60edcf4535
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47126 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
338 lines
10 KiB
C++
338 lines
10 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: socket.h
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// Purpose: Socket handling classes
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// Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia
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// Modified by:
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// Created: April 1997
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// RCS-ID: $Id$
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// Copyright: (c) Guilhem Lavaux
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_SOCKET_H_
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#define _WX_SOCKET_H_
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#include "wx/defs.h"
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#if wxUSE_SOCKETS
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// ---------------------------------------------------------------------------
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// wxSocket headers
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// ---------------------------------------------------------------------------
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#include "wx/event.h"
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#include "wx/sckaddr.h"
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#include "wx/gsocket.h"
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#include "wx/list.h"
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// ------------------------------------------------------------------------
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// Types and constants
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// ------------------------------------------------------------------------
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enum wxSocketNotify
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{
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wxSOCKET_INPUT = GSOCK_INPUT,
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wxSOCKET_OUTPUT = GSOCK_OUTPUT,
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wxSOCKET_CONNECTION = GSOCK_CONNECTION,
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wxSOCKET_LOST = GSOCK_LOST
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};
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enum
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{
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wxSOCKET_INPUT_FLAG = GSOCK_INPUT_FLAG,
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wxSOCKET_OUTPUT_FLAG = GSOCK_OUTPUT_FLAG,
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wxSOCKET_CONNECTION_FLAG = GSOCK_CONNECTION_FLAG,
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wxSOCKET_LOST_FLAG = GSOCK_LOST_FLAG
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};
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typedef GSocketEventFlags wxSocketEventFlags;
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enum wxSocketError
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{
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// from GSocket
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wxSOCKET_NOERROR = GSOCK_NOERROR,
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wxSOCKET_INVOP = GSOCK_INVOP,
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wxSOCKET_IOERR = GSOCK_IOERR,
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wxSOCKET_INVADDR = GSOCK_INVADDR,
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wxSOCKET_INVSOCK = GSOCK_INVSOCK,
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wxSOCKET_NOHOST = GSOCK_NOHOST,
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wxSOCKET_INVPORT = GSOCK_INVPORT,
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wxSOCKET_WOULDBLOCK = GSOCK_WOULDBLOCK,
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wxSOCKET_TIMEDOUT = GSOCK_TIMEDOUT,
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wxSOCKET_MEMERR = GSOCK_MEMERR,
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// wxSocket-specific (not yet implemented)
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wxSOCKET_DUMMY
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};
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enum
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{
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wxSOCKET_NONE = 0,
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wxSOCKET_NOWAIT = 1,
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wxSOCKET_WAITALL = 2,
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wxSOCKET_BLOCK = 4,
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wxSOCKET_REUSEADDR = 8,
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wxSOCKET_BROADCAST = 16,
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wxSOCKET_NOBIND = 32
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};
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enum wxSocketType
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{
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wxSOCKET_UNINIT,
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wxSOCKET_CLIENT,
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wxSOCKET_SERVER,
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wxSOCKET_BASE,
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wxSOCKET_DATAGRAM
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};
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typedef int wxSocketFlags;
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// --------------------------------------------------------------------------
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// wxSocketBase
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// --------------------------------------------------------------------------
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class WXDLLIMPEXP_NET wxSocketBase : public wxObject
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{
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DECLARE_CLASS(wxSocketBase)
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public:
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// Public interface
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// ----------------
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// ctors and dtors
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wxSocketBase();
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wxSocketBase(wxSocketFlags flags, wxSocketType type);
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virtual ~wxSocketBase();
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void Init();
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bool Destroy();
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// state
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inline bool Ok() const { return IsOk(); }
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inline bool IsOk() const { return (m_socket != NULL); }
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inline bool Error() const { return m_error; }
