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authorRon Yorston <rmy@pobox.com>2024-04-08 13:12:25 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2024-07-13 21:34:18 +0200
commite4b5ccd13bb59eaaec6aa7f22655cc469f8900a2 (patch)
tree4153f53bf050969ad9f697b36402d0aee57d786d /coreutils
parentb20b3790b428aab75449995d0866bad15879bc00 (diff)
timeout: allow fractional seconds in timeout values
The 'timeout' applet uses parse_duration_str() to obtain its timeout values. The default configuration enables float durations. However, the applet silently ignores fractional seconds. This results in unexpected behaviour: $ timeout 5.99 sleep 5.1; echo $? Terminated 143 When float durations are enabled ensure that any fractional seconds are taken into account. function old new delta timeout_wait 44 92 +48 timeout_main 383 365 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 48/-18) Total: 30 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'coreutils')
-rw-r--r--coreutils/timeout.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/coreutils/timeout.c b/coreutils/timeout.c
index 18aa9ebeb..84299a0a5 100644
--- a/coreutils/timeout.c
+++ b/coreutils/timeout.c
@@ -47,11 +47,16 @@
#include "libbb.h"
-static NOINLINE int timeout_wait(int timeout, pid_t pid)
+static NOINLINE int timeout_wait(duration_t timeout, pid_t pid)
{
/* Just sleep(HUGE_NUM); kill(parent) may kill wrong process! */
while (1) {
- sleep1();
+#if ENABLE_FLOAT_DURATION
+ if (timeout < 1)
+ sleep_for_duration(timeout);
+ else
+#endif
+ sleep1();
if (--timeout <= 0)
break;
if (kill(pid, 0)) {
@@ -68,8 +73,8 @@ int timeout_main(int argc UNUSED_PARAM, char **argv)
int signo;
int status;
int parent = 0;
- int timeout;
- int kill_timeout;
+ duration_t timeout;
+ duration_t kill_timeout;
pid_t pid;
#if !BB_MMU
char *sv1, *sv2;