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author | Jari Aalto <jari.aalto@cante.net> | 1996-12-23 17:02:34 +0000 |
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committer | Jari Aalto <jari.aalto@cante.net> | 2009-09-12 16:46:49 +0000 |
commit | ccc6cda312fea9f0468ee65b8f368e9653e1380b (patch) | |
tree | b059878adcfd876c4acb8030deda1eeb918c7e75 /builtins/jobs.def | |
parent | 726f63884db0132f01745f1fb4465e6621088ccf (diff) | |
download | android_external_bash-ccc6cda312fea9f0468ee65b8f368e9653e1380b.tar.gz android_external_bash-ccc6cda312fea9f0468ee65b8f368e9653e1380b.tar.bz2 android_external_bash-ccc6cda312fea9f0468ee65b8f368e9653e1380b.zip |
Imported from ../bash-2.0.tar.gz.
Diffstat (limited to 'builtins/jobs.def')
-rw-r--r-- | builtins/jobs.def | 133 |
1 files changed, 112 insertions, 21 deletions
diff --git a/builtins/jobs.def b/builtins/jobs.def index 8a293da..2896a76 100644 --- a/builtins/jobs.def +++ b/builtins/jobs.def @@ -1,5 +1,5 @@ This file is jobs.def, from which is created jobs.c. -It implements the builtin "jobs" in Bash. +It implements the builtins "jobs" and "disown" in Bash. Copyright (C) 1987, 1989, 1991, 1992 Free Software Foundation, Inc. @@ -24,24 +24,38 @@ $PRODUCES jobs.c $BUILTIN jobs $FUNCTION jobs_builtin $DEPENDS_ON JOB_CONTROL -$SHORT_DOC jobs [-lnp] [jobspec ...] | jobs -x command [args] +$SHORT_DOC jobs [-lnprs] [jobspec ...] or jobs -x command [args] Lists the active jobs. The -l option lists process id's in addition to the normal information; the -p option lists process id's only. If -n is given, only processes that have changed status since the last -notification are printed. JOBSPEC restricts output to that job. -If -x is given, COMMAND is run after all job specifications that appear -in ARGS have been replaced with the process ID of that job's process group -leader. +notification are printed. JOBSPEC restricts output to that job. The +-r and -s options restrict output to running and stopped jobs only, +respectively. Without options, the status of all active jobs is +printed. If -x is given, COMMAND is run after all job specifications +that appear in ARGS have been replaced with the process ID of that job's +process group leader. $END -#include "../shell.h" +#include <config.h> #if defined (JOB_CONTROL) -#include <sys/types.h> +#include "../bashtypes.h" #include <signal.h> -#include "../jobs.h" +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include "../bashansi.h" +#include "../shell.h" +#include "../jobs.h" +#include "../execute_cmd.h" #include "bashgetopt.h" +#include "common.h" + +#define JSTATE_ANY 0x0 +#define JSTATE_RUNNING 0x1 +#define JSTATE_STOPPED 0x2 extern int job_control, interactive_shell; static int execute_list_with_replacements (); @@ -52,20 +66,24 @@ static int execute_list_with_replacements (); pid only. If `-n' is given, only processes that have changed status since the last notification are printed. If -x is given, replace all job specs with the pid of the appropriate process - group leader and execute the command. */ + group leader and execute the command. The -r and -s options mean + to print info about running and stopped jobs only, respectively. */ int jobs_builtin (list) WORD_LIST *list; { - int form = JLIST_STANDARD, execute = 0; - int opt; - int any_failed = 0; + int form, execute, state, opt, any_failed, job; + sigset_t set, oset; - if (!job_control && !interactive_shell) + if (job_control == 0 && interactive_shell == 0) return (EXECUTION_SUCCESS); + execute = any_failed = 0; + form = JLIST_STANDARD; + state = JSTATE_ANY; + reset_internal_getopt (); - while ((opt = internal_getopt (list, "lpnx")) != -1) + while ((opt = internal_getopt (list, "lpnxrs")) != -1) { switch (opt) { @@ -86,9 +104,15 @@ jobs_builtin (list) } execute++; break; + case 'r': + state = JSTATE_RUNNING; + break; + case 's': + state = JSTATE_STOPPED; + break; default: - builtin_error ("usage: jobs [-lpn [jobspec]] [-x command [args]]"); + builtin_usage (); return (EX_USAGE); } } @@ -100,21 +124,29 @@ jobs_builtin (list) if (!list) { - list_jobs (form); + switch (state) + { + case JSTATE_ANY: + list_all_jobs (form); + break; + case JSTATE_RUNNING: + list_running_jobs (form); + break; + case JSTATE_STOPPED: + list_stopped_jobs (form); + break; + } return (EXECUTION_SUCCESS); } while (list) { - int job; - sigset_t set, oset; - BLOCK_CHILD (set, oset); job = get_job_spec (list); if ((job == NO_JOB) || !jobs || !jobs[job]) { - builtin_error ("No such job %s", list->word->word); + builtin_error ("no such job %s", list->word->word); any_failed++; } else if (job != DUP_JOB) @@ -169,3 +201,62 @@ execute_list_with_replacements (list) return (result); } #endif /* JOB_CONTROL */ + +$BUILTIN disown +$FUNCTION disown_builtin +$DEPENDS_ON JOB_CONTROL +$SHORT_DOC disown [-h] [jobspec ...] +By default, removes each JOBSPEC argument from the table of active jobs. +If the -h option is given, the job is not removed from the table, but is +marked so that SIGHUP is not sent to the job if the shell receives a +SIGHUP. +$END + +#if defined (JOB_CONTROL) +int +disown_builtin (list) + WORD_LIST *list; +{ + int opt, job, retval, nohup_only; + sigset_t set, oset; + + nohup_only = 0; + reset_internal_getopt (); + while ((opt = internal_getopt (list, "h")) != -1) + { + switch (opt) + { + case 'h': + nohup_only = 1; + break; + default: + builtin_usage (); + return (EX_USAGE); + } + } + list = loptend; + retval = EXECUTION_SUCCESS; + + do + { + BLOCK_CHILD (set, oset); + job = get_job_spec (list); + + if (job == NO_JOB || jobs == 0 || jobs[job] == 0) + { + builtin_error ("no such job %s", list->word->word); + retval = EXECUTION_FAILURE; + } + else if (nohup_only) + nohup_job (job); + else + delete_job (job); + UNBLOCK_CHILD (oset); + + if (list) + list = list->next; + } + while (list); + return (retval); +} +#endif /* JOB_CONTROL */ |