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#ifndef __JIN_THREAD_H
#define __JIN_THREAD_H
#include "../modules.h"
#if JIN_MODULES_THREAD
#include <string>
#include <map>
#if JIN_THREAD_SDL
# include "SDL2/SDL_thread.h"
#elif JIN_THREAD_CPP
# include <thread>
# include <mutex>
# include <condition_variable>
#endif
namespace jin
{
namespace thread
{
/*
* ӢӢMutual exclusionд Mutexһڶ̱߳Уֹ߳ͬʱͬһԴ
* ȫֱждĻơĿͨƬһһٽcritical sectionɡٽ
* ָһԹԴзʵĴ룬һֻƻ㷨һ̡߳̿ӵжٽDz
* һӦûҪ˻ƵԴУꡢСжϴڶеĴ
* ݡͬ״̬ȵԴάЩԴͬһºǺѵģΪһ߳̿κһʱ̱ͣ
* ߣָѣ
*/
class Mutex;
class Conditional;
/*
* Thread:demand Receive a message from a thread. Wait for the message to exist before returning.
* Thread:getName Get the name of a thread.
* Thread:kill Forcefully terminate the thread.
* Thread:peek Receive a message from a thread, but leave it in the message box.
* Thread:receive Receive a message from a thread.
* Thread:send Send a message.
* Thread:set Set a value.
* Thread:start Starts the thread.
* Thread:wait Wait for a thread to finish.
*/
class Thread
{
public:
union Value
{
enum
{
INTEGER,
REAL,
BOOL,
STRING,
POINTER
} type;
int integer;
float real;
bool boolean;
const char* cstring;
void* pointer;
Value() {};
Value(int i) : integer(i), type(INTEGER){};
Value(float r) : real(r), type(REAL) {};
Value(bool b) : boolean(b), type(BOOL) {};
Value(const char* cstr) : cstring(cstr), type(STRING) {};
Value(void* p) : pointer(p), type(POINTER) {};
};
private:
class ThreadData
{
public:
ThreadData(Mutex*, Conditional*);
~ThreadData();
bool exist(const std::string& name);
void set(std::string name, Value value);
Value get(std::string name);
void remove(std::string name);
Conditional* condition;
Mutex* mutex;
private:
std::map<std::string, Value> share; // threads shared value
};
public:
typedef int(ThreadRunner)(void* /*ThreadData*/);
Thread(const std::string name, ThreadRunner threadfuncs);
~Thread();
bool start();
void wait();
void send(std::string name, Value value);
bool receive(std::string name);
Value fetch(std::string name);
Value demand(std::string name);
const char* getName();
bool isRunning();
//void kill();
//Value peek();
private:
void lock();
void unlock();
#if JIN_THREAD_SDL
SDL_Thread* handle; // SDL thread
#elif JIN_THREAD_CPP
std::thread* handle; // cpp thread
#endif
Mutex* mutex; // mutex variable
Conditional* condition; // condition variable
ThreadRunner* threadRunner; // thread function
ThreadData* common; // threads common data
const std::string name; // thread name
bool running; // running
};
} // thread
} // jin
#endif // JIN_MODULES_THREAD
#endif // __JIN_THREAD_H
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