mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-06-22 21:37:58 +02:00
Chet Ramey
79 lines
1.3 KiB
C
79 lines
1.3 KiB
C
/*
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* sleep -- sleep for fractions of a second
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*
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* usage: sleep seconds[.fraction]
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*/
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#include "config.h"
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#include "bashtypes.h"
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#if defined (TIME_WITH_SYS_TIME)
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# include <sys/time.h>
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# include <time.h>
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#else
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# if defined (HAVE_SYS_TIME_H)
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#if defined (HAVE_UNISTD_H)
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#include <unistd.h>
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#endif
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#include <stdio.h>
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#include "chartypes.h"
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#include "shell.h"
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#include "builtins.h"
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#include "common.h"
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#define RETURN(x) \
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do { \
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if (sp) *sp = sec; \
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if (usp) *usp = usec; \
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return (x); \
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} while (0)
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int
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sleep_builtin (list)
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WORD_LIST *list;
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{
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long sec, usec;
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if (list == 0) {
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builtin_usage();
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return(EX_USAGE);
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}
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if (*list->word->word == '-' || list->next) {
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builtin_usage ();
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return (EX_USAGE);
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}
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if (uconvert(list->word->word, &sec, &usec)) {
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fsleep(sec, usec);
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return(EXECUTION_SUCCESS);
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}
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builtin_error("%s: bad sleep interval", list->word->word);
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return (EXECUTION_FAILURE);
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}
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static char *sleep_doc[] = {
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"Suspend execution for specified period.",
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""
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"sleep suspends execution for a minimum of SECONDS[.FRACTION] seconds.",
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(char *)NULL
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};
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struct builtin sleep_struct = {
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"sleep",
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sleep_builtin,
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BUILTIN_ENABLED,
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sleep_doc,
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"sleep seconds[.fraction]",
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0
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};
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