> The linux kernel does not support the concept of threads (there are > no thread system calls). the only system calls for achieving this > somultaneous mechanism would be fork() and exec(). The pthreads library > used these system calls. you are mistaken. threads (roughly speaking) are two active entities, running in the same address space, so using exec or fork can not (EVER) achieve such behavior. pthread uses the clone system call, which does implements threads (of some kind, anyway). (actually, pthread uses clone with the following flags: flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND. look at man 2 clone for explanations.) -- ======================================================================== nir. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
