1 /* $NetBSD: proc.h,v 1.15 2020/04/03 18:11:29 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)proc.h 8.1 (Berkeley) 5/31/93 32 */ 33 34 #ifndef _PROC_H_ 35 #define _PROC_H_ 36 37 /* 38 * Structure for each process the shell knows about: 39 * allocated and filled by pcreate. 40 * flushed by pflush; freeing always happens at top level 41 * so the interrupt level has less to worry about. 42 * processes are related to "friends" when in a pipeline; 43 * p_friends links makes a circular list of such jobs 44 */ 45 struct process { 46 struct process *p_next; /* next in global "proclist" */ 47 struct process *p_friends; /* next in job list (or self) */ 48 struct directory *p_cwd; /* cwd of the job (only in head) */ 49 int p_flags; /* various job status flags */ 50 int p_reason; /* reason for entering this state */ 51 int p_index; /* shorthand job index */ 52 pid_t p_pid; 53 pid_t p_jobid; /* pid of job leader */ 54 /* if a job is stopped/background p_jobid gives its pgrp */ 55 struct timespec p_btime; /* begin time */ 56 struct timespec p_etime; /* end time */ 57 struct rusage p_rusage; 58 Char *p_command; /* first PMAXLEN chars of command */ 59 }; 60 61 /* flag values for p_flags */ 62 #define PRUNNING (1<<0) /* running */ 63 #define PSTOPPED (1<<1) /* stopped */ 64 #define PNEXITED (1<<2) /* normally exited */ 65 #define PAEXITED (1<<3) /* abnormally exited */ 66 #define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */ 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 PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED) 80 81 #define PMAXLEN 80 82 83 /* defines for arguments to pprint */ 84 #define NUMBER 01 85 #define NAME 02 86 #define REASON 04 87 #define AMPERSAND 010 88 #define FANCY 020 89 #define SHELLDIR 040 /* print shell's dir if not the same */ 90 #define JOBDIR 0100 /* print job's dir if not the same */ 91 #define AREASON 0200 92 93 extern struct process proclist; /* list head of all processes */ 94 extern int pnoprocesses; /* pchild found nothing to wait for */ 95 96 extern struct process *pholdjob; /* one level stack of current jobs */ 97 98 extern struct process *pcurrjob; /* current job */ 99 extern struct process *pcurrent; /* current job in table */ 100 extern struct process *pprevious; /* previous job in table */ 101 102 extern int pmaxindex; /* current maximum job index */ 103 104 #endif /* !_PROC_H_ */ 105