On Apr 2 16:21, Daniel Pocock wrote:
> Corinna Vinschen wrote:
>> Did you try?
>>
> I have now had a chance to try it under cygrunsrv from Cygwin 1.5.25 and 1.7
>
> Under 1.5.25, it doesn't work because of the sockets issue
>
> Under 1.7, a new issue is revealed: execve doesn't maintain the same
> process ID, so cygrunsrv thinks the service has actually stopped, and
> the cygrunsrv process exits. This is obviously quite bad.
Huh? The *Windows* PID is not the same after an exec, but the
Cygwin PID is maintained after an exec. Try this:
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <windows.h>
int main(int argc, char **argv)
{
int status;
if (argc > 1)
{
printf ("Execed Child: Cygwin: %d Windows: %lu\n",
getpid (), GetCurrentProcessId ());
return 0;
}
printf ("Parent: Cygwin: %d Windows: %lu\n",
getpid (), GetCurrentProcessId ());
switch (fork ())
{
case 0:
printf ("Forked Child: Cygwin: %d Windows: %lu\n",
getpid (), GetCurrentProcessId ());
execl ("./x", "x", "child", NULL);
break;
default:
break;
}
wait (&status);
return 0;
}
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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