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allowing application to set transaction as PA unsafe

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* Removed transaction::p_unsafe_ member
* Changed transaction::pa_unsafe(bool) to modify flags member directly
* Modified transaction.cpp to use transaction.pa_unsafe(bool) rather than
  directly changing transaction's flag
* added method mark_transaction_pa_unsafe() for client_state,
  application will use this
This commit is contained in:
sjaakola
2021-05-14 14:56:02 +03:00
parent f271ad0c6e
commit 608ee82b26
3 changed files with 27 additions and 9 deletions
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16
include/wsrep/client_state.hpp
View File

@ -927,6 +927,22 @@ namespace wsrep
return transaction_;
}
/**
* Mark the transaction associated with the client state
* (if any), as unsafe for parallel applying
*
* @return Zero on success, non-zero on error.
*/
int mark_transaction_pa_unsafe()
{
if (transaction_.active())
{
transaction_.pa_unsafe(true);
return 0;
}
return 1;
}
const wsrep::ws_meta& toi_meta() const
{
return toi_meta_;

12
include/wsrep/transaction.hpp
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@ -143,9 +143,14 @@ namespace wsrep
int xa_replay(wsrep::unique_lock<wsrep::mutex>&);
bool pa_unsafe() const { return pa_unsafe_; }
void pa_unsafe(bool pa_unsafe) { pa_unsafe_ = pa_unsafe; }
bool pa_unsafe() const { return (flags() & wsrep::provider::flag::pa_unsafe); }
void pa_unsafe(bool pa_unsafe) {
if (pa_unsafe) {
flags(flags() | wsrep::provider::flag::pa_unsafe);
} else {
flags(flags() & ~wsrep::provider::flag::pa_unsafe);
}
}
bool implicit_deps() const { return implicit_deps_; }
void implicit_deps(bool implicit) { implicit_deps_ = implicit; }
@ -265,7 +270,6 @@ namespace wsrep
wsrep::ws_handle ws_handle_;
wsrep::ws_meta ws_meta_;
int flags_;
bool pa_unsafe_;
bool implicit_deps_;
bool certified_;
size_t fragments_certified_for_statement_;

8
src/transaction.cpp
View File

@ -101,7 +101,6 @@ wsrep::transaction::transaction(
, ws_handle_()
, ws_meta_()
, flags_()
, pa_unsafe_(false)
, implicit_deps_(false)
, certified_(false)
, fragments_certified_for_statement_()
@ -326,7 +325,7 @@ int wsrep::transaction::before_prepare(
{
// Force fragment replication on XA prepare
flags(flags() | wsrep::provider::flag::prepare);
flags(flags() | wsrep::provider::flag::pa_unsafe);
pa_unsafe(true);
append_sr_keys_for_commit();
const bool force_streaming_step = true;
ret = streaming_step(lock, force_streaming_step);
@ -1116,7 +1115,7 @@ int wsrep::transaction::commit_or_rollback_by_xid(const wsrep::xid& xid,
{
flags = wsrep::provider::flag::rollback;
}
flags = flags | wsrep::provider::flag::pa_unsafe;
pa_unsafe(true);
wsrep::stid stid(sa->transaction().server_id(),
sa->transaction().id(),
client_state_.id());
@ -1650,7 +1649,7 @@ int wsrep::transaction::certify_commit(
{
append_sr_keys_for_commit();
}
flags(flags() | wsrep::provider::flag::pa_unsafe);
pa_unsafe(true);
}
if (implicit_deps())
@ -1956,7 +1955,6 @@ void wsrep::transaction::cleanup()
ws_meta_ = wsrep::ws_meta();
flags_ = 0;
certified_ = false;
pa_unsafe_ = false;
implicit_deps_ = false;
sr_keys_.clear();
streaming_context_.cleanup();