recently I tried to use IUP with more than one thread. My plan is
>
> > simple, run IupMainLoop() in one thread and feed progress bar or text
>
> > control in another thread. Theoretically I don't need to synchronize
>
> > the IUP calls because the IupMainLoop() will process the events sooner
>
> > or later. However I met a lot of problems. Sometimes the client area
>
> > became invalided without refresh. Sometimes I got a core dump
>
> > triggered by X11 event. For example, the attached file was simplified
>
> > from my program. When the progress bar running, if you select text in
>
> > the text control, the app will received sig 11:
>
> >
>
> > iqiup: Fatal IO error 11 (Resource temporarily unavailable) on X
>
> > server :0.0.
>
> >
>
> >
>
> > It looks like I misunderstood the programming model of IUP. Is IUP
>
> > safe to update the attribution of controls in different thread? If
>
> > it's not, how can I manually send events to the main loop to update
>
> > the controls?
>
> >
>
> >
>
> > Kind regards
>
> >
>
> > Andy
>
> >
>
> >
> ------------------------------------------------------------------------------
>
> > _______________________________________________
>
> > Iup-users mailing list
>
> > Iup-users@lists.sourceforge.net
>
> > https://lists.sourceforge.net/lists/listinfo/iup-users
>
>
>
>
>
>
>
>
>
>
>
> ------------------------------
>
>
>
> Message: 2
>
> Date: Fri, 2 Oct 2015 10:03:13 +0000
>
> From: Ranier VF <ranier_...@hotmail.com>
>
> Subject: Re: [Iup-users] Is Iup pthread safe?
>
> To: IUP discussion list. <iup-users@lists.sourceforge.net>
>
> Message-ID: <bay168-w110f48abdeb2d5e950b3b19e3...@phx.gbl>
>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
>
> Hi,Neither GUI is thread safe.You need call Thread GUI, to update the
> interface.From: http://webserver2.tecgraf.puc-rio.br/iup/MultithreadUser
> interface is usually not thread safe and IUP is not thread safe. The
> general recommendation when you want more than one thread is to build the
> application and the user interface in the main thread, and create secondary
> threads that communicates with the main thread to update the interface. The
> secondary threads should not directly update the interface.
>
> Best,Ranier Vilela
>
>
>
> > From: supp...@scriptbasic.org
>
> > To: iup-users@lists.sourceforge.net
>
> > Date: Thu, 1 Oct 2015 23:39:24 -0700
>
> > Subject: Re: [Iup-users] Is Iup pthread safe?
>
> >
>
> > Hi Andy,
>
> >
>
> > IUP isn't thread safe by default but that doesn't mean it can't be done.
>
> > Here is an example in Script BASIC (Windows & Linux)
>
> >
>
> > http://www.scriptbasic.org/forum/index.php/topic,335.0.html
>
> >
>
> > John
>
> >
>
> >
>
> > On Fri, 2015-10-02 at 14:36 +1000, Andy Xiyue wrote:
>
> > > Hi Scuri,
>
> > >
>
> > >
>
> > > Recently I tried to use IUP with more than one thread. My plan is
>
> > > simple, run IupMainLoop() in one thread and feed progress bar or text
>
> > > control in another thread. Theoretically I don't need to synchronize
>
> > > the IUP calls because the IupMainLoop() will process the events sooner
>
> > > or later. However I met a lot of problems. Sometimes the client area
>
> > > became invalided without refresh. Sometimes I got a core dump
>
> > > triggered by X11 event. For example, the attached file was simplified
>
> > > from my program. When the progress bar running, if you select text in
>
> > > the text control, the app will received sig 11:
>
> > >
>
> > > iqiup: Fatal IO error 11 (Resource temporarily unavailable) on X
>
> > > server :0.0.
>
> > >
>
> > >
>
> > > It looks like I misunderstood the programming model of IUP. Is IUP
>
> > > safe to update the attribution of controls in different thread? If
>
> > > it's not, how can I manually send events to the main loop to update
>
> > > the controls?
>
> > >
>
> > >
>
> > > Kind regards
>
> > >
>
> > > Andy
>
> > >
>
> > >
> ------------------------------------------------------------------------------
>
> > > _______________________________________________
>
> > > Iup-users mailing list
>
> > > Iup-users@lists.sourceforge.net
>
> > > https://lists.sourceforge.net/lists/listinfo/iup-users
>
> >
>
> >
>
> >
>
> >
> ------------------------------------------------------------------------------
>
> > _______________________________________________
>
> > Iup-users mailing list
>
> > Iup-users@lists.sourceforge.net
>
> > https://lists.sourceforge.net/lists/listinfo/iup-users
>
>
>
> -------------- next part --------------
>
> An HTML attachment was scrubbed...
