85 lines
3.0 KiB
C
85 lines
3.0 KiB
C
/* @(#)sh.proc.h 1.1 92/07/30 SMI; from UCB 5.2 6/6/85 */
|
|
|
|
/*
|
|
* Copyright (c) 1980 Regents of the University of California.
|
|
* All rights reserved. The Berkeley Software License Agreement
|
|
* specifies the terms and conditions for redistribution.
|
|
*/
|
|
|
|
/*
|
|
* 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) */
|
|
short unsigned p_flags; /* various job status flags */
|
|
tchar p_reason; /* reason for entering this state */
|
|
tchar p_index; /* shorthand job index */
|
|
int p_pid;
|
|
int p_jobid; /* pid of job leader */
|
|
/* if a job is stopped/background p_jobid gives its pgrp */
|
|
struct timeval p_btime; /* begin time */
|
|
struct timeval p_etime; /* end time */
|
|
struct rusage p_rusage;
|
|
tchar *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 PNULL (struct process *)0
|
|
#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
|
|
|
|
struct process proclist; /* list head of all processes */
|
|
bool pnoprocesses; /* pchild found nothing to wait for */
|
|
|
|
struct process *pholdjob; /* one level stack of current jobs */
|
|
|
|
struct process *pcurrjob; /* current job */
|
|
struct process *pcurrent; /* current job in table */
|
|
struct process *pprevious; /* previous job in table */
|
|
|
|
short pmaxindex; /* current maximum job index */
|
|
|
|
int psigint();
|
|
struct process *pgetcurr();
|
|
struct process *plookup();
|
|
struct process *pfind();
|