RE: pthread-win32 for winCE ?

RE: pthread-win32 for winCE ?

[Bossom, John]

Tristan,
could you be very specific?

The correct solution would be to simulate the missing
functionality on WinCE, NOT restrict the implemention of
Win32 to be only that for WinCE.

i.e.) I don't have WinCE, therefore I don't know what
      is there and what isn't. Please list ALL undefined
      symbols. I want to know if semaphores are supported
	at all or only partially.

Thanks,

John

-----Original Message-----
From: Tristan Savatier [ mailto:tristan@mpegtv.com ]
Sent: Friday, August 06, 1999 3:48 AM
To: bje@cygnus.com; rpj@ise.canberra.edu.au; rjc@trump.net.au;
John.Bossom@cognos.com; anorland@hem2.passagen.se; tml@iki.fi;
Kevin.Ruland@anheuser-busch.com
Cc: Gilles Boccon-Gibod; pthreads-win32@sourceware.cygnus.com
Subject: pthread-win32 for winCE ?


First, I have to congratulate you all for the good work.
I have had no problem using your pthread-win32 to port
a complex multithreaded linux application (a real-time
mpeg video+audio player) to win32.

But I noticed that your implementation currently relies on
some semaphore routines (e.g. ReleaseSemaphore) that do
not exist on WinCE (Windows-CE defines only a subset 
of the Win32 API).

So my question is: how difficult would it be to modify
pthread-win32 so that it could also be used on winCE 
platforms ?

I see two ways for doing that.

- Either change pthread-win32 so that it only calles 
routines that are defined on WinCE,

- Or keep the current implementation, identify the routines
that do not exist on WinCE and  emulate the missing routines
using WinCE primitives (e.g. re-implement the semaphores 
routines using the WinCE API).

What is your opinion on this problem ?

-t

Re: pthread-win32 for winCE ?

[Tristan Savatier]

Bossom, John wrote:
> 
> Tristan,
> could you be very specific?

Not yet: I have noticed that from the documentation,
but have not yet tried to recompile the library with the
WinCE cross compiler.

The doc says that all the Semaphores routines are not implemented.
I suppose that I could implement them (or the subset required)
using mutexes etc. 

> The correct solution would be to simulate the missing
> functionality on WinCE, NOT restrict the implemention of
> Win32 to be only that for WinCE.

Agreed, even though it might not make a lot of differences
in terms of performances.

I will look into that in more details when I return
from vacations, in about 2 weeks.

-t

pthread-win32 for winCE ?

[Tristan Savatier]

First, I have to congratulate you all for the good work.
I have had no problem using your pthread-win32 to port
a complex multithreaded linux application (a real-time
mpeg video+audio player) to win32.

But I noticed that your implementation currently relies on
some semaphore routines (e.g. ReleaseSemaphore) that do
not exist on WinCE (Windows-CE defines only a subset 
of the Win32 API).

So my question is: how difficult would it be to modify
pthread-win32 so that it could also be used on winCE 
platforms ?

I see two ways for doing that.

- Either change pthread-win32 so that it only calles 
routines that are defined on WinCE,

- Or keep the current implementation, identify the routines
that do not exist on WinCE and  emulate the missing routines
using WinCE primitives (e.g. re-implement the semaphores 
routines using the WinCE API).

What is your opinion on this problem ?

-t