11556Srgrimes/*- 21556Srgrimes * Copyright (c) 1991, 1993 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 51556Srgrimes * This code is derived from software contributed to Berkeley by 61556Srgrimes * Kenneth Almquist. 71556Srgrimes * 81556Srgrimes * Redistribution and use in source and binary forms, with or without 91556Srgrimes * modification, are permitted provided that the following conditions 101556Srgrimes * are met: 111556Srgrimes * 1. Redistributions of source code must retain the above copyright 121556Srgrimes * notice, this list of conditions and the following disclaimer. 131556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141556Srgrimes * notice, this list of conditions and the following disclaimer in the 151556Srgrimes * documentation and/or other materials provided with the distribution. 161556Srgrimes * 4. Neither the name of the University nor the names of its contributors 171556Srgrimes * may be used to endorse or promote products derived from this software 181556Srgrimes * without specific prior written permission. 191556Srgrimes * 201556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 211556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 221556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 231556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 241556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 251556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 261556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 271556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 281556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 291556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 301556Srgrimes * SUCH DAMAGE. 311556Srgrimes * 3217987Speter * @(#)jobs.h 8.2 (Berkeley) 5/4/95 3350471Speter * $FreeBSD$ 341556Srgrimes */ 351556Srgrimes 361556Srgrimes/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */ 371556Srgrimes#define FORK_FG 0 381556Srgrimes#define FORK_BG 1 391556Srgrimes#define FORK_NOJOB 2 401556Srgrimes 4138536Scracauer#include <signal.h> /* for sig_atomic_t */ 421556Srgrimes 431556Srgrimes/* 441556Srgrimes * A job structure contains information about a job. A job is either a 451556Srgrimes * single process or a set of processes contained in a pipeline. In the 461556Srgrimes * latter case, pidlist will be non-NULL, and will point to a -1 terminated 471556Srgrimes * array of pids. 481556Srgrimes */ 491556Srgrimes 501556Srgrimesstruct procstat { 5128346Ssteve pid_t pid; /* process id */ 5228346Ssteve int status; /* status flags (defined above) */ 531556Srgrimes char *cmd; /* text of command being run */ 541556Srgrimes}; 551556Srgrimes 561556Srgrimes 571556Srgrimes/* states */ 581556Srgrimes#define JOBSTOPPED 1 /* all procs are stopped */ 591556Srgrimes#define JOBDONE 2 /* all procs are completed */ 601556Srgrimes 611556Srgrimes 621556Srgrimesstruct job { 631556Srgrimes struct procstat ps0; /* status of process */ 641556Srgrimes struct procstat *ps; /* status or processes when more than one */ 651556Srgrimes short nprocs; /* number of processes */ 66100308Stjr pid_t pgrp; /* process group of this job */ 671556Srgrimes char state; /* true if job is finished */ 681556Srgrimes char used; /* true if this entry is in used */ 691556Srgrimes char changed; /* true if status has changed */ 70100305Stjr char foreground; /* true if running in the foreground */ 71209600Sjilles char remembered; /* true if $! referenced */ 721556Srgrimes#if JOBS 731556Srgrimes char jobctl; /* job running under job control */ 7497659Stjr struct job *next; /* job used after this one */ 751556Srgrimes#endif 761556Srgrimes}; 771556Srgrimes 78163085Sstefanfenum { 79163085Sstefanf SHOWJOBS_DEFAULT, /* job number, status, command */ 80163085Sstefanf SHOWJOBS_VERBOSE, /* job number, PID, status, command */ 81163085Sstefanf SHOWJOBS_PIDS, /* PID only */ 82163085Sstefanf SHOWJOBS_PGIDS /* PID of the group leader only */ 83163085Sstefanf}; 84163085Sstefanf 851556Srgrimesextern int job_warning; /* user was warned about stopped jobs */ 861556Srgrimes 8790111Simpvoid setjobctl(int); 88163085Sstefanfvoid showjobs(int, int); 8990111Simpstruct job *makejob(union node *, int); 90100308Stjrpid_t forkshell(struct job *, union node *, int); 91230998Sjillespid_t vforkexecshell(struct job *, char **, char **, const char *, int, int []); 9290111Simpint waitforjob(struct job *, int *); 9390111Simpint stoppedjobs(void); 94209600Sjillesint backgndpidset(void); 95209600Sjillespid_t backgndpidval(void); 9690111Simpchar *commandtext(union node *); 971556Srgrimes 981556Srgrimes#if ! JOBS 991556Srgrimes#define setjobctl(on) /* do nothing */ 1001556Srgrimes#endif 101