sh.proc.h revision 231990
1218799Snwhitehorn/* $Header: /p/tcsh/cvsroot/tcsh/sh.proc.h,v 3.15 2011/04/14 18:25:25 christos Exp $ */ 2218799Snwhitehorn/* 3218799Snwhitehorn * sh.proc.h: Process data structures and variables 4218799Snwhitehorn */ 5218799Snwhitehorn/*- 6218799Snwhitehorn * Copyright (c) 1980, 1991 The Regents of the University of California. 7218799Snwhitehorn * All rights reserved. 8218799Snwhitehorn * 9218799Snwhitehorn * Redistribution and use in source and binary forms, with or without 10218799Snwhitehorn * modification, are permitted provided that the following conditions 11218799Snwhitehorn * are met: 12218799Snwhitehorn * 1. Redistributions of source code must retain the above copyright 13218799Snwhitehorn * notice, this list of conditions and the following disclaimer. 14218799Snwhitehorn * 2. Redistributions in binary form must reproduce the above copyright 15218799Snwhitehorn * notice, this list of conditions and the following disclaimer in the 16218799Snwhitehorn * documentation and/or other materials provided with the distribution. 17218799Snwhitehorn * 3. Neither the name of the University nor the names of its contributors 18218799Snwhitehorn * may be used to endorse or promote products derived from this software 19218799Snwhitehorn * without specific prior written permission. 20218799Snwhitehorn * 21218799Snwhitehorn * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22218799Snwhitehorn * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23218799Snwhitehorn * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24218799Snwhitehorn * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25218799Snwhitehorn * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26218799Snwhitehorn * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27218799Snwhitehorn * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28218799Snwhitehorn * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29218799Snwhitehorn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30218799Snwhitehorn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31218799Snwhitehorn * SUCH DAMAGE. 32218799Snwhitehorn */ 33218799Snwhitehorn#ifndef _h_sh_proc 34218799Snwhitehorn#define _h_sh_proc 35330980Seadler/* 36218799Snwhitehorn * C shell - process structure declarations 37225065Snwhitehorn */ 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 */ 47struct 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 unsigned long p_flags; /* various job status flags */ 52 unsigned char p_reason; /* reason for entering this state */ 53 int p_index; /* shorthand job index */ 54 pid_t p_parentid; /* parent pid */ 55 pid_t p_procid; 56 pid_t p_jobid; /* pid of job leader */ 57 /* if a job is stopped/background p_jobid gives its pgrp */ 58#ifdef BSDTIMES 59 struct timeval p_btime; /* begin time */ 60 struct timeval p_etime; /* end time */ 61 struct sysrusage p_rusage; 62#else /* BSDTIMES */ 63# ifdef _SEQUENT_ 64 timeval_t p_btime; /* begin time */ 65 timeval_t p_etime; /* end time */ 66 struct process_stats p_rusage; 67# else /* _SEQUENT_ */ 68# ifndef POSIX 69 time_t p_btime; /* begin time */ 70 time_t p_etime; /* end time */ 71 time_t p_utime; /* user time */ 72 time_t p_stime; /* system time */ 73# else /* POSIX */ 74 clock_t p_btime; /* begin time */ 75 clock_t p_etime; /* end time */ 76 clock_t p_utime; /* user time */ 77 clock_t p_stime; /* system time */ 78# endif /* POSIX */ 79# endif /* _SEQUENT_ */ 80#endif /* BSDTIMES */ 81 Char *p_command; /* command */ 82}; 83 84/* flag values for p_flags */ 85#define PRUNNING (1<<0) /* running */ 86#define PSTOPPED (1<<1) /* stopped */ 87#define PNEXITED (1<<2) /* normally exited */ 88#define PAEXITED (1<<3) /* abnormally exited */ 89#define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */ 90 91#define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED| \ 92 PSIGNALED|PINTERRUPTED) 93#define PNOTIFY (1<<5) /* notify async when done */ 94#define PTIME (1<<6) /* job times should be printed */ 95#define PAWAITED (1<<7) /* top level is waiting for it */ 96#define PFOREGND (1<<8) /* started in shells pgrp */ 97#define PDUMPED (1<<9) /* process dumped core */ 98#define PDIAG (1<<10) /* diagnostic output also piped out */ 99#define PPOU (1<<11) /* piped output */ 100#define PREPORTED (1<<12) /* status has been reported */ 101#define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */ 102#define PPTIME (1<<14) /* time individual process */ 103#define PNEEDNOTE (1<<15) /* notify as soon as practical */ 104#define PBACKQ (1<<16) /* Process is `` evaluation */ 105#define PHUP (1<<17) /* Process is marked for SIGHUP on exit */ 106#define PBRACE (1<<18) /* Process is {} evaluation */ 107 108/* defines for arguments to pprint */ 109#define NUMBER 01 110#define NAME 02 111#define REASON 04 112#define AMPERSAND 010 113#define FANCY 020 114#define SHELLDIR 040 /* print shell's dir if not the same */ 115#define JOBDIR 0100 /* print job's dir if not the same */ 116#define AREASON 0200 117 118EXTERN struct process proclist IZERO_STRUCT;/* list head of all processes */ 119 120EXTERN struct process *pholdjob IZERO; /* one level stack of current jobs */ 121 122EXTERN struct process *pcurrjob IZERO; /* current job */ 123EXTERN struct process *pcurrent IZERO; /* current job in table */ 124EXTERN struct process *pprevious IZERO; /* previous job in table */ 125 126EXTERN int pmaxindex IZERO; /* current maximum job index */ 127 128#endif /* _h_sh_proc */ 129