/** @file * InnoTek Portable Runtime - TCP/IP. */ /* * Copyright (C) 2006 InnoTek Systemberatung GmbH * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License as published by the Free Software Foundation, * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE * distribution. VirtualBox OSE is distributed in the hope that it will * be useful, but WITHOUT ANY WARRANTY of any kind. * * If you received this file as part of a commercial VirtualBox * distribution, then only the terms of your commercial VirtualBox * license agreement apply instead of the previous paragraph. */ #ifndef __iprt_tcp_h__ #define __iprt_tcp_h__ #include #include #include #ifdef IN_RING0 # error "There are no RTFile APIs available Ring-0 Host Context!" #endif __BEGIN_DECLS /** @defgroup grp_rt_tcp RTTcp - TCP/IP * @ingroup grp_rt * @{ */ /** * Serve a TCP Server connection. * * @returns iprt status code. * @returns VERR_TCP_SERVER_STOP to terminate the server loop forcing * the RTTcpCreateServer() call to return. * @param Sock The socket which the client is connected to. * The call will close this socket. * @param pvUser User argument. */ typedef DECLCALLBACK(int) FNRTTCPSERVE(RTSOCKET Sock, void *pvUser); /** Pointer to a RTTCPSERVE(). */ typedef FNRTTCPSERVE *PFNRTTCPSERVE; /** Pointer to a RTTCPSERVER handle. */ typedef struct RTTCPSERVER *PRTTCPSERVER; /** Pointer to a RTTCPSERVER handle. */ typedef PRTTCPSERVER *PPRTTCPSERVER; /** * Create single connection at a time TCP Server in a separate thread. * * The thread will loop accepting connections and call pfnServe for * each of the incoming connections in turn. The pfnServe function can * return VERR_TCP_SERVER_STOP too terminate this loop. RTTcpServerDestroy() * should be used to terminate the server. * * @returns iprt status code. * @param pszAddress The address for creating a listening socket. * If NULL or empty string the server is bound to all interfaces. * @param uPort The port for creating a listening socket. * @param enmType The thread type. * @param pszThrdName The name of the worker thread. * @param pfnServe The function which will serve a new client connection. * @param pvUser User argument passed to pfnServe. * @param ppServer Where to store the serverhandle. */ RTR3DECL(int) RTTcpServerCreate(const char *pszAddress, unsigned uPort, RTTHREADTYPE enmType, const char *pszThrdName, PFNRTTCPSERVE pfnServe, void *pvUser, PPRTTCPSERVER ppServer); /** * Create single connection at a time TCP Server. * The caller must call RTTcpServerListen() to actually start the server. * * @returns iprt status code. * @param pszAddress The address for creating a listening socket. * If NULL the server is bound to all interfaces. * @param uPort The port for creating a listening socket. * @param ppServer Where to store the serverhandle. */ RTR3DECL(int) RTTcpServerCreateEx(const char *pszAddress, uint32_t uPort, PPRTTCPSERVER ppServer); /** * Closes down and frees a TCP Server. * This will also terminate any open connections to the server. * * @returns iprt status code. * @param pServer Handle to the server. */ RTR3DECL(int) RTTcpServerDestroy(PRTTCPSERVER pServer); /** * Listen for incoming connections. * * The function will loop accepting connections and call pfnServe for * each of the incoming connections in turn. The pfnServe function can * return VERR_TCP_SERVER_STOP too terminate this loop. A stopped server * can only be destroyed. * * @returns iprt status code. * @param pServer The server handle as returned from RTTcpServerCreateEx(). * @param pfnServe The function which will serve a new client connection. * @param pvUser User argument passed to pfnServe. */ RTR3DECL(int) RTTcpServerListen(PRTTCPSERVER pServer, PFNRTTCPSERVE pfnServe, void *pvUser); /** * Terminate the open connection to the server. * * @returns iprt status code. * @param pServer Handle to the server. */ RTR3DECL(int) RTTcpServerDisconnectClient(PRTTCPSERVER pServer); /** * Connect (as a client) to a TCP Server. * * @returns iprt status code. * @param pszAddress The address to connect to. * @param uPort The port to connect to. * @param pSock Where to store the handle to the established connection. */ RTR3DECL(int) RTTcpClientConnect(const char *pszAddress, uint32_t uPort, PRTSOCKET pSock); /** * Close a socket returned by RTTcpClientConnect(). * * @returns iprt status code. * @param Sock Socket descriptor. */ RTR3DECL(int) RTTcpClientClose(RTSOCKET Sock); /** * Receive data from a socket. * * @returns iprt status code. * @param Sock Socket descriptor. * @param pvBuffer Where to put the data we read. * @param cbBuffer Read buffer size. * @param pcbRead Number of bytes read. * If NULL the entire buffer will be filled upon successful return. * If not NULL a partial read can be done successfully. */ RTR3DECL(int) RTTcpRead(RTSOCKET Sock, void *pvBuffer, size_t cbBuffer, size_t *pcbRead); /** * Send data from a socket. * * @returns iprt status code. * @param Sock Socket descriptor. * @param pvBuffer Buffer to write data to socket. * @param cbBuffer How much to write. */ RTR3DECL(int) RTTcpWrite(RTSOCKET Sock, const void *pvBuffer, size_t cbBuffer); /** * Flush socket write buffers. * * @returns iprt status code. * @param Sock Socket descriptor. */ RTR3DECL(int) RTTcpFlush(RTSOCKET Sock); /** * Socket I/O multiplexing. * Checks if the socket is ready for reading. * * @returns iprt status code. * @param Sock Socket descriptor. * @param cMillies Number of milliseconds to wait for the socket. * Use RT_INDEFINITE_WAIT to wait for ever. */ RTR3DECL(int) RTTcpSelectOne(RTSOCKET Sock, unsigned cMillies); #if 0 /* skipping these for now - RTTcpServer* handles this. */ /** * Listen for connection on a socket. * * @returns iprt status code. * @param Sock Socket descriptor. * @param cBackLog The maximum length the queue of pending connections * may grow to. */ RTR3DECL(int) RTTcpListen(RTSOCKET Sock, int cBackLog); /** * Accept a connection on a socket. * * @returns iprt status code. * @param Sock Socket descriptor. * @param uPort The port for accepting connection. * @param pSockAccepted Where to store the handle to the accepted connection. */ RTR3DECL(int) RTTcpAccept(RTSOCKET Sock, unsigned uPort, PRTSOCKET pSockAccepted); #endif /** @} */ __END_DECLS #endif