1. 최초 커밋

2021-05-02 03:45:58 +09:00
commit bab31d6d58
5 changed files with 923 additions and 0 deletions
--- a/IOCP_ECHO_SERVER/IOCP_ECHO_SERVER.vcxproj
+++ b/IOCP_ECHO_SERVER/IOCP_ECHO_SERVER.vcxproj
@@ -0,0 +1,154 @@
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--- a/IOCP_ECHO_SERVER/IOCP_ECHO_SERVER.vcxproj.filters
+++ b/IOCP_ECHO_SERVER/IOCP_ECHO_SERVER.vcxproj.filters
@@ -0,0 +1,22 @@
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--- a/IOCP_ECHO_SERVER/main.cpp
+++ b/IOCP_ECHO_SERVER/main.cpp
@@ -0,0 +1,345 @@
+#include <iostream>
+
+#include <process.h>
+#include <list>
+#include <algorithm>
+
+#include <winsock2.h>
+
+#pragma comment(lib, "ws2_32.lib")
+
+#define IP_ADDRESS 127.0.0.1
+#define PORT_ADDRESS 5000
+
+//template <typename _Type>
+//class COverLapped : public OVERLAPPED
+//{
+//public:
+//	COverLapped(void)
+//	{
+//		m_WsaBuf.len = BUFSIZE;
+//		m_WsaBuf.buf = reinterpret_cast<char*>(buffer);
+//	}
+//	virtual ~COverLapped(void) {}
+//	
+//private:
+//protected:
+//public:
+//	static const UINT BUFSIZE = 4096;
+//
+//	typedef enum _E_OP
+//	{
+//		READY = 0x00,
+//		CREATE,
+//		BIND,
+//		LISTEN,
+//		CONNECT,
+//		ACCEPT,
+//		SEND,
+//		RECV,
+//	}E_OP;
+//
+//	E_OP m_eOperator;
+//
+//	WSABUF m_WsaBuf;
+//	_Type buffer[BUFSIZE];
+//};
+
+static const UINT BUFSIZE = 4096;
+
+class COverLapped : public OVERLAPPED
+{
+public:
+	COverLapped(void) : m_eOperator(E_OP::READY)
+	{
+	}
+	~COverLapped(void) {}
+
+private:
+protected:
+public:
+	typedef enum _E_OP
+	{
+		READY = 0x00,
+		CREATE,
+		BIND,
+		LISTEN,
+		CONNECT,
+		ACCEPT,
+		SEND,
+		RECV,
+	}E_OP;
+
+	E_OP m_eOperator;
+
+	WSABUF m_WsaBuf;
+	CHAR m_buffer[BUFSIZE];
+};
+
+class CIocpSocket
+{
+public:
+	CIocpSocket(void) {}
+	~CIocpSocket(void) 
+	{
+		closesocket(m_Socket);
+		WSACleanup();
+	}
+
+private:
+	CIocpSocket& operator=(const CIocpSocket&) {}
+
+	SOCKET m_Socket;
+	SOCKADDR_IN m_SocketAddr_in;
+
+	HANDLE m_IocpHandle;
+
+	HANDLE *m_ThreadHandle;
+
+	COverLapped m_SendBuf;
+	COverLapped m_RecvBuf;
+
+protected:
+public:
+	bool CreateIocp(void)
+	{
+		WSADATA wsaData;
+		if (WSAStartup(MAKEWORD(2, 2), &wsaData))
+		{
+			int nErrorCode = WSAGetLastError();
+			return false;
+		}
+
+		m_IocpHandle = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0);
+
+		if (!m_IocpHandle)
+		{
+			int nErrorCode = WSAGetLastError();
+			return false;
+		}
+
+		m_Socket = WSASocket(PF_INET, SOCK_STREAM, 0, NULL, 0, WSA_FLAG_OVERLAPPED);
+
+		if (m_Socket == INVALID_SOCKET)
+		{
+			int nErrorCode = WSAGetLastError();
+			return false;
+		}
+
+		// PC <20><><EFBFBD>ҽ<EFBFBD> <20><><EFBFBD><EFBFBD>
+		SYSTEM_INFO systemInfo;
+		GetSystemInfo(&systemInfo);
+
+		// CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
+		UINT dThreadCount = systemInfo.dwNumberOfProcessors * 2;
