X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dbfb61b3a4a26996b936fb9384b6100d8d42b135..ff55f8377ba8965bee36d1221501a3868da952e9:/src/msw/gsockmsw.cpp diff --git a/src/msw/gsockmsw.cpp b/src/msw/gsockmsw.cpp index 4035e4707e..3ca8b48349 100644 --- a/src/msw/gsockmsw.cpp +++ b/src/msw/gsockmsw.cpp @@ -1,9 +1,11 @@ /* ------------------------------------------------------------------------- - * Project: GSocket (Generic Socket) - * Name: gsockmsw.cpp - * Author: Guillermo Rodriguez Garcia - * Purpose: GSocket GUI-specific MSW code - * CVSID: $Id$ + * Project: GSocket (Generic Socket) + * Name: src/msw/gsockmsw.cpp + * Copyright: (c) Guilhem Lavaux + * Licence: wxWindows Licence + * Author: Guillermo Rodriguez Garcia + * Purpose: GSocket GUI-specific MSW code + * CVSID: $Id$ * ------------------------------------------------------------------------- */ @@ -14,6 +16,8 @@ #pragma hdrstop #endif +#if wxUSE_SOCKETS + /* * DONE: for WinCE we need to replace WSAAsyncSelect * (Windows message-based notification of network events for a socket) @@ -32,57 +36,20 @@ # 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 -# 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 - -#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__ */ +extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance(); +#define INSTANCE wxGetInstance() -#ifndef __WXWINCE__ -#include -#else -#define assert(x) +#ifdef __WXWINCE__ #include #include "wx/msw/wince/net.h" +#include "wx/hashmap.h" +WX_DECLARE_HASH_MAP(int,bool,wxIntegerHash,wxIntegerEqual,SocketHash); #endif #include @@ -122,7 +89,7 @@ typedef struct _WSANETWORKEVENTS { 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); @@ -132,7 +99,6 @@ 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]; @@ -141,9 +107,7 @@ static int firstAvailable; #ifndef __WXWINCE__ static WSAAsyncSelectFunc gs_WSAAsyncSelect = NULL; #else -/* Setup WinCE specific stuff -*/ -static socket_running; +static SocketHash socketHash; static unsigned int currSocket; HANDLE hThread[MAXSOCKETS]; static WSACreateEventFunc gs_WSACreateEvent = NULL; @@ -153,10 +117,10 @@ 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; + HWND hEvtWin; + unsigned long msgnumber; + unsigned long fd; + unsigned long lEvent; }thread_data; #endif @@ -170,53 +134,69 @@ static HMODULE gs_wsock32dll = 0; */ 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; + 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 +// ---------------------------------------------------------------------------- + +class GSocketMSWManager : public GSocketManager +{ +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); -bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop() -{ return true; } + 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; @@ -243,13 +223,13 @@ bool GSocketGUIFunctionsTableConcrete::OnInit() if (!gs_wsock32dll) return false; gs_WSAAsyncSelect =(WSAAsyncSelectFunc)GetProcAddress(gs_wsock32dll, - wxT("WSAAsyncSelect")); + "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")); + gs_wsock32dll = LoadLibrary(wxT("ws2.dll")); if (!gs_wsock32dll) return false; gs_WSAEventSelect =(WSAEventSelectFunc)GetProcAddress(gs_wsock32dll, @@ -258,32 +238,32 @@ bool GSocketGUIFunctionsTableConcrete::OnInit() 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]); +/* Delete the threads here */ + for(unsigned int i=0; i < currSocket; i++) + CloseHandle(hThread[i]); #endif /* Destroy internal window */ DestroyWindow(hWin); @@ -302,7 +282,7 @@ void GSocketGUIFunctionsTableConcrete::OnExit() /* Per-socket GUI initialization / cleanup */ -bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket) +bool GSocketMSWManager::Init_Socket(GSocket *socket) { int i; @@ -329,14 +309,40 @@ bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket) 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, @@ -361,7 +367,7 @@ 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) { @@ -413,10 +419,8 @@ 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 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 @@ -429,15 +433,16 @@ void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket) #else /* * WinCE creates a thread for socket event handling. -* All needed parameters get passed through the thread_data structure. +* 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); + + 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 } } @@ -445,28 +450,30 @@ void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket) /* _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 - //TODO: This needs to be changed, maybe using another global event that could be triggered. - socket_running = 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