lib/wsrep-lib
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Allow replaying - preparing transition to get rid of extra state

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checks in prepare calls.
This commit is contained in:
Teemu Ollakka
2018-06-13 16:00:09 +03:00
parent 4c1ea388f8
commit 94b4d3a7db
1 changed files with 8 additions and 27 deletions
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35
src/transaction_context.cpp
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@ -142,10 +142,7 @@ int wsrep::transaction_context::before_prepare(
return 1;
}
if (state() != s_replaying)
{
state(lock, s_preparing);
}
state(lock, s_preparing);
switch (client_context_.mode())
{
@ -182,7 +179,7 @@ int wsrep::transaction_context::before_prepare(
break;
}
assert(state() == s_preparing || state() == s_replaying);
assert(state() == s_preparing);
debug_log_state("before_prepare_leave");
return ret;
}
@ -193,8 +190,7 @@ int wsrep::transaction_context::after_prepare(
assert(lock.owns_lock());
int ret(1);
debug_log_state("after_prepare_enter");
assert(state() == s_preparing || state() == s_must_abort ||
state() == s_replaying);
assert(state() == s_preparing || state() == s_must_abort);
if (state() == s_must_abort)
{
assert(client_context_.mode() == wsrep::client_context::m_replicating);
@ -213,11 +209,8 @@ int wsrep::transaction_context::after_prepare(
break;
case wsrep::client_context::m_local:
case wsrep::client_context::m_applier:
if (state() != s_replaying)
{
state(lock, s_certifying);
state(lock, s_committing);
}
state(lock, s_certifying);
state(lock, s_committing);
ret = 0;
break;
default:
@ -239,7 +232,8 @@ int wsrep::transaction_context::before_commit()
state() == s_committing ||
state() == s_must_abort ||
state() == s_replaying);
assert(state() != s_committing || certified());
assert((state() != s_committing && state() != s_replaying) ||
certified());
switch (client_context_.mode())
{
@ -320,19 +314,6 @@ int wsrep::transaction_context::before_commit()
{
state(lock, s_must_abort);
}
else
{
if (state() == s_executing)
{
// 1pc
state(lock, s_certifying);
state(lock, s_committing);
}
else if (state() == s_replaying)
{
state(lock, s_committing);
}
}
break;
default:
assert(0);
@ -647,7 +628,7 @@ void wsrep::transaction_context::state(
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0}, /* ab */
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /* ad */
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}, /* mr */
{ 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0} /* re */
{ 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0} /* re */
};
if (allowed[state_][next_state])
{