namespace of the caller. A call to getpid (2) always returns the PID associated with ... reported by getpid ()), which would break many applications and libraries. To put things an…process can obtain its PID using getpid (2). A PID is represented using the type ... fork (2), getgroups (2), getpgrp (2), getpid (2), getppid (2), getsid (2), kill (2), setegidthis mechanism. function clock_gettime getcpu getpid getppid gettimeofday set_tid_address parisc (hppa) functionswrite the daemon PID (as returned by getpid() ) to a PID file, for example /run/foobar.pidthis PID to the PID returned by getpid (2), to determine whether the eventways, including the following: • Calls to getpid (2) return a different value in each threadgetgroups (2) getpeername (2) getpgrp (2) getpid (2) getppid (2) getsockname (2) getsockopt (2) getuid