1 /* $Header: /p/tcsh/cvsroot/tcsh/sh.proc.h,v 3.15 2011/04/14 18:25:25 christos Exp $ */ 2 /* 3 * sh.proc.h: Process data structures and variables 4 */ 5 /*- 6 * Copyright (c) 1980, 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. 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 #ifndef _h_sh_proc 34 #define _h_sh_proc 35 /* 36 * C shell - process structure declarations 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 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 117 118 EXTERN struct process proclist IZERO_STRUCT;/* list head of all processes */ 119 120 EXTERN struct process *pholdjob IZERO; /* one level stack of current jobs */ 121 122 EXTERN struct process *pcurrjob IZERO; /* current job */ 123 EXTERN struct process *pcurrent IZERO; /* current job in table */ 124 EXTERN struct process *pprevious IZERO; /* previous job in table */ 125 126 EXTERN int pmaxindex IZERO; /* current maximum job index */ 127 128 #endif /* _h_sh_proc */ 129