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简介

RFDMap用于将socket分配映射成连续的文件描述符，同时管理回收的文件描述符，因为ae构架中管理fd与对应事件处理器使用的是数据，fd作为数组下标

结构

其中state为iocpSockState
ov_read：iocp中处理连接 的

接口转换

与原生socket相关的接口转成与rfd操作的。其是通过Win32_FDSockMap`来转换的

class Win32_FDSockMap {
public:static Win32_FDSockMap& getInstance() {static Win32_FDSockMap instance; // Instantiated on first use. Guaranteed to be destroyed.return instance;}private:Win32_FDSockMap() {InitWinsock();accept = FDAPI_accept;access = FDAPI_access;bind = FDAPI_bind;connect = FDAPI_connect;fcntl = FDAPI_fcntl;freeaddrinfo = FDAPI_freeaddrinfo;fsync = FDAPI_fsync;ftruncate = FDAPI_ftruncate;getaddrinfo = FDAPI_getaddrinfo;getsockopt = FDAPI_getsockopt;getpeername = FDAPI_getpeername;getsockname = FDAPI_getsockname;htonl = FDAPI_htonl;htons = FDAPI_htons;inet_ntop = FDAPI_inet_ntop;inet_pton = FDAPI_inet_pton;isatty = FDAPI_isatty;listen = FDAPI_listen;lseek64 = FDAPI_lseek64;ntohl = FDAPI_ntohl;ntohs = FDAPI_ntohs;open = FDAPI_open;pipe = FDAPI_pipe;poll = FDAPI_poll;read = FDAPI_read;select = FDAPI_select;setsockopt = FDAPI_setsockopt;socket = FDAPI_socket;write = FDAPI_write;}~Win32_FDSockMap() {CleanupWinsock();}Win32_FDSockMap(Win32_FDSockMap const&);    // Don't implement to guarantee singleton semanticsvoid operator=(Win32_FDSockMap const&);     // Don't implement to guarantee singleton semantics
};

通过全局单例完成 Win32_FDSockMap 的初始化

static class Win32_FDSockMap& init = Win32_FDSockMap::getInstance();