first commit for openGauss server

src/include/threadpool/threadpool.h

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2020 Huawei Technologies Co.,Ltd.
+ *
+ * openGauss is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *
+ *          http://license.coscl.org.cn/MulanPSL2
+ *
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ * ---------------------------------------------------------------------------------------
+ * 
+ * threadpool.h
+ *     Include all thread pool header file.
+ * 
+ * IDENTIFICATION
+ *        src/include/threadpool/threadpool.h
+ *
+ * ---------------------------------------------------------------------------------------
+ */
+
+
+#ifndef THREAD_POOL_H
+#define THREAD_POOL_H
+
+#include "threadpool/threadpool_controler.h"
+#include "threadpool/threadpool_group.h"
+#include "threadpool/threadpool_listener.h"
+#include "threadpool/threadpool_sessctl.h"
+#include "threadpool/threadpool_worker.h"
+#include "threadpool/threadpool_scheduler.h"
+
+#define ENABLE_THREAD_POOL (g_threadPoolControler != NULL)
+#define IS_THREAD_POOL_WORKER (t_thrd.role == THREADPOOL_WORKER)
+#define IS_THREAD_POOL_SESSION (u_sess->session_id > 0)
+#define THREAD_CORE_RATIO 1
+#define DEFAULT_THREAD_POOL_SIZE 16
+#define DEFAULT_THREAD_POOL_GROUPS 2
+#define MAX_THREAD_POOL_SIZE 4096
+#define MAX_THREAD_POOL_GROUPS 64
+
+extern ThreadPoolControler* g_threadPoolControler;
+
+extern void BackendWorkerIAm();
+
+/* Interface for thread pool listener */
+extern void TpoolListenerMain(ThreadPoolListener* listener);
+extern void ThreadPoolListenerIAm();
+
+#endif /* THREAD_POOL_H */