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Subject: Re: pthread_create and priorities
From: Robert Collins <robert DOT collins AT itdomain DOT com DOT au>
To: Timothy Gee <timmygee AT us DOT ibm DOT com>
Cc: cygwin AT cygwin DOT com
In-Reply-To: <OFE5BEA8FF.569DAB4A-ON85256A9C.0065FA13@raleigh.ibm.com>
References: <OFE5BEA8FF DOT 569DAB4A-ON85256A9C DOT 0065FA13 AT raleigh DOT ibm DOT com>
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Message-Id: <996816284.9688.7.camel@lifelesswks>
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Date: 03 Aug 2001 15:25:36 +1000
X-OriginalArrivalTime: 03 Aug 2001 05:11:27.0485 (UTC) FILETIME=[BFA02AD0:01C11BDA]

On 02 Aug 2001 14:49:28 -0400, Timothy Gee wrote:
> I have looked through the achieves and haven't seen this addressed.
> 
> I want to start up a pthread with a given priority. The documentation seems
> clear enough, however, the code I wrote doesn't work. The thread always
> starts with a default priority. I can use a similar procedure within the
> thread to adjust priority and that works. What have I overlooked? I am
> running DLL 1.3.2 on Win NT (Patch 5.0, I believe).
> 
Quoting from the HEAD thread.cc file:

In pthread::create:
   {
     /* FIXME: set the priority appropriately for system contention
scope */
     if (attr.inheritsched == PTHREAD_EXPLICIT_SCHED)
       {
         /* FIXME: set the scheduling settings for the new thread */
         /* sched_thread_setparam (win32_obj_id, attr.schedparam); */
       }
     ResumeThread (win32_obj_id);
   }

So the answer is: It's not implemented yet :-/.

given the code to do it is present, but commented, I'd suggest I
encountered a bug with it, and disabled it for reliability -
unfortunately I don't recall what issue I did have.

Rob


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