http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/wvstreams/wvresolver.h

/* -*- Mode: C++ -*- * Worldvisions Weaver Software: * Copyright (C) 1997-2002 Net Integration Technologies, Inc. * * DNS name resolver with support for background lookups. */ #ifndef __WVRESOLVER_H #define __WVRESOLVER_H #include "wvaddr.h" #include "wvstream.h" #include "wvlinklist.h" #include "wvhashtable.h" class WvResolverHost; class WvResolverAddr; DeclareWvDict(WvResolverHost, WvString, name); DeclareWvDict(WvResolverAddr, WvIPAddr, addr[0]); DeclareWvList(WvIPAddr); /** ASynchronous DNS resolver functions, so that we can do non-blocking lookups */ class WvResolver { static int numresolvers; static WvResolverHostDict *hostmap; static WvResolverAddrDict *addrmap; public: WvResolver(); ~WvResolver(); /** * Return -1 on timeout, or the number of addresses found, which may * be 0 if the address does not exist. * addrlist, if present, has to be an initialized list. * addr points to an internal WvIPAddr and will be deleted automatically. */ int findaddr(int msec_timeout, WvStringParm name, WvIPAddr const **addr, WvIPAddrList *addrlist = NULL); int findname(int msec_timeout, WvIPAddr *ipaddr, char **name); void clearhost(WvStringParm hostname); /** add all of our waiting fds to an fd_set for use with select(). */ bool pre_select(WvStringParm hostname, WvStream::SelectInfo &si); }; #endif // __WVRESOLVER_H