int len=48;
int retcode = sendto(sockfd, (char *) msg, len, 0, &cliaddr, servlen);
if (retcode < 0) {
- printf("sendto() failed: %d", retcode);
+ printf("sendto() failed: %d\n", retcode);
return -3;
}
retcode = select(sockfd + 1, &fdset, NULL, NULL, &timeout);
if (retcode <= 0) {
- printf("recvfrom() error");
+ printf("recvfrom() error\n");
return -4;
}
if (abs64(nClockOffset) < nMaxOffset) {
// Everything seems right, remember new trusted offset.
+ printf("ThreadNtpSamples: new offset sample from %s, offset=%" PRId64 ".\n", strTrustedUpstream.c_str(), nClockOffset);
nNtpOffset = nClockOffset;
}
else {
int64_t nClockOffset = NtpGetTime(ip) - GetTime();
if (abs64(nClockOffset) < nMaxOffset) { // Skip the deliberately wrong timestamps
+ printf("ThreadNtpSamples: new offset sample from %s, offset=%" PRId64 ".\n", ip.ToString().c_str(), nClockOffset);
vTimeOffsets.input(nClockOffset);
}
}
- if (vTimeOffsets.size() > 2) {
+ if (vTimeOffsets.size() > 1) {
nNtpOffset = vTimeOffsets.median();
}
else {
- // Not enough offsets yet, try again later.
+ // Not enough offsets yet, try to collect additional samples later.
nNtpOffset = INT64_MAX;
int nSleepMinutes = 1 + GetRandInt(4); // Sleep for 1-5 minutes.
for (int i = 0; i < nSleepMinutes * 60 && !fShutdown; i++)