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Re: The threading specs in the standard: a new catastrophe

From Ian Collins <ian-news@hotmail.com>
Newsgroups comp.std.c, comp.lang.c
Subject Re: The threading specs in the standard: a new catastrophe
Date 2011-07-08 09:14 +1200
Message-ID <97mluqFbcvU6@mid.individual.net> (permalink)
References <iv422a$33k$1@speranza.aioe.org> <97m59uF1nsU1@mid.individual.net>

Cross-posted to 2 groups.

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On 07/ 8/11 04:31 AM, Wojtek Lerch wrote:
> On 07/07/2011 6:33 AM, jacob navia wrote:
> ....
>> 2) The proposed functions are absurd.
>>
>> Take, for instance, nothing less than the thread creation function
>> thrd_create:
>>
>> int thrd_create(thrd_t *thr, thrd_start_t func,void *arg);
>>
>> As you can see, there are *no arguments that can be passed to the
>> underlying operating system* to further specify the newly created
>> thread. (The "args" arument is an argument for the thread).
>>
>> The pthreads standard (POSIX) proposes an "attributes" argument. The
>> Microsoft threads propose a "security attributes" and a set of flags
>> that further specify the newly created thread. The C API proposes
>> NOTHING so it is impossible to use.
>
> Do you find fopen() absurd and impossible to use too?  Or are file or
> stream attributes (such as the POSIX permission bits, or O_EXCL) less
> important to you than some of the thread attributes that POSIX or
> Windows have?

Is really an appropriate analogy?  Using fopen or open is an 
implementation detail whereas the choice of thread implementation is a 
pretty fundamental design decision.

I agree there are similarities.  Both filesystem I/O and threading do 
require some degree of awareness of the operating environment, but I'd 
argue that dependency is stronger with threading.

 From a pthreads user's perspective the proposed API is close enough to 
pthreads with default options it be usable.  Provided implementations 
provide a means of mixing native and C1x thread, there shouldn't be many 
barriers to their adoption.  For example, on Solaris older native 
threads are compatible with pthreads, so the two can be mixed in the 
same application.