+		m_ThreadHandle = new HANDLE[dThreadCount];
+		for (int i = 0; i < 1; ++i)
+		{
+			m_ThreadHandle[i] = reinterpret_cast<HANDLE>(_beginthreadex(NULL, NULL, IOCP_QUEUE_THREAD_PROC, (LPVOID)this, 0, NULL));
+		}
+
+		return true;
+	}
+
+	bool Bind(UINT dPort)
+	{
+		memset(&m_SocketAddr_in, 0, sizeof(SOCKADDR_IN));
+		m_SocketAddr_in.sin_family = AF_INET;
+		m_SocketAddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
+		m_SocketAddr_in.sin_port = htons(dPort);
+
+		if (bind(m_Socket, (SOCKADDR *)&m_SocketAddr_in, sizeof(SOCKADDR_IN)) == SOCKET_ERROR)
+		{
+			int nErrorCode = WSAGetLastError();
+			return false;
+		}
+
+		return true;
+	}
+
+	bool Listen(UINT dBacklog = SOMAXCONN)
+	{
+		if (listen(m_Socket, dBacklog) == SOCKET_ERROR)
+		{
+			int nErrorCode = WSAGetLastError();
+			return false;
+		}
+
+		return true;
+	}
+
+	bool Connect(LPTSTR pszIpAddress, WORD wPort)
+	{
+		m_SocketAddr_in.sin_family = AF_INET;
+		int nAddrLen = sizeof(SOCKADDR_IN);
+		WSAStringToAddress(pszIpAddress, AF_INET, NULL, (SOCKADDR*)&m_SocketAddr_in, &nAddrLen);
+		m_SocketAddr_in.sin_port = htons(wPort);
+
+		//if (WSAConnect(m_Socket, (struct sockaddr*)&m_SocketAddr_in, sizeof(SOCKADDR_IN), NULL, NULL, NULL, NULL) < 0)
+		if (connect(m_Socket, (struct sockaddr*)&m_SocketAddr_in, sizeof(SOCKADDR_IN)) < 0)
+		{
+			int err = WSAGetLastError();
+			return false;
+		}
+
+		return true;
+	}
+
+	CIocpSocket* Accept(void)
+	{
+		int nAddrLen = sizeof(SOCKADDR_IN);
+
+		CIocpSocket *pIocpClient = new CIocpSocket();
+		pIocpClient->m_Socket = accept(m_Socket, (SOCKADDR*)&pIocpClient->m_SocketAddr_in, &nAddrLen);
+
+		if (pIocpClient->m_Socket == INVALID_SOCKET)
+		{
+			delete pIocpClient;
+
+			int err = WSAGetLastError();			
+			return NULL;
+		}
+
+		memcpy(&(pIocpClient->m_SocketAddr_in), &pIocpClient->m_SocketAddr_in, nAddrLen);
+
+		if (!CreateIoCompletionPort((HANDLE)pIocpClient->m_Socket, m_IocpHandle, (DWORD)pIocpClient, 0))
+		{
+			delete pIocpClient;
+
+			int nErrorCode = WSAGetLastError();
+			return false;
+		}
+
+		return pIocpClient;
+	}
+
+	static UINT __stdcall IOCP_QUEUE_THREAD_PROC(LPVOID lpvoid)
+	{
+		CIocpSocket* pCIocpSocket = static_cast<CIocpSocket*>(lpvoid);
+
+		while (TRUE)
+		{
+			DWORD dwNumberOfBytesTransferred = 0;
+			CIocpSocket *pCIocpSocket_Target = NULL;
+			COverLapped *pOverlapped = NULL;
+			//PER_IO_DATA *pPER_IO_DATA = NULL;
+
+			BOOL bResult = GetQueuedCompletionStatus(pCIocpSocket->m_IocpHandle,
+				&dwNumberOfBytesTransferred,
+				(LPDWORD)&pCIocpSocket_Target,
+				//(LPOVERLAPPED*)&pPER_IO_DATA,
+				(LPOVERLAPPED*)&pOverlapped,
+				INFINITE);
+
+			if (bResult == FALSE || dwNumberOfBytesTransferred == 0)
+			{
+				closesocket(pCIocpSocket_Target->m_Socket);
+				pCIocpSocket_Target->OnDisconnect();
