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Add provider position field to ws_meta and view

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Provider position is needed in coordinated recovery
between application and provider. Pass the position
info from provider to application to allow making
it durable.
This commit is contained in:
Teemu Ollakka
2022-03-22 17:43:52 +02:00
parent 51e162d6f4
commit 7498ed424a
13 changed files with 123 additions and 86 deletions
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10
include/wsrep/view.hpp
View File

@ -70,6 +70,7 @@ namespace wsrep
, capabilities_()
, own_index_(-1)
, protocol_version_(0)
, provider_position_()
, members_()
{ }
view(const wsrep::gtid& state_id,
@ -78,13 +79,15 @@ namespace wsrep
int capabilities,
ssize_t own_index,
int protocol_version,
const std::vector<wsrep::view::member>& members)
const std::vector<wsrep::view::member>& members,
int64_t provider_position)
: state_id_(state_id)
, view_seqno_(view_seqno)
, status_(status)
, capabilities_(capabilities)
, own_index_(own_index)
, protocol_version_(protocol_version)
, provider_position_(provider_position)
, members_(members)
{ }
@ -111,6 +114,9 @@ namespace wsrep
int protocol_version() const
{ return protocol_version_; }
int64_t provider_position() const
{ return provider_position_; }
const std::vector<member>& members() const
{ return members_; }
@ -147,6 +153,8 @@ namespace wsrep
int capabilities_;
ssize_t own_index_;
int protocol_version_;
/** Field reserved for provider to report its internal position. */
int64_t provider_position_;
std::vector<wsrep::view::member> members_;
};