102 lines
4.4 KiB
C
102 lines
4.4 KiB
C
/*-
|
|
* Copyright (c) 1980, 1991, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)proc.h 8.1 (Berkeley) 5/31/93
|
|
*/
|
|
|
|
/*
|
|
* Structure for each process the shell knows about:
|
|
* allocated and filled by pcreate.
|
|
* flushed by pflush; freeing always happens at top level
|
|
* so the interrupt level has less to worry about.
|
|
* processes are related to "friends" when in a pipeline;
|
|
* p_friends links makes a circular list of such jobs
|
|
*/
|
|
struct process {
|
|
struct process *p_next; /* next in global "proclist" */
|
|
struct process *p_friends; /* next in job list (or self) */
|
|
struct directory *p_cwd; /* cwd of the job (only in head) */
|
|
short unsigned p_flags; /* various job status flags */
|
|
char p_reason; /* reason for entering this state */
|
|
int p_index; /* shorthand job index */
|
|
int p_pid;
|
|
int p_jobid; /* pid of job leader */
|
|
/* if a job is stopped/background p_jobid gives its pgrp */
|
|
struct timeval p_btime; /* begin time */
|
|
struct timeval p_etime; /* end time */
|
|
struct rusage p_rusage;
|
|
Char *p_command; /* first PMAXLEN chars of command */
|
|
};
|
|
|
|
/* flag values for p_flags */
|
|
#define PRUNNING (1<<0) /* running */
|
|
#define PSTOPPED (1<<1) /* stopped */
|
|
#define PNEXITED (1<<2) /* normally exited */
|
|
#define PAEXITED (1<<3) /* abnormally exited */
|
|
#define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */
|
|
|
|
#define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED)
|
|
#define PNOTIFY (1<<5) /* notify async when done */
|
|
#define PTIME (1<<6) /* job times should be printed */
|
|
#define PAWAITED (1<<7) /* top level is waiting for it */
|
|
#define PFOREGND (1<<8) /* started in shells pgrp */
|
|
#define PDUMPED (1<<9) /* process dumped core */
|
|
#define PERR (1<<10) /* diagnostic output also piped out */
|
|
#define PPOU (1<<11) /* piped output */
|
|
#define PREPORTED (1<<12) /* status has been reported */
|
|
#define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */
|
|
#define PPTIME (1<<14) /* time individual process */
|
|
#define PNEEDNOTE (1<<15) /* notify as soon as practical */
|
|
|
|
#define PMAXLEN 80
|
|
|
|
/* defines for arguments to pprint */
|
|
#define NUMBER 01
|
|
#define NAME 02
|
|
#define REASON 04
|
|
#define AMPERSAND 010
|
|
#define FANCY 020
|
|
#define SHELLDIR 040 /* print shell's dir if not the same */
|
|
#define JOBDIR 0100 /* print job's dir if not the same */
|
|
#define AREASON 0200
|
|
|
|
struct process proclist; /* list head of all processes */
|
|
bool pnoprocesses; /* pchild found nothing to wait for */
|
|
|
|
struct process *pholdjob; /* one level stack of current jobs */
|
|
|
|
struct process *pcurrjob; /* current job */
|
|
struct process *pcurrent; /* current job in table */
|
|
struct process *pprevious; /* previous job in table */
|
|
|
|
int pmaxindex; /* current maximum job index */
|