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/* $Header: /p/tcsh/cvsroot/tcsh/sh.proc.h,v 3.12 2006/01/12 19:55:38 christos Exp $ */
/*
* sh.proc.h: Process data structures and variables
*/
/*-
* Copyright (c) 1980, 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _h_sh_proc
#define _h_sh_proc
/*
* C shell - process structure declarations
*/
/*
* Structure for each process the shell knows about:
* allocated and filled by pcreate.
* flushed by pflush; freeing always happens at top level
* so the interrupt level has less to worry about.
* processes are related to "friends" when in a pipeline;
* p_friends links makes a circular list of such jobs
*/
struct process {
struct process *p_next; /* next in global "proclist" */
struct process *p_friends; /* next in job list (or self) */
struct directory *p_cwd; /* cwd of the job (only in head) */
unsigned long p_flags; /* various job status flags */
unsigned char p_reason; /* reason for entering this state */
int p_index; /* shorthand job index */
pid_t p_procid;
pid_t p_jobid; /* pid of job leader */
/* if a job is stopped/background p_jobid gives its pgrp */
#ifdef BSDTIMES
struct timeval p_btime; /* begin time */
struct timeval p_etime; /* end time */
struct sysrusage p_rusage;
#else /* BSDTIMES */
# ifdef _SEQUENT_
timeval_t p_btime; /* begin time */
timeval_t p_etime; /* end time */
struct process_stats p_rusage;
# else /* _SEQUENT_ */
# ifndef POSIX
time_t p_btime; /* begin time */
time_t p_etime; /* end time */
time_t p_utime; /* user time */
time_t p_stime; /* system time */
# else /* POSIX */
clock_t p_btime; /* begin time */
clock_t p_etime; /* end time */
clock_t p_utime; /* user time */
clock_t p_stime; /* system time */
# endif /* POSIX */
# endif /* _SEQUENT_ */
#endif /* BSDTIMES */
Char *p_command; /* first PMAXLEN chars of command */
};
/* flag values for p_flags */
#define PRUNNING (1<<0) /* running */
#define PSTOPPED (1<<1) /* stopped */
#define PNEXITED (1<<2) /* normally exited */
#define PAEXITED (1<<3) /* abnormally exited */
#define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */
#define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED| \
PSIGNALED|PINTERRUPTED)
#define PNOTIFY (1<<5) /* notify async when done */
#define PTIME (1<<6) /* job times should be printed */
#define PAWAITED (1<<7) /* top level is waiting for it */
#define PFOREGND (1<<8) /* started in shells pgrp */
#define PDUMPED (1<<9) /* process dumped core */
#define PDIAG (1<<10) /* diagnostic output also piped out */
#define PPOU (1<<11) /* piped output */
#define PREPORTED (1<<12) /* status has been reported */
#define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */
#define PPTIME (1<<14) /* time individual process */
#define PNEEDNOTE (1<<15) /* notify as soon as practical */
#define PBACKQ (1<<16) /* Process is `` evaluation */
#define PHUP (1<<17) /* Process is marked for SIGHUP on exit */
#define PMAXLEN 80
/* defines for arguments to pprint */
#define NUMBER 01
#define NAME 02
#define REASON 04
#define AMPERSAND 010
#define FANCY 020
#define SHELLDIR 040 /* print shell's dir if not the same */
#define JOBDIR 0100 /* print job's dir if not the same */
#define AREASON 0200
EXTERN struct process proclist IZERO_STRUCT;/* list head of all processes */
EXTERN struct process *pholdjob IZERO; /* one level stack of current jobs */
EXTERN struct process *pcurrjob IZERO; /* current job */
EXTERN struct process *pcurrent IZERO; /* current job in table */
EXTERN struct process *pprevious IZERO; /* previous job in table */
EXTERN int pmaxindex IZERO; /* current maximum job index */
#endif /* _h_sh_proc */
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