/////////////////////////////////////////////////////////////////////////////
// Name: socket.h
// Purpose: Socket handling classes
-// Author: Guilhem Lavaux
+// Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia
// Modified by:
// Created: April 1997
// RCS-ID: $Id$
#define _WX_NETWORK_SOCKET_H
#ifdef __GNUG__
-#pragma interface "socket.h"
+ #pragma interface "socket.h"
#endif
#include "wx/defs.h"
#if wxUSE_SOCKETS
// ---------------------------------------------------------------------------
-// wxSocket headers (generic)
+// wxSocket headers
// ---------------------------------------------------------------------------
+
#ifdef WXPREC
-# include "wx/wxprec.h"
+ #include "wx/wxprec.h"
#else
-# include "wx/event.h"
-# include "wx/string.h"
+ #include "wx/event.h"
+ #include "wx/string.h"
#endif
#include "wx/sckaddr.h"
#include "wx/gsocket.h"
// ------------------------------------------------------------------------
-// GSocket type alias
+// Types and constants
// ------------------------------------------------------------------------
-typedef enum {
+enum wxSocketNotify
+{
wxSOCKET_INPUT = GSOCK_INPUT,
wxSOCKET_OUTPUT = GSOCK_OUTPUT,
wxSOCKET_CONNECTION = GSOCK_CONNECTION,
wxSOCKET_LOST = GSOCK_LOST
-} wxSocketNotify;
+};
-enum {
+enum
+{
wxSOCKET_INPUT_FLAG = GSOCK_INPUT_FLAG,
wxSOCKET_OUTPUT_FLAG = GSOCK_OUTPUT_FLAG,
wxSOCKET_CONNECTION_FLAG = GSOCK_CONNECTION_FLAG,
typedef GSocketEventFlags wxSocketEventFlags;
-typedef enum {
+enum wxSocketError
+{
+ // from GSocket
wxSOCKET_NOERROR = GSOCK_NOERROR,
- wxSOCKET_INPOP = GSOCK_INVOP,
+ wxSOCKET_INVOP = GSOCK_INVOP,
wxSOCKET_IOERR = GSOCK_IOERR,
wxSOCKET_INVADDR = GSOCK_INVADDR,
wxSOCKET_INVSOCK = GSOCK_INVSOCK,
wxSOCKET_INVPORT = GSOCK_INVPORT,
wxSOCKET_WOULDBLOCK = GSOCK_WOULDBLOCK,
wxSOCKET_TIMEDOUT = GSOCK_TIMEDOUT,
- wxSOCKET_MEMERR = GSOCK_MEMERR
-} wxSocketError;
+ wxSOCKET_MEMERR = GSOCK_MEMERR,
-// ------------------------------------------------------------------------
-// wxSocket base
-// ------------------------------------------------------------------------
+ // wxSocket-specific (not yet implemented)
+ wxSOCKET_DUMMY
+};
-class WXDLLEXPORT wxTimer;
-class WXDLLEXPORT wxSocketEvent;
-class WXDLLEXPORT wxSocketBase : public wxEvtHandler
+enum
{
- DECLARE_CLASS(wxSocketBase)
-public:
+ wxSOCKET_NONE = 0,
+ wxSOCKET_NOWAIT = 1,
+ wxSOCKET_WAITALL = 2,
+ wxSOCKET_BLOCK = 4
+};
+
+enum wxSocketType
+{
+ wxSOCKET_UNINIT,
+ wxSOCKET_CLIENT,
+ wxSOCKET_SERVER,
+ wxSOCKET_BASE,
+ wxSOCKET_DATAGRAM
+};
- enum { NONE=0, NOWAIT=1, WAITALL=2, SPEED=4 };
- typedef int wxSockFlags;
- // Type of request
+typedef int wxSocketFlags;
- enum wxSockType { SOCK_CLIENT, SOCK_SERVER, SOCK_INTERNAL, SOCK_UNINIT };
- typedef void (*wxSockCbk)(wxSocketBase& sock,wxSocketNotify evt,char *cdata);
-protected:
- GSocket *m_socket; // wxSocket socket
- wxSockFlags m_flags; // wxSocket flags
- wxSockType m_type; // wxSocket type
- wxSocketEventFlags m_neededreq; // Specify which requet signals we need
- wxUint32 m_lcount; // Last IO request size
- unsigned long m_timeout; // IO timeout value
+#if WXWIN_COMPATIBILITY
+ typedef wxSocketType wxSockType;
+ typedef wxSocketFlags wxSockFlags;
+#endif // WXWIN_COMPATIBILITY
- char *m_unread; // Pushback buffer
- wxUint32 m_unrd_size; // Pushback buffer size
- wxUint32 m_unrd_cur; // Pushback pointer
- wxSockCbk m_cbk; // C callback
- char *m_cdata; // C callback data
+// --------------------------------------------------------------------------
+// wxSocketBase
+// --------------------------------------------------------------------------
- bool m_connected; // Connected ?
