9181a38382
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6422 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
324 lines
9.2 KiB
C++
324 lines
9.2 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_NETWORK_SOCKET_H
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#define _WX_NETWORK_SOCKET_H
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#ifdef __GNUG__
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#pragma interface "socket.h"
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#endif
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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 (generic)
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// ---------------------------------------------------------------------------
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#ifdef WXPREC
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# include "wx/wxprec.h"
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#else
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# include "wx/event.h"
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# include "wx/string.h"
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#endif
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#include "wx/sckaddr.h"
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#include "wx/gsocket.h"
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// ------------------------------------------------------------------------
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// 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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wxSOCKET_NOERROR = GSOCK_NOERROR,
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wxSOCKET_INPOP = 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_BUSY
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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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};
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// Type of socket
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enum wxSockType
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{
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SOCK_CLIENT,
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SOCK_SERVER,
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SOCK_DATAGRAM,
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SOCK_INTERNAL,
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SOCK_UNINIT
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};
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typedef int wxSockFlags;
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// ------------------------------------------------------------------------
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// wxSocket base
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// ------------------------------------------------------------------------
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class WXDLLEXPORT wxTimer;
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class WXDLLEXPORT wxSocketEvent;
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class WXDLLEXPORT wxSocketBase : public wxEvtHandler
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{
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DECLARE_CLASS(wxSocketBase)
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public:
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enum
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{
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NONE = wxSOCKET_NONE,
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NOWAIT = wxSOCKET_NOWAIT,
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WAITALL = wxSOCKET_WAITALL,
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SPEED = wxSOCKET_BLOCK
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};
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typedef void (*wxSockCbk)(wxSocketBase& sock, wxSocketNotify evt, char *cdata);
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protected:
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GSocket *m_socket; // GSocket
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wxEvtHandler *m_evt_handler; // event handler
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int m_id; // Socket id (for event handler)
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// Attributes
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wxSockFlags m_flags; // wxSocket flags
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wxSockType m_type; // wxSocket type
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wxSocketEventFlags m_neededreq; // Event mask
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bool m_notify_state; // Notify events to users?
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// State
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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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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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// Pushback buffer
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char *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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// Callback
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wxSockCbk m_cbk; // C callback
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char *m_cdata; // C callback data
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public:
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wxSocketBase();
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virtual ~wxSocketBase();
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virtual bool Destroy();
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// Base IO
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virtual bool Close();
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wxSocketBase& Peek(char* buffer, wxUint32 nbytes);
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wxSocketBase& Read(char* buffer, wxUint32 nbytes);
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wxSocketBase& Write(const char *buffer, wxUint32 nbytes);
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wxSocketBase& Unread(const char *buffer, wxUint32 nbytes);
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wxSocketBase& ReadMsg(char *buffer, wxUint32 nbytes);
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wxSocketBase& WriteMsg(const char *buffer, wxUint32 nbytes);
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wxSocketBase& Discard();
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// Status
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inline bool Ok() 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 IsDisconnected() const { return !IsConnected(); };
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inline bool IsNoWait() const { return ((m_flags & NOWAIT) != 0); };
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inline bool IsData() { return WaitForRead(0, 0); };
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inline wxUint32 LastCount() const { return m_lcount; }
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inline wxSocketError LastError() const { return (wxSocketError)GSocket_GetError(m_socket); }
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inline wxSockType GetType() const { return m_type; }
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// Addresses
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virtual bool GetPeer(wxSockAddress& addr_man) const;
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virtual bool GetLocal(wxSockAddress& addr_man) const;
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// Set attributes and flags
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void SetTimeout(long seconds);
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void SetFlags(wxSockFlags flags);
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inline wxSockFlags GetFlags() const { return m_flags; };
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/* Wait functions
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* seconds = -1 means default timeout (change with SetTimeout)
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* seconds, milliseconds = 0 means no wait
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* seconds, milliseconds > 0 means specified wait
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*/
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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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/* This function interrupts all ongoing wait operations for this
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* socket; use it only as an escape mechanism (for example to close
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* an app or to abort an operation). Reception of LOST events and
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* calls to Close() automatically call this.
