2.11BSD#431 - /usr/src/bin/tcsh/sh.proc.h

   1: /* $Header: /home/hyperion/mu/christos/src/sys/tcsh-6.00/RCS/sh.proc.h,v 3.0 1991/07/04 21:49:28 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. All advertising materials mentioning features or use of this software
  18:  *    must display the following acknowledgement:
  19:  *	This product includes software developed by the University of
  20:  *	California, Berkeley and its contributors.
  21:  * 4. Neither the name of the University nor the names of its contributors
  22:  *    may be used to endorse or promote products derived from this software
  23:  *    without specific prior written permission.
  24:  *
  25:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35:  * SUCH DAMAGE.
  36:  */
  37: #ifndef _h_sh_proc
  38: #define _h_sh_proc
  39: /*
  40:  * C shell - process structure declarations
  41:  */
  42: 
  43: /*
  44:  * Structure for each process the shell knows about:
  45:  *	allocated and filled by pcreate.
  46:  *	flushed by pflush; freeing always happens at top level
  47:  *	    so the interrupt level has less to worry about.
  48:  *	processes are related to "friends" when in a pipeline;
  49:  *	    p_friends links makes a circular list of such jobs
  50:  */
  51: struct process {
  52:     struct process *p_next; /* next in global "proclist" */
  53:     struct process *p_friends;  /* next in job list (or self) */
  54:     struct directory *p_cwd;    /* cwd of the job (only in head) */
  55:     short unsigned p_flags; /* various job status flags */
  56:     char    p_reason;       /* reason for entering this state */
  57:     int     p_index;        /* shorthand job index */
  58:     int     p_pid;
  59:     int     p_jobid;        /* pid of job leader */
  60:     /* if a job is stopped/background p_jobid gives its pgrp */
  61: #ifdef BSDTIMES
  62:     struct timeval p_btime; /* begin time */
  63:     struct timeval p_etime; /* end time */
  64:     struct rusage p_rusage;
  65: #else               /* BSDTIMES */
  66: # ifdef _SEQUENT_
  67:     tmval_t p_btime;        /* begin time */
  68:     tmval_t p_etime;        /* end time */
  69:     struct pro_stats p_rusage;
  70: # else              /* _SEQUENT_ */
  71: #  ifndef POSIX
  72:     time_t  p_btime;        /* begin time */
  73:     time_t  p_etime;        /* end time */
  74:     time_t  p_utime;        /* user time */
  75:     time_t  p_stime;        /* system time */
  76: #  else /* POSIX */
  77:     clock_t p_btime;        /* begin time */
  78:     clock_t p_etime;        /* end time */
  79:     clock_t p_utime;        /* user time */
  80:     clock_t p_stime;        /* system time */
  81: #  endif /* POSIX */
  82: # endif /* _SEQUENT_ */
  83: #endif /* BSDTIMES */
  84:     Char   *p_command;      /* first PMAXLEN chars of command */
  85: };
  86: 
  87: /* flag values for p_flags */
  88: #define PRUNNING    (1<<0)  /* running */
  89: #define PSTOPPED    (1<<1)  /* stopped */
  90: #define PNEXITED    (1<<2)  /* normally exited */
  91: #define PAEXITED    (1<<3)  /* abnormally exited */
  92: #define PSIGNALED   (1<<4)  /* terminated by a signal != SIGINT */
  93: 
  94: #define PALLSTATES  (PRUNNING|PSTOPPED|PNEXITED|PAEXITED| \
  95:              PSIGNALED|PINTERRUPTED)
  96: #define PNOTIFY     (1<<5)  /* notify async when done */
  97: #define PTIME       (1<<6)  /* job times should be printed */
  98: #define PAWAITED    (1<<7)  /* top level is waiting for it */
  99: #define PFOREGND    (1<<8)  /* started in shells pgrp */
 100: #define PDUMPED     (1<<9)  /* process dumped core */
 101: #define PDIAG       (1<<10) /* diagnostic output also piped out */
 102: #define PPOU        (1<<11) /* piped output */
 103: #define PREPORTED   (1<<12) /* status has been reported */
 104: #define PINTERRUPTED    (1<<13) /* job stopped via interrupt signal */
 105: #define PPTIME      (1<<14) /* time individual process */
 106: #define PNEEDNOTE   (1<<15) /* notify as soon as practical */
 107: 
 108: #define PNULL       (struct process *)0
 109: #define PMAXLEN     80
 110: 
 111: /* defines for arguments to pprint */
 112: #define NUMBER      01
 113: #define NAME        02
 114: #define REASON      04
 115: #define AMPERSAND   010
 116: #define FANCY       020
 117: #define SHELLDIR    040 /* print shell's dir if not the same */
 118: #define JOBDIR      0100    /* print job's dir if not the same */
 119: #define AREASON     0200
 120: 
 121: struct process proclist;    /* list head of all processes */
 122: bool    pnoprocesses;       /* pchild found nothing to wait for */
 123: 
 124: struct process *pholdjob;   /* one level stack of current jobs */
 125: 
 126: struct process *pcurrjob;   /* current job */
 127: struct process *pcurrent;   /* current job in table */
 128: struct process *pprevious;  /* previous job in table */
 129: 
 130: int   pmaxindex;        /* current maximum job index */
 131: 
 132: #ifndef BSDTIMES
 133: bool    timesdone;      /* shtimes buffer full ? */
 134: #endif /* BSDTIMES */
 135: 
 136: #endif /* _h_sh_proc */

Defined variables

Defined struct's

Defined macros

Usage of this include