dtn::utils::Clock Class Reference

#include <Clock.h>

List of all members.

Public Member Functions
	Clock ()
virtual	~Clock ()
Static Public Member Functions
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 Public Attributes
static int	timezone = 0
static u_int32_t	TIMEVAL_CONVERSION = 946684800
static float	quality = 0
static bool	badclock = false

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Detailed Description

Definition at line 18 of file Clock.h.

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Constructor & Destructor Documentation

dtn::utils::Clock::Clock

(

)

Definition at line 25 of file Clock.cpp.

dtn::utils::Clock::~Clock

(

)

[virtual]

Definition at line 29 of file Clock.cpp.

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Member Function Documentation

size_t dtn::utils::Clock::getExpireTime

(

const dtn::data::Bundle &

b

)

[static]

Definition at line 33 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(), 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 48 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 53 of file Clock.cpp.

References getTime().

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size_t dtn::utils::Clock::getTime

(

)

[static]

Definition at line 100 of file Clock.cpp.

References TIMEVAL_CONVERSION, and timezone.

Referenced by getExpireTime(), dtn::data::PrimaryBlock::relabel(), dtn::routing::NeighborDatabase::NeighborEntry::reset(), dtn::data::DTNTime::set(), and dtn::core::WallClock::timeout().

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 81 of file Clock.cpp.

bool dtn::utils::Clock::isExpired

(

const dtn::data::Bundle &

b

)

[static]

Definition at line 70 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::core::BundleCore::validate().

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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 65 of file Clock.h.

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

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 59 of file Clock.h.

Referenced by dtn::data::BundleList::expire().

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 52 of file Clock.h.

Referenced by getTime().

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

Definition at line 50 of file Clock.h.

Referenced by getTime(), and setGlobalVars().

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

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