1 /* 2 * sh.proc.h: Process data structures and variables 3 */ 4 /*- 5 * Copyright (c) 1980, 1991 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 #ifndef _h_sh_proc 33 #define _h_sh_proc 34 /* 35 * C shell - process structure declarations 36 */ 37 38 /* 39 * Structure for each process the shell knows about: 40 * allocated and filled by pcreate. 41 * flushed by pflush; freeing always happens at top level 42 * so the interrupt level has less to worry about. 43 * processes are related to "friends" when in a pipeline; 44 * p_friends links makes a circular list of such jobs 45 */ 46 struct process { 47 struct process *p_next; /* next in global "proclist" */ 48 struct process *p_friends; /* next in job list (or self) */ 49 struct directory *p_cwd; /* cwd of the job (only in head) */ 50 unsigned long p_flags; /* various job status flags */ 51 unsigned char p_reason; /* reason for entering this state */ 52 int p_index; /* shorthand job index */ 53 pid_t p_parentid; /* parent pid */ 54 pid_t p_procid; 55 pid_t p_jobid; /* pid of job leader */ 56 /* if a job is stopped/background p_jobid gives its pgrp */ 57 #ifdef BSDTIMES 58 struct timeval p_btime; /* begin time */ 59 struct timeval p_etime; /* end time */ 60 struct sysrusage p_rusage; 61 #else /* BSDTIMES */ 62 # ifdef _SEQUENT_ 63 timeval_t p_btime; /* begin time */ 64 timeval_t p_etime; /* end time */ 65 struct process_stats p_rusage; 66 # else /* _SEQUENT_ */ 67 # ifndef POSIX 68 time_t p_btime; /* begin time */ 69 time_t p_etime; /* end time */ 70 time_t p_utime; /* user time */ 71 time_t p_stime; /* system time */ 72 # else /* POSIX */ 73 clock_t p_btime; /* begin time */ 74 clock_t p_etime; /* end time */ 75 clock_t p_utime; /* user time */ 76 clock_t p_stime; /* system time */ 77 # endif /* POSIX */ 78 # endif /* _SEQUENT_ */ 79 #endif /* BSDTIMES */ 80 Char *p_command; /* command */ 81 }; 82 83 /* flag values for p_flags */ 84 #define PRUNNING (1<<0) /* running */ 85 #define PSTOPPED (1<<1) /* stopped */ 86 #define PNEXITED (1<<2) /* normally exited */ 87 #define PAEXITED (1<<3) /* abnormally exited */ 88 #define PSIGNALED (1<<4) /* terminated by a signal != SIGINT */ 89 90 #define PALLSTATES (PRUNNING|PSTOPPED|PNEXITED|PAEXITED| \ 91 PSIGNALED|PINTERRUPTED) 92 #define PNOTIFY (1<<5) /* notify async when done */ 93 #define PTIME (1<<6) /* job times should be printed */ 94 #define PAWAITED (1<<7) /* top level is waiting for it */ 95 #define PFOREGND (1<<8) /* started in shells pgrp */ 96 #define PDUMPED (1<<9) /* process dumped core */ 97 #define PDIAG (1<<10) /* diagnostic output also piped out */ 98 #define PPOU (1<<11) /* piped output */ 99 #define PREPORTED (1<<12) /* status has been reported */ 100 #define PINTERRUPTED (1<<13) /* job stopped via interrupt signal */ 101 #define PPTIME (1<<14) /* time individual process */ 102 #define PNEEDNOTE (1<<15) /* notify as soon as practical */ 103 #define PBACKQ (1<<16) /* Process is `` evaluation */ 104 #define PHUP (1<<17) /* Process is marked for SIGHUP on exit */ 105 #define PBRACE (1<<18) /* Process is {} evaluation */ 106 107 /* defines for arguments to pprint */ 108 #define NUMBER 0x001 109 #define NAME 0x002 110 #define REASON 0x004 111 #define AMPERSAND 0x008 112 #define FANCY 0x010 113 #define SHELLDIR 0x020 /* print shell's dir if not the same */ 114 #define JOBDIR 0x040 /* print job's dir if not the same */ 115 #define AREASON 0x080 116 #define JOBLIST 0x100 117 118 EXTERN struct process proclist IZERO_STRUCT;/* list head of all processes */ 119 120 EXTERN struct process *pholdjob IZERO; /* one level stack of current jobs */ 121 122 EXTERN struct process *pcurrjob IZERO; /* current job */ 123 EXTERN struct process *pcurrent IZERO; /* current job in table */ 124 EXTERN struct process *pprevious IZERO; /* previous job in table */ 125 126 EXTERN int pmaxindex IZERO; /* current maximum job index */ 127 128 #endif /* _h_sh_proc */ 129