bsd/dev/ppc/chud/chud_process.c

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #include <sys/systm.h>
  24 #include <sys/proc_internal.h>
  25 #include <sys/vnode_internal.h> // vn_getpath()
  26
  27 __private_extern__
  28 int chudxnu_pid_for_task(task_t task)
  29 {
  30     struct proc *p;
  31
  32     if(task!=TASK_NULL) {
  33         p = (struct proc *)(get_bsdtask_info(task));
  34         if(p) {
  35             return (p->p_pid);
  36         }
  37     }
  38     return -1;
  39 }
  40
  41 __private_extern__
  42 task_t chudxnu_task_for_pid(int pid)
  43 {
  44     struct proc *p = pfind(pid);
  45     if(p) {
  46         return p->task;
  47     }
  48     return TASK_NULL;
  49 }
  50
  51 __private_extern__
  52 int chudxnu_current_pid(void)
  53 {
  54     return current_proc()->p_pid;
  55 }