>
>
>
> ------------------------------
>
>
>
> Message: 3
>
> Date: Tue, 6 Oct 2015 15:54:51 +1100
>
> From: Andy Xiyue <xiyue...@gmail.com>
>
> Subject: Re: [Iup-users] Is Iup pthread safe?
>
> To: iup-users@lists.sourceforge.net
>
> Message-ID:
>
> <
> cafpcpfoggrkdhtvjjay5znapyt_ci+p-+wqnfjjqw393vsr...@mail.gmail.com>
>
> Content-Type: text/plain; charset="utf-8"
>
>
>
> Thanks John and Ranier.
>
>
>
> At least I'm confirmed now I can not update the attributions of IUP
>
> controls in other threads so my previous programming module was definitely
>
> wrong.
>
>
>
> So the question becomes how to send the control update event to the main
>
> thread?
>
>
>
> It's quite obvious the main thread is stuck in IupMainLoop(). Most events
>
> can be processed in this main thread, like buttons, text, etc. When users
>
> click the button, or inside the text input entry, the IUP generates the
>
> event and it will be processed in IupMainLoop(). However, how an external
>
> thread send the event into the main thread? I can't use message queue or
>
> semaphore because IupMainLoop() takes all the control. Are there some
>
> functions used for inserting IUP events?
>
>
>
> Kind regards
>
> Andy
>
> -------------- next part --------------
>
> An HTML attachment was scrubbed...
>
>
>
> ------------------------------
>
>
>
> Message: 4
>
> Date: Mon, 5 Oct 2015 22:01:48 -0700
>
> From: Milind Gupta <milind.gu...@gmail.com>
>
> Subject: Re: [Iup-users] Is Iup pthread safe?
>
> To: "IUP discussion list." <iup-users@lists.sourceforge.net>
>
> Message-ID:
>
> <
> caojr7arwlukyrqrc5l1krbqj8ayon3iqoerurxcufrv86hx...@mail.gmail.com>
>
> Content-Type: text/plain; charset="utf-8"
>
>
>
> What I did was to have a timer run and listen to communication from another
>
> thread. I used sockets to send and receive data.
>
>
>
> Milind
>
>
>
>
>
> On Mon, Oct 5, 2015 at 9:54 PM, Andy Xiyue <xiyue...@gmail.com> wrote:
>
>
>
> > Thanks John and Ranier.
>
> >
>
> > At least I'm confirmed now I can not update the attributions of IUP
>
> > controls in other threads so my previous programming module was
> definitely
>
> > wrong.
>
> >
>
> > So the question becomes how to send the control update event to the main
>
> > thread?
>
> >
>
> > It's quite obvious the main thread is stuck in IupMainLoop(). Most events
>
> > can be processed in this main thread, like buttons, text, etc. When users
>
> > click the button, or inside the text input entry, the IUP generates the
>
> > event and it will be processed in IupMainLoop(). However, how an external
>
> > thread send the event into the main thread? I can't use message queue or
>
> > semaphore because IupMainLoop() takes all the control. Are there some
>
> > functions used for inserting IUP events?
>
> >
>
> > Kind regards
>
> > Andy
>
> >
>
> >
>
> >
> ------------------------------------------------------------------------------
>
> >
>
> > _______________________________________________
>
> > Iup-users mailing list
>
> > Iup-users@lists.sourceforge.net
>
> > https://lists.sourceforge.net/lists/listinfo/iup-users
>
> >
>
> >
>
> -------------- next part --------------
>
> An HTML attachment was scrubbed...
>
>
>
> ------------------------------
>
>
>
> Message: 5
>
> Date: Mon, 05 Oct 2015 22:17:15 -0700
>
> From: John Spikowski <supp...@scriptbasic.org>
>
> Subject: Re: [Iup-users] Is Iup pthread safe?
>
> To: "IUP discussion list." <iup-users@lists.sourceforge.net>
>
> Message-ID: <1444108635.2309.11.camel@laptop>
>
> Content-Type: text/plain; charset="UTF-8"
>
>
>
> Andy,
>
>
>
> I feel if you follow what I have done in Script BASIC for threaded IUP
>
> it should work for you without any changes to anything.
>
>
>
> John
>
>
>
> On Tue, 2015-10-06 at 15:54 +1100, Andy Xiyue wrote:
>
> > Thanks John and Ranier.
