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Timestamps were expiring too soon.

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This commit is contained in:
JoelKatz
2012-09-03 09:54:27 -07:00
parent 1891cf0654
commit f4dad6fe3c
1 changed files with 6 additions and 3 deletions
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9
src/SNTPClient.cpp
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@@ -14,8 +14,8 @@
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 query frequency - 4 minutes
#define NTP_QUERY_FREQUENCY (4 * 60)
// NTP minimum interval to query same servers - 3 minutes
#define NTP_MIN_QUERY (3 * 60)
@@ -26,6 +26,9 @@ static uint8_t SNTPQueryData[48] =
// NTP timestamp constant
#define NTP_UNIX_OFFSET 0x83AA7E80
// NTP timestamp validity
#define NTP_TIMESTAMP_VALID ((NTP_QUERY_FREQUENCY + NTP_MIN_QUERY) * 2)
// SNTP packet offsets
#define NTP_OFF_INFO 0
#define NTP_OFF_ROOTDELAY 1
@@ -215,7 +218,7 @@ void SNTPClient::queryAll()
bool SNTPClient::getOffset(int& offset)
{
boost::mutex::scoped_lock sl(mLock);
if ((mLastOffsetUpdate == (time_t) -1) || ((mLastOffsetUpdate + 90) < time(NULL)))
if ((mLastOffsetUpdate == (time_t) -1) || ((mLastOffsetUpdate + NTP_TIMESTAMP_VALID) < time(NULL)))
return false;
offset = mOffset;
return true;