bsd/dev/ppc/chud/chud_process.c

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30
  31 #include <sys/systm.h>
  32 #include <sys/proc_internal.h>
  33 #include <sys/vnode_internal.h> // vn_getpath()
  34
  35 __private_extern__
  36 int chudxnu_pid_for_task(task_t task)
  37 {
  38     struct proc *p;
  39
  40     if(task!=TASK_NULL) {
  41         p = (struct proc *)(get_bsdtask_info(task));
  42         if(p) {
  43             return (p->p_pid);
  44         }
  45     }
  46     return -1;
  47 }
  48
  49 __private_extern__
  50 task_t chudxnu_task_for_pid(int pid)
  51 {
  52     struct proc *p = pfind(pid);
  53     if(p) {
  54         return p->task;
  55     }
  56     return TASK_NULL;
  57 }
  58
  59 __private_extern__
  60 int chudxnu_current_pid(void)
  61 {
  62     return current_proc()->p_pid;
  63 }