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ntpd: get rid of G.initial_poll_complete

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This speeds up syncing - now happens only just
two replies from a peer. Especially useful for "ntpd -q".
Shouldn't have ill effects: if we chose a bad peer,
we will discover it later and switch to another one.

The code is even smaller this way.

Suggested by Miroslav Lichvar <mlichvar@redhat.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2015-01-29 16:31:36 +01:00
parent 936c401077
commit ff3f3accc6
1 changed files with 2 additions and 5 deletions
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7
networking/ntpd.c
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@ -376,8 +376,6 @@ struct globals {
*/
#define G_precision_sec 0.002
uint8_t stratum;
/* Bool. After set to 1, never goes back to 0: */
smallint initial_poll_complete;
#define STATE_NSET 0 /* initial state, "nothing is set" */
//#define STATE_FSET 1 /* frequency set from file */
@ -1084,7 +1082,7 @@ select_and_cluster(void)
num_points = 0;
item = G.ntp_peers;
if (G.initial_poll_complete) while (item != NULL) {
while (item != NULL) {
double rd, offset;
p = (peer_t *) item->data;
@ -1649,7 +1647,7 @@ update_local_clock(peer_t *p)
if (G.ntp_status & LI_MINUSSEC)
tmx.status |= STA_DEL;
tmx.constant = G.poll_exp - 4;
tmx.constant = (int)G.poll_exp - 4 > 0 ? (int)G.poll_exp - 4 : 0;
/* EXPERIMENTAL.
* The below if statement should be unnecessary, but...
* It looks like Linux kernel's PLL is far too gentle in changing
@ -2285,7 +2283,6 @@ int ntpd_main(int argc UNUSED_PARAM, char **argv)
VERB4 bb_error_msg("disabling burst mode");
G.polladj_count = 0;
G.poll_exp = MINPOLL;
G.initial_poll_complete = 1;
}
send_query_to_peer(p);
} else {