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Re: Synchronization
- From: Jesper Skov <jskov at redhat dot com>
- To: Schmidt Henning Larsen <HenningLS at danfoss dot com>
- Cc: "'ecos-discuss at sources dot redhat dot com'" <ecos-discuss at sources dot redhat dot com>
- Date: 16 Nov 2001 09:35:59 +0100
- Subject: Re: [ECOS] Synchronization
- References: <829F632D2F25D411B6920008C716F831025B8112@dd01-e01.drives.danfoss.dk>
>>>>> "Schmidt" == Schmidt Henning Larsen <HenningLS@danfoss.com> writes:
Schmidt> Hi What is the difference between cyg_drv_mutex_unlock and
Schmidt> cyg_mutex_unlock ?
The _drv_ functions (both lock and unlock) provide fallback
implementations when the kernel isn't present.
Schmidt> Can I call isig_sem( ID semid ) in an ISR or DSR ?
See http://sources.redhat.com/ecos/docs-latest/ref/ecos-ref.13.html#pgfId=1080346
You can only call the signal function of a conditional variable from
the DSR. So I guess the answer is no.
Jesper