bsd/dev/ppc/chud/chud_process.c

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_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. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <sys/systm.h>
  30 #include <sys/proc_internal.h>
  31 #include <sys/vnode_internal.h> // vn_getpath()
  32
  33 __private_extern__
  34 int chudxnu_pid_for_task(task_t task)
  35 {
  36     struct proc *p;
  37
  38     if(task!=TASK_NULL) {
  39         p = (struct proc *)(get_bsdtask_info(task));
  40         if(p) {
  41             return (p->p_pid);
  42         }
  43     }
  44     return -1;
  45 }
  46
  47 __private_extern__
  48 task_t chudxnu_task_for_pid(int pid)
  49 {
  50     struct proc *p = pfind(pid);
  51     if(p) {
  52         return p->task;
  53     }
  54     return TASK_NULL;
  55 }
  56
  57 __private_extern__
  58 int chudxnu_current_pid(void)
  59 {
  60     return current_proc()->p_pid;
  61 }