src/launchpad-process-pool/loader_executor.hh

   1 /*
   2  * Copyright (c) 2023 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef LAUNCHPAD_PROCESS_POOL_LOADER_EXECUTOR_HH_
  18 #define LAUNCHPAD_PROCESS_POOL_LOADER_EXECUTOR_HH_
  19
  20 #include <memory>
  21 #include <string>
  22 #include <vector>
  23
  24 #include "launchpad-process-pool/executor.hh"
  25 #include "launchpad-process-pool/loader_context.hh"
  26 #include "launchpad-process-pool/process_pool.hh"
  27
  28 namespace launchpad {
  29
  30 class LoaderExecutor : public Executor::Delegator,
  31                        public Executor,
  32                        public ProcessPool::IEvent {
  33  public:
  34   LoaderExecutor(const LoaderExecutor&) = delete;
  35   LoaderExecutor& operator=(const LoaderExecutor&) = delete;
  36   LoaderExecutor(LoaderExecutor&&) = delete;
  37   LoaderExecutor& operator=(LoaderExecutor&&) = delete;
  38
  39   static LoaderExecutor& GetInst();
  40
  41   pid_t Execute(const LoaderContext* loader_context, int priority);
  42   bool HasCandidateProcess() const;
  43
  44  private:
  45   LoaderExecutor();
  46   ~LoaderExecutor() = default;
  47
  48   void OnExecution() override;
  49   void OnRequestReceived(std::shared_ptr<AppPacket> app_packet) override;
  50   std::vector<std::string> CreateLoaderArgv(
  51       const LoaderContext* loader_context);
  52
  53  private:
  54   std::unique_ptr<ProcessPool> process_pool_;
  55   std::vector<std::string> loader_argv_;
  56 };
  57
  58 }  // namespace launchpad
  59
  60 #endif  // LAUNCHPAD_PROCESS_POOL_LOADER_EXECUTOR_HH_