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Re: POSIX Signals

From: Andrew Lunn <andrew at lunn dot ch>
To: "Ali, Khurram" <Khurram_Ali at mentor dot com>
Cc: eCos Discussion <ecos-discuss at ecos dot sourceware dot org>
Date: Thu, 21 Apr 2005 20:51:08 +0200
Subject: Re: [ECOS] POSIX Signals
References: <32A0F6EE19ECF646A9CF370C3AB15EBE01263FA6@SVR-ALH-EXC-02.mgc.mentorg.com>

On Tue, Apr 19, 2005 at 03:04:49PM -0500, Ali, Khurram wrote:
> Hi,
> 
> In my application, I am using signal numbered 18 to 31. Is that allowed?
> 
> I send a signal 31 using kill(0, 31). My signal 31 has an action handler
> that gets called. I then call sigwait from another thread with 31 added
> to sigset_t. However, sigwait does not return. If I call kill and
> sigwait from the same thread, things work okay.
> 
> Am I doing something wrong or am I missing something?

Is this other thread also a posix thread?

It is probably worth single stepping through kill() to see what it
does. That might give you a clue as to why your code is not working.

        Andrew

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References:
- POSIX Signals
  - From: Ali, Khurram

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