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Re: cyg_thread_delay doesn't seem to be working
- From: Grant Edwards <grant dot b dot edwards at gmail dot com>
- To: ecos-discuss at sources dot redhat dot com
- Date: Tue, 1 Jun 2010 00:35:03 +0000 (UTC)
- Subject: [ECOS] Re: cyg_thread_delay doesn't seem to be working
- Connect(): No such file or directory
- References: <AANLkTilGSSklRvyaMdQPrLAfss6ssmcPOJutS7HYWSfE@mail.gmail.com>
On 2010-06-01, Aziz Bodal <azizbodal@gmail.com> wrote:
> I am trying to used the cyg_thread_delay function in my cyg_user_start
> function however it does not seem applying the delay. I am running the
> following snippet and I do not see the output of cyg_current_time()
> incrementing or even pausing. The cyg_current_time() always seems to
> be 0 when I try to output it using printf. What am I doing wrong?
You can't use those routines in cyg_user_start() where the scheduler
and timer interrupt system aren't running. Those only start after
cyg_user_start() returns.
Many years ago, there was a "System Startup chapter in the manual that
explained that sort of thing:
http://ecos.sourceware.org/docs-1.1/ref/ecos-ref/system-startup-cyg-user-start.html
But, that seems to be gone now.
The info on what you can do from cyg_user_start is now found in the
reference manual's "Kernel Overview" Chapter in a section on "Calling
Contexts". Unfortunately, the docs don't have any section numbering
scheme, so it's rather hard to cite them.
--
Grant
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