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*/
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void InterruptAllWaits() { m_interrupt = TRUE; };
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// Save the current state of Socket
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void SaveState();
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void RestoreState();
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// Setup event handler
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void SetEventHandler(wxEvtHandler& evt_hdlr, int id = -1);
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// Tell wxSocket which events to notify
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void SetNotify(wxSocketEventFlags flags);
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void Notify(bool notify);
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static wxSocketEventFlags EventToNotify(wxSocketNotify evt);
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inline wxSocketEventFlags NeededReq() const { return m_neededreq; }
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// External callback
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wxSockCbk Callback(wxSockCbk cbk_);
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char *CallbackData(char *data);
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// Public internal callback
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virtual void OldOnNotify(wxSocketNotify WXUNUSED(evt));
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// Do NOT use this function; it should be protected!
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void OnRequest(wxSocketNotify req_evt);
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protected:
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friend class wxSocketServer;
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friend class wxSocketClient;
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friend class wxSocketHandler;
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#ifdef __SALFORDC__
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public:
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#endif
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wxSocketBase(wxSockFlags flags, wxSockType type);
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#ifdef __SALFORDC__
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protected:
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#endif
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// Low level IO
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wxUint32 _Read(char* buffer, wxUint32 nbytes);
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wxUint32 _Write(const char *buffer, wxUint32 nbytes);
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bool _Wait(long seconds, long milliseconds, wxSocketEventFlags flags);
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// Pushbacks
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void Pushback(const char *buffer, wxUint32 size);
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wxUint32 GetPushback(char *buffer, wxUint32 size, bool peek);
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};
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////////////////////////////////////////////////////////////////////////
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class WXDLLEXPORT wxSocketServer : public wxSocketBase
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{
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DECLARE_CLASS(wxSocketServer)
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public:
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// 'service' can be a name or a port-number
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wxSocketServer(wxSockAddress& addr_man, wxSockFlags flags = wxSOCKET_NONE);
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wxSocketBase* Accept(bool wait = TRUE);
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bool AcceptWith(wxSocketBase& sock, bool wait = TRUE);
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bool WaitForAccept(long seconds = -1, long milliseconds = 0);
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};
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////////////////////////////////////////////////////////////////////////
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class WXDLLEXPORT wxSocketClient : public wxSocketBase
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{
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DECLARE_CLASS(wxSocketClient)
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public:
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wxSocketClient(wxSockFlags flags = wxSOCKET_NONE);
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virtual ~wxSocketClient();
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virtual bool Connect(wxSockAddress& addr_man, bool wait = TRUE);
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bool WaitOnConnect(long seconds = -1, long milliseconds = 0);
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};
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////////////////////////////////////////////////////////////////////////
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class wxDatagramSocket : public wxSocketBase
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{
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DECLARE_CLASS(wxDatagramSocket)
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public:
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wxDatagramSocket( wxSockAddress& addr, wxSockFlags flags = wxSOCKET_NONE );
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wxDatagramSocket& RecvFrom( wxSockAddress& addr,
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char* buf,
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wxUint32 nBytes );
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wxDatagramSocket& SendTo( wxSockAddress& addr,
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const char* buf,
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wxUint32 nBytes );
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};
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////////////////////////////////////////////////////////////////////////
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class WXDLLEXPORT wxSocketEvent : public wxEvent {
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DECLARE_DYNAMIC_CLASS(wxSocketEvent)
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public:
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wxSocketEvent(int id = 0);
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wxSocketNotify SocketEvent() const { return m_skevt; }
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wxSocketBase *Socket() const { return m_socket; }
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void CopyObject(wxObject& obj_d) const;
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public:
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wxSocketNotify m_skevt;
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wxSocketBase *m_socket;
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};
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typedef void (wxEvtHandler::*wxSocketEventFunction)(wxSocketEvent&);
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#define EVT_SOCKET(id, func) { wxEVT_SOCKET, id, -1, \
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(wxObjectEventFunction) (wxEventFunction) (wxSocketEventFunction) & func, \
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(wxObject *) NULL },
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#endif
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// wxUSE_SOCKETS
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#endif
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// _WX_NETWORK_SOCKET_H
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