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Imported from ../bash-2.0.tar.gz.

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This commit is contained in:
Jari Aalto 1996-12-23 17:02:34 +00:00
commit ccc6cda312
502 changed files with 91988 additions and 69123 deletions
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40
builtins/wait.def
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@ -19,7 +19,6 @@ You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
$BUILTIN wait
$FUNCTION wait_builtin
$DEPENDS_ON JOB_CONTROL
@ -42,10 +41,18 @@ and the return code is zero. N is a process ID; if it is not given,
all child processes of the shell are waited for.
$END
#include <sys/types.h>
#include <config.h>
#include "../bashtypes.h"
#include <signal.h>
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "../shell.h"
#include "../jobs.h"
#include "common.h"
extern int interrupt_immediately;
@ -53,10 +60,17 @@ extern int interrupt_immediately;
wait for all of the active background processes of the shell and return
0. If a list of pids or job specs are given, return the exit status of
the last one waited for. */
#define WAIT_RETURN(s) do { run_unwind_frame ("wait_builtin"); return (s); } while (0)
int
wait_builtin (list)
WORD_LIST *list;
{
int status = EXECUTION_SUCCESS;
int status;
if (no_options (list))
return (EX_USAGE);
begin_unwind_frame ("wait_builtin");
unwind_protect_int (interrupt_immediately);
@ -67,13 +81,13 @@ wait_builtin (list)
/* But wait without any arguments means to wait for all of the shell's
currently active background processes. */
if (!list)
if (list == 0)
{
wait_for_background_pids ();
status = EXECUTION_SUCCESS;
goto return_status;
WAIT_RETURN (EXECUTION_SUCCESS);
}
status = EXECUTION_SUCCESS;
while (list)
{
pid_t pid;
@ -89,9 +103,8 @@ wait_builtin (list)
}
else
{
builtin_error ("`%s' is not a pid or legal job spec", w);
status = EXECUTION_FAILURE;
goto return_status;
builtin_error ("`%s' is not a pid or valid job spec", w);
WAIT_RETURN (EXECUTION_FAILURE);
}
}
#if defined (JOB_CONTROL)
@ -107,7 +120,7 @@ wait_builtin (list)
if (job < 0 || job >= job_slots || !jobs[job])
{
if (job != DUP_JOB)
builtin_error ("No such job %s", list->word->word);
builtin_error ("%s: no such job", list->word->word);
UNBLOCK_CHILD (oset);
status = 127; /* As per Posix.2, section 4.70.2 */
list = list->next;
@ -121,12 +134,11 @@ wait_builtin (list)
#endif /* JOB_CONTROL */
else
{
builtin_error ("`%s' is not a pid or legal job spec", w);
builtin_error ("`%s' is not a pid or valid job spec", w);
status = EXECUTION_FAILURE;
}
list = list->next;
}
return_status:
run_unwind_frame ("wait_builtin");
return (status);
WAIT_RETURN (status);
}