Re: [Discuss-gnuradio] FIFO file , File sink , File souce

[CEL]

This sentence makes no sense on its own. Please post a whole
description of what you're doing: I'll from now on will ignore your
questions that don't follow that methodology. See also:

http://www.catb.org/esr/faqs/smart-questions.html
https://lists.gnu.org/archive/html/discuss-gnuradio/2017-10/msg00213.ht
ml


On Wed, 2018-06-20 at 14:00 +0000, Amirhosein naseri wrote:
> Another point is :
> 
> If u in python code generated from GRC construct transmit chain completely 
> (definition of blocks and their connections ) and then construct receive 
> chain or vise versa , u can use both chain in same flowgragh ......
> 
> 
> 
> On Wednesday, June 20, 2018, 4:55:31 PM GMT+4:30, Müller, Marcus (CEL) 
> <address@hidden> wrote:
> 
> 
> Please try to keep answers on the list.
> Also, it's pretty frustrating to have helped you, but not knowing how, and 
> also, doubting you do something sensible.
> 
> Best regards,
> Marcus
> 
> On Wed, 2018-06-20 at 12:23 +0000, Amirhosein naseri wrote:
> > Tnx Marcus for your answers
> > 
> > I split flowgraph in two part and it worked ...
> > and it does'nt matter run witch flowgraph first 
> > 
> > 
> > Best Regards.
> > 
> > On Wednesday, June 20, 2018, 4:49:56 PM GMT+4:30, Müller, Marcus (CEL) 
> > <address@hidden> wrote:
> > 
> > 
> > Again, can't tell what you're trying to do, can't help you! Describe
> > what problem you're trying to solve.
> > 
> > On Wed, 2018-06-20 at 12:15 +0000, Amirhosein naseri wrote:
> > > The flowgraph i mentioned was a simplified version of my work ...
> > > 
> > > I can seprate it in two flowgraph, so in this situation i must run which 
> > > side of transfer first??
> > > 
> > > On Wednesday, June 20, 2018, 4:40:06 PM GMT+4:30, Müller, Marcus (CEL) 
> > > <address@hidden> wrote:
> > > 
> > > 
> > > Well, I don't know what problem you're solving. It works if you're not
> > > doing this in the same flow graph.
> > > 
> > > On Wed, 2018-06-20 at 12:09 +0000, Amirhosein naseri wrote:
> > > > Tnx Marcus for replying 
> > > > 
> > > > so based on what u said ... we can not use such configuration with FIFO 
> > > > , is it ture???
> > > > if NO , what is the solution???
> > > > 
> > > > On Wednesday, June 20, 2018, 4:28:52 PM GMT+4:30, Müller, Marcus (CEL) 
> > > > <address@hidden> wrote:
> > > > 
> > > > 
> > > > That's normal FIFO behaviour! From `man 3 mkfifo`:
> > > > 
> > > > > Opening a FIFO for reading normally blocks until some other process
> > > > opens  the  same  FIFO for writing, and vice versa. 
> > > > 
> > > > Remember, the GRC file is just converted to a Python program, in which
> > > > the different blocks are instantiated sequentially. Now, the problem
> > > > follows is that you can't even initialize the file source if the file
> > > > sink doesn't finish initializing, or the other way around, whichever
> > > > comes first.
> > > > 
> > > > Best regards,
> > > > Marcus
> > > > 
> > > > On Wed, 2018-06-20 at 10:52 +0000, Amirhosein naseri wrote:
> > > > > Hi everybody,
> > > > > 
> > > > > I have a simple GRC like this:
> > > > > 
> > > > > Signal Source ------> Throttle ------> File Sink
> > > > > File Source ------> Throttle -----> Qt Freq Sink
> > > > > 
> > > > > and i have a Piped File with mkfifo that GRC work with it. but when i 
> > > > > run GRC , it freezes ....... Why???
> > > > > 
> > > > > 
> > > > > Tnx??
> > > > 
> > > > > _______________________________________________
> > > > > Discuss-gnuradio mailing list
> > > > > address@hidden
> > > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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