USocket UE4TCP UDP接口
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// USocket.cpp : 定义控制台应用程序的入口点。////#define printf_s printf#include "stdafx.h"#include "USocket.h"#include <stdio.h>#include <list>OnReceive* OnTCPReceive;OnServerAccept* OnServeAccept;OnReceiveForm* OnServerReceive;OnReceiveForm* OnUDPReceive;void UDPReceiveThread(SOCKET* udpclient);void TCPReceiveThread(SOCKET* client);void ServerReceiveThread(PeerSocket* peer);void ServerAcceptThread(SOCKET* server);std::list<SOCKET*>* tcpclients;std::list<SOCKET*>* udpclients;std::list<SOCKET*>* tcpservers;WSADATA wsaData;void Init(){ tcpclients = new std::list<SOCKET*>(); udpclients = new std::list<SOCKET*>(); tcpservers = new std::list<SOCKET*>(); int result = WSAStartup(MAKEWORD(2, 2), &wsaData); if (result)printf_s("Init error:%d\n", WSAGetLastError());}FILE* consolefile;void OpenConsole(){ AllocConsole(); freopen_s(&consolefile, "CONOUT$", "w+t", stdout); //consolefile = freopen("CONOUT$", "w+t", stdout);}void CloseConsole(){ fclose(consolefile); FreeConsole();}void Shutdown(){ WSACleanup();}SOCKET* CreateTCPClient(unsigned short port){ SOCKET* sockClient = new SOCKET(); *sockClient = socket(AF_INET, SOCK_STREAM, 0);int result = 0; sockaddr_in addrClient; int addrlen = sizeof(sockaddr); if (port) {//绑定自定义端口 addrClient.sin_family = AF_INET; addrClient.sin_addr.s_addr = inet_addr("127.0.0.1"); addrClient.sin_port = htons(port); result |= bind(*sockClient, (SOCKADDR*)&addrClient, sizeof(addrClient)); if (result)printf_s("CreateTCPClient error:%d\n", WSAGetLastError());result |= getsockname(*sockClient, (sockaddr*)&addrClient, &addrlen); if (result)printf_s("CreateTCPClient error:%d\n", WSAGetLastError()); printf_s("TCP指定端口:%s:%d\n", inet_ntoa(addrClient.sin_addr), ntohs(addrClient.sin_port)); } else { printf_s("TCP端口未指定\n"); }tcpclients->push_back(sockClient); return sockClient;}SOCKET* CreateTCPServer(unsigned short port){ SOCKET* sockServer = new SOCKET(); *sockServer = socket(AF_INET, SOCK_STREAM, 0);int result = 0; sockaddr_in addrServer; int addrlen = sizeof(sockaddr); if (port) {//绑定自定义端口 addrServer.sin_family = AF_INET; addrServer.sin_addr.s_addr = inet_addr("127.0.0.1"); addrServer.sin_port = htons(port); result |= bind(*sockServer, (SOCKADDR*)&addrServer, sizeof(addrServer)); if (result)printf_s("CreateTCPServer error:%d\n", WSAGetLastError());result |= getsockname(*sockServer, (sockaddr*)&addrServer, &addrlen); if (result)printf_s("CreateTCPServer error:%d\n", WSAGetLastError()); printf_s("指定端口:%s:%d\n", inet_ntoa(addrServer.sin_addr), ntohs(addrServer.sin_port)); } else { printf_s("服务端未分配端口\n"); }tcpservers->push_back(sockServer); return sockServer;}void ServerListenAccept(SOCKET* server, int maxconn){ int i = 0; int result = listen(*server, maxconn); if (result)printf_s("ServerListenAccept error:%d\n", WSAGetLastError());sockaddr_in addrClient; int addrlen; do { SOCKET client = accept(*server, 0, 0); if (client == INVALID_SOCKET) { printf_s("无效socket, error:%d\n", WSAGetLastError()); continue; } result |= getsockname(client, (sockaddr*)&addrClient, &addrlen); if (result)printf_s("ServerListenAccept error:%d\n", WSAGetLastError()); printf_s("连接客户端:%s:%d\n", inet_ntoa(addrClient.sin_addr), ntohs(addrClient.sin_port)); i += 1; } while (i < maxconn); printf_s("连接客户端数已经最大");}void ServerListenAcceptAsync(SOCKET* server, int maxconn){ int result = 0; result = listen(*server, maxconn); if (result)printf_s("ServerListenAcceptAsync error:%d\n", WSAGetLastError());DWORD threadID; HANDLE hThread = CreateThread(0, 0, (LPTHREAD_START_ROUTINE)ServerAcceptThread, server, 0, &threadID); printf_s("接受线程:%d, Thread ID:%d\n", hThread, threadID);}SOCKET* CreateUDPClient(unsigned short port){ SOCKET* sockClient = new SOCKET(); *sockClient = socket(AF_INET, SOCK_DGRAM, 0);int result = 0; sockaddr_in