/* -------------------------------------------------------------------------
* Project: GSocket (Generic Socket)
- * Name: gsockmsw.cpp
+ * Name: src/msw/gsockmsw.cpp
* Copyright: (c) Guilhem Lavaux
* Licence: wxWindows Licence
* Author: Guillermo Rodriguez Garcia <guille@iies.es>
#pragma hdrstop
#endif
+#if wxUSE_SOCKETS
+
/*
* DONE: for WinCE we need to replace WSAAsyncSelect
* (Windows message-based notification of network events for a socket)
# pragma warning(disable:4115) /* named type definition in parentheses */
#endif
-/* This needs to be before the wx/defs/h inclusion
- * for some reason
- */
-
-#ifdef __WXWINCE__
- /* windows.h results in tons of warnings at max warning level */
-# ifdef _MSC_VER
-# pragma warning(push, 1)
-# endif
-# include <windows.h>
-# ifdef _MSC_VER
-# pragma warning(pop)
-# pragma warning(disable:4514)
-# endif
-#endif
-
-#ifndef __GSOCKET_STANDALONE__
-# include "wx/platform.h"
-# include "wx/setup.h"
-#endif
-
-#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
-
-#ifndef __GSOCKET_STANDALONE__
-
-#include "wx/msw/gsockmsw.h"
#include "wx/gsocket.h"
+#include "wx/apptrait.h"
+#include "wx/link.h"
-extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance(void);
-#define INSTANCE wxGetInstance()
-
-#else /* __GSOCKET_STANDALONE__ */
-
-#include "gsockmsw.h"
-#include "gsocket.h"
+wxFORCE_LINK_THIS_MODULE(gsockmsw)
-/* If not using wxWidgets, a global var called hInst must
- * be available and it must contain the app's instance
- * handle.
- */
-extern HINSTANCE hInst;
-#define INSTANCE hInst
-
-#endif /* !__GSOCKET_STANDALONE__/__GSOCKET_STANDALONE__ */
+extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance();
+#define INSTANCE wxGetInstance()
-#ifndef __WXWINCE__
-#include <assert.h>
-#else
-#define assert(x)
+#ifdef __WXWINCE__
#include <winsock.h>
#include "wx/msw/wince/net.h"
-#include <wx/hashmap.h>
+#include "wx/hashmap.h"
WX_DECLARE_HASH_MAP(int,bool,wxIntegerHash,wxIntegerEqual,SocketHash);
#endif
long lNetworkEvents;
int iErrorCode[10];
} WSANETWORKEVENTS, FAR * LPWSANETWORKEVENTS;
-typedef HANDLE (PASCAL *WSACreateEventFunc)(void);
+typedef HANDLE (PASCAL *WSACreateEventFunc)();
typedef int (PASCAL *WSAEventSelectFunc)(SOCKET,HANDLE,long);
typedef int (PASCAL *WSAWaitForMultipleEventsFunc)(long,HANDLE,BOOL,long,BOOL);
typedef int (PASCAL *WSAEnumNetworkEventsFunc)(SOCKET,HANDLE,LPWSANETWORKEVENTS);
/* This structure will be used to pass data on to the thread that handles socket events.
