1 /*- 2 * Copyright (c) 1980, 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)proc.h 5.6 (Berkeley) 6/25/91 34 * 35 * $Header: /cvsroot/src/bin/csh/proc.h,v 1.3 1993/03/23 00:25:17 cgd Exp $ 36 */ 37 38 /* 39 * Structure for each process the shell knows about: 40 * allocated and filled by pcreate. 41 * flushed by pflush; freeing always happens at top level 42 * so the interrupt level has less to worry about. 43 * processes are related to "friends" when in a pipeline; 44 * p_friends links makes a circular list of such jobs 45 */ 46 struct process { 47 struct process *p_next; /* next in global "proclist" */ 48 struct process *p_friends; /* next in job list (or self) */ 49 struct directory *p_cwd; /* cwd of the job (only in head) */ 50 short unsigned p_flags; /* various job status flags */ 51 char p_reason; /* reason for entering this state */ 52 int p_index; /* shorthand job index */ 53 int p_pid; 54 int p_jobid; /* pid of job leader */ 55 /* if a job is stopped/background p_jobid gives its pgrp */ 56 struct timeval p_btime; /* begin time */ 57 struct timeval p_etime; /* end time */ 58 struct rusage p_rusage; 59 Char *p_command; /* first PMAXLEN chars of command */ 60 }; 61 62 /* flag values for p_flags */ 63 #define PRUNNING (1<<0) /* running */ 64 #define PSTOPPED (1<<1) /* stopped */ 65 #define PNEXITED (1<<2) /* normally exited */ 66 #define PAEXITED (1<<3) /* abnormally exited */ 67 #define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */ 68 69 #define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED) 70 #define PNOTIFY (1<<5) /* notify async when done */ 71 #define PTIME (1<<6) /* job times should be printed */ 72 #define PAWAITED (1<<7) /* top level is waiting for it */ 73 #define PFOREGND (1<<8) /* started in shells pgrp */ 74 #define PDUMPED (1<<9) /* process dumped core */ 75 #define PDIAG (1<<10) /* diagnostic output also piped out */ 76 #define PPOU (1<<11) /* piped output */ 77 #define PREPORTED (1<<12) /* status has been reported */ 78 #define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */ 79 #define PPTIME (1<<14) /* time individual process */ 80 #define PNEEDNOTE (1<<15) /* notify as soon as practical */ 81 82 #define PMAXLEN 80 83 84 /* defines for arguments to pprint */ 85 #define NUMBER 01 86 #define NAME 02 87 #define REASON 04 88 #define AMPERSAND 010 89 #define FANCY 020 90 #define SHELLDIR 040 /* print shell's dir if not the same */ 91 #define JOBDIR 0100 /* print job's dir if not the same */ 92 #define AREASON 0200 93 94 struct process proclist; /* list head of all processes */ 95 bool pnoprocesses; /* pchild found nothing to wait for */ 96 97 struct process *pholdjob; /* one level stack of current jobs */ 98 99 struct process *pcurrjob; /* current job */ 100 struct process *pcurrent; /* current job in table */ 101 struct process *pprevious; /* previous job in table */ 102 103 int pmaxindex; /* current maximum job index */ 104