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.h>
  25
  26 __private_extern__
  27 int chudxnu_pid_for_task(task_t task)
  28 {
  29     struct proc *p;
  30
  31     if(task!=TASK_NULL) {
  32         p = (struct proc *)(get_bsdtask_info(task));
  33         if(p) {
  34             return (p->p_pid);
  35         }
  36     }
  37     return -1;
  38 }
  39
  40 __private_extern__
  41 task_t chudxnu_task_for_pid(int pid)
  42 {
  43     struct proc *p = pfind(pid);
  44     if(p) {
  45         return p->task;
  46     }
  47     return TASK_NULL;
  48 }
  49
  50 __private_extern__
  51 int chudxnu_current_pid(void)
  52 {
  53     return current_proc()->p_pid;
  54 }