1 /* $OpenBSD: proc.h,v 1.2 1996/06/23 14:19:29 deraadt Exp $ */ 2 /* $NetBSD: proc.h,v 1.7 1995/04/29 23:21:35 mycroft Exp $ */ 3 4 /*- 5 * Copyright (c) 1980, 1991, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)proc.h 8.1 (Berkeley) 5/31/93 37 */ 38 39 /* 40 * Structure for each process the shell knows about: 41 * allocated and filled by pcreate. 42 * flushed by pflush; freeing always happens at top level 43 * so the interrupt level has less to worry about. 44 * processes are related to "friends" when in a pipeline; 45 * p_friends links makes a circular list of such jobs 46 */ 47 struct process { 48 struct process *p_next; /* next in global "proclist" */ 49 struct process *p_friends; /* next in job list (or self) */ 50 struct directory *p_cwd; /* cwd of the job (only in head) */ 51 short unsigned p_flags; /* various job status flags */ 52 char p_reason; /* reason for entering this state */ 53 int p_index; /* shorthand job index */ 54 pid_t p_pid; 55 pid_t p_jobid; /* pid of job leader */ 56 /* if a job is stopped/background p_jobid gives its pgrp */ 57 struct timeval p_btime; /* begin time */ 58 struct timeval p_etime; /* end time */ 59 struct rusage p_rusage; 60 Char *p_command; /* first PMAXLEN chars of command */ 61 }; 62 63 /* flag values for p_flags */ 64 #define PRUNNING (1<<0) /* running */ 65 #define PSTOPPED (1<<1) /* stopped */ 66 #define PNEXITED (1<<2) /* normally exited */ 67 #define PAEXITED (1<<3) /* abnormally exited */ 68 #define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */ 69 70 #define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED) 71 #define PNOTIFY (1<<5) /* notify async when done */ 72 #define PTIME (1<<6) /* job times should be printed */ 73 #define PAWAITED (1<<7) /* top level is waiting for it */ 74 #define PFOREGND (1<<8) /* started in shells pgrp */ 75 #define PDUMPED (1<<9) /* process dumped core */ 76 #define PERR (1<<10) /* diagnostic output also piped out */ 77 #define PPOU (1<<11) /* piped output */ 78 #define PREPORTED (1<<12) /* status has been reported */ 79 #define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */ 80 #define PPTIME (1<<14) /* time individual process */ 81 #define PNEEDNOTE (1<<15) /* notify as soon as practical */ 82 83 #define PMAXLEN 80 84 85 /* defines for arguments to pprint */ 86 #define NUMBER 01 87 #define NAME 02 88 #define REASON 04 89 #define AMPERSAND 010 90 #define FANCY 020 91 #define SHELLDIR 040 /* print shell's dir if not the same */ 92 #define JOBDIR 0100 /* print job's dir if not the same */ 93 #define AREASON 0200 94 95 struct process proclist; /* list head of all processes */ 96 bool pnoprocesses; /* pchild found nothing to wait for */ 97 98 struct process *pholdjob; /* one level stack of current jobs */ 99 100 struct process *pcurrjob; /* current job */ 101 struct process *pcurrent; /* current job in table */ 102 struct process *pprevious; /* previous job in table */ 103 104 int pmaxindex; /* current maximum job index */ 105