1 /* $OpenBSD: proc.h,v 1.5 2020/08/30 22:23:47 mortimer 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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)proc.h 8.1 (Berkeley) 5/31/93 33 */ 34 35 /* 36 * Structure for each process the shell knows about: 37 * allocated and filled by pcreate. 38 * flushed by pflush; freeing always happens at top level 39 * so the interrupt level has less to worry about. 40 * processes are related to "friends" when in a pipeline; 41 * p_friends links makes a circular list of such jobs 42 */ 43 struct process { 44 struct process *p_next; /* next in global "proclist" */ 45 struct process *p_friends; /* next in job list (or self) */ 46 struct directory *p_cwd; /* cwd of the job (only in head) */ 47 short unsigned p_flags; /* various job status flags */ 48 char p_reason; /* reason for entering this state */ 49 int p_index; /* shorthand job index */ 50 pid_t p_pid; 51 pid_t p_jobid; /* pid of job leader */ 52 /* if a job is stopped/background p_jobid gives its pgrp */ 53 struct timespec p_btime; /* begin time */ 54 struct timespec p_etime; /* end time */ 55 struct rusage p_rusage; 56 Char *p_command; /* first PMAXLEN chars of command */ 57 }; 58 59 /* flag values for p_flags */ 60 #define PRUNNING (1<<0) /* running */ 61 #define PSTOPPED (1<<1) /* stopped */ 62 #define PNEXITED (1<<2) /* normally exited */ 63 #define PAEXITED (1<<3) /* abnormally exited */ 64 #define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */ 65 66 #define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED) 67 #define PNOTIFY (1<<5) /* notify async when done */ 68 #define PTIME (1<<6) /* job times should be printed */ 69 #define PAWAITED (1<<7) /* top level is waiting for it */ 70 #define PFOREGND (1<<8) /* started in shells pgrp */ 71 #define PDUMPED (1<<9) /* process dumped core */ 72 #define PERR (1<<10) /* diagnostic output also piped out */ 73 #define PPOU (1<<11) /* piped output */ 74 #define PREPORTED (1<<12) /* status has been reported */ 75 #define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */ 76 #define PPTIME (1<<14) /* time individual process */ 77 #define PNEEDNOTE (1<<15) /* notify as soon as practical */ 78 79 #define PMAXLEN 80 80 81 /* defines for arguments to pprint */ 82 #define NUMBER 01 83 #define NAME 02 84 #define REASON 04 85 #define AMPERSAND 010 86 #define FANCY 020 87 #define SHELLDIR 040 /* print shell's dir if not the same */ 88 #define JOBDIR 0100 /* print job's dir if not the same */ 89 #define AREASON 0200 90 91 extern struct process proclist; /* list head of all processes */ 92 extern bool pnoprocesses; /* pchild found nothing to wait for */ 93 94 extern struct process *pholdjob; /* one level stack of current jobs */ 95 96 extern struct process *pcurrjob; /* current job */ 97 extern struct process *pcurrent; /* current job in table */ 98 extern struct process *pprevious; /* previous job in table */ 99 100 extern int pmaxindex; /* current maximum job index */ 101