addrClient; int addrlen = sizeof(sockaddr); if (port) {//绑定自定义端口 addrClient.sin_family = AF_INET; addrClient.sin_addr.s_addr = inet_addr("127.0.0.1"); addrClient.sin_port = htons(port); result |= bind(*sockClient, (SOCKADDR*)&addrClient, sizeof(addrClient)); if (result)printf_s("CreateUDPClient error:%d\n", WSAGetLastError());result |= getsockname(*sockClient, (sockaddr*)&addrClient, &addrlen); if (result)printf_s("CreateUDPClient error:%d\n", WSAGetLastError()); printf_s("UDP指定端口:%s:%d\n", inet_ntoa(addrClient.sin_addr), ntohs(addrClient.sin_port)); } else { getsockname(*sockClient, (sockaddr*)&addrClient, &addrlen); printf_s("TCP端口未指定\n"); }udpclients->push_back(sockClient); return sockClient;}int SocketIONonBlocking(SOCKET* s, int mode){ u_long iMode = mode; int result = ioctlsocket(*s, FIONBIO, &iMode); if (result)printf_s("error:%d\n", WSAGetLastError()); return result;}int TCPConnectToServer(SOCKET* sockClient, char* IP, unsigned short port){ printf_s("参数 %s:%d\n", IP, port); int result = 0; SOCKADDR_IN addrServer; addrServer.sin_addr.S_un.S_addr = inet_addr(IP); addrServer.sin_family = AF_INET; addrServer.sin_port = htons(port); result |= connect(*sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR)); if (result)printf_s("TCPConnectToServer error:%d\n", WSAGetLastError());sockaddr_in addrClient; int addrlen = sizeof(sockaddr); result |= getsockname(*sockClient, (sockaddr*)&addrClient, &addrlen); if (result)printf_s("TCPConnectToServer error:%d\n", WSAGetLastError()); printf_s("TCP连接端口:%s:%d\n", inet_ntoa(addrClient.sin_addr), ntohs(addrClient.sin_port)); return result;//一直为0代表无错误}void SetTCPReceiveCallBack(OnReceive* func){ OnTCPReceive = func;}void SetUDPReceiveCallBack(OnReceiveForm* func){ OnUDPReceive = func;}void SetServerAcceptCallBack(OnServerAccept* func){ OnServeAccept = func;}void SetServerReceiveCallBack(OnReceiveForm* func){ OnServerReceive = func;}void UDPReadAsyncLoop(SOCKET* s){ DWORD threadID; HANDLE hThread = CreateThread(0, 0, (LPTHREAD_START_ROUTINE)UDPReceiveThread, s, 0, &threadID); printf_s("UDP接收线程:%d, Thread ID:%d\n", hThread, threadID);}void TCPReadAsyncLoop(SOCKET* s){ DWORD threadID; HANDLE hThread = CreateThread(0, 0, (LPTHREAD_START_ROUTINE)TCPReceiveThread, s, 0, &threadID); printf_s("TCP接收线程:%d, Thread ID:%d\n", hThread, threadID);}void ServerReadAsyncLoop(PeerSocket* peer){ DWORD threadID; HANDLE hThread = CreateThread(0, 0, (LPTHREAD_START_ROUTINE)ServerReceiveThread, peer, 0, &threadID); printf_s("Server接收线程:%d, Thread ID:%d\n", hThread, threadID);}SOCKET* IsTCPClient(SOCKET* s){ for (std::list<SOCKET*>::iterator itr = tcpclients->begin(); itr != tcpclients->end(); itr++) if (*itr == s) return s; return NULL;}SOCKET* IsUDPClient(SOCKET* s){ for (std::list<SOCKET*>::iterator itr = udpclients->begin(); itr != udpclients->end(); itr++) if (*itr == s) return s; return NULL;}SOCKET* IsTCPServer(SOCKET* s){ for (std::list<SOCKET*>::iterator itr = tcpservers->begin(); itr != tcpservers->end(); itr++) if (*itr == s) return s; return NULL;}int TCPReceive(SOCKET* client, char* data,int* datasize){ int result = 0; if (IsTCPClient(client)) { int len = recv(*client, data, *datasize, 0);//非阻塞模式，不取return的值 *datasize = len; result = WSAGetLastError(); } else printf_s("It's not USocket TCPClient\n"); return result;}int UDPReceive(SOCKET* client, char* data, int* datasize, char* outfrom, int* port){ int result = 0; sockaddr_in SenderAddr; int addrlen = sizeof(sockaddr); if (IsUDPClient(client)) { int len = recvfrom(*client, data, *datasize, 0, (sockaddr*)&SenderAddr, &addrlen); *datasize = len; result = WSAGetLastError(); outfrom = inet_ntoa(SenderAddr.sin_addr); *port = ntohs(SenderAddr.sin_port); } else printf_s("It's not USocket TCPClient\n"); return 0;}int ServerReceive(PeerSocket* peer, char* data, int* datasize){ int result = 0; if (IsTCPServer(peer->server)) { int len = recv(*peer->tcp, data, *datasize, 0); *datasize = len; result = WSAGetLastError(); } else printf_s("It's not USocket TCPClient\n"); return 0;}int TCPSendToServer(SOCKET* client, char* data, int len){ int result = 0; if (IsTCPClient(client)) { result = send(*client, data, len, 0); if (result)printf_s("TCPSendToServer error:%d\n", WSAGetLastError()); } else printf_s("It's not USocket TCPClient\n"); return result;}int ServerSend(PeerSocket* peer, char* data, int len){ int result = 0; if (IsTCPServer(peer->server)) { result = send(*peer->tcp, data, len, 0); if (result)printf_s("ServerSend error:%d\n", WSAGetLastError()); } else printf_s("It's not USocket TCPServer\n"); return result;}int UDPSendTo(SOCKET* client, char* data, int len, char* IP, int port){ int result = 0; if (IsUDPClient(client)) { sockaddr_in RecvAddr; RecvAddr.sin_family = AF_INET; RecvAddr.sin_addr.s_addr = inet_addr(IP); RecvAddr.sin_port = htons(port); result = sendto(*client, data, len, 0, (SOCKADDR*)&RecvAddr, sizeof(RecvAddr)); if (result)printf_s("UDPSendTo error:%d\n", WSAGetLastError()); } else printf_s("It's not USocket UDPClient\n"); return result;}int Close(SOCKET* s){ if (IsUDPClient(s)) udpclients->remove(s); else if (IsTCPClient(s)) tcpclients->remove(s); else if (IsTCPServer(s)) tcpservers->remove(s); int result = closesocket(*s); if (result)printf_s("error:%d\n", WSAGetLastError()); return result;}void UDPReceiveThread(SOCKET* socket){ char data[4096]; do { sockaddr_in SenderAddr; int addrlen = sizeof(sockaddr); memset(data, 0, 4096); int len = recvfrom(*socket, data, 4096, 0, (sockaddr*)&SenderAddr, &addrlen); //阻塞模式 len是字节数量 //非阻塞模式 len是WSAEWOULDBLOCK(10035) int err = WSAGetLastError(); if (err)return; if (len <= 0)return; char IPAddr[22]; sprintf_s(IPAddr, "%s:%d", inet_ntoa(SenderAddr.sin_addr), ntohs(SenderAddr.sin_port)); if (OnUDPReceive) { OnUDPReceive(socket, data, len, IPAddr, strnlen_s(IPAddr, 22)); } else {// printf_s("UDP接收未设定回调函数，*data:%p\n", data); } } while (true);}void TCPReceiveThread(SOCKET* socket){ char data[4096]; do { memset(data, 0, 4096); int len = recv(*socket, data, 4096, 0); int err = WSAGetLastError(); if (err)return; if (len <= 0)return; if (OnTCPReceive) { OnTCPReceive(socket, data, len); } else {// printf_s("TCP接收未设定回调函数，*data:%p\n", data); } } while (true);}void ServerAcceptThread(SOCKET* server){ do { sockaddr_in addrClient; int addrlen = sizeof(sockaddr); SOCKET* client = new SOCKET(); *client = accept(*server, 0, 0); getpeername(*client, (sockaddr*)&addrClient, &addrlen); printf_s("接入客户端:%s:%d\n", inet_ntoa(addrClient.sin_addr), ntohs(addrClient.sin_port)); if (OnServeAccept) OnServeAccept(server, client); } while (true);}void ServerReceiveThread(PeerSocket* peer){ char data[4096]; do { sockaddr_in SenderAddr; int addrlen = sizeof(sockaddr); memset(data, 0, 4096); int len = recv(*peer->tcp, data, 4096, 0); int err = WSAGetLastError(); if (err)return; if (len <= 0)return; char IPAddr[22]; getpeername(*peer->tcp, (sockaddr*)&SenderAddr, &addrlen); sprintf_s(IPAddr, "%s:%d", inet_ntoa(SenderAddr.sin_addr), ntohs(SenderAddr.sin_port)); if (OnServerReceive) { OnServerReceive(peer->server, data, len, IPAddr, strnlen_s(IPAddr, 22)); } else {// printf_s("Server接收未设定回调函数，*data:%p\n", data); } } while (true); free(peer);}//here is the code for testing//here is the code for testing//here is the code for testing//here is the code for testing//here is the code for testingstd::list<PeerSocket*> peers;void ServerAccept(SOCKET* server, SOCKET* tcp){ PeerSocket *peer = new PeerSocket(); peers.push_back(peer); peer->server = server; peer->tcp = tcp;sockaddr_in SenderAddr; int addrlen = sizeof(sockaddr); getpeername(*peer->tcp, (sockaddr*)&SenderAddr, &addrlen); printf_s("开始从客户端%s:%d接收数据\n", inet_ntoa(SenderAddr.sin_addr), ntohs(SenderAddr.sin_port)); ServerReadAsyncLoop(peer);}void