acl/lib_fiber/cpp/include/fiber/fiber.hpp

#pragma once
#include <stddef.h>

struct ACL_FIBER;

namespace acl {

/**
 * Э<EFBFBD><EFBFBD><EFBFBD>ඨ<EFBFBD>壬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳в<EFBFBD>ʵ<EFBFBD>ִ<EFBFBD><EFBFBD>鷽<EFBFBD><EFBFBD>
 */
class fiber
{
public:
	/**
	 * <EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>
	 * @param running {bool} <EFBFBD><EFBFBD>Ϊ true ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>ǰЭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѣ<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACL_FIBER <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󶨣<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD> start <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>; <EFBFBD><EFBFBD>Ϊ false ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> start <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>
	 */
	fiber(bool running = false);
	virtual ~fiber(void);

	/**
	 * <EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> running Ϊ false ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * Э<EFBFBD>̣<EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD> run <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> running Ϊ true ʱ<EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> start <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param stack_size {size_t} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD>С
	 */
	void start(size_t stack_size = 320000);

	/**
	 * <EFBFBD>ڱ<EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD>֪ͨ<EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD>
	 * @return {bool} <EFBFBD><EFBFBD><EFBFBD><EFBFBD> false <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD>˳<EFBFBD>
	 */
	bool kill(void);

	/**
	 * <EFBFBD>жϵ<EFBFBD>ǰЭ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>֪ͨ<EFBFBD>˳<EFBFBD>
	 * @return {bool} <EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>֪ͨ<EFBFBD>˳<EFBFBD>
	 */
	bool killed(void) const;

	/**
	 * <EFBFBD>жϵ<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>֪ͨ<EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> killed <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
	 * killed <EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> acl::fiber <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD>Ҹ<EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>
	 * Ҳ<EFBFBD>п<EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>𣬶<EFBFBD> self_killed <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ acl::fiber <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ
	 * <EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Э<EFBFBD><EFBFBD>
	 * @return {bool}
	 */
	static bool self_killed(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ID <EFBFBD><EFBFBD>
	 * @return {unsigned int}
	 */
	unsigned int get_id(void) const;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ID <EFBFBD><EFBFBD>
	 * @return {unsigned int}
	 */
	static unsigned int self(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰЭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD>ϵͳ API <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * return {int}
	 */
	int get_errno(void) const;

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰЭ<EFBFBD>̵Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param errnum {int}
	 */
	void set_errno(int errnum);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĵ<EFBFBD><EFBFBD>ȹ<EFBFBD><EFBFBD><EFBFBD>
	 */
	static void schedule(void);

	/**
	 * <EFBFBD>жϵ<EFBFBD>ǰ<EFBFBD>߳<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD>״̬
	 * @return {bool}
	 */
	static bool scheduled(void);

	/**
	 *  ֹͣЭ<EFBFBD>̵<EFBFBD><EFBFBD>ȹ<EFBFBD><EFBFBD><EFBFBD>
	 */
	static void schedule_stop(void);

public:
	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Э<EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>) <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	static void yield(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰЭ<EFBFBD>̣<EFBFBD>ִ<EFBFBD>еȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>
	 */
	static void switch_to_next(void);

	/**
	 * <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param f {fiber&}
	 */
	static void ready(fiber& f);

	/**
	 * ʹ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param milliseconds {unsigned int} ָ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ߵĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {unsigned int} <EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߺ<EFBFBD><EFBFBD>ٴα<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѻ<EFBFBD>ʣ<EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	static unsigned int delay(unsigned int milliseconds);

