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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-runtime-lib
* Created on: 27 янв. 2016 г.
*
* lsp-runtime-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-runtime-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-runtime-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_IPC_IEXECUTOR_H_
#define LSP_PLUG_IN_IPC_IEXECUTOR_H_
#include <lsp-plug.in/runtime/version.h>
#include <lsp-plug.in/common/types.h>
#include <lsp-plug.in/ipc/ITask.h>
namespace lsp
{
namespace ipc
{
class IExecutor
{
protected:
static inline void change_task_state(ITask *task, ITask::task_state_t state)
{
task->nState = state;
}
static inline void link_task(ITask *tail, ITask *link)
{
tail->pNext = link;
link->pNext = NULL;
}
static inline ITask *next_task(ITask *task)
{
ITask *next = task->pNext;
task->pNext = NULL;
return next;
}
static inline void run_task(ITask *task)
{
task->nState = ITask::TS_RUNNING;
task->nCode = 0;
task->nCode = task->run();
task->nState = ITask::TS_COMPLETED;
}
private:
IExecutor &operator = (const IExecutor &src); // Deny copying
public:
explicit IExecutor();
virtual ~IExecutor();
public:
/** Submit task for execution
*
* @param task task to execute
* @return true if task was submitted
*/
virtual bool submit(ITask *task);
/** Shutdown executor service
* The method must return only when all tasks
* have been completed or terminated
*
*/
virtual void shutdown();
};
} /* namespace ipc */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_IPC_IEXECUTOR_H_ */
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