- bool m_notify_state; // Notify state
- int m_id; // Socket id (for event handler)
+class WXDLLEXPORT wxSocketBase : public wxObject
+{
+ DECLARE_CLASS(wxSocketBase)
- // Defering variables
- enum {
- DEFER_READ, DEFER_WRITE, NO_DEFER
- } m_defering; // Defering state
- char *m_defer_buffer; // Defering target buffer
- wxUint32 m_defer_nbytes; // Defering buffer size
- wxTimer *m_defer_timer; // Timer for defering mode
+public:
- wxList m_states; // Stack of states
+#if WXWIN_COMPATIBILITY
+ enum
+ {
+ NONE = wxSOCKET_NONE,
+ NOWAIT = wxSOCKET_NOWAIT,
+ WAITALL = wxSOCKET_WAITALL,
+ SPEED = wxSOCKET_BLOCK
+ };
+
+ enum
+ {
+ SOCK_UNINIT = wxSOCKET_UNINIT,
+ SOCK_CLIENT = wxSOCKET_CLIENT,
+ SOCK_SERVER = wxSOCKET_SERVER,
+ SOCK_INTERNAL = wxSOCKET_BASE,
+ SOCK_DATAGRAM = wxSOCKET_DATAGRAM
+ };
+
+ typedef void (*wxSockCbk)(wxSocketBase& sock, wxSocketNotify evt, char *cdata);
+#endif // WXWIN_COMPATIBILITY
public:
+
+ // Public interface
+ // ----------------
+
+ // ctors and dtors
wxSocketBase();
+ wxSocketBase(wxSocketFlags flags, wxSocketType type);
virtual ~wxSocketBase();
- virtual bool Close();
-
- // Base IO
- wxSocketBase& Peek(char* buffer, wxUint32 nbytes);
- wxSocketBase& Read(char* buffer, wxUint32 nbytes);
- wxSocketBase& Write(const char *buffer, wxUint32 nbytes);
- wxSocketBase& Unread(const char *buffer, wxUint32 nbytes);
- wxSocketBase& ReadMsg(char *buffer, wxUint32 nbytes);
- wxSocketBase& WriteMsg(const char *buffer, wxUint32 nbytes);
- void Discard();
-
- // Try not to use this two methods (they sould be protected)
- void CreatePushbackAfter(const char *buffer, wxUint32 size);
- void CreatePushbackBefore(const char *buffer, wxUint32 size);
-
- // Status
+ void Init();
+ bool Destroy();
+
+ // state
inline bool Ok() const { return (m_socket != NULL); };
- inline bool Error() const
- { return (GSocket_GetError(m_socket) != GSOCK_NOERROR); };
+ inline bool Error() const { return m_error; };
inline bool IsConnected() const { return m_connected; };
+ inline bool IsData() { return WaitForRead(0, 0); };
inline bool IsDisconnected() const { return !IsConnected(); };
- inline bool IsNoWait() const { return ((m_flags & NOWAIT) != 0); };
- bool IsData() const;
inline wxUint32 LastCount() const { return m_lcount; }
inline wxSocketError LastError() const { return (wxSocketError)GSocket_GetError(m_socket); }
- inline wxSockType GetType() const { return m_type; }
+ void SaveState();
+ void RestoreState();
- void SetFlags(wxSockFlags _flags);
- wxSockFlags GetFlags() const;
- void SetTimeout(unsigned long sec);
+ // addresses
+ virtual bool GetLocal(wxSockAddress& addr_man) const;
+ virtual bool GetPeer(wxSockAddress& addr_man) const;
- // seconds = -1 means infinite wait
- // seconds = 0 means no wait
- // seconds > 0 means specified wait
+ // base IO
+ virtual bool Close();
+ wxSocketBase& Discard();
+ wxSocketBase& Peek(void* buffer, wxUint32 nbytes);
+ wxSocketBase& Read(void* buffer, wxUint32 nbytes);
+ wxSocketBase& ReadMsg(void *buffer, wxUint32 nbytes);
+ wxSocketBase& Unread(const void *buffer, wxUint32 nbytes);
+ wxSocketBase& Write(const void *buffer, wxUint32 nbytes);
+ wxSocketBase& WriteMsg(const void *buffer, wxUint32 nbytes);
+
+ void InterruptWait() { m_interrupt = TRUE; };
bool Wait(long seconds = -1, long milliseconds = 0);
bool WaitForRead(long seconds = -1, long milliseconds = 0);
bool WaitForWrite(long seconds = -1, long milliseconds = 0);
bool WaitForLost(long seconds = -1, long milliseconds = 0);
- // Save the current state of Socket
- void SaveState();
- void RestoreState();
-
- // Setup external callback
- wxSockCbk Callback(wxSockCbk cbk_);
- char *CallbackData(char *data);
-
- // Setup event handler
- void SetEventHandler(wxEvtHandler& evt_hdlr, int id = -1);
+ inline wxSocketFlags GetFlags() const { return m_flags; }
+ void SetFlags(wxSocketFlags flags);
+ void SetTimeout(long seconds);
- // Method called when it happens something on the socket
+ // event handling
+ void *GetClientData() const { return m_clientData; }
+ void SetClientData(void *data) { m_clientData = data; }
+ void SetEventHandler(wxEvtHandler& handler, int id = -1);
void SetNotify(wxSocketEventFlags flags);
- virtual void OnRequest(wxSocketNotify req_evt);
-
- // Public internal callback
- virtual void OldOnNotify(wxSocketNotify WXUNUSED(evt));
-
- // Some info on the socket...
