Signed-off-by: Miroslav Lichvar <mlich...@redhat.com>
---
ntpshm.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/ntpshm.c b/ntpshm.c
index b6280a5..21a11cf 100644
--- a/ntpshm.c
+++ b/ntpshm.c
@@ -28,6 +28,11 @@
#define NS_PER_SEC 1000000000
+/* NTP leap values */
+#define LEAP_NORMAL 0x0
+#define LEAP_INSERT 0x1
+#define LEAP_DELETE 0x2
+
/* Key of the first SHM segment */
#define SHMKEY 0x4e545030
@@ -61,6 +66,7 @@ struct shmTime {
struct ntpshm_servo {
struct servo servo;
struct shmTime *shm;
+ int leap;
};
static void ntpshm_destroy(struct servo *servo)
@@ -91,7 +97,18 @@ static double ntpshm_sample(struct servo *servo,
s->shm->receiveTimeStampNSec = local_ts % NS_PER_SEC;
s->shm->receiveTimeStampUSec = s->shm->receiveTimeStampNSec / 1000;
s->shm->precision = -30; /* 1 nanosecond */
- s->shm->leap = 0;
+
+ switch (s->leap) {
+ case -1:
+ s->shm->leap = LEAP_DELETE;
+ break;
+ case 1:
+ s->shm->leap = LEAP_INSERT;
+ break;
+ default:
+ s->shm->leap = LEAP_NORMAL;
+ }
+
/* TODO: write memory barrier */
s->shm->count++;
@@ -109,6 +126,13 @@ static void ntpshm_reset(struct servo *servo)
{
}
+static void ntpshm_leap(struct servo *servo, int leap)
+{
+ struct ntpshm_servo *s = container_of(servo, struct ntpshm_servo,
servo);
+
+ s->leap = leap;
+}
+
struct servo *ntpshm_servo_create(void)
{
struct ntpshm_servo *s;
@@ -122,6 +146,7 @@ struct servo *ntpshm_servo_create(void)
s->servo.sample = ntpshm_sample;
s->servo.sync_interval = ntpshm_sync_interval;
s->servo.reset = ntpshm_reset;
+ s->servo.leap = ntpshm_leap;
shmid = shmget(SHMKEY + ntpshm_segment, sizeof (struct shmTime),
IPC_CREAT | 0600);
--
1.9.3
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