1 /* $NetBSD: proc.h,v 1.14 2013/07/16 17:47:43 christos Exp $ */
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31 * @(#)proc.h 8.1 (Berkeley) 5/31/93
38 * Structure for each process the shell knows about:
39 * allocated and filled by pcreate.
40 * flushed by pflush; freeing always happens at top level
41 * so the interrupt level has less to worry about.
42 * processes are related to "friends" when in a pipeline;
43 * p_friends links makes a circular list of such jobs
46 struct process
*p_next
; /* next in global "proclist" */
47 struct process
*p_friends
; /* next in job list (or self) */
48 struct directory
*p_cwd
; /* cwd of the job (only in head) */
49 int p_flags
; /* various job status flags */
50 int p_reason
; /* reason for entering this state */
51 int p_index
; /* shorthand job index */
53 pid_t p_jobid
; /* pid of job leader */
54 /* if a job is stopped/background p_jobid gives its pgrp */
55 struct timespec p_btime
; /* begin time */
56 struct timespec p_etime
; /* end time */
57 struct rusage p_rusage
;
58 Char
*p_command
; /* first PMAXLEN chars of command */
61 /* flag values for p_flags */
62 #define PRUNNING (1<<0) /* running */
63 #define PSTOPPED (1<<1) /* stopped */
64 #define PNEXITED (1<<2) /* normally exited */
65 #define PAEXITED (1<<3) /* abnormally exited */
66 #define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */
67 #define PNOTIFY (1<<5) /* notify async when done */
68 #define PTIME (1<<6) /* job times should be printed */
69 #define PAWAITED (1<<7) /* top level is waiting for it */
70 #define PFOREGND (1<<8) /* started in shells pgrp */
71 #define PDUMPED (1<<9) /* process dumped core */
72 #define PERR (1<<10) /* diagnostic output also piped out */
73 #define PPOU (1<<11) /* piped output */
74 #define PREPORTED (1<<12) /* status has been reported */
75 #define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */
76 #define PPTIME (1<<14) /* time individual process */
77 #define PNEEDNOTE (1<<15) /* notify as soon as practical */
79 #define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED)
83 /* defines for arguments to pprint */
89 #define SHELLDIR 040 /* print shell's dir if not the same */
90 #define JOBDIR 0100 /* print job's dir if not the same */
93 struct process proclist
; /* list head of all processes */
94 int pnoprocesses
; /* pchild found nothing to wait for */
96 struct process
*pholdjob
; /* one level stack of current jobs */
98 struct process
*pcurrjob
; /* current job */
99 struct process
*pcurrent
; /* current job in table */
100 struct process
*pprevious
; /* previous job in table */
102 int pmaxindex
; /* current maximum job index */
104 #endif /* !_PROC_H_ */