* [ECOS] thread & resources lock
@ 2003-12-12 9:35 fazio
2003-12-12 11:36 ` Andrew Lunn
0 siblings, 1 reply; 2+ messages in thread
From: fazio @ 2003-12-12 9:35 UTC (permalink / raw)
To: ecos-discuss
Hi,
I have a doubt about resouces management used by two threads: one thread writes a
variable and the other one reads its content. Do I have to lock the resource only when I
write it or both in writing and reading?
P.S. I'm using ecos on v850 target.
Thanks.
Teresa Fazio.
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ECOS] thread & resources lock
2003-12-12 9:35 [ECOS] thread & resources lock fazio
@ 2003-12-12 11:36 ` Andrew Lunn
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Lunn @ 2003-12-12 11:36 UTC (permalink / raw)
To: fazio; +Cc: ecos-discuss
On Fri, Dec 12, 2003 at 10:18:11AM +0100, fazio@planetek.it wrote:
> I have a doubt about resouces management used by two threads: one
> thread writes a variable and the other one reads its content. Do I
> have to lock the resource only when I write it or both in writing
> and reading?
I suggest you find a good book about multi-threaded programming and
operating systems. It should cover thinks like this. You need to
understand the background before you look at your specific problem.
Andrew
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Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss
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2003-12-12 9:35 [ECOS] thread & resources lock fazio
2003-12-12 11:36 ` Andrew Lunn
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