X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ebb97a41da74f94885e67f502619dcd6a9f9d272..4e5c6c33c530dc4b00cfcd58b6a0dbcae7e6e9d1:/src/msw/gsockmsw.cpp diff --git a/src/msw/gsockmsw.cpp b/src/msw/gsockmsw.cpp index 937b39039b..6c8f3401a0 100644 --- a/src/msw/gsockmsw.cpp +++ b/src/msw/gsockmsw.cpp @@ -15,11 +15,13 @@ #endif /* - * TODO: for WinCE we need to replace WSAAsyncSelect + * DONE: for WinCE we need to replace WSAAsyncSelect * (Windows message-based notification of network events for a socket) * with another mechanism. - * We may need to have a separate thread that polls for socket events - * using select() and sends a message to the main thread. + * As WSAAsyncSelect is not present on WinCE, it now uses + * WSACreateEvent, WSAEventSelect, WSAWaitForMultipleEvents and WSAEnumNetworkEvents. + * When enabling eventhandling for a socket a new thread it created that keeps track of the events + * and posts a messageto the hidden window to use the standard message loop. */ /* including rasasync.h (included from windows.h itself included from @@ -61,7 +63,7 @@ extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance(void); #define INSTANCE wxGetInstance() -#else +#else /* __GSOCKET_STANDALONE__ */ #include "gsockmsw.h" #include "gsocket.h" @@ -70,9 +72,10 @@ extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance(void); * be available and it must contain the app's instance * handle. */ +extern HINSTANCE hInst; #define INSTANCE hInst -#endif /* __GSOCKET_STANDALONE__ */ +#endif /* !__GSOCKET_STANDALONE__/__GSOCKET_STANDALONE__ */ #ifndef __WXWINCE__ #include @@ -110,60 +113,179 @@ wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc); #error "MAXSOCKETS is too big!" #endif +#ifndef __WXWINCE__ typedef int (PASCAL *WSAAsyncSelectFunc)(SOCKET,HWND,u_int,long); +#else +/* Typedef the needed function prototypes and the WSANETWORKEVENTS structure +*/ +typedef struct _WSANETWORKEVENTS { + long lNetworkEvents; + int iErrorCode[10]; +} WSANETWORKEVENTS, FAR * LPWSANETWORKEVENTS; +typedef HANDLE (PASCAL *WSACreateEventFunc)(void); +typedef int (PASCAL *WSAEventSelectFunc)(SOCKET,HANDLE,long); +typedef int (PASCAL *WSAWaitForMultipleEventsFunc)(long,HANDLE,BOOL,long,BOOL); +typedef int (PASCAL *WSAEnumNetworkEventsFunc)(SOCKET,HANDLE,LPWSANETWORKEVENTS); +#endif //__WXWINCE__ LRESULT CALLBACK _GSocket_Internal_WinProc(HWND, UINT, WPARAM, LPARAM); /* Global variables */ -extern HINSTANCE INSTANCE; static HWND hWin; static CRITICAL_SECTION critical; static GSocket* socketList[MAXSOCKETS]; static int firstAvailable; + +#ifndef __WXWINCE__ static WSAAsyncSelectFunc gs_WSAAsyncSelect = NULL; +#else +/* Setup WinCE specific stuff +*/ +static socket_running; +static unsigned int currSocket; +HANDLE hThread[MAXSOCKETS]; +static WSACreateEventFunc gs_WSACreateEvent = NULL; +static WSAEventSelectFunc gs_WSAEventSelect = NULL; +static WSAWaitForMultipleEventsFunc gs_WSAWaitForMultipleEvents = NULL; +static WSAEnumNetworkEventsFunc gs_WSAEnumNetworkEvents = NULL; +/* 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; +}thread_data; +#endif + static HMODULE gs_wsock32dll = 0; + +#ifdef __WXWINCE__ +/* This thread handles socket events on WinCE using WSAEventSelect() as WSAAsyncSelect is not supported. +* When an event occures for the socket, it is checked what kind of event happend and the correct message gets posted +* so that the hidden window can handle it as it would in other MSW builds. +*/ +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(socket_running) + { + 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 + + bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop() -{ return true; } +{ + return true; +} /* Global initializers */ bool GSocketGUIFunctionsTableConcrete::OnInit() { - static LPCTSTR pclassname = NULL; - int i; + static LPCTSTR pclassname = NULL; + int i; - /* Create internal window for event notifications */ - hWin = wxCreateHiddenWindow(&pclassname, CLASSNAME, _GSocket_Internal_WinProc); - if (!hWin) - return false; + /* Create internal window for event notifications */ + hWin = wxCreateHiddenWindow(&pclassname, CLASSNAME, _GSocket_Internal_WinProc); + if (!hWin) + return false; - /* Initialize socket list */ - InitializeCriticalSection(&critical); + /* Initialize socket list */ + InitializeCriticalSection(&critical); - for (i = 0; i < MAXSOCKETS; i++) - { - socketList[i] = NULL; - } - firstAvailable = 0; + for (i = 0; i < MAXSOCKETS; i++) + { + socketList[i] = NULL; + } + firstAvailable = 0; - /* Load WSAAsyncSelect from wsock32.dll (we don't link against it - statically to avoid dependency on wsock32.dll for apps that don't use - sockets): */ - gs_wsock32dll = LoadLibraryA("wsock32.dll"); - if (!gs_wsock32dll) - return false; - gs_WSAAsyncSelect =(WSAAsyncSelectFunc)GetProcAddress(gs_wsock32dll, - "WSAAsyncSelect"); - if (!gs_WSAAsyncSelect) - return false; + /* Load WSAAsyncSelect from wsock32.dll (we don't link against it + statically to avoid dependency on wsock32.dll for apps that don't use + sockets): */ +#ifndef __WXWINCE__ + gs_wsock32dll = LoadLibrary(wxT("wsock32.dll")); + if (!gs_wsock32dll) + return false; + gs_WSAAsyncSelect =(WSAAsyncSelectFunc)GetProcAddress(gs_wsock32dll, + "WSAAsyncSelect"); + if (!gs_WSAAsyncSelect) + return false; +#else +/* On WinCE we load ws2.dll which will provide the needed functions. +*/ + gs_wsock32dll = LoadLibrary(wxT("ws2.dll")); + if (!gs_wsock32dll) + return false; + gs_WSAEventSelect =(WSAEventSelectFunc)GetProcAddress(gs_wsock32dll, + wxT("WSAEventSelect")); + if (!gs_WSAEventSelect) + return false; + + gs_WSACreateEvent =(WSACreateEventFunc)GetProcAddress(gs_wsock32dll, + wxT("WSACreateEvent")); + if (!gs_WSACreateEvent) + return false; + + gs_WSAWaitForMultipleEvents =(WSAWaitForMultipleEventsFunc)GetProcAddress(gs_wsock32dll, + wxT("WSAWaitForMultipleEvents")); + if (!gs_WSAWaitForMultipleEvents) + return false; + + gs_WSAEnumNetworkEvents =(WSAEnumNetworkEventsFunc)GetProcAddress(gs_wsock32dll, + wxT("WSAEnumNetworkEvents")); + if (!gs_WSAEnumNetworkEvents) + return false; + + currSocket = 0; +#endif - return true; + return true; } void GSocketGUIFunctionsTableConcrete::OnExit() { +#ifdef __WXWINCE__ +/* Delete the threads here */ + for(unsigned int i=0; i < currSocket; i++) + CloseHandle(hThread[i]); +#endif /* Destroy internal window */ DestroyWindow(hWin); UnregisterClass(CLASSNAME, INSTANCE); @@ -303,8 +425,21 @@ void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket) */ long lEvent = socket->m_server? FD_ACCEPT : (FD_READ | FD_WRITE | FD_CONNECT | FD_CLOSE); - +#ifndef __WXWINCE__ gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, lEvent); +#else +/* +* WinCE creates a thread for socket event handling. +* All needed parameters get passed through the thread_data structure. +*/ + socket_running = true; + thread_data* d = new thread_data; + d->lEvent = lEvent; + d->hEvtWin = hWin; + d->msgnumber = socket->m_msgnumber; + d->fd = socket->m_fd; + hThread[currSocket++] = CreateThread(NULL, 0, &SocketThread,(LPVOID)d, 0, NULL); +#endif } } @@ -317,7 +452,13 @@ void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket) if (socket->m_fd != INVALID_SOCKET) { +#ifndef __WXWINCE__ gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, 0); +#else + //Destroy the thread + //TODO: This needs to be changed, maybe using another global event that could be triggered. + socket_running = false; +#endif } }