/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.   The GNU C Library is free software; you can redistribute it and/or   modify it under the terms of the GNU Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.   The GNU C Library is distributed in the hope that it will be useful,   but WITHOUT ANY WARRANTY; without even the implied warranty of   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#include <unistd.h>#include <tls.h>#include <sysdep.h>#ifndef NOT_IN_libcstatic inline __attribute__((always_inline)) pid_t really_getpid (pid_t oldval);static inline __attribute__((always_inline)) pid_treally_getpid (pid_t oldval){  if (__builtin_expect (oldval == 0, 1))    {      pid_t selftid = THREAD_GETMEM (THREAD_SELF, tid);      if (__builtin_expect (selftid != 0, 1))	return selftid;    }  INTERNAL_SYSCALL_DECL (err);  pid_t result = INTERNAL_SYSCALL (getpid, err, 0);  /* We do not set the PID field in the TID here since we might be     called from a signal handler while the thread executes fork.  */  if (oldval == 0)    THREAD_SETMEM (THREAD_SELF, tid, result);  return result;}#endifpid_t__getpid (void){#ifdef NOT_IN_libc  INTERNAL_SYSCALL_DECL (err);  pid_t result = INTERNAL_SYSCALL (getpid, err, 0);#else  pid_t result = THREAD_GETMEM (THREAD_SELF, pid);  if (__builtin_expect (result <= 0, 0))    result = really_getpid (result);#endif  return result;}libc_hidden_def (__getpid)weak_alias (__getpid, getpid)libc_hidden_def (getpid)