Author: jilles
Date: Tue May 28 22:07:31 2013
New Revision: 251078
URL: http://svnweb.freebsd.org/changeset/base/251078
Log:
sleep: Improve nanosleep() error handling:
* Work around kernel bugs that cause a spurious [EINTR] return if a
debugger (such as truss(1)) is attached.
* Write an error message if an error other than [EINTR] occurs.
PR: bin/178664
Modified:
head/bin/sleep/sleep.c
Modified: head/bin/sleep/sleep.c
==============================================================================
--- head/bin/sleep/sleep.c Tue May 28 22:07:23 2013 (r251077)
+++ head/bin/sleep/sleep.c Tue May 28 22:07:31 2013 (r251078)
@@ -43,6 +43,7 @@ __FBSDID("$FreeBSD$");
#include <ctype.h>
#include <err.h>
+#include <errno.h>
#include <limits.h>
#include <signal.h>
#include <stdint.h>
@@ -87,8 +88,8 @@ main(int argc, char *argv[])
warnx("about %d second(s) left out of the original %d",
(int)time_to_sleep.tv_sec, (int)original);
report_requested = 0;
- } else
- break;
+ } else if (errno != EINTR)
+ err(1, "nanosleep");
}
return (0);
}
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