*/
typedef struct thread_data{
- HWND hEvtWin;
- unsigned long msgnumber;
- unsigned long fd;
- unsigned long lEvent;
+ HWND hEvtWin;
+ unsigned long msgnumber;
+ unsigned long fd;
+ unsigned long lEvent;
}thread_data;
#endif
*/
DWORD WINAPI SocketThread(LPVOID data)
{
- WSANETWORKEVENTS NetworkEvents;
- thread_data* d = (thread_data *)data;
-
- HANDLE NetworkEvent = gs_WSACreateEvent();
- gs_WSAEventSelect(d->fd, NetworkEvent, d->lEvent);
-
- while(socketHash[d->fd] == true)
- {
- if ((gs_WSAWaitForMultipleEvents(1, &NetworkEvent, FALSE,INFINITE, FALSE)) == WAIT_FAILED)
- {
- printf("WSAWaitForMultipleEvents failed with error %d\n", WSAGetLastError());
- return 0;
- }
- if (gs_WSAEnumNetworkEvents(d->fd ,NetworkEvent, &NetworkEvents) == SOCKET_ERROR)
- {
- printf("WSAEnumNetworkEvents failed with error %d\n", WSAGetLastError());
- return 0;
- }
-
- long flags = NetworkEvents.lNetworkEvents;
- if (flags & FD_READ)
- ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_READ);
- if (flags & FD_WRITE)
- ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_WRITE);
- if (flags & FD_OOB)
- ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_OOB);
- if (flags & FD_ACCEPT)
- ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_ACCEPT);
- if (flags & FD_CONNECT)
- ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_CONNECT);
- if (flags & FD_CLOSE)
- ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_CLOSE);
-
- }
- gs_WSAEventSelect(d->fd, NetworkEvent, 0);
- ExitThread(0);
- return 0;
+ WSANETWORKEVENTS NetworkEvents;
+ thread_data* d = (thread_data *)data;
+
+ HANDLE NetworkEvent = gs_WSACreateEvent();
+ gs_WSAEventSelect(d->fd, NetworkEvent, d->lEvent);
+
+ while(socketHash[d->fd] == true)
+ {
+ if ((gs_WSAWaitForMultipleEvents(1, &NetworkEvent, FALSE,INFINITE, FALSE)) == WAIT_FAILED)
+ {
+ printf("WSAWaitForMultipleEvents failed with error %d\n", WSAGetLastError());
+ return 0;
+ }
+ if (gs_WSAEnumNetworkEvents(d->fd ,NetworkEvent, &NetworkEvents) == SOCKET_ERROR)
+ {
+ printf("WSAEnumNetworkEvents failed with error %d\n", WSAGetLastError());
+ return 0;
+ }
+
+ long flags = NetworkEvents.lNetworkEvents;
+ if (flags & FD_READ)
+ ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_READ);
+ if (flags & FD_WRITE)
+ ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_WRITE);
+ if (flags & FD_OOB)
+ ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_OOB);
+ if (flags & FD_ACCEPT)
+ ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_ACCEPT);
+ if (flags & FD_CONNECT)
+ ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_CONNECT);
+ if (flags & FD_CLOSE)
+ ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_CLOSE);
+
+ }
+ gs_WSAEventSelect(d->fd, NetworkEvent, 0);
+ ExitThread(0);
+ return 0;
}
#endif
+// ----------------------------------------------------------------------------
+// MSW implementation of GSocketManager
+// ----------------------------------------------------------------------------
-bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop()
+class GSocketMSWManager : public GSocketManager
{
- return true;
-}
+public:
+ virtual bool OnInit();
+ virtual void OnExit();
+
+ virtual bool Init_Socket(GSocket *socket);
+ virtual void Destroy_Socket(GSocket *socket);
+
+ virtual void Install_Callback(GSocket *socket, GSocketEvent event);
+ virtual void Uninstall_Callback(GSocket *socket, GSocketEvent event);
+
+ virtual void Enable_Events(GSocket *socket);
+ virtual void Disable_Events(GSocket *socket);
+};
/* Global initializers */
-bool GSocketGUIFunctionsTableConcrete::OnInit()
+bool GSocketMSWManager::OnInit()
{
static LPCTSTR pclassname = NULL;
int i;
#else
/* On WinCE we load ws2.dll which will provide the needed functions.
*/
- gs_wsock32dll = LoadLibrary(wxT("ws2.dll"));
+ gs_wsock32dll = LoadLibrary(wxT("ws2.dll"));
if (!gs_wsock32dll)
return false;
gs_WSAEventSelect =(WSAEventSelectFunc)GetProcAddress(gs_wsock32dll,
return false;
gs_WSACreateEvent =(WSACreateEventFunc)GetProcAddress(gs_wsock32dll,
- wxT("WSACreateEvent"));
+ wxT("WSACreateEvent"));
if (!gs_WSACreateEvent)
return false;
gs_WSAWaitForMultipleEvents =(WSAWaitForMultipleEventsFunc)GetProcAddress(gs_wsock32dll,
- wxT("WSAWaitForMultipleEvents"));
+ wxT("WSAWaitForMultipleEvents"));