- virtual bool GetPeer(wxSockAddress& addr_man) const;
- virtual bool GetLocal(wxSockAddress& addr_man) const;
-
- // Install or uninstall callbacks
void Notify(bool notify);
- // So you can know what the socket driver is looking for ...
- inline wxSocketEventFlags NeededReq() const { return m_neededreq; }
-
- static wxSocketEventFlags EventToNotify(wxSocketNotify evt);
+ // initialize/shutdown the sockets (usually called automatically)
+ static bool IsInitialized();
+ static bool Initialize();
+ static void Shutdown();
-protected:
- friend class wxSocketServer;
- friend class wxSocketHandler;
- friend class wxSocketInternal;
+ // callbacks are deprecated, use events instead
+#if WXWIN_COMPATIBILITY
+ wxSockCbk Callback(wxSockCbk cbk_);
+ char *CallbackData(char *data);
+#endif // WXWIN_COMPATIBILITY
-#ifdef __SALFORDC__
-public:
-#endif
- wxSocketBase(wxSockFlags flags, wxSockType type);
+ // Implementation from now on
+ // --------------------------
-#ifdef __SALFORDC__
-protected:
-#endif
+ // do not use, should be private (called from GSocket)
+ void OnRequest(wxSocketNotify notify);
- bool _Wait(long seconds, long milliseconds, int type);
+ // do not use, not documented nor supported
+ inline bool IsNoWait() const { return ((m_flags & wxSOCKET_NOWAIT) != 0); }
+ inline wxSocketType GetType() const { return m_type; }
- int DeferRead(char *buffer, wxUint32 nbytes);
- int DeferWrite(const char *buffer, wxUint32 nbytes);
- void DoDefer(wxSocketNotify evt);
-
- // Pushback library
- wxUint32 GetPushback(char *buffer, wxUint32 size, bool peek);
+private:
+ friend class wxSocketClient;
+ friend class wxSocketServer;
+ friend class wxDatagramSocket;
+
+ // low level IO
+ wxUint32 _Read(void* buffer, wxUint32 nbytes);
+ wxUint32 _Write(const void *buffer, wxUint32 nbytes);
+ bool _Wait(long seconds, long milliseconds, wxSocketEventFlags flags);
+
+ // pushback buffer
+ void Pushback(const void *buffer, wxUint32 size);
+ wxUint32 GetPushback(void *buffer, wxUint32 size, bool peek);
+
+private:
+ // socket
+ GSocket *m_socket; // GSocket
+ wxSocketType m_type; // wxSocket type
+
+ // state
+ wxSocketFlags m_flags; // wxSocket flags
+ bool m_connected; // connected?
+ bool m_establishing; // establishing connection?
+ bool m_reading; // busy reading?
+ bool m_writing; // busy writing?
+ bool m_error; // did last IO call fail?
+ wxSocketError m_lasterror; // last error (not cleared on success)
+ wxUint32 m_lcount; // last IO transaction size
+ unsigned long m_timeout; // IO timeout value
+ wxList m_states; // stack of states
+ bool m_interrupt; // interrupt ongoing wait operations?
+ bool m_beingDeleted; // marked for delayed deletion?
+
+ // pushback buffer
+ void *m_unread; // pushback buffer
+ wxUint32 m_unrd_size; // pushback buffer size
+ wxUint32 m_unrd_cur; // pushback pointer (index into buffer)
+
+ // events
+ int m_id; // socket id
+ wxEvtHandler *m_handler; // event handler
+ void *m_clientData; // client data for events
+ bool m_notify; // notify events to users?
+ wxSocketEventFlags m_eventmask; // which events to notify?
