Re: [Linphone-users] Unreliable results from linphonecsh.exe on multiple commands

[Adam Granger]

Some more information...

There are two distinct issues here... The truncation, and sometimes pipe
errors...

The truncation happens all the time if you just run generic "soundcard
list" repeatedly at 5 second intervals. I suspect it effects all commands,
but just more obvious as "soundcard list" as a lot of text to return...

I've run this on a slightly different Windows 7 machine, and in that case
the error returned is "ERROR: Failed to connect pipe: Result too large"
instead of "ERROR: Failed to connect pipe: Unknown"

I've also been looking at the source code, stumbled across the following...

/*
 * warning: on win32 ortp_server_pipe_accept_client() might return
INVALID_HANDLE_VALUE without
 * any specific error, this happens when ortp_server_pipe_close() is
called on another pipe.
 * This pipe api is not thread-safe.
*/

Is this relevant?

Regards,

Adam.




> Following on from my previous post I've ditched attempts to write into
> stdin of linphonec.exe, instead I'm using linphonecsh.exe
>
> However, I have found if I execute two commands in quick succession then
> the results from the second command are unreliable, sometimes OK,
> sometimes truncated and sometimes I get a pipe error...
>
> ==== Example foo.bat ====
>
> "C:\Program Files (x86)\Linphone\bin\linphonecsh.exe" generic "webcam
> list"
> "C:\Program Files (x86)\Linphone\bin\linphonecsh.exe" generic "soundcard
> list"
> pause
>
>
> ===== expected result seen sometimes ======
>
> C:\adam\linphone-test>"C:\Program Files
> (x86)\Linphone\bin\linphonecsh.exe" gene
> ric "webcam list"
> 0: StaticImage: Static picture
>
> C:\adam\linphone-test>"C:\Program Files
> (x86)\Linphone\bin\linphonecsh.exe" gene
> ric "soundcard list"
> 0: WASAPI: Microphone (Realtek High Definition Audio)
> 1: WASAPI: Stereo Mix (Realtek High Definition Audio)
> 2: WASAPI: Speakers/Headphones (Realtek High Definition Audio)
> 3: WINSND: Microphone (Realtek High Defini
> 4: WINSND: Speakers/Headphones (Realtek Hi
> 5: WINSND: Stereo Mix (Realtek High Defini
>
> =======sometimes second output is truncated...======
>
> C:\adam\linphone-test>"C:\Program Files
> (x86)\Linphone\bin\linphonecsh.exe" gene
> ric "webcam list"
> 0: StaticImage: Static picture
>
> C:\adam\linphone-test>"C:\Program Files
> (x86)\Linphone\bin\linphonecsh.exe" gene
> ric "soundcard list"
> 0: WASAPI: Microphone (Realtek High Definition Audio)
>
> ===== sometimes second linphonecsh.exe reports a pipe error =====
>
> C:\adam\linphone-test>"C:\Program Files
> (x86)\Linphone\bin\linphonecsh.exe" gene
> ric "webcam list"
> 0: StaticImage: Static picture
>
> C:\adam\linphone-test>"C:\Program Files
> (x86)\Linphone\bin\linphonecsh.exe" gene
> ric "soundcard list"
> ERROR: Failed to connect pipe: No error
>
>
> I'm using linphone 3.9.1 on Windows 7. I just need a reliable programatic
> way to control linphone externally like I had in 3.7.0. Please can someone
> advise....
>
> Many thanks,
>
> Adam.
>
>
>
>
>
>
>
>
>
>
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