>
> >
>
> >
>
> > At least I'm confirmed now I can not update the attributions of IUP
>
> > controls in other threads so my previous programming module was
>
> > definitely wrong.
>
> >
>
> > So the question becomes how to send the control update event to the
>
> > main thread?
>
> >
>
> >
>
> > It's quite obvious the main thread is stuck in IupMainLoop(). Most
>
> > events can be processed in this main thread, like buttons, text, etc.
>
> > When users click the button, or inside the text input entry, the IUP
>
> > generates the event and it will be processed in IupMainLoop().
>
> > However, how an external thread send the event into the main thread? I
>
> > can't use message queue or semaphore because IupMainLoop() takes all
>
> > the control. Are there some functions used for inserting IUP events?
>
> >
>
> >
>
> > Kind regards
>
> >
>
> > Andy
>
> >
>
> >
> ------------------------------------------------------------------------------
>
> > _______________________________________________
>
> > Iup-users mailing list
>
> > Iup-users@lists.sourceforge.net
>
> > https://lists.sourceforge.net/lists/listinfo/iup-users
>
>
>
>
>
>
>
>
>
>
>
> ------------------------------
>
>
>
> Message: 6
>
> Date: Tue, 6 Oct 2015 10:25:10 +0000
>
> From: Ranier VF <ranier_...@hotmail.com>
>
> Subject: Re: [Iup-users] Is Iup pthread safe?
>
> To: IUP discussion list. <iup-users@lists.sourceforge.net>
>
> Message-ID: <bay168-w306d48c8bfe8ca829b9c65e3...@phx.gbl>
>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
>
> Hi,Well, your implementation must be:one consumer (GUI thread)many
> producers (GUI events)
>
> You can use mutex-condition pair (classic), sockets or a new way pipes.
>
> Best,Ranier Vilela
>
>
>
> > From: supp...@scriptbasic.org
>
> > To: iup-users@lists.sourceforge.net
>
> > Date: Mon, 5 Oct 2015 22:17:15 -0700
>
> > Subject: Re: [Iup-users] Is Iup pthread safe?
>
> >
>
> > Andy,
>
> >
>
> > I feel if you follow what I have done in Script BASIC for threaded IUP
>
> > it should work for you without any changes to anything.
>
> >
>
> > John
>
> >
>
> > On Tue, 2015-10-06 at 15:54 +1100, Andy Xiyue wrote:
>
> > > Thanks John and Ranier.
>
> > >
>
> > >
>
> > > At least I'm confirmed now I can not update the attributions of IUP
>
> > > controls in other threads so my previous programming module was
>
> > > definitely wrong.
>
> > >
>
> > > So the question becomes how to send the control update event to the
>
> > > main thread?
>
> > >
>
> > >
>
> > > It's quite obvious the main thread is stuck in IupMainLoop(). Most
>
> > > events can be processed in this main thread, like buttons, text, etc.
>
> > > When users click the button, or inside the text input entry, the IUP
>
> > > generates the event and it will be processed in IupMainLoop().
>
> > > However, how an external thread send the event into the main thread? I
>
> > > can't use message queue or semaphore because IupMainLoop() takes all
>
> > > the control. Are there some functions used for inserting IUP events?
>
> > >
>
> > >
>
> > > Kind regards
>
> > >
>
> > > Andy
>
> > >
>
> > >
> ------------------------------------------------------------------------------
>
> > > _______________________________________________
>
> > > Iup-users mailing list
>
> > > Iup-users@lists.sourceforge.net
>
> > > https://lists.sourceforge.net/lists/listinfo/iup-users
>
> >
>
> >
>
> >
>
> >
> ------------------------------------------------------------------------------
>
> > _______________________________________________
>
> > Iup-users mailing list
>
> > Iup-users@lists.sourceforge.net
>
> > https://lists.sourceforge.net/lists/listinfo/iup-users
>
>
>
> -------------- next part --------------
>
> An HTML attachment was scrubbed...
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>
>
> ------------------------------
>
>
>
>
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>
>
>
>
>
> ------------------------------
>
>
>
> _______________________________________________
>
> Iup-users mailing list
>
> Iup-users@lists.sourceforge.net
>
> https://lists.sourceforge.net/lists/listinfo/iup-users
>
>
>
>
>
> End of Iup-users Digest, Vol 77, Issue 2
>
> ****************************************
>
>
>
>
>
> ------------------------------------------------------------------------------
>
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> Full-scale, agent-less Infrastructure Monitoring from a single dashboard
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