RetroZilla/xpinstall/wizard/libxpnet/GUSI/include/GUSIMTInet.h

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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
// % Project : GUSI - Grand Unified Socket Interface
// % File : GUSIMTInet.nw - Common routines for MacTCP
// % Author : Matthias Neeracher
// % Language : C++
// %
// % $Log: GUSIMTInet.h,v $
// % Revision 1.1 2001/03/11 22:35:57 sgehani%netscape.com
// % First Checked In.
// %
// % Revision 1.14 2000/10/16 04:34:23 neeri
// % Releasing 2.1.2
// %
// % Revision 1.13 2000/05/23 07:03:25 neeri
// % Improve formatting
// %
// % Revision 1.12 1999/08/26 05:45:04 neeri
// % Fixes for literate edition of source code
// %
// % Revision 1.11 1999/08/02 07:02:43 neeri
// % Support for asynchronous errors and other socket options
// %
// % Revision 1.10 1999/06/30 07:42:06 neeri
// % Getting ready to release 2.0b3
// %
// % Revision 1.9 1999/05/29 06:26:43 neeri
// % Fixed header guards
// %
// % Revision 1.8 1999/04/29 05:33:19 neeri
// % Fix fcntl prototype
// %
// % Revision 1.7 1999/03/17 09:05:08 neeri
// % Added GUSITimer, expanded docs
// %
// % Revision 1.6 1998/10/25 11:57:35 neeri
// % Ready to release 2.0a3
// %
// % Revision 1.5 1998/10/11 16:45:16 neeri
// % Ready to release 2.0a2
// %
// % Revision 1.4 1998/02/11 12:57:12 neeri
// % PowerPC Build
// %
// % Revision 1.3 1998/01/25 20:53:55 neeri
// % Engine implemented, except for signals & scheduling
// %
// % Revision 1.2 1996/12/22 19:57:56 neeri
// % TCP streams work
// %
// % Revision 1.1 1996/12/16 02:12:40 neeri
// % TCP Sockets sort of work
// %
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// \chapter{Basic MacTCP code}
//
// A [[GUSIMTInetSocket]] defines the infrastructure shared between
// MacTCP TCP and UDP sockets.
//
// <GUSIMTInet.h>=
#ifndef _GUSIMTInet_
#define _GUSIMTInet_
#ifdef GUSI_SOURCE
#include <sys/cdefs.h>
__BEGIN_DECLS
// <Definition of [[GUSIwithMTInetSockets]]>=
void GUSIwithMTInetSockets();
__END_DECLS
#ifdef GUSI_INTERNAL
#include "GUSISocket.h"
#include "GUSISocketMixins.h"
#include <netinet/in.h>
#include <MacTCP.h>
// \section{Definition of [[GUSIMTInetSocket]]}
//
// MacTCP related sockets are buffered, have a standard state model, and can be
// nonblocking.
//
// <Definition of class [[GUSIMTInetSocket]]>=
class GUSIMTInetSocket :
public GUSISocket,
protected GUSISMBlocking,
protected GUSISMState,
protected GUSISMInputBuffer,
protected GUSISMOutputBuffer,
protected GUSISMAsyncError
{
public:
GUSIMTInetSocket();
// [[bind]] for MacTCP sockets has the fatal flaw that it is totally unable to
// reserve a socket.
//
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual int bind(void * addr, socklen_t namelen);
// [[getsockname]] and [[getpeername]] return the stored values.
//
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual int getsockname(void * addr, socklen_t * namelen);
virtual int getpeername(void * addr, socklen_t * namelen);
// [[shutdown]] just delegates to [[GUSISMState]].
//
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual int shutdown(int how);
// [[fcntl]] handles the blocking support.
//
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual int fcntl(int cmd, va_list arg);
// [[ioctl]] deals with blocking support and with [[FIONREAD]].
//
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual int ioctl(unsigned int request, va_list arg);
// [[getsockopt]] and [[setsockopt]] are available for setting buffer sizes and
// getting asynchronous errors.
//
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual int getsockopt(int level, int optname, void *optval, socklen_t * optlen);
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual int setsockopt(int level, int optname, void *optval, socklen_t optlen);
// MacTCP sockets implement socket style calls.
//
// <Overridden member functions for [[GUSIMTInetSocket]]>=
virtual bool Supports(ConfigOption config);
// MacTCP I/O calls communicate by means of read and write data structures,
// of which we need only the most primitive variants.
//
// <Definition of classes [[MiniWDS]] and [[MidiWDS]]>=
#if PRAGMA_STRUCT_ALIGN
#pragma options align=mac68k
#endif
class MiniWDS {
public:
u_short fLength;
char * fDataPtr;
u_short fZero;
MiniWDS() : fZero(0) {}
Ptr operator &() { return (Ptr)this; }
};
class MidiWDS {
public:
u_short fLength;
char * fDataPtr;
u_short fLength2;
char * fDataPtr2;
u_short fZero;
MidiWDS() : fZero(0) {}
Ptr operator &() { return (Ptr)this; }
};
#if PRAGMA_STRUCT_ALIGN
#pragma options align=reset
#endif
// The only other interesting bit in the interface is the driver management, which
// arranges to open the MacTCP driver and domain name resolver at most once,
// as late as possible in the program (If you open some SLIP or PPP drivers
// before the Toolbox is initialized, you'll wish you'd curled up by the fireside
// with a nice Lovecraft novel instead). [[Driver]] returns the driver reference
// number of the MacTCP driver. [[HostAddr]] returns our host's IP address.
//
// <MacTCP driver management>=
static short Driver();
static u_long HostAddr();
protected:
// All MacTCP related sockets need a [[StreamPtr]]; they store their own and
// their peer's address away, and the save errors reported at interrupt time
// in an [[fAsyncError]] field.
//
// <Data members for [[GUSIMTInetSocket]]>=
StreamPtr fStream;
sockaddr_in fSockAddr;
sockaddr_in fPeerAddr;
// \section{Implementation of [[GUSIMTInetSocket]]}
//
// [[Driver]] preserves error status in an [[OSErr]]
// variable, initially [[1]] to convey unresolvedness.
//
// <Data members for [[GUSIMTInetSocket]]>=
static short sDrvrRefNum;
static OSErr sDrvrState;
static u_long sHostAddress;
};
#endif /* GUSI_INTERNAL */
#endif /* GUSI_SOURCE */
#endif /* _GUSIMTInet_ */