libbb: introduce and use monotonic_ms

function                                             old     new   delta
monotonic_ms                                           -      60     +60
process_stdin                                        433     443     +10
display_speed                                         85      90      +5
nmeter_main                                          672     674      +2
builtin_type                                         114     116      +2
bb__parsespent                                       117     119      +2
ifplugd_main                                        1110    1109      -1
acpid_main                                           441     440      -1
chat_main                                           1361    1359      -2
doCommands                                          2458    2449      -9
arpping                                              466     450     -16
run_command                                          268     234     -34
readcmd                                             1072    1034     -38
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 5/7 up/down: 81/-101)           Total: -20 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/shell/ash.c b/shell/ash.c
index b47f0e881..e668f41e1 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -12619,7 +12619,7 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
         backslash = 0;
 #if ENABLE_ASH_READ_TIMEOUT
         if (timeout) /* NB: ensuring end_ms is nonzero */
-                end_ms = ((unsigned)(monotonic_us() / 1000) + timeout) | 1;
+                end_ms = ((unsigned)monotonic_ms() + timeout) | 1;
 #endif
         STARTSTACKSTR(p);
         do {
@@ -12630,7 +12630,7 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
                         struct pollfd pfd[1];
                         pfd[0].fd = fd;
                         pfd[0].events = POLLIN;
-                        timeout = end_ms - (unsigned)(monotonic_us() / 1000);
+                        timeout = end_ms - (unsigned)monotonic_ms();
                         if ((int)timeout <= 0 /* already late? */
                          || safe_poll(pfd, 1, timeout) != 1 /* no? wait... */
                         ) { /* timed out! */