acl/lib_acl_cpp/include/acl_cpp/stream/server_socket.hpp

#pragma once
#include "../acl_cpp_define.hpp"
#include "../stdlib/string.hpp"
#include "../stdlib/noncopyable.hpp"
#if defined(_WIN32) || defined(_WIN64)
#include <WinSock2.h>
#endif

#if __cplusplus >= 201103L
#include <memory>
#endif

namespace acl {

class socket_stream;

enum {
	OPEN_FLAG_NONE      = 0,
	OPEN_FLAG_NONBLOCK  = 1,	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
	OPEN_FLAG_REUSEPORT = (1 << 1),	// <20>˿ڸ<CBBF><DAB8>ã<EFBFBD>Ҫ<EFBFBD><D2AA> Linux3.0 <20><><EFBFBD><EFBFBD>
	OPEN_FLAG_FASTOPEN  = (1 << 2),	// <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD> Fast open<65><6E>ʵ<EFBFBD><CAB5><EFBFBD>׶Σ<D7B6>
	OPEN_FLAG_EXCLUSIVE = (1 << 3),	// <20>Ƿ<EFBFBD><C7B7><EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>õ<EFBFBD>ַ
};

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼<EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿ<EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD>տͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD>
 */
class ACL_CPP_API server_socket : public noncopyable {
public:
#if 0
	/**
	 * <EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>෽<EFBFBD><EFBFBD> open <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
	 * @param backlog {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿڶ<EFBFBD><EFBFBD>г<EFBFBD><EFBFBD><EFBFBD>
	 * @param block {bool} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
	 */
	server_socket(int backlog, bool block);
#endif

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD>
	 * @param flag {unsigned} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>μ<EFBFBD> OPEN_FLAG_XXX
	 * @param backlog {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿڶ<EFBFBD><EFBFBD>г<EFBFBD><EFBFBD><EFBFBD>
	 */
	server_socket(unsigned flag, int backlog);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD>ٵ<EFBFBD><EFBFBD><EFBFBD> open <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param sstream {ACL_VSTREAM*} <EFBFBD>ⲿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷţ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>йرոü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	server_socket(ACL_VSTREAM* sstream);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD>ٵ<EFBFBD><EFBFBD><EFBFBD> open <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param fd {ACL_SOCKET} <EFBFBD>ⲿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷţ<EFBFBD>
	 *  <EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>йرոü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
#if defined(_WIN32) || defined(_WIN64)
	server_socket(SOCKET fd);
#else
	server_socket(int fd);
#endif

	server_socket(void);
	~server_socket(void);

	/**
	 * <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD>ַ
	 * @param addr {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽΪ<EFBFBD><EFBFBD>
	 *  ip:port<EFBFBD><EFBFBD><EFBFBD><EFBFBD> unix <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿڣ<EFBFBD><EFBFBD><EFBFBD>ʽΪ<EFBFBD><EFBFBD>/path/xxx<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  Linux ƽ̨<EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿڵ<EFBFBD>ַΪ<EFBFBD><EFBFBD>@xxx <EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸΪ @ <EFBFBD><EFBFBD>
	 *  <EFBFBD>ڲ<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Linux <EFBFBD>µij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽<EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><EFBFBD>abstract unix socket<EFBFBD><EFBFBD>
	 * @return {bool} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɹ<EFBFBD>
	 */
	bool open(const char* addr);

	/**
	 * <EFBFBD>жϵ<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿ<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return {bool}
	 */
	bool opened(void) const;

	/**
	 * <EFBFBD>ر<EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD>򿪵ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿ<EFBFBD>
	 * @return {bool} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD>
	 */
	bool close(void);

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿڴӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD>
	 * @return {SOCKET} <EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD>
	 */
#if defined(_WIN32) || defined(_WIN64)
	SOCKET unbind(void);
#else
	int unbind(void);
#endif

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>տͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param timeout {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ >= 0 ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD>ʱ<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>տͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD>ÿͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD>򷵻<EFBFBD> NULL
	 * @param etimed {bool*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> NULL ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>¸ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  NULL<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ true
	 * @return {socket_stream*} <EFBFBD><EFBFBD><EFBFBD>ؿձ<EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܻ<EFBFBD><EFBFBD><EFBFBD>ʱ, <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 *  <EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> delete <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
	 */
	socket_stream* accept(int timeout = -1, bool* etimed = NULL);

#if __cplusplus >= 201103L
	// ʹ<><CAB9> c++11 shared_ptr <20><>ʽ<EFBFBD><CABD><EFBFBD>ÿͻ<C3BF><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	using shared_stream = std::shared_ptr<socket_stream>;

	shared_stream shared_accept(int timeout = -1, bool* etimed = NULL) {
		shared_stream ss(accept(timeout, etimed));
		return ss;
	}
#endif

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ
	 * @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ǿ<EFBFBD>ָ<EFBFBD><EFBFBD>
	 */
	const char* get_addr(void) const {
		return addr_.c_str();
	}

	/**
	 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽ӿ<EFBFBD>
	 * @return {int}
	 */
#if defined(_WIN32) || defined(_WIN64)
	SOCKET sock_handle(void) const {
#else
	int sock_handle(void) const {
#endif
		return fd_;
	}

	/**
	 * <EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD>׽<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>ӳٽ<EFBFBD><EFBFBD>չ<EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>Ž<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷ<EFBFBD><EFBFBD><EFBFBD>
	 * <EFBFBD><EFBFBD>Ӧ<EFBFBD>ã<EFBFBD>Ŀǰ<EFBFBD>ù<EFBFBD><EFBFBD>ܽ<EFBFBD>֧<EFBFBD><EFBFBD> Linux
	 * @param timeout {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ涨<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
	 *  Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷ<EFBFBD><EFBFBD>ظ<EFBFBD>Ӧ<EFBFBD><EFBFBD>
	 */
	void set_tcp_defer_accept(int timeout);

private:
	int      backlog_;
	unsigned open_flag_;
	bool     unix_sock_;
	string   addr_;

#if defined(_WIN32) || defined(_WIN64)
	SOCKET fd_;
	SOCKET fd_local_;
#else
	int   fd_;
	int   fd_local_;
#endif
};

} // namespace acl