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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/provider.hpp
View File

@ -124,21 +124,25 @@ namespace wsrep
, stid_()
, depends_on_()
, flags_()
, provider_position_()
{ }
ws_meta(const wsrep::gtid& gtid,
const wsrep::stid& stid,
wsrep::seqno depends_on,
int flags)
int flags,
int64_t provider_position)
: gtid_(gtid)
, stid_(stid)
, depends_on_(depends_on)
, flags_(flags)
, provider_position_(provider_position)
{ }
ws_meta(const wsrep::stid& stid)
: gtid_()
, stid_(stid)
, depends_on_()
, flags_()
, provider_position_()
{ }
const wsrep::gtid& gtid() const { return gtid_; }
const wsrep::id& group_id() const
@ -170,6 +174,8 @@ namespace wsrep
wsrep::seqno depends_on() const { return depends_on_; }
int64_t provider_position() const { return provider_position_; }
int flags() const { return flags_; }
bool operator==(const ws_meta& other) const
@ -186,6 +192,8 @@ namespace wsrep
wsrep::stid stid_;
wsrep::seqno depends_on_;
int flags_;
/** Field reserved for provider to report its internal position. */
int64_t provider_position_;
};
std::string flags_to_string(int flags);