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  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <sys/systm.h>
  25 #include <sys/proc_internal.h>
  26 #include <sys/vnode_internal.h> // vn_getpath()
  27
  28 __private_extern__
  29 int chudxnu_pid_for_task(task_t task)
  30 {
  31     struct proc *p;
  32
  33     if(task!=TASK_NULL) {
  34         p = (struct proc *)(get_bsdtask_info(task));
  35         if(p) {
  36             return (p->p_pid);
  37         }
  38     }
  39     return -1;
  40 }
  41
  42 __private_extern__
  43 task_t chudxnu_task_for_pid(int pid)
  44 {
  45     struct proc *p = pfind(pid);
  46     if(p) {
  47         return p->task;
  48     }
  49     return TASK_NULL;
  50 }
  51
  52 __private_extern__
  53 int chudxnu_current_pid(void)
  54 {
  55     return current_proc()->p_pid;
  56 }