Re: possibly ot: thread suspension

James Kanze <>
Tue, 13 May 2008 02:15:38 -0700 (PDT)
On May 13, 1:29 am, "Chris Thomasson" <> wrote:

"Szabolcs Ferenczi" <> wrote in message
On May 12, 9:15 am, Chris Forone <> wrote:

how does a thread suspend itself? is a volatile bool enough,
that is checked after each loop?


If you want to check the return values of the library operations

You must check the return values of pthread calls. IMVHO,
applications that fail to at least check status of pthread
calls are crap.

I more or less agree, but... What do you do if
pthread_mutex_lock() fails? In many cases, the only possible
cause of failure will be a programming error elsewhere, or
insufficient resources. In both cases, most of the time, about
all you can reasonably do is abort with an error message.

(You definitely do have to consider the case, of course. If
pthread_mutex_lock() returns with an error, you do NOT have the

your code will be even more complex.

Why? You can wrap the raw API calls.

Generally, you should have anything at that low a level wrapped
in a class anyway.

James Kanze (GABI Software)
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