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inline bool IsConnected() const { return m_connected; }
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inline bool IsData() { return WaitForRead(0, 0); }
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inline bool IsDisconnected() const { return !IsConnected(); }
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inline wxUint32 LastCount() const { return m_lcount; }
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inline wxSocketError LastError() const { return (wxSocketError)m_socket->GetError(); }
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void SaveState();
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void RestoreState();
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// addresses
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virtual bool GetLocal(wxSockAddress& addr_man) const;
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virtual bool GetPeer(wxSockAddress& addr_man) const;
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virtual bool SetLocal(wxIPV4address& local);
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// base IO
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virtual bool Close();
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wxSocketBase& Discard();
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wxSocketBase& Peek(void* buffer, wxUint32 nbytes);
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wxSocketBase& Read(void* buffer, wxUint32 nbytes);
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wxSocketBase& ReadMsg(void *buffer, wxUint32 nbytes);
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wxSocketBase& Unread(const void *buffer, wxUint32 nbytes);
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wxSocketBase& Write(const void *buffer, wxUint32 nbytes);
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wxSocketBase& WriteMsg(const void *buffer, wxUint32 nbytes);
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void InterruptWait() { m_interrupt = true; }
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bool Wait(long seconds = -1, long milliseconds = 0);
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bool WaitForRead(long seconds = -1, long milliseconds = 0);
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bool WaitForWrite(long seconds = -1, long milliseconds = 0);
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bool WaitForLost(long seconds = -1, long milliseconds = 0);
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inline wxSocketFlags GetFlags() const { return m_flags; }
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void SetFlags(wxSocketFlags flags);
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void SetTimeout(long seconds);
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bool GetOption(int level, int optname, void *optval, int *optlen);
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bool SetOption(int level, int optname, const void *optval, int optlen);
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inline wxUint32 GetLastIOSize() const { return m_lcount; }
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// event handling
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void *GetClientData() const { return m_clientData; }
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void SetClientData(void *data) { m_clientData = data; }
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void SetEventHandler(wxEvtHandler& handler, int id = wxID_ANY);
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void SetNotify(wxSocketEventFlags flags);
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void Notify(bool notify);
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// initialize/shutdown the sockets (usually called automatically)
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static bool IsInitialized();
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static bool Initialize();
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static void Shutdown();
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// Implementation from now on
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// --------------------------
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// do not use, should be private (called from GSocket)
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void OnRequest(wxSocketNotify notify);
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// do not use, not documented nor supported
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inline bool IsNoWait() const { return ((m_flags & wxSOCKET_NOWAIT) != 0); }
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inline wxSocketType GetType() const { return m_type; }
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private:
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friend class wxSocketClient;
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friend class wxSocketServer;
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friend class wxDatagramSocket;
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// low level IO
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wxUint32 _Read(void* buffer, wxUint32 nbytes);
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wxUint32 _Write(const void *buffer, wxUint32 nbytes);
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bool _Wait(long seconds, long milliseconds, wxSocketEventFlags flags);
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// pushback buffer
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void Pushback(const void *buffer, wxUint32 size);
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wxUint32 GetPushback(void *buffer, wxUint32 size, bool peek);
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private:
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// socket
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GSocket *m_socket; // GSocket
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wxSocketType m_type; // wxSocket type
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// state
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wxSocketFlags m_flags; // wxSocket flags
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bool m_connected; // connected?
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bool m_establishing; // establishing connection?
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bool m_reading; // busy reading?
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bool m_writing; // busy writing?
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bool m_error; // did last IO call fail?
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wxSocketError m_lasterror; // last error (not cleared on success)
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wxUint32 m_lcount; // last IO transaction size
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unsigned long m_timeout; // IO timeout value
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wxList m_states; // stack of states
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bool m_interrupt; // interrupt ongoing wait operations?
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bool m_beingDeleted; // marked for delayed deletion?
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wxIPV4address m_localAddress; // bind to local address?
