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Diffstat (limited to 'src/kash/jobs.h')
| -rw-r--r-- | src/kash/jobs.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/kash/jobs.h b/src/kash/jobs.h new file mode 100644 index 0000000..d1236b3 --- /dev/null +++ b/src/kash/jobs.h @@ -0,0 +1,114 @@ +/* $NetBSD: jobs.h,v 1.19 2003/11/27 21:16:14 dsl Exp $ */ + +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * 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. + * + * @(#)jobs.h 8.2 (Berkeley) 5/4/95 + */ + +#include "output.h" + +/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */ +#define FORK_FG 0 +#define FORK_BG 1 +#define FORK_NOJOB 2 + +#define FORK_JUST_IO 4 /* forking I/O subprocess/thread (here doc). */ + +/* mode flags for showjob(s) */ +#define SHOW_PGID 0x01 /* only show pgid - for jobs -p */ +#define SHOW_MULTILINE 0x02 /* one line per process */ +#define SHOW_PID 0x04 /* include process pid */ +#define SHOW_CHANGED 0x08 /* only jobs whose state has changed */ +#define SHOW_SIGNALLED 0x10 /* only if stopped/exited on signal */ +#define SHOW_ISSIG 0x20 /* job was signalled */ +#define SHOW_NO_FREE 0x40 /* do not free job */ + + +/* + * A job structure contains information about a job. A job is either a + * single process or a set of processes contained in a pipeline. In the + * latter case, pidlist will be non-NULL, and will point to a -1 terminated + * array of pids. + */ +#define MAXCMDTEXT 200 + +struct procstat { + shpid pid; /* process id */ + int status; /* last process status from wait() */ + char cmd[MAXCMDTEXT];/* text of command being run */ +}; + +struct job { + struct procstat ps0; /* status of process */ + struct procstat *ps; /* status or processes when more than one */ + int nprocs; /* number of processes */ + shpid pgrp; /* process group of this job */ /**< @todo is job:pgrp used anywhere? */ + char state; +#define JOBRUNNING 0 /* at least one proc running */ +#define JOBSTOPPED 1 /* all procs are stopped */ +#define JOBDONE 2 /* all procs are completed */ + char used; /* true if this entry is in used */ + char changed; /* true if status has changed */ +#if JOBS + char jobctl; /* job running under job control */ + int prev_job; /* previous job index */ +#endif +}; + +/*extern pid_t backgndpid;*/ /* pid of last background process */ +/*extern int job_warning;*/ /* user was warned about stopped jobs */ + +void setjobctl(struct shinstance *, int); +int fgcmd(struct shinstance *, int, char **); +int bgcmd(struct shinstance *, int, char **); +int jobscmd(struct shinstance *, int, char **); +void showjobs(struct shinstance *, struct output *, int); +int waitcmd(struct shinstance *, int, char **); +int jobidcmd(struct shinstance *, int, char **); +union node; +struct job *makejob(struct shinstance *, union node *, int); +#ifdef KASH_USE_FORKSHELL2 +shpid forkshell2(struct shinstance *, struct job *, union node *, int, + int (*child)(struct shinstance *, void *, union node *), + union node *, void *, size_t, + void (*setupchild)(struct shinstance *, struct shinstance *, void *)); +#else +shpid forkshell(struct shinstance *, struct job *, union node *, int); +#endif +int waitforjob(struct shinstance *, struct job *); +int stoppedjobs(struct shinstance *); +void commandtext(struct shinstance *, struct procstat *, union node *); +shpid getjobpgrp(struct shinstance *, const char *); + +#if ! JOBS +#define setjobctl(psh, on) /* do nothing */ +#endif |