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Introduced adopt_transaction() for storage_service interface

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A SR transaction must be adopted by a storage service instance
running in background rollbacker thread while it is aborting a
SR transaction.
This commit is contained in:
Teemu Ollakka
2018-07-13 15:36:27 +03:00
parent 22d7a31d81
commit 4cfb9b6413
10 changed files with 43 additions and 32 deletions
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17
src/transaction.cpp
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@ -173,6 +173,7 @@ void wsrep::transaction::adopt(const wsrep::transaction& transaction)
debug_log_state("adopt enter");
assert(transaction.is_streaming());
start_transaction(transaction.id());
server_id_ = transaction.server_id_;
flags_ = transaction.flags();
streaming_context_ = transaction.streaming_context();
debug_log_state("adopt leave");
@ -863,10 +864,18 @@ void wsrep::transaction::state(
// BF aborter is allowed to change the state to must abort and
// further to aborting and aborted if the background rollbacker
// is launched.
assert(client_state_.owning_thread_id_ == wsrep::this_thread::get_id() ||
next_state == s_must_abort ||
next_state == s_aborting ||
next_state == s_aborted);
//
// For high priority streaming applier threads the assertion must
// be relaxed to check only current thread id which indicates that
// the store_globals() has been called before processing of write set
// starts.
assert((client_state_.owning_thread_id_ == wsrep::this_thread::get_id() ||
next_state == s_must_abort ||
next_state == s_aborting ||
next_state == s_aborted)
||
(client_state_.mode() == wsrep::client_state::m_high_priority &&
wsrep::this_thread::get_id() == client_state_.current_thread_id_));
static const char allowed[n_states][n_states] =
{ /* ex pr ce co oc ct cf ma ab ad mr re */
{ 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0}, /* ex */