	/**
	 * <EFBFBD>߳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰ<EFBFBD>߳<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>Ҫ hook ϵͳ API<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ȱʡ
	 * <EFBFBD><EFBFBD> hook ϵͳ API
	 * @param on {bool}
	 */
	static void hook_api(bool on);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {int}
	 */
	static int  get_sys_errno(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ǰϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param errnum {int}
	 */
	static void set_sys_errno(int errnum);

public:
	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD> C <EFBFBD><EFBFBD><EFBFBD>Ե<EFBFBD>Э<EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD>
	 * @return {ACL_FIBER* }
	 */
	ACL_FIBER* get_fiber(void) const;

protected:
	/**
	 * <EFBFBD>麯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> start <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>̺󣬱<EFBFBD>
	 * <EFBFBD>麯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᱻ<EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD>Ӷ<EFBFBD>֪ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD>еIJ<EFBFBD><EFBFBD><EFBFBD>
	 * running Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD> start <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>鷽<EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>ᱻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual void run(void);

private:
	ACL_FIBER* f_;

	static void fiber_callback(ACL_FIBER* f, void* ctx);
};

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
class fiber_timer
{
public:
	fiber_timer(void);
	virtual ~fiber_timer(void) {}

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>Э<EFBFBD>̶<EFBFBD>ʱ<EFBFBD><EFBFBD>
	 * @param milliseconds {unsigned int} <EFBFBD><EFBFBD><EFBFBD>뼶ʱ<EFBFBD><EFBFBD>
	 * @param stack_size {size_t} Э<EFBFBD>̵<EFBFBD>ջ<EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD>С
	 */
	void start(unsigned int milliseconds, size_t stack_size = 320000);

protected:
	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ָô<EFBFBD><EFBFBD>鷽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual void run(void) = 0;

private:
	ACL_FIBER* f_;

	static void timer_callback(ACL_FIBER* f, void* ctx);
};

/**
 * <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>
 */
template <typename T>
class fiber_trigger : public fiber
{
public:
	fiber_trigger(timer_trigger<T>& timer)
	: delay_(100)
	, stop_(false)
	, timer_(timer)
	{
	}

	virtual ~fiber_trigger(void) {}

	void add(T* o)
	{
		mbox_.push(o);
	}

	void del(T* o)
	{
		timer_.del(o);
	}

	timer_trigger<T>& get_trigger(void)
	{
		return timer_;
	}

	// @override
	void run(void)
	{
		while (!stop_) {
			T* o = mbox_.pop(delay_);
			if (o)
				timer_.add(o);

			long long next = timer_.trigger();
			long long curr = get_curr_stamp();
			if (next == -1)
				delay_ = 100;
			else {
				delay_ = next - curr;
				if (delay_ <= 0)
					delay_ = 1;
			}
		}
	}

private:
	long long delay_;
	bool stop_;

	timer_trigger<T>& timer_;
	mbox<T> mbox_;
};

} // namespace acl

#if defined(__GNUC__) && (__GNUC__ > 6 ||(__GNUC__ == 6 && __GNUC_MINOR__ >= 0))
# ifndef   ACL_USE_CPP11
#  define  ACL_USE_CPP11
# endif
#endif

#ifdef	ACL_USE_CPP11

#include <functional>

namespace acl
{

class go_fiber
{
public:
	go_fiber(void) {}
	go_fiber(size_t stack_size) : stack_size_(stack_size) {}

	void operator=(std::function<void()> fn);

private:
	size_t stack_size_ = 320000;
};

} // namespace acl

#define	go		acl::go_fiber()=
#define	go_stack(size)	acl::go_fiber(size)=

/**
 * static void fiber1(void)
 * {
 * 	printf("fiber: %d\r\n", acl::fiber::self());
 * }
 *
 * static void fiber2(acl::string& buf)
 * {
 * 	printf("in fiber: %d, buf: %s\r\n", acl::fiber::self(), buf.c_str());
 * 	buf = "world";
 * }
 *
 * static void fiber3(const acl::string& buf)
 * {
 * 	printf("in fiber: %d, buf: %s\r\n", acl::fiber::self(), buf.c_str());
 * }
 *
 * static test(void)
 * {
 * 	go fiber1;
 * 	
 * 	acl::string buf("hello");
 *
 * 	go[&] {
 * 		fiber2(buf);
 * 	};
 * 	
 * 	go[=] {
 * 		fiber3(buf);
 * 	};
 * 
 * 	go[&] {
 * 		fiber3(buf);
 * 	};
 * }
 */
#endif