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Cleanups.

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This commit is contained in:
JoelKatz
2012-08-08 23:08:24 -07:00
parent be17a3866f
commit 4e99d8d7bd
2 changed files with 8 additions and 12 deletions
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16
src/SNTPClient.cpp
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@@ -10,14 +10,15 @@
// #define SNTP_DEBUG
static uint8_t SNTPQueryData[48] = {
0x1B,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
static uint8_t SNTPQueryData[48] =
{ 0x1B,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
// NTP query frequency - 5 minutes
#define NTP_QUERY_FREQUENCY (5 * 60)
// NTP minimum interval to query same servers - 3 minutes
#define NTP_MIN_QUERY (3 * 60)
// NTP sample window (should be odd)
#define NTP_SAMPLE_WINDOW 9
@@ -39,8 +40,7 @@ static uint8_t SNTPQueryData[48] = {
#define NTP_OFF_XMITTS_FRAC 11
SNTPClient::SNTPClient(boost::asio::io_service& service) :
mIOService(service), mSocket(service), mTimer(service), mResolver(service),
SNTPClient::SNTPClient(boost::asio::io_service& service) : mSocket(service), mTimer(service), mResolver(service),
mOffset(0), mLastOffsetUpdate((time_t) -1), mReceiveBuffer(256)
{
mSocket.open(boost::asio::ip::udp::v4());
@@ -67,7 +67,7 @@ void SNTPClient::resolveComplete(const boost::system::error_code& error, boost::
SNTPQuery& query = mQueries[*sel];
time_t now = time(NULL);
if ((query.mLocalTimeSent == now) || ((query.mLocalTimeSent + 1) == now))
{
{ // This can happen if the same IP address is reached through multiple names
Log(lsTRACE) << "SNTP: Redundant query suppressed";
return;
}
@@ -231,7 +231,7 @@ bool SNTPClient::doQuery()
return false;
}
time_t now = time(NULL);
if ((best->second == now) || (best->second == (now - 1)))
if ((best->second != (time_t) -1) && ((best->second + NTP_MIN_QUERY) >= now))
{
Log(lsTRACE) << "SNTP: All servers recently queried";
return false;