Re: ipc, sockets and windows sp2

[Vincent Dedun <kraken at smousseland dot com>]

Corinna Vinschen wrote :

> On Apr  4 08:52, Vincent Dedun wrote:
> > However, semaphores still doesn't work properly.
> > There is no more problem with semop not waiting, but with quick
> > semaphores locking unlocking.
> >
> > I attach a new testcase, which is the same as previous one, except 
> > each
> > child task will lock the semaphore, wait 100ms, then release the
> > semaphore and die. Each time a child dies, a new one is created to 
> > keep
> > 10 running childs.
>
> I'm wondering, since you're building Cygwin from source anyway, if 
> you're
> not interested to debug this further or even track it down to its 
> source?

i have no idea how to do this, i'm not a good system programmer.

further more, i have a slow computer, and recompiling cygwin is long.
I even don't know how to active debugging (dprintf) on cygwin dll.

I just saw a strange stuff : in sysv_sem.cc (cygserver) at end of semop 
function (:done2 label), the mutex is released after waking up waiting 
process, shouldn't it be the inverse ?

i tried to test this, but when i modify cygwin sources and compil, my 
cygwin0.dll is not updated, i don't want to recompil everything each 
time, it take too longs.

Kraken


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