#include <Clock.h>

Static Public Member Functions
static size_t	getUnixTimestamp ()
static size_t	getTime ()
static bool	isExpired (const dtn::data::Bundle &b)
static bool	isExpired (size_t timestamp, size_t lifetime=0) __attribute__((deprecated))
static size_t	getExpireTime (const dtn::data::Bundle &b)
static size_t	getExpireTime (size_t timestamp, size_t lifetime) __attribute__((deprecated))
static size_t	getExpireTime (size_t lifetime)
static void	settimeofday (struct timeval *tv)
static void	gettimeofday (struct timeval *tv)
static void	setOffset (struct timeval &tv)
Static Public Attributes
static int	timezone = 0
static u_int32_t	TIMEVAL_CONVERSION = 946684800
static float	quality = 0
static bool	badclock = false
static bool	modify_clock = false

Detailed Description

Definition at line 20 of file Clock.h.

Member Function Documentation

size_t dtn::utils::Clock::getExpireTime ( const dtn::data::Bundle & b ) [static]

Definition at line 39 of file Clock.cpp.

References dtn::data::PrimaryBlock::_lifetime, dtn::data::PrimaryBlock::_timestamp, badclock, dtn::data::Bundle::getBlock(), dtn::data::AgeBlock::getSeconds(), and getTime().

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

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size_t dtn::utils::Clock::getExpireTime	(	size_t	timestamp,
		size_t	lifetime
	)		`[static]`

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

Definition at line 54 of file Clock.cpp.

size_t dtn::utils::Clock::getExpireTime ( size_t 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 59 of file Clock.cpp.

References getTime().

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size_t dtn::utils::Clock::getTime ( ) [static]

Definition at line 106 of file Clock.cpp.

References gettimeofday(), TIMEVAL_CONVERSION, and timezone.

Referenced by dtn::net::ConnectionManager::componentUp(), dtn::core::Node::expire(), getExpireTime(), dtn::net::DiscoveryAgent::received(), dtn::data::PrimaryBlock::relabel(), dtn::routing::NeighborDatabase::NeighborEntry::reset(), dtn::core::WallClock::timeout(), dtn::api::Registration::underflow(), dtn::daemon::DTNTPWorker::update(), and dtn::core::BundleCore::validate().

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void dtn::utils::Clock::gettimeofday ( struct timeval * tv ) [static]

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

Parameters:

tv

Definition at line 183 of file Clock.cpp.

References modify_clock, and timezone.

Referenced by dtn::daemon::DTNTPWorker::callbackBundleReceived(), getTime(), getUnixTimestamp(), dtn::data::DTNTime::set(), setOffset(), settimeofday(), and dtn::daemon::DTNTPWorker::TimeSyncMessage::TimeSyncMessage().

size_t dtn::utils::Clock::getUnixTimestamp ( ) [static]

Definition at line 123 of file Clock.cpp.

References gettimeofday(), and timezone.

Referenced by dtn::routing::StaticRoutingExtension::notify(), dtn::daemon::DTNTPWorker::raiseEvent(), and dtn::core::WallClock::timeout().

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bool dtn::utils::Clock::isExpired ( const dtn::data::Bundle & b ) [static]

Definition at line 76 of file Clock.cpp.

References dtn::data::PrimaryBlock::_lifetime, dtn::data::PrimaryBlock::_timestamp, dtn::data::Bundle::getBlock(), and dtn::data::AgeBlock::getSeconds().

Referenced by dtn::routing::ProphetRoutingExtension::AcknowledgementSet::purge(), dtn::routing::BaseRouter::raiseEvent(), and dtn::core::BundleCore::validate().

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bool dtn::utils::Clock::isExpired	(	size_t	timestamp,
		size_t	lifetime = `0`
	)		`[static]`

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

Definition at line 87 of file Clock.cpp.

void dtn::utils::Clock::setOffset ( struct timeval & tv ) [static]

set the local offset of the clock

Parameters:

tv

Definition at line 134 of file Clock.cpp.

References gettimeofday(), IBRCOMMON_LOGGER, IBRCOMMON_LOGGER_ENDL, modify_clock, settimeofday(), and timezone.

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void dtn::utils::Clock::settimeofday ( struct timeval * tv ) [static]

Tells the internal clock the offset to the common network time.

Definition at line 160 of file Clock.cpp.

References gettimeofday(), IBRCOMMON_LOGGER, IBRCOMMON_LOGGER_ENDL, modify_clock, and timezone.

Referenced by setOffset().

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Member Data Documentation

bool dtn::utils::Clock::badclock = false [static]

If set to true, all time based functions assume a bad clock and try to use other mechanisms to detect expiration.

Definition at line 83 of file Clock.h.

Referenced by getExpireTime(), dtn::daemon::Configuration::params(), and dtn::data::PrimaryBlock::relabel().

bool dtn::utils::Clock::modify_clock = false [static]

if set to true, the function settimeofday() and setOffset() will modify the clock of the host instead of storing the local offset.

Definition at line 89 of file Clock.h.

Referenced by gettimeofday(), dtn::daemon::Configuration::TimeSync::load(), setOffset(), and settimeofday().

float dtn::utils::Clock::quality = 0 [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 quality of time.

Definition at line 77 of file Clock.h.

Referenced by dtn::daemon::DTNTPWorker::callbackBundleReceived(), dtn::daemon::DTNTPWorker::DTNTPWorker(), dtn::data::BundleList::expire(), dtn::daemon::DTNTPWorker::raiseEvent(), dtn::daemon::Configuration::Security::TLSRequired(), dtn::daemon::DTNTPWorker::update(), and dtn::core::BundleCore::validate().

u_int32_t dtn::utils::Clock::TIMEVAL_CONVERSION = 946684800 [static]

The number of seconds between 1/1/1970 and 1/1/2000.

Definition at line 70 of file Clock.h.

Referenced by getTime().

int dtn::utils::Clock::timezone = 0 [static]

Definition at line 68 of file Clock.h.

Referenced by getTime(), gettimeofday(), getUnixTimestamp(), setGlobalVars(), setOffset(), and settimeofday().

The documentation for this class was generated from the following files:

ibrdtn/ibrdtn/utils/Clock.h
ibrdtn/ibrdtn/utils/Clock.cpp

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation

Member Data Documentation