15.2.6.4. ReaderHistory¶
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class
eprosima::fastrtps::rtps::ReaderHistory: public eprosima::fastrtps::rtps::History¶ Class ReaderHistory, container of the different CacheChanges of a reader
Public Functions
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ReaderHistory(const HistoryAttributes &att)¶ Constructor of the ReaderHistory. It needs a HistoryAttributes.
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bool
received_change(CacheChange_t *change, size_t)¶ Virtual method that is called when a new change is received. In this implementation this method just calls add_change. The suer can overload this method in case he needs to perform additional checks before adding the change.
- Return
True if added.
- Parameters
change: Pointer to the change
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bool
add_change(CacheChange_t *a_change)¶ Add a CacheChange_t to the ReaderHistory.
- Return
True if added.
- Parameters
a_change: Pointer to the CacheChange to add.
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iterator
remove_change_nts(const_iterator removal, bool release = true) override¶ Remove a specific change from the history. No Thread Safe
- Return
iterator to the next change if any
- Parameters
removal: iterator to the change for removalrelease: specifies if the change must be returned to the pool
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bool
matches_change(const CacheChange_t *inner, CacheChange_t *outer) override¶ Criteria to search a specific CacheChange_t on history
- Return
true if inner matches outer criteria
- Parameters
inner: change to compareouter: change for comparison
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bool
remove_changes_with_guid(const GUID_t &a_guid)¶ Remove all changes from the History that have a certain guid.
- Return
True if succesful, even if no changes have been removed.
- Parameters
a_guid: Pointer to the target guid to search for.
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bool
remove_fragmented_changes_until(const SequenceNumber_t &seq_num, const GUID_t &writer_guid)¶ Remove all fragmented changes from certain writer up to certain sequence number.
- Return
True if succesful, even if no changes have been removed.
- Parameters
seq_num: First SequenceNumber_t not to be removed.writer_guid: GUID of the writer for which changes should be looked for.
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