win_net.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _WIN_NET
- #define _WIN_NET
- #include "hlxclib/sys/types.h"
- #include <stdio.h>
- #include <winsock.h>
- #include "conn.h"
- #include "hxmap.h"
- // Predeclare this guy
- #ifndef WIN32_PLATFORM_PSPC
- class CAsyncSockN;
-
- class HXAsyncNetCallback;
- #endif
- class win_net : public conn
- {
- public:
-
- /* call new_socket() to automatically create the correct platform specific network object.
- The type parameter may be either HX_TCP_SOCKET or HX_UDP_SOCKET. If new_socket() returns
- NULL, an error occurred and the conn object was not created. Call last_error() to get the error */
-
- static win_net *new_socket (UINT16 type);
- ~win_net (void);
- /* call init_drivers() to do any platform specific initialization of the network drivers
- before calling any other functions in this class */
-
- static HX_RESULT init_drivers (void *params);
- /* close_drivers() should close any network drivers used by the program
- NOTE: The program MUST not make any other calls to the network drivers
- until init_drivers() has been called */
- static HX_RESULT close_drivers (void *params);
- /* host_to_ip_str() converts the host name to an ASCII ip address of
- the form "XXX.XXX.XXX.XXX" */
- static HX_RESULT host_to_ip_str (char *host, char *ip, UINT32 ulIPBufLen);
- /* call done() when you are finsihed with the socket. Done() will close the socket.
- You may reuse the socket by calling init() or connect() */
- static HX_RESULT get_host_name(char *name, int namelen);
- static HX_RESULT get_host_by_name(char *name, REF(struct hostent*) pHostent);
-
- virtual void done (void);
- virtual ULONG32 AddRef (void);
- virtual ULONG32 Release (void);
-
- // just for DNS for hostname...
- // is introduced for RTSP...
- virtual HX_RESULT dns_find_ip_addr (const char * host, UINT16 blocking=0);
- virtual BOOL dns_ip_addr_found(BOOL * valid, ULONG32 *addr);
- virtual HX_RESULT init (UINT32 local_addr,
- UINT16 port,
- UINT16 blocking=0)=0;
-
- virtual HX_RESULT init_win (UINT16 type,
- UINT32 local_addr,
- UINT16 port,
- UINT16 blocking=0);
-
- virtual HX_RESULT listen (ULONG32 ulAddr,
- UINT16 port,
- UINT16 backlog,
- UINT16 blocking = 0,
- ULONG32 ulPlatform = 0);
-
- virtual HX_RESULT connect (const char *host,
- UINT16 port,
- UINT16 blocking=0,
- ULONG32 ulPlatform=0);
-
- virtual HX_RESULT connect (sockaddr_in *addr);
- virtual HX_RESULT blocking (void);
-
- virtual HX_RESULT nonblocking (void);
-
- virtual HX_RESULT read (void *buf,
- UINT16 *size);
- virtual HX_RESULT readfrom (REF(IHXBuffer*) pBuffer,
- REF(UINT32) ulAddress,
- REF(UINT16) ulPort);
-
- virtual HX_RESULT write (void *buf,
- UINT16 *size);
- virtual HX_RESULT writeto (void *buf,
- UINT16 *len,
- ULONG32 addr,
- UINT16 port);
- virtual BOOL set_receive_buf_size (int DesiredSize);
- virtual UINT16 connection_really_open (void) {return m_SocketState == CONN_OPEN;};
- /* don't make sense for TCP */
- virtual HX_RESULT join_multicast_group(ULONG32 addr, ULONG32 if_addr)
- {
- return HXR_INVALID_OPERATION;
- }
- virtual HX_RESULT leave_multicast_group(ULONG32 addr, ULONG32 if_addr)
- {
- return HXR_INVALID_OPERATION;
- }
- virtual HX_RESULT set_broadcast(BOOL enable)
- {
- return HXR_INVALID_OPERATION;
- }
- virtual HX_RESULT set_multicast_if(ULONG32 ulInterface)
- {
- return HXR_INVALID_OPERATION;
- }
- virtual HX_RESULT set_send_size(ULONG32 send_size)
- {
- return HXR_INVALID_OPERATION;
- }
- virtual HX_RESULT set_multicast()
- {
- return HXR_INVALID_OPERATION;
- }
- virtual HX_RESULT set_multicast_ttl(unsigned char ttl)
- {
- return HXR_INVALID_OPERATION;
- }
- virtual HX_RESULT reuse_addr(BOOL enable);
- virtual HX_RESULT reuse_port(BOOL enable);
- virtual ULONG32 get_addr (void) ;
- virtual UINT16 get_local_port (void) ;
-
- // we need it for dns_find_ip_addr since async stuff needs a window handle...