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// pushback buffer
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void *m_unread; // pushback buffer
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wxUint32 m_unrd_size; // pushback buffer size
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wxUint32 m_unrd_cur; // pushback pointer (index into buffer)
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// events
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int m_id; // socket id
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wxEvtHandler *m_handler; // event handler
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void *m_clientData; // client data for events
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bool m_notify; // notify events to users?
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wxSocketEventFlags m_eventmask; // which events to notify?
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// the initialization count, GSocket is initialized if > 0
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static size_t m_countInit;
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DECLARE_NO_COPY_CLASS(wxSocketBase)
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};
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// --------------------------------------------------------------------------
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// wxSocketServer
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// --------------------------------------------------------------------------
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class WXDLLIMPEXP_NET wxSocketServer : public wxSocketBase
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{
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DECLARE_CLASS(wxSocketServer)
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public:
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wxSocketServer(const wxSockAddress& addr, wxSocketFlags flags = wxSOCKET_NONE);
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wxSocketBase* Accept(bool wait = true);
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bool AcceptWith(wxSocketBase& socket, bool wait = true);
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bool WaitForAccept(long seconds = -1, long milliseconds = 0);
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DECLARE_NO_COPY_CLASS(wxSocketServer)
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};
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// --------------------------------------------------------------------------
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// wxSocketClient
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// --------------------------------------------------------------------------
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class WXDLLIMPEXP_NET wxSocketClient : public wxSocketBase
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{
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DECLARE_CLASS(wxSocketClient)
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public:
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wxSocketClient(wxSocketFlags flags = wxSOCKET_NONE);
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virtual ~wxSocketClient();
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virtual bool Connect(wxSockAddress& addr, bool wait = true);
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bool Connect(wxSockAddress& addr, wxSockAddress& local, bool wait = true);
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bool WaitOnConnect(long seconds = -1, long milliseconds = 0);
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private:
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virtual bool DoConnect(wxSockAddress& addr, wxSockAddress* local, bool wait = true);
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DECLARE_NO_COPY_CLASS(wxSocketClient)
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};
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// --------------------------------------------------------------------------
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// wxDatagramSocket
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// --------------------------------------------------------------------------
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// WARNING: still in alpha stage
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class WXDLLIMPEXP_NET wxDatagramSocket : public wxSocketBase
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{
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DECLARE_CLASS(wxDatagramSocket)
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public:
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wxDatagramSocket(const wxSockAddress& addr, wxSocketFlags flags = wxSOCKET_NONE);
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wxDatagramSocket& RecvFrom( wxSockAddress& addr,
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void* buf,
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wxUint32 nBytes );
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wxDatagramSocket& SendTo( const wxSockAddress& addr,
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const void* buf,
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wxUint32 nBytes );
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/* TODO:
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bool Connect(wxSockAddress& addr);
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*/
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DECLARE_NO_COPY_CLASS(wxDatagramSocket)
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};
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// --------------------------------------------------------------------------
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// wxSocketEvent
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// --------------------------------------------------------------------------
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class WXDLLIMPEXP_NET wxSocketEvent : public wxEvent
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{
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public:
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wxSocketEvent(int id = 0)
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: wxEvent(id, wxEVT_SOCKET)
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{
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}
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wxSocketNotify GetSocketEvent() const { return m_event; }
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wxSocketBase *GetSocket() const { return (wxSocketBase *) GetEventObject(); }
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void *GetClientData() const { return m_clientData; }
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virtual wxEvent *Clone() const { return new wxSocketEvent(*this); }
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public:
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wxSocketNotify m_event;
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void *m_clientData;
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DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxSocketEvent)
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};
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typedef void (wxEvtHandler::*wxSocketEventFunction)(wxSocketEvent&);
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#define wxSocketEventHandler(func) \
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(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxSocketEventFunction, &func)
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#define EVT_SOCKET(id, func) \
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wx__DECLARE_EVT1(wxEVT_SOCKET, id, wxSocketEventHandler(func))
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#endif // wxUSE_SOCKETS
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#endif // _WX_SOCKET_H_
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