if (!gs_WSAWaitForMultipleEvents)
return false;
gs_WSAEnumNetworkEvents =(WSAEnumNetworkEventsFunc)GetProcAddress(gs_wsock32dll,
- wxT("WSAEnumNetworkEvents"));
+ wxT("WSAEnumNetworkEvents"));
if (!gs_WSAEnumNetworkEvents)
return false;
currSocket = 0;
#endif
-
+
return true;
}
-void GSocketGUIFunctionsTableConcrete::OnExit()
+void GSocketMSWManager::OnExit()
{
#ifdef __WXWINCE__
/* Delete the threads here */
- for(unsigned int i=0; i < currSocket; i++)
- CloseHandle(hThread[i]);
+ for(unsigned int i=0; i < currSocket; i++)
+ CloseHandle(hThread[i]);
#endif
/* Destroy internal window */
DestroyWindow(hWin);
/* Per-socket GUI initialization / cleanup */
-bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket)
+bool GSocketMSWManager::Init_Socket(GSocket *socket)
{
int i;
return true;
}
-void GSocketGUIFunctionsTableConcrete::Destroy_Socket(GSocket *socket)
+void GSocketMSWManager::Destroy_Socket(GSocket *socket)
{
/* Remove the socket from the list */
EnterCriticalSection(&critical);
- socketList[(socket->m_msgnumber - WM_USER)] = NULL;
+
+ const int msgnum = socket->m_msgnumber;
+ if ( msgnum )
+ {
+ // we need to remove any pending messages for this socket to avoid having
+ // them sent to a new socket which could reuse the same message number as
+ // soon as we destroy this one
+ MSG msg;
+ while ( ::PeekMessage(&msg, hWin, msgnum, msgnum, PM_REMOVE) )
+ ;
+
+ socketList[msgnum - WM_USER] = NULL;
+ }
+ //else: the socket has never been created successfully
+
LeaveCriticalSection(&critical);
}
+void GSocketMSWManager::Install_Callback(GSocket * WXUNUSED(socket),
+ GSocketEvent WXUNUSED(event))
+{
+ wxFAIL_MSG( _T("not used under MSW") );
+}
+
+void GSocketMSWManager::Uninstall_Callback(GSocket * WXUNUSED(socket),
+ GSocketEvent WXUNUSED(event))
+{
+ wxFAIL_MSG( _T("not used under MSW") );
+}
+
/* Windows proc for asynchronous event handling */
LRESULT CALLBACK _GSocket_Internal_WinProc(HWND hWnd,
* destroyed) and for safety, check that the m_fd field
* is what we expect it to be.
*/
- if ((socket != NULL) && (socket->m_fd == wParam))
+ if ((socket != NULL) && ((WPARAM)socket->m_fd == wParam))
{
switch WSAGETSELECTEVENT(lParam)
{
* events for internal processing, but we will only notify users
* when an appropiate callback function has been installed.
*/
-void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket)
+void GSocketMSWManager::Enable_Events(GSocket *socket)
{
- assert (socket != NULL);
-
if (socket->m_fd != INVALID_SOCKET)
{
/* We could probably just subscribe to all events regardless
* All needed parameters get passed through the thread_data structure.
*/
- thread_data* d = new thread_data;
- d->lEvent = lEvent;
- d->hEvtWin = hWin;
- d->msgnumber = socket->m_msgnumber;
- d->fd = socket->m_fd;
- socketHash[socket->m_fd] = true;
- hThread[currSocket++] = CreateThread(NULL, 0, &SocketThread,(LPVOID)d, 0, NULL);
+ thread_data* d = new thread_data;
+ d->lEvent = lEvent;
+ d->hEvtWin = hWin;
+ d->msgnumber = socket->m_msgnumber;
+ d->fd = socket->m_fd;
+ socketHash[socket->m_fd] = true;
+ hThread[currSocket++] = CreateThread(NULL, 0, &SocketThread,(LPVOID)d, 0, NULL);
#endif
}
}
/* _GSocket_Disable_Events:
* Disable event notifications (when shutdowning the socket)
*/
-void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket)
+void GSocketMSWManager::Disable_Events(GSocket *socket)
{
- assert (socket != NULL);
-
if (socket->m_fd != INVALID_SOCKET)
{
#ifndef __WXWINCE__
gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, 0);
#else
- //Destroy the thread
- socketHash[socket->m_fd] = false;
+ //Destroy the thread
+ socketHash[socket->m_fd] = false;
#endif
}
}
-#else /* !wxUSE_SOCKETS */
-
-/*
- * Translation unit shouldn't be empty, so include this typedef to make the
- * compiler (VC++ 6.0, for example) happy
- */
-typedef void (*wxDummy)();
+// set the wxBase variable to point to our GSocketManager implementation
+//
+// see comments in wx/msw/apptbase.h for the explanation of why do we do it
+// like this
+static struct ManagerSetter
+{
+ ManagerSetter()
+ {
+ static GSocketMSWManager s_manager;
+ wxAppTraits::SetDefaultSocketManager(&s_manager);
+ }
+} gs_managerSetter;
-#endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */
+#endif // wxUSE_SOCKETS
projects / wxWidgets.git / blobdiff