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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2013 Nexenta Systems, Inc. All rights reserved.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ifndef _SYS_PROC_H
#define _SYS_PROC_H
#include <sys/time.h>
#include <sys/thread.h>
#include <sys/cred.h>
#include <sys/debug.h>
#include <sys/signal.h>
#include <sys/list.h>
#include <sys/avl.h>
#include <sys/refstr.h>
#ifdef __cplusplus
extern "C" {
#endif
struct pool;
struct task;
struct zone;
/*
* One structure allocated per active process. It contains all
* data needed about the process while the process may be swapped
* out. Other per-process data (user.h) is also inside the proc structure.
* Lightweight-process data (lwp.h) and the kernel stack may be swapped out.
*/
typedef struct proc {
struct cred *p_cred; /* process credentials */
struct pid *p_pidp; /* process ID info */
struct pid *p_pgidp; /* process group ID info */
/*
* Per process lwp and kernel thread stuff
*/
struct zone *p_zone; /* zone in which process lives */
int do_not_use[10];
int p_user[10]; /* (see sys/user.h) */
} proc_t;
#define PROC_T /* headers relying on proc_t are OK */
/* process ID info */
struct pid {
unsigned int pid_prinactive :1;
unsigned int pid_pgorphaned :1;
unsigned int pid_padding :6; /* used to be pid_ref, now an int */
unsigned int pid_prslot :24;
pid_t pid_id;
struct proc *pid_pglink;
struct proc *pid_pgtail;
struct pid *pid_link;
uint_t pid_ref;
};
#define p_pgrp p_pgidp->pid_id
#define p_pid p_pidp->pid_id
#define p_slot p_pidp->pid_prslot
#define p_detached p_pgidp->pid_pgorphaned
#define PID_HOLD(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
++(pidp)->pid_ref;
#define PID_RELE(pidp) ASSERT(MUTEX_HELD(&pidlock)); \
(pidp)->pid_ref > 1 ? \
--(pidp)->pid_ref : pid_rele(pidp);
/*
* Structure containing persistent process lock. The structure and
* macro allow "mutex_enter(&p->p_lock)" to continue working.
*/
struct plock {
kmutex_t pl_lock;
};
#define p_lock p_lockp->pl_lock
extern proc_t p0; /* process 0 */
extern struct plock p0lock; /* p0's plock */
extern struct pid pid0; /* p0's pid */
/*
* This is normally in sunddi.h but
* I didn't want to drag that in here.
*/
pid_t
ddi_get_pid(void);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_PROC_H */
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