--- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/wvstreams/wvudp.h

/* -*- Mode: C++ -*- * Worldvisions Weaver Software: * Copyright (C) 1997-2002 Net Integration Technologies, Inc. * */ #ifndef __WVUDP_H #define __WVUDP_H #include "wvfdstream.h" #include "wvaddr.h" /** * WvUDPStream can send and receive packets on a connectionless UDP socket. * * In the constructor, the socket is attached using bind() to the given * _local address. If the address is, all addresses on the local * host are used; if the port is 0, an available port number is chosen * automatically. * * If the _rem address is, the port is not connect()ed. That means * it can receive packets from anywhere and send them to anywhere. The * src() and setdest() functions are useful for this. If _rem is not, * connect() is called and the socket will only accept data to/from the * specified remote UDP address. * * Buffering: all the usual WvStream-style input buffering is available, * including getline(), but because input packets may get lost it is of * limited usefulness. Buffering will cause particular confusion if the * socket is not connect()ed. */ class WvUDPStream : public WvFDStream { public: /** connect a new socket */ WvUDPStream(const WvIPPortAddr &_local, const WvIPPortAddr &_rem); virtual ~WvUDPStream(); const WvAddr *local() const; /** * return the remote address (source of incoming packets, target of * outgoing packets). This is the last host sent to or received from, * whichever was more recent. */ virtual const WvAddr *src() const; void setdest(const WvIPPortAddr &_remaddr) { remaddr = _remaddr; } void enable_broadcasts(); protected: WvIPPortAddr localaddr, remaddr; virtual size_t uread(void *buf, size_t count); virtual size_t uwrite(const void *buf, size_t count); }; #endif // __WVUDP_H