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  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 #include <sys/systm.h>
  27 #include <sys/proc.h>
  28
  29 __private_extern__
  30 int chudxnu_pid_for_task(task_t task)
  31 {
  32     struct proc *p;
  33
  34     if(task!=TASK_NULL) {
  35         p = (struct proc *)(get_bsdtask_info(task));
  36         if(p) {
  37             return (p->p_pid);
  38         }
  39     }
  40     return -1;
  41 }
  42
  43 __private_extern__
  44 task_t chudxnu_task_for_pid(int pid)
  45 {
  46     struct proc *p = pfind(pid);
  47     if(p) {
  48         return p->task;
  49     }
  50     return TASK_NULL;
  51 }
  52
  53 __private_extern__
  54 int chudxnu_current_pid(void)
  55 {
  56     return current_proc()->p_pid;
  57 }