X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b7ceceb1861d7583c0a544c608fcf583367e6e92..84bdb0d8d7d7fe3d7cd6a2e5f50ee247ce2af5df:/src/msw/gsockmsw.cpp diff --git a/src/msw/gsockmsw.cpp b/src/msw/gsockmsw.cpp index a51169eaf0..4fb65b9106 100644 --- a/src/msw/gsockmsw.cpp +++ b/src/msw/gsockmsw.cpp @@ -1,22 +1,27 @@ /* ------------------------------------------------------------------------- * Project: GSocket (Generic Socket) - * Name: gsockmsw.c + * Name: gsockmsw.cpp * Author: Guillermo Rodriguez Garcia * Purpose: GSocket GUI-specific MSW code * CVSID: $Id$ * ------------------------------------------------------------------------- */ +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + +#ifdef __BORLANDC__ + #pragma hdrstop +#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. - */ - -/* - * PLEASE don't put C++ comments here - this is a C source file. + * 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 @@ -24,7 +29,7 @@ * RPCNOTIFICATION_ROUTINE */ #ifdef _MSC_VER -# pragma warning(disable:4115) /* named type definition in parentheses */ +# pragma warning(disable:4115) /* named type definition in parentheses */ #endif /* This needs to be before the wx/defs/h inclusion @@ -32,7 +37,15 @@ */ #ifdef __WXWINCE__ -#include + /* windows.h results in tons of warnings at max warning level */ +# ifdef _MSC_VER +# pragma warning(push, 1) +# endif +# include +# ifdef _MSC_VER +# pragma warning(pop) +# pragma warning(disable:4514) +# endif #endif #ifndef __GSOCKET_STANDALONE__ @@ -47,21 +60,22 @@ #include "wx/msw/gsockmsw.h" #include "wx/gsocket.h" -HINSTANCE wxGetInstance(void); +extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance(void); #define INSTANCE wxGetInstance() -#else +#else /* __GSOCKET_STANDALONE__ */ #include "gsockmsw.h" #include "gsocket.h" -/* If not using wxWindows, a global var called hInst must +/* 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__ */ +#endif /* !__GSOCKET_STANDALONE__/__GSOCKET_STANDALONE__ */ #ifndef __WXWINCE__ #include @@ -69,6 +83,8 @@ HINSTANCE wxGetInstance(void); #define assert(x) #include #include "wx/msw/wince/net.h" +#include +WX_DECLARE_HASH_MAP(int,bool,wxIntegerHash,wxIntegerEqual,SocketHash); #endif #include @@ -86,7 +102,7 @@ HINSTANCE wxGetInstance(void); #define CLASSNAME TEXT("_GSocket_Internal_Window_Class") /* implemented in utils.cpp */ -extern WXDLLIMPEXP_BASE HWND +extern "C" WXDLLIMPEXP_BASE HWND wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc); /* Maximum number of different GSocket objects at a given time. @@ -99,18 +115,109 @@ 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 +static SocketHash socketHash; +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(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 + + +bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop() +{ + return true; +} + /* Global initializers */ -int _GSocket_GUI_Init(void) +bool GSocketGUIFunctionsTableConcrete::OnInit() { static LPCTSTR pclassname = NULL; int i; @@ -118,7 +225,7 @@ int _GSocket_GUI_Init(void) /* Create internal window for event notifications */ hWin = wxCreateHiddenWindow(&pclassname, CLASSNAME, _GSocket_Internal_WinProc); if (!hWin) - return FALSE; + return false; /* Initialize socket list */ InitializeCriticalSection(&critical); @@ -129,22 +236,74 @@ int _GSocket_GUI_Init(void) } firstAvailable = 0; - return TRUE; + /* 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; } -void _GSocket_GUI_Cleanup(void) +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); + /* Unlock wsock32.dll */ + if (gs_wsock32dll) + { + FreeLibrary(gs_wsock32dll); + gs_wsock32dll = 0; + } + /* Delete critical section */ DeleteCriticalSection(&critical); } /* Per-socket GUI initialization / cleanup */ -int _GSocket_GUI_Init_Socket(GSocket *socket) +bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket) { int i; @@ -159,7 +318,7 @@ int _GSocket_GUI_Init_Socket(GSocket *socket) if (i == firstAvailable) /* abort! */ { LeaveCriticalSection(&critical); - return FALSE; + return false; } } socketList[i] = socket; @@ -168,10 +327,10 @@ int _GSocket_GUI_Init_Socket(GSocket *socket) LeaveCriticalSection(&critical); - return TRUE; + return true; } -void _GSocket_GUI_Destroy_Socket(GSocket *socket) +void GSocketGUIFunctionsTableConcrete::Destroy_Socket(GSocket *socket) { /* Remove the socket from the list */ EnterCriticalSection(&critical); @@ -255,7 +414,7 @@ LRESULT CALLBACK _GSocket_Internal_WinProc(HWND hWnd, * events for internal processing, but we will only notify users * when an appropiate callback function has been installed. */ -void _GSocket_Enable_Events(GSocket *socket) +void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket) { assert (socket != NULL); @@ -266,21 +425,40 @@ void _GSocket_Enable_Events(GSocket *socket) */ long lEvent = socket->m_server? FD_ACCEPT : (FD_READ | FD_WRITE | FD_CONNECT | FD_CLOSE); - - WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, lEvent); +#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. +*/ + + 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 _GSocket_Disable_Events(GSocket *socket) +void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket) { assert (socket != NULL); if (socket->m_fd != INVALID_SOCKET) { - WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, 0); +#ifndef __WXWINCE__ + gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, 0); +#else + //Destroy the thread + socketHash[socket->m_fd] = false; +#endif } }