+				continue;
+			}
+
+			//switch (pPER_IO_DATA->rwMode)
+			switch (pOverlapped->m_eOperator)
+			{
+			case COverLapped::E_OP::SEND:
+				pCIocpSocket_Target->OnSend(pOverlapped->m_WsaBuf.buf, dwNumberOfBytesTransferred);
+				break;
+			case COverLapped::E_OP::RECV:
+				pCIocpSocket_Target->OnRecv(pOverlapped->m_WsaBuf.buf, dwNumberOfBytesTransferred);
+				pCIocpSocket_Target->send((BYTE*)pOverlapped->m_WsaBuf.buf, dwNumberOfBytesTransferred);
+				break;
+			}
+		}
+
+		return 0;
+	}
+
+	void send(BYTE *pData, UINT dDataLength)
+	{
+		UINT dLessSendCount = dDataLength;
+		while ((int)dDataLength >= 1)
+		{
+			memset((OVERLAPPED*)&m_SendBuf, 0, sizeof(OVERLAPPED));
+			m_SendBuf.m_eOperator = COverLapped::E_OP::SEND;
+			m_SendBuf.m_WsaBuf.len = dDataLength<BUFSIZE?dDataLength:BUFSIZE;
+			m_SendBuf.m_WsaBuf.buf = (CHAR*)&pData[dLessSendCount-dDataLength];
+			dDataLength -= m_SendBuf.m_WsaBuf.len;
+
+			DWORD dwFlags = 0;
+						
+			WSASend(m_Socket, &m_SendBuf.m_WsaBuf, 1, NULL, 0, (OVERLAPPED*)&m_SendBuf, NULL);
+		}
+	}
+
+	void recv(void)
+	{
+		COverLapped *pOverlapped = new COverLapped();		
+		memset((OVERLAPPED*)pOverlapped, 0, sizeof(OVERLAPPED));
+		pOverlapped->m_eOperator = COverLapped::E_OP::RECV;
+		pOverlapped->m_WsaBuf.len = BUFSIZE;
+		pOverlapped->m_WsaBuf.buf = pOverlapped->m_buffer;
+
+		//PER_IO_DATA *pPER_IO_DATA = new PER_IO_DATA();
+		//memset(&(pPER_IO_DATA->overlapped), 0, sizeof(OVERLAPPED));
+		//pPER_IO_DATA->rwMode = 2;
+		//pPER_IO_DATA->wsaBuf.len = BUFSIZE;
+		//pPER_IO_DATA->wsaBuf.buf = pPER_IO_DATA->buffer;
+
+		DWORD dwFlags = 0;
+
+		WSARecv(m_Socket, &(pOverlapped->m_WsaBuf), 1/*pOverlapped->BUFSIZE*/, NULL, &dwFlags, (OVERLAPPED*)pOverlapped, NULL);
+		//WSARecv(m_Socket, &(pPER_IO_DATA->wsaBuf), 1/*pOverlapped->BUFSIZE*/, NULL, &dwFlags, &(pPER_IO_DATA->overlapped), NULL);
+	}
+
+	//virtual void OnAccept(void);
+	//virtual void OnConnect(void);
+	virtual void OnRecv(CHAR *pData, UINT dDataLength) 
+	{
+		printf("CIocpSocket OnRecv(Port : %d) : %s\r\n", m_SocketAddr_in.sin_port, pData);
+	}
+
+	virtual void OnSend(CHAR *pData, UINT dDataLength)
+	{
+		printf("CIocpSocket OnSend(Port : %d) : %s\r\n", m_SocketAddr_in.sin_port, pData);
+	}
+
+	virtual void OnDisconnect(void) 
+	{
+		printf("CIocpSocket OnDisconnect\r\n");
+	}
+};
+
+class CIocpServer : public CIocpSocket
+{
+public:
+
+private:
+protected:
+public:
+	void run(void)
+	{
+		CreateIocp();
+		Bind(5000);
+		Listen();
+
+		while (TRUE)
+		{
+			CIocpSocket *pClientSocket = Accept();
+			pClientSocket->recv();
+		}
+	}
+
+	virtual void OnRecv(BYTE *pData, UINT dDataLength)
+	{
+		printf("CIocpServer OnRecv : %s\r\n", pData);
+	}
+};
+
+int main(int argc, char *argv[])
+{
+	CIocpServer is;
+
+	is.run();
+
+	return 0;
+}