-- 
Ian Collins

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Thread

The threading specs in the standard: a new catastrophe jacob navia <jacob@spamsink.net> - 2011-07-07 12:33 +0200
  Re: The threading specs in the standard: a new catastrophe Juha Niskanen <juniskan@paju.oulu.fi.nospam> - 2011-07-07 12:46 +0000
  Re: The threading specs in the standard: a new catastrophe Todd Carnes <toddcarnes@gmail.com> - 2011-07-07 13:12 +0000
    Re: The threading specs in the standard: a new catastrophe jacob navia <jacob@spamsink.net> - 2011-07-07 17:11 +0200
      Re: The threading specs in the standard: a new catastrophe lawrence.jones@siemens.com - 2011-07-08 09:23 -0400
      Re: The threading specs in the standard: a new catastrophe Todd Carnes <toddcarnes@gmail.com> - 2011-07-08 15:20 +0000
  Re: The threading specs in the standard: a new catastrophe "christian.bau" <christian.bau@cbau.wanadoo.co.uk> - 2011-07-07 07:36 -0700
    Re: The threading specs in the standard: a new catastrophe jacob navia <jacob@spamsink.net> - 2011-07-07 17:09 +0200
      Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-07 18:00 +0200
        Re: The threading specs in the standard: a new catastrophe jacob navia <jacob@spamsink.net> - 2011-07-07 18:20 +0200
  Re: The threading specs in the standard: a new catastrophe Wojtek Lerch <wojtek_l@yahoo.ca> - 2011-07-07 12:31 -0400
    Re: The threading specs in the standard: a new catastrophe Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-07-07 09:40 -0700
      Re: The threading specs in the standard: a new catastrophe Wojtek Lerch <wojtek_l@yahoo.ca> - 2011-07-07 14:42 -0400
        Re: The threading specs in the standard: a new catastrophe Chad <cdalten@gmail.com> - 2011-07-07 12:03 -0700
          Re: The threading specs in the standard: a new catastrophe Angel <angel+news@spamcop.net> - 2011-07-07 19:27 +0000
            Re: The threading specs in the standard: a new catastrophe Chad <cdalten@gmail.com> - 2011-07-07 12:55 -0700
              Re: The threading specs in the standard: a new catastrophe Angel <angel+news@spamcop.net> - 2011-07-07 20:13 +0000
    Re: The threading specs in the standard: a new catastrophe Ian Collins <ian-news@hotmail.com> - 2011-07-08 09:14 +1200
      Re: The threading specs in the standard: a new catastrophe Wojtek Lerch <wojtek_l@yahoo.ca> - 2011-07-07 23:58 -0400
        Re: The threading specs in the standard: a new catastrophe Ian Collins <ian-news@hotmail.com> - 2011-07-08 16:24 +1200
      Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-08 12:14 +0200
        Re: The threading specs in the standard: a new catastrophe Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-07-10 00:02 +0200
          Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-10 14:47 +0200
            Re: The threading specs in the standard: a new catastrophe Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-07-11 21:05 +0200
              Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-11 22:50 +0200
                Re: The threading specs in the standard: a new catastrophe Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-07-11 23:56 +0200
                Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-12 07:50 +0200
                Re: The threading specs in the standard: a new catastrophe Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-07-16 01:14 +0200
                Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-16 10:08 +0200
                Re: The threading specs in the standard: a new catastrophe Miles Bader <miles@gnu.org> - 2011-07-18 11:11 +0900
                Re: The threading specs in the standard: a new catastrophe Alexander Terekhov <terekhov@web.de> - 2011-07-18 21:50 +0200
                Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-19 08:36 +0200
                Re: The threading specs in the standard: a new catastrophe Alexander Terekhov <terekhov@web.de> - 2011-07-21 11:56 +0200
                Re: The threading specs in the standard: a new catastrophe Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-07-22 20:31 +0200
                Re: The threading specs in the standard: a new catastrophe Alexander Terekhov <terekhov@web.de> - 2011-07-22 21:36 +0200
                Re: The threading specs in the standard: a new catastrophe Jens Gustedt <Jens.Gustedt@loria.fr> - 2011-07-23 10:50 +0200
                Re: The threading specs in the standard: a new catastrophe Alexander Terekhov <terekhov@web.de> - 2011-07-23 20:29 +0200
                Re: The threading specs in the standard... Alexander Terekhov <terekhov@web.de> - 2011-08-03 15:50 +0200
  Re: The threading specs in the standard: a new catastrophe Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-07-07 23:07 +0200
    Re: The threading specs in the standard: a new catastrophe jacob navia <jacob@spamsink.net> - 2011-07-07 23:32 +0200
      Re: The threading specs in the standard: a new catastrophe jameskuyper <jameskuyper@gmail.com> - 2011-07-07 15:25 -0700
        Re: The threading specs in the standard: a new catastrophe sfuerst <svfuerst@gmail.com> - 2011-07-07 16:12 -0700
          Re: The threading specs in the standard: a new catastrophe James Kuyper <jameskuyper@verizon.net> - 2011-07-07 22:41 -0400
          Re: The threading specs in the standard: a new catastrophe "Chris M. Thomasson" <cristom@charter.net> - 2011-07-08 12:47 -0700
            Re: The threading specs in the standard: a new catastrophe sfuerst <svfuerst@gmail.com> - 2011-07-08 13:11 -0700
              Re: The threading specs in the standard: a new catastrophe "Chris M. Thomasson" <cristom@charter.net> - 2011-07-08 16:56 -0700
              Re: The threading specs in the standard: a new catastrophe Marcin Grzegorczyk <mgrzegor@poczta.onet.pl> - 2011-07-09 23:55 +0200
                Re: The threading specs in the standard: a new catastrophe sfuerst <svfuerst@gmail.com> - 2011-07-09 18:40 -0700
      Re: The threading specs in the standard: a new catastrophe "MikeP" <mp011011@some.org> - 2011-07-07 23:32 -0500
      Re: The threading specs in the standard: a new catastrophe lawrence.jones@siemens.com - 2011-07-08 10:09 -0400
        Re: The threading specs in the standard: a new catastrophe Shao Miller <sha0.miller@gmail.com> - 2011-07-08 10:31 -0400
  Re: The threading specs in the standard: a new catastrophe Shao Miller <sha0.miller@gmail.com> - 2011-07-08 00:38 -0400
  Re: The threading specs in the standard: a new catastrophe Ian Collins <ian-news@hotmail.com> - 2011-07-08 17:10 +1200
    Re: The threading specs in the standard: a new catastrophe James Kuyper <jameskuyper@verizon.net> - 2011-07-08 07:46 -0400
      Re: The threading specs in the standard: a new catastrophe Ian Collins <ian-news@hotmail.com> - 2011-07-08 23:52 +1200
        Re: The threading specs in the standard: a new catastrophe James Kuyper <jameskuyper@verizon.net> - 2011-07-08 08:23 -0400
          Re: The threading specs in the standard: a new catastrophe jacob navia <jacob@spamsink.net> - 2011-07-08 14:54 +0200
          Re: The threading specs in the standard: a new catastrophe Ian Collins <ian-news@hotmail.com> - 2011-07-09 08:26 +1200
        Re: The threading specs in the standard: a new catastrophe Seebs <usenet-nospam@seebs.net> - 2011-07-08 14:47 +0000
  Re: The threading specs in the standard: a new catastrophe Juha Niskanen <juniskan@paju.oulu.fi.nospam> - 2011-07-08 07:52 +0000

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