oceanbase

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/**
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 * Copyright (c) 2021 OceanBase
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 * OceanBase CE is licensed under Mulan PubL v2.
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 * You can use this software according to the terms and conditions of the Mulan PubL v2.
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 * You may obtain a copy of Mulan PubL v2 at:
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 *          http://license.coscl.org.cn/MulanPubL-2.0
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 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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 * See the Mulan PubL v2 for more details.
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 */
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#define USING_LOG_PREFIX SERVER
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#include "observer/ob_startup_accel_task_handler.h"
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#include "share/ob_thread_mgr.h"
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#include "share/rc/ob_tenant_base.h"
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namespace oceanbase
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{
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namespace observer
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{
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const int64_t ObStartupAccelTaskHandler::MAX_QUEUED_TASK_NUM = 128;
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const int64_t ObStartupAccelTaskHandler::MAX_THREAD_NUM = 64;
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ObStartupAccelTaskHandler::ObStartupAccelTaskHandler()
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  : is_inited_(false),
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    tg_id_(-1),
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    task_allocator_()
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{}
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ObStartupAccelTaskHandler::~ObStartupAccelTaskHandler()
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{
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  destroy();
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}
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int ObStartupAccelTaskHandler::init(ObStartupAccelType accel_type)
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{
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  int ret = OB_SUCCESS;
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  ObMemAttr mem_attr = ObMemAttr(SERVER_ACCEL == accel_type ? OB_SERVER_TENANT_ID : MTL_ID(),
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                                 "StartupTask",
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                                 ObCtxIds::DEFAULT_CTX_ID);
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  if (is_inited_) {
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    ret = OB_INIT_TWICE;
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    LOG_WARN("ObStartupAccelTaskHandler has already been inited", K(ret));
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  } else if (OB_FAIL(task_allocator_.init(lib::ObMallocAllocator::get_instance(),
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      OB_MALLOC_NORMAL_BLOCK_SIZE, mem_attr))) {
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    LOG_WARN("fail to init tenant tiny allocator", K(ret));
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  } else if (SERVER_ACCEL == accel_type &&
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      OB_FAIL(TG_CREATE(lib::TGDefIDs::StartupAccelHandler, tg_id_))) {
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    LOG_WARN("lib::TGDefIDs::StartupAccelHandler tg create", K(ret));
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  } else if (TENANT_ACCEL == accel_type &&
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      OB_FAIL(TG_CREATE_TENANT(lib::TGDefIDs::StartupAccelHandler, tg_id_))) {
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    LOG_WARN("lib::TGDefIDs::StartupAccelHandler tg create", K(ret));
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  } else {
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    is_inited_ = true;
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    accel_type_ = accel_type;
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  }
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  return ret;
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}
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int64_t ObStartupAccelTaskHandler::get_thread_cnt()
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{
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  int64_t thread_cnt = 1;
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  if (lib::is_mini_mode()) {
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    thread_cnt = 1;
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  } else {
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    if (SERVER_ACCEL == accel_type_) {
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      thread_cnt = common::get_cpu_count();
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    } else {
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      thread_cnt = MTL_CPU_COUNT();
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    }
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  }
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  return std::min(MAX_THREAD_NUM, thread_cnt);
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}
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int ObStartupAccelTaskHandler::start()
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{
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  int ret = OB_SUCCESS;
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  if (IS_NOT_INIT) {
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    ret = OB_NOT_INIT;
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    LOG_WARN("ObStartupAccelTaskHandler not inited", K(ret));
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  } else if (OB_FAIL(TG_SET_HANDLER(tg_id_, *this))) {
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    LOG_WARN("tg set handler failed", K(ret), K(tg_id_));
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  } else if (OB_FAIL(TG_SET_THREAD_CNT(tg_id_, get_thread_cnt()))) {
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    LOG_WARN("tg set thread cnt failed", K(ret), K(tg_id_), K(get_thread_cnt()));
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  } else if (OB_FAIL(TG_START(tg_id_))) {
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    LOG_WARN("fail to start ObStartupAccelTaskHandler", K(ret));
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  }
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  return ret;
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}
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void ObStartupAccelTaskHandler::stop()
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{
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  if (IS_INIT) {
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    TG_STOP(tg_id_);
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  }
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}
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void ObStartupAccelTaskHandler::wait()
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{
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  if (IS_INIT) {
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    TG_WAIT(tg_id_);
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  }
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}
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void ObStartupAccelTaskHandler::destroy()
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{
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  if (IS_INIT) {
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    TG_STOP(tg_id_);
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    TG_WAIT(tg_id_);
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    TG_DESTROY(tg_id_);
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    tg_id_ = -1;
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    task_allocator_.reset();
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    is_inited_ = false;
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  }
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}
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int ObStartupAccelTaskHandler::push_task(ObStartupAccelTask *task)
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{
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  int ret = OB_SUCCESS;
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  if (IS_NOT_INIT) {
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    ret = OB_NOT_INIT;
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    LOG_WARN("ObStartupAccelTaskHandler not inited", K(ret));
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  } else if (OB_FAIL(TG_PUSH_TASK(tg_id_, task))) {
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    LOG_WARN("fail to push startup accel task", K(ret), KPC(task));
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  }
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  return ret;
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}
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void ObStartupAccelTaskHandler::handle(void *task)
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{
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  int ret = OB_SUCCESS;
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  if (NULL == task) {
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    ret = OB_ERR_UNEXPECTED;
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    LOG_WARN("task is null", K(ret));
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  } else {
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    ObStartupAccelTask *startup_task = static_cast<ObStartupAccelTask *>(task);
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    if (OB_FAIL(startup_task->execute())) {
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      LOG_WARN("fail to execute startup task", K(ret), KPC(startup_task));
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    }
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    startup_task->~ObStartupAccelTask();
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    task_allocator_.free(startup_task);
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  }
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}
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} // observer
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} // oceanbase
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