This is the mail archive of the
cygwin-patches@sources.redhat.com
mailing list for the Cygwin project.
Re: signal semaphores inheritance
Hi!
Tuesday, 20 February, 2001 Corinna Vinschen cygwin-patches@cygwin.com wrote:
CV> On Tue, Feb 20, 2001 at 07:24:09PM +0300, Egor Duda wrote:
>> Hi!
>>
>> if ntsec is on and cygwin app a.exe (with pid x) starts non-cygwin
>> app b.exe, b.exe inherits cygwin1S3.sigcatch.x semaphore. if a.exe
>> dies and b.exe continue execution, and if new cygwin app c.exe
>> got pid x it, fails to create sigcatch semaphore. looks like typo in
>> getsem() to me. is this patch ok?
CV> Did you check it with apps chenging the user context? AFAIR I had
CV> a reason using an inheritable SD...
hmm. i haven't noticed any differences. i may have missed something,
though. but, if this handle is supposed to be inheritable, shouldn't
it be DuplicateHandle()'d in child process? I've grepped through
sources and haven't find any DuplicateHandle() used on semaphores. so
even if this handle is made inheritable, i don't see the place
where child is using it.
Egor. mailto:deo@logos-m.ru ICQ 5165414 FidoNet 2:5020/496.19