/* * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include <sys/systm.h> #include <sys/proc_internal.h> #include <sys/vnode_internal.h> // vn_getpath() #include <kern/task.h> #include <sys/user.h> int chudxnu_pid_for_task(task_t task); task_t chudxnu_task_for_pid(int pid); int chudxnu_current_pid(void); __private_extern__ int chudxnu_pid_for_task(task_t task) { struct proc *p; if(task!=TASK_NULL) { p = (struct proc *)(get_bsdtask_info(task)); if(p) { return (p->p_pid); } } return -1; } __private_extern__ task_t chudxnu_task_for_pid(int pid) { struct proc *p = pfind(pid); if(p) { return p->task; } return TASK_NULL; } __private_extern__ int chudxnu_current_pid(void) { int pid = -1; struct uthread *ut = get_bsdthread_info(current_thread()); task_t t = current_task(); if(t != TASK_NULL) { pid = chudxnu_pid_for_task(t); } else { // no task, so try looking in the uthread and/or proc pid = current_proc()->p_pid; if(ut && ut->uu_proc) { pid = ut->uu_proc->p_pid; } } return pid; }