ReceiveFrom(SOCKET* s, char* data, int len, char* IPAddr, int size){ sockaddr_in name; int addrlen = sizeof(sockaddr); getsockname(*s, (sockaddr*)&name, &addrlen); printf_s("%s:%d收到数据 来自%s, 数据:%s, 长度:%d\n", inet_ntoa(name.sin_addr), ntohs(name.sin_port), IPAddr, data, len);}void Receive(SOCKET* s, char* data, int len){ sockaddr_in name; int addrlen = sizeof(sockaddr); getsockname(*s, (sockaddr*)&name, &addrlen); printf_s("%s:%d收到数据 数据:%s, 长度:%d\n", inet_ntoa(name.sin_addr), ntohs(name.sin_port), data, len);}int main(){ Init();//nonblocking mode int type = 0; printf_s("选择类型1.TCP Client\t2.TCP Server\t3.UDP Client\n"); scanf_s("%d",&type); int port = 0; printf_s("输入要绑定的端口\n"); scanf_s("%d", &port); switch (type) { case 1: { SOCKET* tcp = CreateTCPClient((unsigned short)port); char ip[16] = {0}; int tport = 0; printf_s("输入目标IP 目标端口\n"); scanf_s("%s%d", ip, 16, &tport); TCPConnectToServer(tcp, ip, tport); SetTCPReceiveCallBack(Receive); TCPReadAsyncLoop(tcp);for (;;) { char data[256]; printf_s("输入发送的内容\n"); gets_s(data, 256); TCPSendToServer(tcp, data, strnlen_s(data, 256)); }break; } case 2: { SOCKET* server = CreateTCPServer((unsigned short)port); SetServerAcceptCallBack(ServerAccept); SetServerReceiveCallBack(ReceiveFrom); ServerListenAcceptAsync(server, 16); for (;;) { char data[256]; printf_s("输入要向所有客户端发送的内容\n"); gets_s(data, 256); for (std::list<PeerSocket*>::iterator itr = peers.begin(); itr != peers.end(); itr++) { ServerSend(*itr, data, strnlen_s(data, 256)); } } break; } case 3: { SOCKET* udp = CreateUDPClient((unsigned short)port); SetUDPReceiveCallBack(ReceiveFrom); UDPReadAsyncLoop(udp); for (;;) { char ip[16] = { 0 }; int tport = 0; printf_s("输入目标IP 目标端口\n"); scanf_s("%s%d", ip,16 &tport); char data[256]; printf_s("输入发送的内容\n"); gets_s(data, 256); UDPSendTo(udp, data, strnlen_s(data, 256),ip,tport); } break; } default: break; } return 0;}
编译为USocket.DLL
.h头文件暴露API接口
#pragma once#define DLL#ifdef DLL#include <WinSock2.h>#define API __declspec(dllexport)#else#define SOCKET void#define API __declspec(dllimport)#endiftypedef struct{SOCKET* server;SOCKET* tcp;}*LPPeerSocket, PeerSocket;typedef void OnReceive(SOCKET*, char*, int);typedef void OnReceiveForm(SOCKET*, char*, int, char*, int);typedef void OnServerAccept(SOCKET*, SOCKET*);extern "C"{API void Init();API void OpenConsole();API void CloseConsole();API void Shutdown();API SOCKET* CreateTCPClient(unsigned short port);API SOCKET* CreateTCPServer(unsigned short port);API void ServerListenAccept(SOCKET* server, int maxconn);API void ServerListenAcceptAsync(SOCKET* server, int maxconn);API SOCKET* CreateUDPClient(unsigned short port);API int SocketIONonBlocking(SOCKET* s, int mode);API int TCPConnectToServer(SOCKET* sockClient, char* IP, unsigned short port);API void SetTCPReceiveCallBack(OnReceive* func);API void SetUDPReceiveCallBack(OnReceiveForm* func);API void SetServerAcceptCallBack(OnServerAccept* func);API void SetServerReceiveCallBack(OnReceiveForm* func);API void UDPReadAsyncLoop(SOCKET* s);API void TCPReadAsyncLoop(SOCKET* s);API void ServerReadAsyncLoop(PeerSocket* peer);API int TCPReceive(SOCKET* client, char* data, int* datasize);API int UDPReceive(SOCKET* client, char* data, int* datasize, char* outfrom, int* port);API int ServerReceive(PeerSocket* peer, char* data, int* datasize);API int TCPSendToServer(SOCKET* client, char* data, int len);API int ServerSend(PeerSocket* peer, char* data, int len);API int UDPSendTo(SOCKET* client, char* data, int len, char* IP, int port);API int Close(SOCKET* s);}LIBUSOCKET.h 为UE4接入API，继承于蓝图函数库
