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Add support for custom provider implementation
- Add a set_provider_factory() method to server_state to allow injecting provider factory which will be called when the provider is loaded. Other related changes: - Implement to_string() helper method for id class. - Fix id ostream operator human readable id printing. - Pass victim client_service as an argument to provider::bf_abort() to allow passing victim context to custom provider. - Implement prev() helper method for seqno class. - Make server_state recover_streaming_appliers_if_not_recovered() public. In some recovery scenarios the method must be called outside of server_state internal code paths. - Add storage_service requires_globals() method. The storage service implementation may override this to return false if changing to storage service context does not require store/reset globals. - Change view final() to also require that the view status is not primary for the view to be final. Also change the method name to is_final() to avoid confusion with C++ final identifier. - Fixes to server state handling in disconnecting and disconnected states. - Keep TOI meta data over whole TOI critical section. Co-authored-by: Denis Protivensky <denis.protivensky@galeracluster.com>
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@ -63,6 +63,7 @@ namespace wsrep
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enum wsrep::provider::status
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bf_abort(wsrep::seqno,
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wsrep::transaction_id,
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wsrep::client_service&,
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wsrep::seqno&) WSREP_OVERRIDE;
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enum wsrep::provider::status
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rollback(const wsrep::transaction_id) WSREP_OVERRIDE;
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@ -83,6 +84,7 @@ namespace wsrep
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int)
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WSREP_OVERRIDE;
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enum wsrep::provider::status leave_toi(wsrep::client_id,
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const wsrep::ws_meta& ws_meta,
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const wsrep::mutable_buffer&)
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WSREP_OVERRIDE;
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std::pair<wsrep::gtid, enum wsrep::provider::status>
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