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#ifndef __ASURA_THREAD_H__
#define __ASURA_THREAD_H__
#include <string>
#include <queue>
#include <asura-utils/scripting/portable.hpp>
#include "task.h"
#include "mutex.h"
#include "semaphore.h"
#include "threadable.h"
namespace_begin(AsuraEngine)
namespace_begin(Threading)
class ThreadImpl;
///
/// ̵߳ļֲͬʵ֣
/// 1: Deferredӳģʽ߳ϵɺҪ̵ֶ߳Dispatch
/// ̵߳ص첽Ϊͬlua_Stateͻ⡣
/// 2: Immediateģʽÿһ߳άһlua_newthreadlua_State
/// صڲͬlua_Stateеãⲻ̷ͬ߳ͬһlua_State
///
enum ThreadType
{
THREAD_TYPE_DEFERRED,
THREAD_TYPE_IMMEDIATE, // unsafe
};
enum ThreadState
{
THREAD_STATE_IDLE, ///< ãδں˶
THREAD_STATE_RUNNING, ///< ѭ
THREAD_STATE_PAUSED, ///< ѭͣ
THREAD_STATE_STOPPED, ///< ˳ѭ
};
///
/// ߳壬ÿ߳άһtask queue
///
class Thread ASURA_FINAL
: public AEScripting::Portable<Thread>
, public Threadable
{
public:
LUAX_DECL_FACTORY(Thread);
Thread(lua_State* luaThread, ThreadType type = THREAD_TYPE_DEFERRED, uint sleepTime = 1, const std::string& name = "");
~Thread();
bool AddTask(Task* task);
///
/// õȴ
///
uint GetTaskCount();
void Idle();
///
/// ں˶Сdaemonȴֶstopijʱ̶ɺԶstop
///
bool Start(bool daemon = true, uint32 stacksize = 0);
///
/// ͬ߳̿ƣʵʱġҪ߳ʹIsȷϵָ״̬
///
void Pause();
void Resume();
void Stop();
///
/// ͬ߳̿ƣȷźźִС̵߳ȴ
///
void PauseSync();
void ResumeSync();
void StopSync();
///
/// ̵߳ȴ߳̽żִС
///
void Join();
ThreadState GetState();
///
/// ߳״̬
/// 1: IdleУ̴߳Ĭ״̬ʱStart
/// 2: RunningУں˶´Ѿں˵УTask
/// 3: PausedͣȻںУ˶Ĵͣ
/// 4: StoppedֹͣȻںУѾ
///
bool IsIdle();
bool IsRunning();
bool IsPaused();
bool IsStopped();
bool IsCurrent();
///
/// ִС
///
int Process() override;
const std::string& GetName();
///
/// ص
///
void Dispatch();
///
/// ߺ
///
void Sleep(uint ms);
///
/// ʱ
///
void SetSleepTime(uint ms);
private:
//----------------------------------------------------------------------------//
LUAX_DECL_ENUM(ThreadType);
LUAX_DECL_ENUM(ThreadState);
LUAX_DECL_METHOD(_New);
LUAX_DECL_METHOD(_AddTask);
LUAX_DECL_METHOD(_Start);
LUAX_DECL_METHOD(_Idle);
LUAX_DECL_METHOD(_Pause);
LUAX_DECL_METHOD(_Resume);
LUAX_DECL_METHOD(_Stop);
LUAX_DECL_METHOD(_Join);
LUAX_DECL_METHOD(_IsRunning);
LUAX_DECL_METHOD(_IsPaused);
LUAX_DECL_METHOD(_IsStopped);
LUAX_DECL_METHOD(_IsCurrent);
LUAX_DECL_METHOD(_Sleep);
LUAX_DECL_METHOD(_Dispatch);
LUAX_DECL_METHOD(_GetName);
LUAX_DECL_METHOD(_GetType);
LUAX_DECL_METHOD(_GetState);
LUAX_DECL_METHOD(_SetSleepTime);
//----------------------------------------------------------------------------//
ThreadImpl* m_Impl;
lua_State* m_LuaThread;
///
/// ˴Ƿػģʽ
///
bool m_IsDaemon;
std::string m_Name;
ThreadType m_Type;
uint m_SleepTime;
ThreadState m_State;
Mutex m_StateMutex;
///
/// ͬصź
///
Semaphore m_SemPause;
Semaphore m_SemResume;
Semaphore m_SemStop;
///
/// С
///
std::queue<Task*> m_TaskQueue;
Mutex m_TaskQueueMutex;
///
/// ӳģʽʹ
///
std::queue<Task*> m_FinishedTasks;
Mutex m_FinishedMutex;
///
/// ģʽʹãصʹõlua߳
///
lua_State* m_CallbackThread;
Luax::LuaxMemberRef m_CallbackThreadRef;
};
///
/// ̵߳ľʵ֣ûģһֲԣ
/// 1: win32
/// 2: posix
/// 3: SDL
/// 4: std::thread
///
ASURA_ABSTRACT class ThreadImpl
{
public:
ThreadImpl() {};
virtual ~ThreadImpl() {};
virtual bool Start(Threadable* thread, uint32 stacksize = 0) = 0;
virtual void Join() = 0;
virtual void Kill() = 0;
virtual void Sleep(uint ms) = 0;
virtual bool IsRunning() = 0;
virtual bool IsCurrent() = 0;
};
namespace_end
namespace_end
#endif
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