// Fill out your copyright notice in the Description page of Project Settings.#pragma once#define SOCKET void#include "Kismet/BlueprintFunctionLibrary.h"#include "LibUSocket.generated.h"typedef struct{SOCKET* server;SOCKET* tcp;}*LPPeerSocket, PeerSocket;typedef void OnReceive(void*, char*, int);typedef void OnReceiveForm(void*, char*, int, char*, int);typedef void OnServerAccept(void*, void*);/** * */UCLASS()class LEARN_API ULibUSocket : public UBlueprintFunctionLibrary{public:static void Init();static void OpenConsole();static void CloseConsole();static void Shutdown();static SOCKET* CreateTCPClient(int port);static SOCKET* CreateTCPServer(int);static void ServerListenAccept(SOCKET*, int);static void ServerListenAcceptAsync(SOCKET*, int);static SOCKET* CreateUDPClient(int);static int SocketIONonBlocking(SOCKET*, int);static int TCPConnectToServer(SOCKET*, char*, int);static void SetTCPReceiveCallBack(OnReceive*);static void SetUDPReceiveCallBack(OnReceiveForm*);static void SetServerAcceptCallBack(OnServerAccept*);static void SetServerReceiveCallBack(OnReceiveForm*);static void UDPReadAsyncLoop(SOCKET*);static void TCPReadAsyncLoop(SOCKET*);static void ServerReadAsyncLoop(PeerSocket*);static int TCPReceive(SOCKET*, char*, int*);static int UDPReceive(SOCKET*, char*, int*, char*, int*);static int ServerReceive(PeerSocket*, char*, int*);static void TCPSendToServer(SOCKET*, char*, int);static void ServerSend(PeerSocket*, char*, int);static void UDPSendTo(SOCKET*, char*, int, char*, int);static void Close(SOCKET*);GENERATED_BODY()//下面的写的是虚幻的规范。SOCKET* char* int* 都是不允许的};
LibUSocket.cpp 虚幻DLL调用实现
// Fill out your copyright notice in the Description page of Project Settings.#include "Learn.h"#include "LibUSocket.h"const TCHAR* DLLNAME = L"USocket.dll";typedef void fInit();typedef void fOpenConsole();typedef void fCloseConsole();typedef void fShutdown();typedef SOCKET* fCreateTCPClient(unsigned short port);typedef SOCKET* fCreateTCPServer(unsigned short port);typedef void fServerListenAccept(SOCKET* server, int maxconn);typedef void fServerListenAcceptAsync(SOCKET* server, int maxconn);typedef SOCKET* fCreateUDPClient(unsigned short port);typedef int fSocketIONonBlocking(SOCKET* s, int mode);typedef int fTCPConnectToServer(SOCKET* sockClient, char* IP, unsigned short port);typedef void fSetTCPReceiveCallBack(OnReceive* func);typedef void fSetUDPReceiveCallBack(OnReceiveForm* func);typedef void fSetServerAcceptCallBack(OnServerAccept* func);typedef void fSetServerReceiveCallBack(OnReceiveForm* func);typedef void fUDPReadAsyncLoop(SOCKET* s);typedef void fTCPReadAsyncLoop(SOCKET* s);typedef void fServerReadAsyncLoop(PeerSocket* peer);typedef int fTCPReceive(SOCKET* client, char* data, int* datasize);typedef int fUDPReceive(SOCKET* client, char* data, int* datasize, char* outfrom, int* port);typedef int fServerReceive(PeerSocket* peer, char* data, int* datasize);typedef int fTCPSendToServer(SOCKET* client, char* data, int len);typedef int fServerSend(PeerSocket* peer, char* data, int len);typedef int fUDPSendTo(SOCKET* client, char* data, int len, char* IP, int port);typedef int fClose(SOCKET* s);void ULibUSocket::Init(){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "Init";fInit* func = (fInit*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func();}}void ULibUSocket::OpenConsole(){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "OpenConsole";fOpenConsole* func = (fOpenConsole*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func();}}void ULibUSocket::CloseConsole(){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "CloseConsole";fCloseConsole* func = (fCloseConsole*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func();}}void ULibUSocket::Shutdown(){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "Shutdown";fShutdown* func = (fShutdown*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func();}}SOCKET * ULibUSocket::CreateTCPClient(int port){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return