Hi! On Mon, 2008-12-29 at 01:49 +0530, Shyam Burkule wrote: [...] > In windows basic execution unit is thread, and Linux does not > differentiate between thread and process( I mean Linux doesn't give It does as there exists various thread implementations. For "tasks", read another mail in this thread. > special treatment for thread essentially they are normal process > except they share some resource with other process). If I use fork All threads (within the same process) share the same memory and file descriptors table (and perhaps more). I see no difference between Win and Linux (or *BSD). > to create process, does it create thread that run in the same thread > group as parent run or does it create another standalone process? What is a "thread group"? fork(2) creates a new process - read: it creates new memory maps which are copy-on-write-references to the ones of the parent are - and it starts the first "thread" in that process. CreateProcess() does basically the same (IMMSC - it's > 10 years that I programmed WinNT-3.5). > Fork system call is equivalent to clone(SIGCHLD,0, so I think fork > create new standalone process. It does. Bernd -- Firmix Software GmbH http://www.firmix.at/ mobil: +43 664 4416156 fax: +43 1 7890849-55 Embedded Linux Development and Services -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
