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-rw-r--r--storage/rocksdb/rdb_threads.cc83
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diff --git a/storage/rocksdb/rdb_threads.cc b/storage/rocksdb/rdb_threads.cc
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+/*
+ Portions Copyright (c) 2015-Present, Facebook, Inc.
+ Portions Copyright (c) 2012, Monty Program Ab
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */
+
+#ifdef USE_PRAGMA_IMPLEMENTATION
+#pragma implementation // gcc: Class implementation
+#endif
+
+#include <my_global.h>
+
+/* The C++ file's header */
+#include "./rdb_threads.h"
+
+namespace myrocks {
+
+void *Rdb_thread::thread_func(void *const thread_ptr) {
+ DBUG_ASSERT(thread_ptr != nullptr);
+ Rdb_thread *const thread = static_cast<Rdb_thread *>(thread_ptr);
+ if (!thread->m_run_once.exchange(true)) {
+ thread->setname();
+ thread->run();
+ thread->uninit();
+ }
+ return nullptr;
+}
+
+void Rdb_thread::init(
+#ifdef HAVE_PSI_INTERFACE
+ my_core::PSI_mutex_key stop_bg_psi_mutex_key,
+ my_core::PSI_cond_key stop_bg_psi_cond_key
+#endif
+) {
+ DBUG_ASSERT(!m_run_once);
+ mysql_mutex_init(stop_bg_psi_mutex_key, &m_signal_mutex, MY_MUTEX_INIT_FAST);
+ mysql_cond_init(stop_bg_psi_cond_key, &m_signal_cond, nullptr);
+}
+
+void Rdb_thread::uninit() {
+ mysql_mutex_destroy(&m_signal_mutex);
+ mysql_cond_destroy(&m_signal_cond);
+}
+
+int Rdb_thread::create_thread(const std::string &thread_name
+#ifdef HAVE_PSI_INTERFACE
+ ,
+ PSI_thread_key background_psi_thread_key
+#endif
+) {
+ // Make a copy of the name so we can return without worrying that the
+ // caller will free the memory
+ m_name = thread_name;
+
+ return mysql_thread_create(background_psi_thread_key, &m_handle, nullptr,
+ thread_func, this);
+
+}
+
+void Rdb_thread::signal(const bool stop_thread) {
+ RDB_MUTEX_LOCK_CHECK(m_signal_mutex);
+
+ if (stop_thread) {
+ m_stop = true;
+ }
+
+ mysql_cond_signal(&m_signal_cond);
+
+ RDB_MUTEX_UNLOCK_CHECK(m_signal_mutex);
+}
+
+} // namespace myrocks