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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_ITASK_H_
#define LSP_PLUG_IN_IPC_ITASK_H_
#include <lsp-plug.in/runtime/version.h>
#include <lsp-plug.in/common/status.h>
#include <lsp-plug.in/ipc/IRunnable.h>
namespace lsp
{
namespace ipc
{
class ITask: public IRunnable
{
public:
enum task_state_t
{
TS_IDLE,
TS_SUBMITTED,
TS_RUNNING,
TS_COMPLETED
};
protected:
// Task linking
ITask *pNext;
int nCode;
// Task state
volatile task_state_t nState;
// Executor service
friend class IExecutor;
static inline bool successful(int code) { return code == STATUS_OK; };
public:
ITask();
virtual ~ITask();
public:
virtual status_t run();
public:
/** Check that task status is idle
*
* @return true if task status is idle
*/
inline bool idle() const { return nState == TS_IDLE; };
/** Check that task status is submitted
*
* @return true if task status is submitted
*/
inline bool submitted() const { return nState == TS_SUBMITTED; };
/** Check that task status is running
*
* @return true if task status is running
*/
inline bool running() const { return nState == TS_RUNNING; };
/** Check that task status is completed
*
* @return true if task status is completed
*/
inline bool completed() const { return nState == TS_COMPLETED; };
/** Check that execution was successful
*
* @return true if execution was successful;
*/
inline bool successful() const { return successful(nCode); };
/** Get last execution code
*
* @return last execution code
*/
inline int code() const { return nCode; };
/** Get current state of task
*
* @return current task state
*/
inline task_state_t state() const {return nState; };
/** Reset task state
*
* @return task state
*/
inline bool reset()
{
if (nState != TS_COMPLETED)
return false;
nState = TS_IDLE;
return true;
}
};
} /* namespace ipc */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_IPC_ITASK_H_ */
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