famouso::mw::afp::defrag::FragmentStats Struct Reference

Statistics about processed fragments. More...

#include <Statistics.h>

Public Member Functions
	FragmentStats ()
	Constructor (init to zero).
void	reset ()
	Reset statistics to zero.
Data Fields
unsigned int	expected
	Total fragment number of all (at least partially) received events. Increased when first fragment of an event is processed.
unsigned int	currently_expected
	Total number of fragments not received yet for all incomplete events. Increased when first fragment of an event is processed. Decreased for every processed fragment. After we are done with an event the value has been increased and decreased by the same number.
unsigned int	received
	Total number of all received fragments. Incremented when a fragment gets processed. received = incorrect_header + outdated + duplicates + used.
unsigned int	incorrect_header
	Total number of fragments that have be dopped because the header contains errors or uses features / size properties not available in the used AFP defrag configuration.
unsigned int	outdated
	Total number of outdated fragments. This includes fragments belonging to events which have already been reconstructed (late duplicates, redundancy fragments not needed) or dropped because of the timeout.
unsigned int	used
	Total number of fragments used for reconstruction of events. Incremented during fragment processing.
unsigned int	duplicates
	Total number of duplicates received during reconstruction of the events the duplicates belong to. Incremented during duplicate checking (if configured to check for duplicates).

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Detailed Description

Statistics about processed fragments.

The number of lost fragments can be approximated:

lost = expected - currently_expected - received

For short times the result may be slightly higher than the real value. The maximum difference is equal to the number of expected redundancy fragments not yet received.

Attention:

At the moment there is no overflow handling. Thus the statistics may be inconsistent if some values overflow while others do not yet.

See also:

EventStats, Statistics, NoStatistics

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Constructor & Destructor Documentation

famouso::mw::afp::defrag::FragmentStats::FragmentStats

(

)

[inline]

Constructor (init to zero).

References reset().

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Member Function Documentation

void famouso::mw::afp::defrag::FragmentStats::reset

(

)

[inline]

Reset statistics to zero.

Referenced by FragmentStats().

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Field Documentation

unsigned int famouso::mw::afp::defrag::FragmentStats::currently_expected

Total number of fragments not received yet for all incomplete events. Increased when first fragment of an event is processed. Decreased for every processed fragment. After we are done with an event the value has been increased and decreased by the same number.

unsigned int famouso::mw::afp::defrag::FragmentStats::duplicates

Total number of duplicates received during reconstruction of the events the duplicates belong to. Incremented during duplicate checking (if configured to check for duplicates).

unsigned int famouso::mw::afp::defrag::FragmentStats::expected

Total fragment number of all (at least partially) received events. Increased when first fragment of an event is processed.

unsigned int famouso::mw::afp::defrag::FragmentStats::incorrect_header

Total number of fragments that have be dopped because the header contains errors or uses features / size properties not available in the used AFP defrag configuration.

unsigned int famouso::mw::afp::defrag::FragmentStats::outdated

Total number of outdated fragments. This includes fragments belonging to events which have already been reconstructed (late duplicates, redundancy fragments not needed) or dropped because of the timeout.

unsigned int famouso::mw::afp::defrag::FragmentStats::received

Total number of all received fragments. Incremented when a fragment gets processed. received = incorrect_header + outdated + duplicates + used.

unsigned int famouso::mw::afp::defrag::FragmentStats::used

Total number of fragments used for reconstruction of events. Incremented during fragment processing.

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The documentation for this struct was generated from the following file:

• include/mw/afp/defrag/Statistics.h