projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| ef09701e WJ |
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 | ||
| 36 | /* | |
| 37 | * Structure for each process the shell knows about: | |
| 38 | * allocated and filled by pcreate. | |
| 39 | * flushed by pflush; freeing always happens at top level | |
| 40 | * so the interrupt level has less to worry about. | |
| 41 | * processes are related to "friends" when in a pipeline; | |
| 42 | * p_friends links makes a circular list of such jobs | |
| 43 | */ | |
| 44 | struct process { | |
| 45 | struct process *p_next; /* next in global "proclist" */ | |
| 46 | struct process *p_friends; /* next in job list (or self) */ | |
| 47 | struct directory *p_cwd; /* cwd of the job (only in head) */ | |
| 48 | short unsigned p_flags; /* various job status flags */ | |
| 49 | char p_reason; /* reason for entering this state */ | |
| 50 | int p_index; /* shorthand job index */ | |
| 51 | int p_pid; | |
| 52 | int p_jobid; /* pid of job leader */ | |
| 53 | /* if a job is stopped/background p_jobid gives its pgrp */ | |
| 54 | struct timeval p_btime; /* begin time */ | |
| 55 | struct timeval p_etime; /* end time */ | |
| 56 | struct rusage p_rusage; | |
| 57 | Char *p_command; /* first PMAXLEN chars of command */ | |
| 58 | }; | |
| 59 | ||
| 60 | /* flag values for p_flags */ | |
| 61 | #define PRUNNING (1<<0) /* running */ | |
| 62 | #define PSTOPPED (1<<1) /* stopped */ | |
| 63 | #define PNEXITED (1<<2) /* normally exited */ | |
| 64 | #define PAEXITED (1<<3) /* abnormally exited */ | |
| 65 | #define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */ | |
| 66 | ||
| 67 | #define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED) | |
| 68 | #define PNOTIFY (1<<5) /* notify async when done */ | |
| 69 | #define PTIME (1<<6) /* job times should be printed */ | |
| 70 | #define PAWAITED (1<<7) /* top level is waiting for it */ | |
| 71 | #define PFOREGND (1<<8) /* started in shells pgrp */ | |
| 72 | #define PDUMPED (1<<9) /* process dumped core */ | |
| 73 | #define PDIAG (1<<10) /* diagnostic output also piped out */ | |
| 74 | #define PPOU (1<<11) /* piped output */ | |
| 75 | #define PREPORTED (1<<12) /* status has been reported */ | |
| 76 | #define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */ | |
| 77 | #define PPTIME (1<<14) /* time individual process */ | |
| 78 | #define PNEEDNOTE (1<<15) /* notify as soon as practical */ | |
| 79 | ||
| 80 | #define PMAXLEN 80 | |
| 81 | ||
| 82 | /* defines for arguments to pprint */ | |
| 83 | #define NUMBER 01 | |
| 84 | #define NAME 02 | |
| 85 | #define REASON 04 | |
| 86 | #define AMPERSAND 010 | |
| 87 | #define FANCY 020 | |
| 88 | #define SHELLDIR 040 /* print shell's dir if not the same */ | |
| 89 | #define JOBDIR 0100 /* print job's dir if not the same */ | |
| 90 | #define AREASON 0200 | |
| 91 | ||
| 92 | struct process proclist; /* list head of all processes */ | |
| 93 | bool pnoprocesses; /* pchild found nothing to wait for */ | |
| 94 | ||
| 95 | struct process *pholdjob; /* one level stack of current jobs */ | |
| 96 | ||
| 97 | struct process *pcurrjob; /* current job */ | |
| 98 | struct process *pcurrent; /* current job in table */ | |
| 99 | struct process *pprevious; /* previous job in table */ | |
| 100 | ||
| 101 | int pmaxindex; /* current maximum job index */ |