/* -------------------------------------------------------------------------
- * Project: GSocket (Generic Socket) for WX
- * Name: gsockunx.h
- * Purpose: GSocket Unix header
- * CVSID: $Id$
+ * Project: GSocket (Generic Socket) for WX
+ * Name: gsockunx.h
+ * Copyright: (c) Guilhem Lavaux
+ * Licence: wxWindows Licence
+ * Purpose: GSocket Unix header
+ * CVSID: $Id$
* -------------------------------------------------------------------------
*/
-#ifndef __GSOCK_UNX_H
-#define __GSOCK_UNX_H
+#ifndef _WX_UNIX_GSOCKUNX_H_
+#define _WX_UNIX_GSOCKUNX_H_
-#ifndef __GSOCKET_STANDALONE__
-#include "wx/setup.h"
-#endif
+#include <unistd.h>
-#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
+class wxGSocketIOHandler;
-#ifndef __GSOCKET_STANDALONE__
-#include "wx/gsocket.h"
-#else
-#include "gsocket.h"
-#endif
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-
-/* Definition of GSocket */
-struct _GSocket
+class GSocket : public GSocketBase
{
- int m_fd;
- GAddress *m_local;
- GAddress *m_peer;
- GSocketError m_error;
-
- bool m_non_blocking;
- bool m_server;
- bool m_stream;
- bool m_oriented;
- bool m_establishing;
- unsigned long m_timeout;
-
- /* Callbacks */
- GSocketEventFlags m_detected;
- GSocketCallback m_cbacks[GSOCK_MAX_EVENT];
- char *m_data[GSOCK_MAX_EVENT];
-
- char *m_gui_dependent;
+public:
+ GSocket(wxSocketBase& wxsocket);
+ virtual ~GSocket();
+
+ virtual void Shutdown();
+ virtual GSocket *WaitConnection(wxSocketBase& wxsocket);
+
+ GSocketError SetServer();
+ bool SetReusable();
+ bool SetBroadcast();
+ bool DontDoBind();
+ GSocketError Connect(GSocketStream stream);
+ GSocketError SetNonOriented();
+ int Read(char *buffer, int size);
+ int Write(const char *buffer, int size);
+ void SetNonBlocking(bool non_block);
+ GSocketError WXDLLIMPEXP_NET GetError();
+ GSocketError GetSockOpt(int level, int optname, void *optval, int *optlen);
+ GSocketError SetSockOpt(int level, int optname,
+ const void *optval, int optlen);
+ //attach or detach from main loop
+ void Notify(bool flag);
+ void Detected_Read();
+ void Detected_Write();
+
+private:
+ // enable or disable notifications for socket input/output events but only
+ // if m_use_events is true; do nothing otherwise
+ void EnableEvents()
+ {
+ if ( m_use_events )
+ DoEnableEvents(true);
+ }
+
+ void DisableEvents()
+ {
+ if ( m_use_events )
+ DoEnableEvents(false);
+ }
+
+ // really enable or disable socket input/output events, regardless of
+ // m_use_events value
+ void DoEnableEvents(bool enable);
+
+
+ // enable or disable events for the given event if m_use_events; do nothing
+ // otherwise
+ //
+ // notice that these functions also update m_detected: EnableEvent() clears
+ // the corresponding bit in it and DisableEvent() sets it
+ void EnableEvent(GSocketEvent event);
+ void DisableEvent(GSocketEvent event);
+
+
+ GSocketError Input_Timeout();
+ GSocketError Output_Timeout();
+ int Recv_Stream(char *buffer, int size);
+ int Recv_Dgram(char *buffer, int size);
+ int Send_Stream(const char *buffer, int size);
+ int Send_Dgram(const char *buffer, int size);
+public:
+ /* DFE: We can't protect these data member until the GUI code is updated */
+ /* protected: */
+ wxGSocketIOHandler *m_handler;
+
+ // true if socket should fire events
+ bool m_use_events;
+
+ // pointer for storing extra (usually GUI-specific) data
+ void *m_gui_dependent;
+
+private:
+ // notify the associated wxSocket about a change in socket state and shut
+ // down the socket if the event is GSOCK_LOST
+ void OnStateChange(GSocketEvent event);
};
-/* Definition of GAddress */
-struct _GAddress
+// A version of GSocketManager which uses FDs for socket IO
+//
+// This class uses GSocket::m_gui_dependent field to store the 2 (for input and
+// output) FDs associated with the socket.
