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src/sql/ob_sql_task.cpp

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * 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 PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX SQL
+
+#include "lib/queue/ob_fixed_queue.h"
+#include "ob_sql_task.h"
+#include "ob_sql.h"
+
+using namespace oceanbase::observer;
+using namespace oceanbase::common;
+using namespace oceanbase::obrpc;
+
+void ObSqlTaskHandler::reset()
+{
+  task_ = NULL;
+  sql_engine_ = NULL;
+}
+
+int ObSqlTaskHandler::init(observer::ObSrvTask* task, ObSql* sql_engine)
+{
+  int ret = OB_SUCCESS;
+  if (NULL == task || NULL == sql_engine) {
+    ret = OB_INVALID_ARGUMENT;
+    ;
+    SQL_LOG(WARN, "invalid argument", K(ret), KP(task), KP(sql_engine));
+  } else {
+    set_task_mark();
+    task_ = task;
+    sql_engine_ = sql_engine;
+  }
+  return ret;
+}
+
+int ObSqlTaskHandler::process()
+{
+  int ret = OB_SUCCESS;
+  if (NULL == task_) {
+    ret = OB_ERR_UNEXPECTED;
+    SQL_LOG(WARN, "task is null, unexpected error", K(ret), KP_(task));
+  } else if (NULL == sql_engine_) {
+    ret = OB_ERR_UNEXPECTED;
+    SQL_LOG(WARN, "sql engine is null, unexpected error", K(ret), KP_(sql_engine));
+  } else {
+    ObSqlTask* task = static_cast<ObSqlTask*>(task_);
+    ObCurTraceId::set(task->get_trace_id());
+    if (OB_FAIL(sql_engine_->handle_batch_req(
+            task->get_msg_type(), task->get_req_ts(), task->get_buf(), task->get_size()))) {
+      SQL_LOG(WARN, "handle sql task failed", K(ret), K(*task));
+    }
+  }
+  return ret;
+}
+
+void ObSqlTask::reset()
+{
+  msg_type_ = 0;
+  size_ = 0;
+  handler_.reset();
+}
+
+int ObSqlTask::init(
+    const int msg_type, const ObReqTimestamp& req_ts, const char* buf, const int64_t size, ObSql* sql_engine)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(buf) || OB_UNLIKELY(0 >= size) || OB_UNLIKELY(MAX_SQL_TASK_SIZE < size) || OB_ISNULL(sql_engine)) {
+    ret = OB_INVALID_ARGUMENT;
+    SQL_LOG(WARN, "invalid argument", K(ret), KP(buf), K(size), KP(sql_engine), K(msg_type));
+  } else if (OB_FAIL(handler_.init(this, sql_engine))) {
+    SQL_LOG(WARN, "ObSqlTaskHandler init failed", K(ret));
+  } else {
+    set_type(ObRequest::OB_SQL_TASK);
+    msg_type_ = msg_type;
+    memcpy(buf_, buf, size);
+    size_ = size;
+    req_ts_ = req_ts;
+    ObCurTraceId::TraceId* trace_id = ObCurTraceId::get_trace_id();
+    if (OB_LIKELY(NULL != trace_id)) {
+      trace_id_.set(*trace_id);
+    }
+  }
+  return ret;
+}
+
+int ObSqlTaskFactory::init()
+{
+  int ret = OB_SUCCESS;
+  int64_t fixed_num = 0;
+  if (!lib::is_mini_mode()) {
+    fixed_num = NORMAL_FIXED_TASK_NUM;
+  } else {
+    fixed_num = MINI_FIXED_TASK_NUM;
+  }
+  if (OB_FAIL(fixed_queue_.init(fixed_num))) {
+    SQL_LOG(WARN, "init fixed queue failed", K(ret), K(fixed_num));
+  } else {
+    for (int64_t i = 0; OB_SUCC(ret) && i < fixed_num; i++) {
+      ObSqlTask* task = alloc_(common::OB_SERVER_TENANT_ID);
+      if (OB_ISNULL(task)) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+      } else {
+        task->set_fixed_alloc();
+        if (OB_FAIL(fixed_queue_.push(task))) {
+          free_(task);
+          task = NULL;
+        }
+      }
+    }
+  }
+  return ret;
+}
+
+void ObSqlTaskFactory::destroy()
+{
+  ObSqlTask* task = NULL;
+  while (OB_SUCCESS == fixed_queue_.pop(task)) {
+    free_(task);
+    task = NULL;
+  }
+}
+
+ObSqlTask* ObSqlTaskFactory::alloc(const uint64_t tenant_id)
+{
+  int ret = OB_SUCCESS;
+  ObSqlTask* task = NULL;
+  if (OB_FAIL(fixed_queue_.pop(task))) {
+    task = alloc_(tenant_id);
+  }
+  return task;
+}
+
+void ObSqlTaskFactory::free(ObSqlTask* task)
+{
+  int ret = OB_SUCCESS;
+  if (NULL != task) {
+    if (task->is_fixed_alloc()) {
+      if (OB_FAIL(fixed_queue_.push(task))) {
+        SQL_LOG(WARN, "free sql task failed", K(ret));
+      }
+    } else {
+      free_(task);
+    }
+  }
+}
+
+ObSqlTaskFactory& ObSqlTaskFactory::get_instance()
+{
+  static ObSqlTaskFactory instance;
+  return instance;
+}
+
+ObSqlTask* ObSqlTaskFactory::alloc_(const uint64_t tenant_id)
+{
+  ObMemAttr memattr(tenant_id, "OB_SQL_TASK");
+  void* ptr = NULL;
+  ObSqlTask* task = NULL;
+  if (NULL != (ptr = ob_malloc(sizeof(ObSqlTask), memattr))) {
+    task = new (ptr) ObSqlTask();
+  }
+  return task;
+}
+
+void ObSqlTaskFactory::free_(ObSqlTask* task)
+{
+  if (NULL != task) {
+    task->~ObSqlTask();
+    ob_free(task);
+    task = NULL;
+  }
+}