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sigaction error
OpenQNX Forum Index » General » QNX Newsgroups » qnx.rtos
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dadji
Post subject: sigaction error  PostPosted: Dec 21, 2007 - 04:52 PM
Guest
Hello,
can it be that the sigaction() funtion for signal handling is not supported
on qnx6.3.2. This function returns an error. strerror(errno) return "Not
supported". However the same code works on another system with qnx6.3.0,
SP2.
merry Christmas
Yannick
 
   
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David Gibbs
Post subject: Re: sigaction error  PostPosted: Dec 21, 2007 - 06:14 PM
Guest
dadji <ydadji@hotmail.com> wrote:
Quote:
Hello,
can it be that the sigaction() funtion for signal handling is not supported
on qnx6.3.2. This function returns an error. strerror(errno) return "Not
supported". However the same code works on another system with qnx6.3.0,
SP2.

There is no intention or expectation that sigaction() will stop working with
6.3.2, and I have used it.

Can you post your call (with all the setup structures) that has stopped
working?

Is it possible you've not initialized one of the structures passed
in, and that you were lucky to get "safe" values in an earlier compile, but
not with a more recent build?

-David

Quote:
merry Christmas
Yannick



--
David Gibbs
QNX Training Services
dagibbs@qnx.com
 
   
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maschoen
Post subject: RE: sigaction error  PostPosted: Dec 21, 2007 - 07:21 PM
QNX Master


Joined: Jun 25, 2003
Posts: 1027
I'm not at my system to test this right now, but I would imagine a lot of things would break if this were the case. 6.3.2 has been out long enough that this is unlikely. Maybe it is something more circumstantial, a bad signal number or perhaps trying to use a signal which requires super user privileges when they are not available?

Maybe post your sigaction code?
 
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dadji
Post subject: Re: sigaction error  PostPosted: Jan 02, 2008 - 10:42 AM
Guest
hello David,
thanks for the support. the file contains the piece of code with the
sigaction call.

Yannick

"David Gibbs" <dagibbs@qnx.com> schrieb im Newsbeitrag
news:fkgvpq$quh$1@inn.qnx.com...
Quote:
dadji <ydadji@hotmail.com> wrote:
Hello,
can it be that the sigaction() funtion for signal handling is not
supported
on qnx6.3.2. This function returns an error. strerror(errno) return "Not
supported". However the same code works on another system with qnx6.3.0,
SP2.

There is no intention or expectation that sigaction() will stop working
with
6.3.2, and I have used it.

Can you post your call (with all the setup structures) that has stopped
working?

Is it possible you've not initialized one of the structures passed
in, and that you were lucky to get "safe" values in an earlier compile,
but
not with a more recent build?

-David

merry Christmas
Yannick



--
David Gibbs
QNX Training Services
dagibbs@qnx.com


begin 666 NewsGrouptext.txt
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`
end
 
   
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dadji
Post subject: Re: sigaction error  PostPosted: Jan 02, 2008 - 01:53 PM
Guest
Hello,
i found the error. it didn't set thte sigaction structure element "sa_flags"
to 0. the default value was 0xffffffff.
Now that i set it to 0, every thing is functioning very well.

Thanks for your help.
Yannick

"David Gibbs" <dagibbs@qnx.com> schrieb im Newsbeitrag
news:fkgvpq$quh$1@inn.qnx.com...
Quote:
dadji <ydadji@hotmail.com> wrote:
Hello,
can it be that the sigaction() funtion for signal handling is not
supported
on qnx6.3.2. This function returns an error. strerror(errno) return "Not
supported". However the same code works on another system with qnx6.3.0,
SP2.

There is no intention or expectation that sigaction() will stop working
with
6.3.2, and I have used it.

Can you post your call (with all the setup structures) that has stopped
working?

Is it possible you've not initialized one of the structures passed
in, and that you were lucky to get "safe" values in an earlier compile,
but
not with a more recent build?

-David

merry Christmas
Yannick



--
David Gibbs
QNX Training Services
dagibbs@qnx.com
 
   
Reply with quote Back to top
David Gibbs
Post subject: Re: sigaction error  PostPosted: Jan 02, 2008 - 08:20 PM
Guest
dadji <ydadji@hotmail.com> wrote:
Quote:
Hello,
i found the error. it didn't set thte sigaction structure element "sa_flags"
to 0. the default value was 0xffffffff.
Now that i set it to 0, every thing is functioning very well.

Good.

Quote:
Thanks for your help.

You're welcome.

-David

Quote:

Is it possible you've not initialized one of the structures passed
in, and that you were lucky to get "safe" values in an earlier compile,
but
not with a more recent build?

--
David Gibbs
QNX Training Services
dagibbs@qnx.com
 
   
Reply with quote Back to top
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