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ebfc4e6ad0
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commit 86587affafe77ef555f7c3839839de44f0f203f3
Author: Tian Xia <tianx@fb.com>
Date: Tue Oct 4 10:01:52 2016 -0700
Allow filtering of show commands through admission control
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/*
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Portions Copyright (c) 2015-Present, Facebook, Inc.
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Portions Copyright (c) 2012, Monty Program Ab
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifdef USE_PRAGMA_IMPLEMENTATION
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#pragma implementation // gcc: Class implementation
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#endif
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/* The C++ file's header */
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#include "./rdb_threads.h"
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namespace myrocks {
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void* Rdb_thread::thread_func(void* thread_ptr)
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{
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DBUG_ASSERT(thread_ptr != nullptr);
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Rdb_thread* thread= static_cast<Rdb_thread*>(thread_ptr);
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if (!thread->m_run_once.exchange(true))
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{
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thread->run();
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thread->uninit();
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}
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return nullptr;
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}
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void Rdb_thread::init(
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#ifdef HAVE_PSI_INTERFACE
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my_core::PSI_mutex_key stop_bg_psi_mutex_key,
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my_core::PSI_cond_key stop_bg_psi_cond_key
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#endif
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)
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{
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DBUG_ASSERT(!m_run_once);
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mysql_mutex_init(stop_bg_psi_mutex_key, &m_signal_mutex, MY_MUTEX_INIT_FAST);
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mysql_cond_init(stop_bg_psi_cond_key, &m_signal_cond, nullptr);
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}
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void Rdb_thread::uninit()
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{
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mysql_mutex_destroy(&m_signal_mutex);
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mysql_cond_destroy(&m_signal_cond);
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}
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int Rdb_thread::create_thread(
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#ifdef HAVE_PSI_INTERFACE
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PSI_thread_key background_psi_thread_key
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#endif
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)
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{
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return mysql_thread_create(background_psi_thread_key,
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&m_handle, nullptr, thread_func, this);
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}
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void Rdb_thread::signal(bool stop_thread)
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{
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mysql_mutex_lock(&m_signal_mutex);
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if (stop_thread) {
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m_stop= true;
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}
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mysql_cond_signal(&m_signal_cond);
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mysql_mutex_unlock(&m_signal_mutex);
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}
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} // namespace myrocks
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