+
+ // the initialization count, GSocket is initialized if > 0
+ static size_t m_countInit;
+
+ // callbacks are deprecated, use events instead
+#if WXWIN_COMPATIBILITY
+ wxSockCbk m_cbk; // callback
+ char *m_cdata; // callback data
+#endif // WXWIN_COMPATIBILITY
};
-////////////////////////////////////////////////////////////////////////
+
+// --------------------------------------------------------------------------
+// wxSocketServer
+// --------------------------------------------------------------------------
class WXDLLEXPORT wxSocketServer : public wxSocketBase
{
DECLARE_CLASS(wxSocketServer)
-public:
- // 'service' can be a name or a port-number
+public:
+ wxSocketServer(wxSockAddress& addr, wxSocketFlags flags = wxSOCKET_NONE);
- wxSocketServer(wxSockAddress& addr_man, wxSockFlags flags = wxSocketBase::NONE);
+ wxSocketBase* Accept(bool wait = TRUE);
+ bool AcceptWith(wxSocketBase& socket, bool wait = TRUE);
- wxSocketBase* Accept();
- bool AcceptWith(wxSocketBase& sock);
+ bool WaitForAccept(long seconds = -1, long milliseconds = 0);
};
-////////////////////////////////////////////////////////////////////////
+
+// --------------------------------------------------------------------------
+// wxSocketClient
+// --------------------------------------------------------------------------
class WXDLLEXPORT wxSocketClient : public wxSocketBase
{
DECLARE_CLASS(wxSocketClient)
-public:
- wxSocketClient(wxSockFlags flags = wxSocketBase::NONE);
+public:
+ wxSocketClient(wxSocketFlags flags = wxSOCKET_NONE);
virtual ~wxSocketClient();
- virtual bool Connect(wxSockAddress& addr_man, bool wait = TRUE);
+ virtual bool Connect(wxSockAddress& addr, bool wait = TRUE);
bool WaitOnConnect(long seconds = -1, long milliseconds = 0);
+};
+
+
+// --------------------------------------------------------------------------
+// wxDatagramSocket
+// --------------------------------------------------------------------------
+
+// WARNING: still in alpha stage
- virtual void OnRequest(wxSocketNotify flags);
+class wxDatagramSocket : public wxSocketBase
+{
+ DECLARE_CLASS(wxDatagramSocket)
+
+public:
+ wxDatagramSocket(wxSockAddress& addr, wxSocketFlags flags = wxSOCKET_NONE);
+
+ wxDatagramSocket& RecvFrom( wxSockAddress& addr,
+ void* buf,
+ wxUint32 nBytes );
+ wxDatagramSocket& SendTo( wxSockAddress& addr,
+ const void* buf,
+ wxUint32 nBytes );
+
+/* TODO:
+ bool Connect(wxSockAddress& addr);
+*/
};
-class WXDLLEXPORT wxSocketEvent : public wxEvent {
- DECLARE_DYNAMIC_CLASS(wxSocketEvent)
+
+// --------------------------------------------------------------------------
+// wxSocketEvent
+// --------------------------------------------------------------------------
+
+class WXDLLEXPORT wxSocketEvent : public wxEvent
+{
public:
- wxSocketEvent(int id = 0);
+ wxSocketEvent(int id = 0)
+ : wxEvent(id, wxEVT_SOCKET)
+ {
+ }
+
+ wxSocketNotify GetSocketEvent() const { return m_event; }
+ wxSocketBase *GetSocket() const { return (wxSocketBase *) GetEventObject(); }
+ void *GetClientData() const { return m_clientData; }
- wxSocketNotify SocketEvent() const { return m_skevt; }
- wxSocketBase *Socket() const { return m_socket; }
+ // backwards compatibility
+#if WXWIN_COMPATIBILITY_2
+ wxSocketNotify SocketEvent() const { return m_event; }
+ wxSocketBase *Socket() const { return (wxSocketBase *) GetEventObject(); }
+#endif // WXWIN_COMPATIBILITY_2
- void CopyObject(wxObject& obj_d) const;
+ virtual wxEvent *Clone() const { return new wxSocketEvent(*this); }
public:
- wxSocketNotify m_skevt;
- wxSocketBase *m_socket;
+ wxSocketNotify m_event;
+ void *m_clientData;
+
+ DECLARE_DYNAMIC_CLASS(wxSocketEvent)
};
+
typedef void (wxEvtHandler::*wxSocketEventFunction)(wxSocketEvent&);
-#define EVT_SOCKET(id, func) { wxEVT_SOCKET, id, -1, \
- (wxObjectEventFunction) (wxEventFunction) (wxSocketEventFunction) & func, \
- (wxObject *) NULL },
+#define EVT_SOCKET(id, func) \
+ DECLARE_EVENT_TABLE_ENTRY( wxEVT_SOCKET, id, -1, \
+ (wxObjectEventFunction) \
+ (wxEventFunction) \
+ (wxSocketEventFunction) & func, \
+ (wxObject *) NULL ),
+
#endif
// wxUSE_SOCKETS
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