+class GSocketFDBasedManager : public GSocketManager
{
- struct sockaddr *m_addr;
- size_t m_len;
-
- GAddressType m_family;
- int m_realfamily;
-
- GSocketError m_error;
+public:
+ // no special initialization/cleanup needed when using FDs
+ virtual bool OnInit() { return true; }
+ virtual void OnExit() { }
+
+ // allocate/free the storage we need
+ virtual bool Init_Socket(GSocket *socket)
+ {
+ socket->m_gui_dependent = malloc(sizeof(int)*2);
+ int * const fds = static_cast<int *>(socket->m_gui_dependent);
+
+ fds[0] = -1;
+ fds[1] = -1;
+
+ return true;
+ }
+
+ virtual void Close_Socket(GSocket *socket)
+ {
+ Uninstall_Callback(socket, GSOCK_INPUT);
+ Uninstall_Callback(socket, GSOCK_OUTPUT);
+
+ close(socket->m_fd);
+ }
+
+ virtual void Destroy_Socket(GSocket *socket)
+ {
+ free(socket->m_gui_dependent);
+ }
+
+protected:
+ // identifies either input or output direction
+ //
+ // NB: the values of this enum shouldn't change
+ enum SocketDir
+ {
+ FD_INPUT,
+ FD_OUTPUT
+ };
+
+ // get the FD index corresponding to the given GSocketEvent
+ SocketDir GetDirForEvent(GSocket *socket, GSocketEvent event)
+ {
+ switch ( event )
+ {
+ default:
+ wxFAIL_MSG( "unexpected socket event" );
+ // fall through
+
+ case GSOCK_LOST:
+ // fall through
+
+ case GSOCK_INPUT:
+ return FD_INPUT;
+
+ case GSOCK_OUTPUT:
+ return FD_OUTPUT;
+
+ case GSOCK_CONNECTION:
+ // FIXME: explain this?
+ return socket->m_server ? FD_INPUT : FD_OUTPUT;
+ }
+ }
+
+ // access the FDs we store
+ int& FD(GSocket *socket, SocketDir d)
+ {
+ return static_cast<int *>(socket->m_gui_dependent)[d];
+ }
};
-/* Input / Output */
-
-GSocketError _GSocket_Input_Timeout(GSocket *socket);
-GSocketError _GSocket_Output_Timeout(GSocket *socket);
-int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size);
-int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size);
-int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size);
-int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size);
-
-/* Callbacks */
-
-bool _GSocket_GUI_Init(GSocket *socket);
-void _GSocket_GUI_Destroy(GSocket *socket);
-
-void _GSocket_Enable_Events(GSocket *socket);
-void _GSocket_Disable_Events(GSocket *socket);
-void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event);
-void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event);
-
-void _GSocket_Enable(GSocket *socket, GSocketEvent event);
-void _GSocket_Disable(GSocket *socket, GSocketEvent event);
-void _GSocket_Detected_Read(GSocket *socket);
-void _GSocket_Detected_Write(GSocket *socket);
-
-/* GAddress */
-
-GSocketError _GAddress_translate_from(GAddress *address,
- struct sockaddr *addr, int len);
-GSocketError _GAddress_translate_to (GAddress *address,
- struct sockaddr **addr, int *len);
-GSocketError _GAddress_Init_INET(GAddress *address);
-GSocketError _GAddress_Init_UNIX(GAddress *address);
-
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */
+// Common base class for all ports using X11-like (and hence implemented in
+// X11, Motif and GTK) AddInput() and RemoveInput() functions
+class GSocketInputBasedManager : public GSocketFDBasedManager
+{
+public:
+ virtual void Install_Callback(GSocket *socket, GSocketEvent event)
+ {
+ wxCHECK_RET( socket->m_fd != -1,
+ "shouldn't be called on invalid socket" );
+
+ const SocketDir d = GetDirForEvent(socket, event);
+
+ int& fd = FD(socket, d);
+ if ( fd != -1 )
+ RemoveInput(fd);
+
+ fd = AddInput(socket, d);
+ }
+
+ virtual void Uninstall_Callback(GSocket *socket, GSocketEvent event)
+ {
+ const SocketDir d = GetDirForEvent(socket, event);
+
+ int& fd = FD(socket, d);
+ if ( fd != -1 )
+ {
+ RemoveInput(fd);
+ fd = -1;
+ }
+ }
+
+private:
+ // these functions map directly to XtAdd/RemoveInput() or
+ // gdk_input_add/remove()
+ virtual int AddInput(GSocket *socket, SocketDir d) = 0;
+ virtual void RemoveInput(int fd) = 0;
+};
-#endif /* __GSOCK_UNX_H */
+#endif /* _WX_UNIX_GSOCKUNX_H_ */
projects / wxWidgets.git / blobdiff