#include <Clock.h>

Collaboration diagram for dtn::utils::Clock:

Static Public Member Functions
static dtn::data::Timestamp	getMonotonicTimestamp ()

static dtn::data::Timestamp	getTime ()

static bool	isExpired (const dtn::data::Timestamp &timestamp, const dtn::data::Number &lifetime)

static bool	isExpired (const dtn::data::Bundle &b)

static bool	isExpired (const dtn::data::MetaBundle &m)

static dtn::data::Timestamp	getExpireTime (const dtn::data::Bundle &b)

static dtn::data::Timestamp	getExpireTime (const dtn::data::Timestamp &timestamp, const dtn::data::Number &lifetime) __attribute__((deprecated))

static dtn::data::Timestamp	getExpireTime (const dtn::data::Number &lifetime)

static void	settimeofday (struct timeval *tv)

static void	gettimeofday (struct timeval *tv)

static void	getdtntimeofday (struct timeval *tv)

static void	setOffset (const struct timeval &tv)

static const struct timeval &	getOffset ()

static double	getRating ()

static void	setRating (double val)

static bool	shouldModifyClock ()

static void	setModifyClock (bool val)

static double	toDouble (const timeval &val)

static dtn::data::Timestamp	getUptime ()

Static Public Attributes
static const dtn::data::Timestamp	TIMEVAL_CONVERSION = 946684800

Detailed Description

Definition at line 71 of file Clock.h.

Member Function Documentation

void dtn::utils::Clock::getdtntimeofday ( struct timeval * tv )

static

Get the time of the day like ::gettimeofday(), but correct the value by the known clock offset and the bundle protocol time offset.

Parameters

tv

Definition at line 263 of file Clock.cpp.

References dtn::data::SDNV< E >::get(), gettimeofday(), and TIMEVAL_CONVERSION.

Referenced by getTime(), and dtn::data::DTNTime::set().

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dtn::data::Timestamp dtn::utils::Clock::getExpireTime ( const dtn::data::Bundle & b )

static

Return the time of expiration of the given bundle

Definition at line 91 of file Clock.cpp.

References dtn::data::Bundle::find(), dtn::data::AgeBlock::getSeconds(), getTime(), dtn::data::PrimaryBlock::lifetime, and dtn::data::BundleID::timestamp.

Referenced by dtn::utils::Utils::encapsule(), dtn::data::DefaultDeserializer::operator>>(), dtn::core::FragmentManager::setOffset(), dtn::storage::SQLiteDatabase::store(), and dtn::routing::NeighborDatabase::NeighborEntry::update().

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dtn::data::Timestamp dtn::utils::Clock::getExpireTime	(	const dtn::data::Timestamp &	timestamp,
		const dtn::data::Number &	lifetime
	)

static

This method is deprecated because it does not recognize the AgeBlock as alternative age verification.

Definition at line 112 of file Clock.cpp.

dtn::data::Timestamp dtn::utils::Clock::getExpireTime ( const dtn::data::Number & lifetime )

static

Returns the timestamp when this lifetime is going to be expired depending on the current knowledge of time.

Parameters

lifetime The lifetime in seconds.

Returns: A DTN timestamp.

Definition at line 117 of file Clock.cpp.

References getTime().

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dtn::data::Timestamp dtn::utils::Clock::getMonotonicTimestamp ( )

static

Return a monotonic timestamp, valid within the current process only

Definition at line 175 of file Clock.cpp.

Referenced by dtn::routing::DeliveryPredictabilityMap::age(), dtn::security::KeyExchangeSession::KeyExchangeSession(), dtn::net::DiscoveryAgent::onBeaconReceived(), dtn::routing::ProphetRoutingExtension::ProphetRoutingExtension(), dtn::net::DiscoveryAgent::raiseEvent(), dtn::daemon::DTNTPWorker::raiseEvent(), dtn::routing::StaticRoutingExtension::raiseEvent(), dtn::routing::ProphetRoutingExtension::raiseEvent(), dtn::security::KeyExchanger::raiseEvent(), dtn::routing::DeliveryPredictabilityMap::restore(), dtn::routing::DeliveryPredictabilityMap::store(), dtn::core::WallClock::timeout(), and dtn::security::KeyExchangeSession::touch().

const struct timeval & dtn::utils::Clock::getOffset ( )

static

Returns the local offset of the clock (prior set by setOffset)

Definition at line 182 of file Clock.cpp.

Referenced by dtn::daemon::NativeDaemon::getStats().

double dtn::utils::Clock::getRating ( )

static

Defines an estimation about the precision of the local time. If the clock is definitely wrong the value is zero and one when we have a perfect time sync. Everything between one and zero gives an abstract knowledge about the rating of the local clock.

Definition at line 59 of file Clock.cpp.

Referenced by dtn::daemon::DTNTPWorker::callbackBundleReceived(), dtn::daemon::NativeDaemon::getStats(), gettimeofday(), isExpired(), dtn::daemon::DTNTPWorker::onUpdateBeacon(), dtn::daemon::DTNTPWorker::raiseEvent(), dtn::data::PrimaryBlock::relabel(), setOffset(), settimeofday(), dtn::daemon::Configuration::Security::TLSRequired(), and dtn::core::BundleCore::validate().