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Socket.h

Go to the documentation of this file.

#ifndef CLASSLIB_SOCKET_H
# define CLASSLIB_SOCKET_H

//<<<<<< INCLUDES                                                       >>>>>>

# include "classlib/iobase/IOChannel.h"
# include "classlib/iobase/SocketConst.h"
# include <string>

//<<<<<< PUBLIC DEFINES                                                 >>>>>>
//<<<<<< PUBLIC CONSTANTS                                               >>>>>>
//<<<<<< PUBLIC TYPES                                                   >>>>>>

struct sockaddr;

namespace lat {

//<<<<<< PUBLIC VARIABLES                                               >>>>>>
//<<<<<< PUBLIC FUNCTIONS                                               >>>>>>
//<<<<<< CLASS DECLARATIONS                                             >>>>>>

class SocketAddress
{
public:
    virtual ~SocketAddress (void);

    virtual size_t      size (void) const = 0;
    virtual int         family (void) const = 0;
    virtual sockaddr *  address (void) const = 0;
};


class Socket : public IOChannel
{
public:
    ~Socket (void);

    // Socket specific operations
    virtual void        oob (bool process = true);
    virtual void        shutdown (int mode);
    virtual void        close (void);
    virtual void        abort (void);

    virtual void        listen (int queuelen = 1);

    static bool         hasopt (int option);
    virtual int         getopt (int option,
                                int level = SocketConst::OptLevelSocket) const;
    virtual int         getopt (int option, void *p, size_t n,
                                int level = SocketConst::OptLevelSocket) const;
    virtual void        setopt (int option, int n,
                                int level = SocketConst::OptLevelSocket) const;
    virtual void        setopt (int option, const void *p, size_t n,
                                int level = SocketConst::OptLevelSocket) const;

    virtual int         type (void) const;
    virtual int         linger (int time = -1) const;
    // FIXME: easy access to other common options? broadcast,
    // receive/send buffer sizes, reuse address, timeout

    using IOChannel::read;
    using IOChannel::write;

    virtual IOSize      read (void *into, IOSize n);
    virtual IOSize      peek (void *into, IOSize n);
    IOSize              peek (IOBuffer into);
    virtual IOSize      write (const void *from, IOSize n);

    virtual Socket *    accept (void);

protected:
    Socket (void);

    void                create (int af, int type, int protocol);

    size_t              sockname (SocketAddress &addr);
    size_t              peername (SocketAddress &addr);
    
    void                bind (const SocketAddress &addr);
    void                connect (const SocketAddress &addr);
    virtual Socket *    copy (void) = 0; /*< Make a copy of the socket.  */

    IOSize              read (void *into, IOSize n, SocketAddress &source);
    IOSize              peek (void *into, IOSize n, SocketAddress &source);
    IOSize              write (const void *from, IOSize n, const SocketAddress &dest);

    virtual void        select (IOSelectMethod *to, const IOSelectRequest &req);

private:
    static void         sysinit (void);

    void                *m_extra;
    bool                m_oob;
};

//<<<<<< INLINE PUBLIC FUNCTIONS                                        >>>>>>
//<<<<<< INLINE MEMBER FUNCTIONS                                        >>>>>>

} // namespace lat
#endif // CLASSLIB_SOCKET_H

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