- virtual HX_RESULT SetWindowHandle(ULONG32 handle);
- virtual void IgnoreWSAECONNRESET(BOOL b) {m_bIgnoreWSAECONNRESET = b;}
- #if defined(HELIX_FEATURE_NETWORK_USE_SELECT)
- virtual HX_RESULT WaitforSelect(void *,void *);
- virtual HX_RESULT CheckForConnection();
- #endif HELIX_FEATURE_NETWORK_USE_SELECT
-
- private:
- virtual HX_RESULT connect_accept (ULONG32 ulPlatform, sockaddr_in Addr);
- char* m_pInBuffer;
- static int zm_LibRefCount;
- static CHXMapPtrToPtr zm_MapObjectsToWinsockTasks;
- static CHXMapPtrToPtr zm_WinsockTasksRefCounts;
- public:
- static int IsWinsockAvailable(void* pObject);
- static int ReleaseWinsockUsage(void* pObject);
-
- HX_RESULT WriteComplete (char * Buffer, int length);
- int ReadyToWrite ();
- #ifndef WIN32_PLATFORM_PSPC
- // Callbacks from our Async Net notifier object
- void CB_DNSComplete( int iSuccess );
- void CB_ConnectionComplete( int iSuccess );
- void CB_ReadWriteNotification( int iType );
- void CB_CloseNotification();
- void CB_AcceptNotification();
- HX_RESULT ConnectAsync( LPCSTR host, UINT16 port );
- void ContinueAsyncConnect();
- // Handle to any active Async DNS type operations. Usually NULL meaning
- // no such operations are active.
- HANDLE m_hAsyncHandle;
- #endif
- protected:
- win_net (void);
- #ifndef WIN32_PLATFORM_PSPC
- HX_RESULT DoStartAsyncConn();
- #endif
-
- int callRaConnect;
- int InBlockingMode;
- int bReadyToWrite;
- struct sockaddr from;
- // NEW ASYNC DNS STUFF
- typedef enum tagCONN_STATE
- {
- CONN_CLOSED = 0, // Socket not readable or writeable
- CONN_NO_CONN, // Socket needs to be connected (TCP)
- CONN_DNS_INPROG, // DNS is in progress reads/writes will return HX_WOULDBLOCK
- CONN_DNS_FAILED, // Error doing DNS (return HXR_INVALID_HOST error next read or write)
- CONN_CONNECT_INPROG, // DNS is complete, but the connection not complete
- CONN_CONNECT_FAILED, // Error doing Connect (return error next read or write)
- CONN_OPEN, // Socket readable/writeable
- CONN_CLOSING, // Socket is shutdown, reading might work, writing will fail
- CONN_LISTENNING, // Socket is listenning for connections
- CONN_BOGUS_STATE // NOT A VALID SOCKET STATE - USED FOR RANGE CHECKING AT MOST
- } CONN_STATE;
- HINSTANCE m_hInst;
- UINT16 m_AsyncPort;
- char* m_pAsyncHost;
- char* m_AsyncAddress;
- #ifndef WIN32_PLATFORM_PSPC
- CAsyncSockN* m_AsyncNotifier;
- #endif
- CONN_STATE m_SocketState;
-
- // stores addr about where we are connected to currently
- ULONG32 CurrentAddr;
- // just for DNS for hostname...
- // is introduced for RTSP...
- BOOL m_DNSOnly;
- LONG32 m_lRefCount;
- //
- BOOL m_bReuseAddr;
- BOOL m_bReusePort;
- BOOL m_bIgnoreWSAECONNRESET;
- };
- class win_UDP: public win_net {
- public :
- HX_RESULT init(UINT32 local_addr, UINT16 port,
- UINT16 blocking=0)
- {
- callRaConnect = 0;
- return win_net::init_win(SOCK_DGRAM, local_addr, port,
- blocking);
- };
- HX_RESULT connect(const char* host, UINT16 port, UINT16 blocking=0, ULONG32 ulPlatform = 0 );
- HX_RESULT connect(sockaddr_in *addr, UINT16 blocking=0);
- HX_RESULT SetWindowHandle(ULONG32 handle);
- HX_RESULT join_multicast_group(ULONG32 addr, ULONG32 if_addr);
- HX_RESULT leave_multicast_group(ULONG32 addr, ULONG32 if_addr);
- HX_RESULT set_multicast_if(ULONG32 ulInterface);
- HX_RESULT set_broadcast(BOOL enable);
- HX_RESULT set_send_size(UINT32 send_size);
- HX_RESULT set_multicast();
- HX_RESULT set_multicast_ttl(unsigned char ttl);
- HX_RESULT listen (ULONG32 ulLocalAddr, UINT16 port, UINT16 backlog, UINT16 blocking=0, ULONG32 ulPlatform = 0);
- HX_RESULT GetFromInfo(ULONG32& ulAddr, UINT16& nPort);
- };
- class win_TCP: public win_net {
- public :
- HX_RESULT init(UINT32 local_addr, UINT16 port,
- UINT16 blocking=0)
- {
- return win_net::init_win(SOCK_STREAM, local_addr, port,
- blocking);
- };
- HX_RESULT connect(const char* host, UINT16 port, UINT16 blocking=0, ULONG32 ulPlatform = 0 );
- HX_RESULT connect(sockaddr_in *addr, UINT16 blocking=0);
- HX_RESULT listen (ULONG32 ulLocalAddr, UINT16 port, UINT16 backlog, UINT16 blocking=0, ULONG32 ulPlatform = 0);
- };
- class WinsockManager{
- public :
- WinsockManager();
- ~WinsockManager();
- void Initialize();
- BOOL IsInitialized();
- private :
- BOOL bInitialized;
- };
- #endif // _WIN_NET