nullptr;FString procName = "CreateTCPClient";fCreateTCPClient* func = (fCreateTCPClient*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(port);}return nullptr;}SOCKET * ULibUSocket::CreateTCPServer(int port){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return nullptr;FString procName = "CreateTCPServer";fCreateTCPServer* func = (fCreateTCPServer*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(port);}return nullptr;}void ULibUSocket::ServerListenAccept(SOCKET* server, int maxconn){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "ServerListenAccept";fServerListenAccept* func = (fServerListenAccept*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(server, maxconn);}}void ULibUSocket::ServerListenAcceptAsync(SOCKET* server, int maxconn){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "ServerListenAcceptAsync";fServerListenAcceptAsync* func = (fServerListenAcceptAsync*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(server, maxconn);}}SOCKET * ULibUSocket::CreateUDPClient(int port){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return nullptr;FString procName = "CreateUDPClient";fCreateUDPClient* func = (fCreateUDPClient*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(port);}return nullptr;}int ULibUSocket::SocketIONonBlocking(SOCKET* socket, int mode){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return 0;FString procName = "SocketIONonBlocking";fSocketIONonBlocking* func = (fSocketIONonBlocking*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(socket, mode);}return 0;}int ULibUSocket::TCPConnectToServer(SOCKET* socket, char* IP, int port){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return 0;FString procName = "TCPConnectToServer";fTCPConnectToServer* func = (fTCPConnectToServer*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(socket, IP, port);}return 0;}void ULibUSocket::SetTCPReceiveCallBack(OnReceive *f){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "SetTCPReceiveCallBack";fSetTCPReceiveCallBack* func = (fSetTCPReceiveCallBack*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(f);}}void ULibUSocket::SetUDPReceiveCallBack(OnReceiveForm *f){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return ;FString procName = "SetUDPReceiveCallBack";fSetUDPReceiveCallBack* func = (fSetUDPReceiveCallBack*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(f);}}void ULibUSocket::SetServerAcceptCallBack(OnServerAccept *f){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "SetServerAcceptCallBack";fSetServerAcceptCallBack* func = (fSetServerAcceptCallBack*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(f);}}void ULibUSocket::SetServerReceiveCallBack(OnReceiveForm *f){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "SetServerReceiveCallBack";fSetServerReceiveCallBack* func = (fSetServerReceiveCallBack*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(f);}}void ULibUSocket::UDPReadAsyncLoop(SOCKET* f){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "UDPReadAsyncLoop";fUDPReadAsyncLoop* func = (fUDPReadAsyncLoop*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(f);}}void ULibUSocket::TCPReadAsyncLoop(SOCKET* socket){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "TCPReadAsyncLoop";fTCPReadAsyncLoop* func = (fTCPReadAsyncLoop*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(socket);}}void ULibUSocket::ServerReadAsyncLoop(PeerSocket* peer){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "ServerReadAsyncLoop";fServerReadAsyncLoop* func = (fServerReadAsyncLoop*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(peer);}}int ULibUSocket::TCPReceive(SOCKET* socket, char* data, int* size){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return 0;FString procName = "TCPReceive";fTCPReceive* func = (fTCPReceive*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(socket, data, size);}return 0;}int ULibUSocket::UDPReceive(SOCKET* socket, char* data, int* size, char* IP, int* port){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return 0;FString procName = "UDPReceive";fUDPReceive* func = (fUDPReceive*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(socket, data, size, IP, port);}return 0;}int ULibUSocket::ServerReceive(PeerSocket* peer, char* data, int* size){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return 0;FString procName = "ServerReceive";fServerReceive* func = (fServerReceive*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){return func(peer, data, size);}return 0;}void ULibUSocket::TCPSendToServer(SOCKET* socket, char* data, int size){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "TCPSendToServer";fTCPSendToServer* func = (fTCPSendToServer*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(socket, data, size);}}void ULibUSocket::ServerSend(PeerSocket* peer, char* data, int size){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "ServerSend";fServerSend* func = (fServerSend*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(peer, data, size);}}void ULibUSocket::UDPSendTo(SOCKET* socket, char* data, int size, char* IP, int port){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "UDPSendTo";fUDPSendTo* func = (fUDPSendTo*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(socket, data, size, IP, port);}}void ULibUSocket::Close(SOCKET* socket){FString filePath = FPaths::GamePluginsDir() + (FString)DLLNAME;void *v_dllHandle = FPlatformProcess::GetDllHandle(*filePath);if (!v_dllHandle) return;FString procName = "Close";fClose* func = (fClose*)FPlatformProcess::GetDllExport(v_dllHandle, *procName);if (func != NULL){func(socket);}}组件使用接口，非阻塞模式
// Fill out your copyright notice in the Description page of Project Settings.#include "Learn.h"#include "ClientSocketComponent.h"#include "Kismet/KismetSystemLibrary.h"//#include "Interface_Selectable.h"// Sets default values for this component's propertiesUClientSocketComponent::UClientSocketComponent(){// Set this component to be initialized when the game starts, and to be ticked every frame. You can turn these features// off to improve performance if you don't need them.PrimaryComponentTick.bCanEverTick = true;// ...}// Called when the game startsvoid UClientSocketComponent::BeginPlay(){Super::BeginPlay();ULibUSocket::Init();tcp = ULibUSocket::CreateTCPClient(LocalPort);ULibUSocket::TCPConnectToServer(tcp, (char*)*IPAddress, Port);ULibUSocket::SocketIONonBlocking(tcp, 1);//非阻塞模式const char* ID = "DISPLAY";ULibUSocket::TCPSendToServer(tcp, (char*)ID, sizeof(ID));//// ...}void UClientSocketComponent::EndPlay(const EEndPlayReason::Type EndPlayReason){ULibUSocket::Close(tcp);ULibUSocket::Shutdown();}// Called every framevoid UClientSocketComponent::TickComponent( float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction ){char data[1024];int len = 1024;int result = ULibUSocket::TCPReceive(tcp, data, &len);if (result == 0){//printf_s("data:%s\n", data);UKismetSystemLibrary::PrintString(this, (FString)data);}// ...}void UClientSocketComponent::ClientOnReceive_Implementation(const FString& data){//TSet<UActorComponent*> coms = actorWithMediaCOM->GetComponents();//if (coms.Num() <= 0)return;/*for (UActorComponent* com : coms){IInterface_Selectable* s = Cast<IInterface_Selectable>(com);//判断组件是否实现了接口，方式不可用//UKismetSystemLibrary::PrintString(this, com->GetName());if (s)s->Execute_OnSelect(actorWithMediaCOM, data);}*//*for (UActorComponent* com : coms){bool impSelectable = com->GetClass()->ImplementsInterface(UInterface_Selectable::StaticClass());if (impSelectable){IInterface_Selectable::Execute_OnSelect(com, data);}}*/}阅读全文
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