X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/cd604d60721d274775f20bb280cd068b746e6c73..d3e780ecdf69233c872d51216eedbc64a1b6db25:/src/msw/gsocket.c diff --git a/src/msw/gsocket.c b/src/msw/gsocket.c index 26388159d7..9eb8d69513 100644 --- a/src/msw/gsocket.c +++ b/src/msw/gsocket.c @@ -3,6 +3,7 @@ * Name: gsocket.c * Author: Guillermo Rodriguez Garcia * Purpose: GSocket main MSW file + * Licence: The wxWindows licence * CVSID: $Id$ * ------------------------------------------------------------------------- */ @@ -26,10 +27,11 @@ # pragma warning(disable:4100) #endif /* _MSC_VER */ +#include #ifndef __GSOCKET_STANDALONE__ -# include "wx/defs.h" -# include "wx/setup.h" +# include "wx/platform.h" +# include "wx/setup.h" #endif #if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) @@ -42,29 +44,83 @@ # include "gsocket.h" #endif /* __GSOCKET_STANDALONE__ */ -/* Redefine some GUI-only functions to do nothing in console mode */ -#if defined(wxUSE_GUI) && !wxUSE_GUI -# define _GSocket_GUI_Init(socket) (1) -# define _GSocket_GUI_Destroy(socket) -# define _GSocket_Enable_Events(socket) -# define _GSocket_Disable_Events(socket) -#endif /* wxUSE_GUI */ - - +#ifndef __WXWINCE__ #include +#else +#define assert(x) +#ifndef isdigit +#define isdigit(x) (x > 47 && x < 58) +#endif +#include "wx/msw/wince/net.h" +#endif + #include #include #include #include #include -#include - /* if we use configure for MSW SOCKLEN_T will be already defined */ #ifndef SOCKLEN_T # define SOCKLEN_T int #endif +/* Table of GUI-related functions. We must call them indirectly because + * of wxBase and GUI separation: */ + +static struct GSocketGUIFunctionsTable *gs_gui_functions; + +#define USE_GUI() (gs_gui_functions != NULL) + +/* Define macros to simplify indirection: */ +#define _GSocket_GUI_Init() \ + if (gs_gui_functions) gs_gui_functions->GUI_Init() +#define _GSocket_GUI_Cleanup() \ + if (gs_gui_functions) gs_gui_functions->GUI_Cleanup() +#define _GSocket_GUI_Init_Socket(socket) \ + (gs_gui_functions ? gs_gui_functions->GUI_Init_Socket(socket) : 1) +#define _GSocket_GUI_Destroy_Socket(socket) \ + if (gs_gui_functions) gs_gui_functions->GUI_Destroy_Socket(socket) +#define _GSocket_Enable_Events(socket) \ + if (gs_gui_functions) gs_gui_functions->Enable_Events(socket) +#define _GSocket_Disable_Events(socket) \ + if (gs_gui_functions) gs_gui_functions->Disable_Events(socket) +#define _GSocket_Install_Callback(socket, event) \ + if (gs_gui_functions) gs_gui_functions->Install_Callback(socket, event) +#define _GSocket_Uninstall_Callback(socket, event) \ + if (gs_gui_functions) gs_gui_functions->Uninstall_Callback(socket, event) + +/* Global initialisers */ + +void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc) +{ + gs_gui_functions = guifunc; +} + +int GSocket_Init(void) +{ + WSADATA wsaData; + + if (gs_gui_functions) + { + if ( !gs_gui_functions->GUI_Init() ) + return 0; + } + + /* Initialize WinSocket */ + return (WSAStartup((1 << 8) | 1, &wsaData) == 0); +} + +void GSocket_Cleanup(void) +{ + if (gs_gui_functions) + { + gs_gui_functions->GUI_Cleanup(); + } + + /* Cleanup WinSocket */ + WSACleanup(); +} /* Constructors / Destructors for GSocket */ @@ -93,7 +149,7 @@ GSocket *GSocket_new(void) socket->m_establishing = FALSE; /* Per-socket GUI-specific initialization */ - success = _GSocket_GUI_Init(socket); + success = _GSocket_GUI_Init_Socket(socket); if (!success) { free(socket); @@ -103,12 +159,19 @@ GSocket *GSocket_new(void) return socket; } +void GSocket_close(GSocket *socket) +{ + _GSocket_Disable_Events(socket); + closesocket(socket->m_fd); + socket->m_fd = INVALID_SOCKET; +} + void GSocket_destroy(GSocket *socket) { assert(socket != NULL); /* Per-socket GUI-specific cleanup */ - _GSocket_GUI_Destroy(socket); + _GSocket_GUI_Destroy_Socket(socket); /* Check that the socket is really shutdowned */ if (socket->m_fd != INVALID_SOCKET) @@ -139,8 +202,7 @@ void GSocket_Shutdown(GSocket *socket) if (socket->m_fd != INVALID_SOCKET) { shutdown(socket->m_fd, 2); - closesocket(socket->m_fd); - socket->m_fd = INVALID_SOCKET; + GSocket_close(socket); } /* Disable GUI callbacks */ @@ -148,7 +210,6 @@ void GSocket_Shutdown(GSocket *socket) socket->m_cbacks[evt] = NULL; socket->m_detected = GSOCK_LOST_FLAG; - _GSocket_Disable_Events(socket); } /* Address handling */ @@ -315,6 +376,11 @@ GSocketError GSocket_SetServer(GSocket *sck) ioctlsocket(sck->m_fd, FIONBIO, (u_long FAR *) &arg); _GSocket_Enable_Events(sck); + /* allow a socket to re-bind if the socket is in the TIME_WAIT + state after being previously closed. + */ + setsockopt(sck->m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(u_long)); + /* Bind to the local address, * retrieve the actual address bound, * and listen up to 5 connections. @@ -325,8 +391,7 @@ GSocketError GSocket_SetServer(GSocket *sck) (SOCKLEN_T *)&sck->m_local->m_len) != 0) || (listen(sck->m_fd, 5) != 0)) { - closesocket(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -508,8 +573,7 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) if (err != GSOCK_NOERROR) { - closesocket(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); /* sck->m_error is set in _GSocket_Connect_Timeout */ } @@ -532,8 +596,7 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) /* If connect failed with an error other than EWOULDBLOCK, * then the call to GSocket_Connect() has failed. */ - closesocket(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -597,8 +660,7 @@ GSocketError GSocket_SetNonOriented(GSocket *sck) sck->m_local->m_addr, (SOCKLEN_T *)&sck->m_local->m_len) != 0)) { - closesocket(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -696,70 +758,119 @@ int GSocket_Write(GSocket *socket, const char *buffer, int size) */ GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags) { -#if defined(wxUSE_GUI) && !wxUSE_GUI + if (!USE_GUI()) + { + GSocketEventFlags result = 0; + fd_set readfds; + fd_set writefds; + fd_set exceptfds; + + assert(socket != NULL); - GSocketEventFlags result = 0; - fd_set readfds; - fd_set writefds; - fd_set exceptfds; - static const struct timeval tv = { 0, 0 }; + FD_ZERO(&readfds); + FD_ZERO(&writefds); + FD_ZERO(&exceptfds); + FD_SET(socket->m_fd, &readfds); + if (flags & GSOCK_OUTPUT_FLAG) + FD_SET(socket->m_fd, &writefds); + FD_SET(socket->m_fd, &exceptfds); - assert(socket != NULL); + /* Check 'sticky' CONNECTION flag first */ + result |= (GSOCK_CONNECTION_FLAG & socket->m_detected); - FD_ZERO(&readfds); - FD_ZERO(&writefds); - FD_ZERO(&exceptfds); - FD_SET(socket->m_fd, &readfds); - FD_SET(socket->m_fd, &writefds); - FD_SET(socket->m_fd, &exceptfds); - - /* Check known state first */ - result |= (GSOCK_CONNECTION_FLAG & socket->m_detected & flags); - result |= (GSOCK_LOST_FLAG & socket->m_detected & flags); + /* If we have already detected a LOST event, then don't try + * to do any further processing. + */ + if ((socket->m_detected & GSOCK_LOST_FLAG) != 0) + { + socket->m_establishing = FALSE; - /* Try select now */ - if (select(socket->m_fd + 1, &readfds, &writefds, &exceptfds, &tv) <= 0) - return result; + return (GSOCK_LOST_FLAG & flags); + } - /* Check for readability */ - if (FD_ISSET(socket->m_fd, &readfds)) - { - /* Assume that closure of the socket is always reported via exceptfds */ - if (socket->m_server && socket->m_stream) - result |= (GSOCK_CONNECTION_FLAG & flags); - else - result |= (GSOCK_INPUT_FLAG & flags); - } + /* Try select now */ + if (select(socket->m_fd + 1, &readfds, &writefds, &exceptfds, + &socket->m_timeout) <= 0) + { + /* What to do here? */ + return (result & flags); + } - /* Check for writability */ - if (FD_ISSET(socket->m_fd, &writefds)) - { - if (socket->m_establishing && !socket->m_server) + /* Check for readability */ + if (FD_ISSET(socket->m_fd, &readfds)) { - result |= (GSOCK_CONNECTION_FLAG & flags); - socket->m_establishing = FALSE; - socket->m_detected |= GSOCK_CONNECTION_FLAG; + char c; + + if (!socket->m_stream || recv(socket->m_fd, &c, 1, MSG_PEEK) > 0) + { + result |= GSOCK_INPUT_FLAG; + } + else + { + if (socket->m_server && socket->m_stream) + { + result |= GSOCK_CONNECTION_FLAG; + socket->m_detected |= GSOCK_CONNECTION_FLAG; + } + else + { + socket->m_detected = GSOCK_LOST_FLAG; + socket->m_establishing = FALSE; + + /* LOST event: Abort any further processing */ + return (GSOCK_LOST_FLAG & flags); + } + } } - else - result |= (GSOCK_OUTPUT_FLAG & flags); - } - /* Check for exceptions and errors */ - if (FD_ISSET(socket->m_fd, &exceptfds)) - { - result |= (GSOCK_LOST_FLAG & flags); - socket->m_establishing = FALSE; - socket->m_detected = GSOCK_LOST_FLAG; - } + /* Check for writability */ + if (FD_ISSET(socket->m_fd, &writefds)) + { + if (socket->m_establishing && !socket->m_server) + { + int error; + SOCKLEN_T len = sizeof(error); - return result; + socket->m_establishing = FALSE; -#else + getsockopt(socket->m_fd, SOL_SOCKET, SO_ERROR, (void*)&error, &len); - assert(socket != NULL); - return flags & socket->m_detected; + if (error) + { + socket->m_detected = GSOCK_LOST_FLAG; + + /* LOST event: Abort any further processing */ + return (GSOCK_LOST_FLAG & flags); + } + else + { + result |= GSOCK_CONNECTION_FLAG; + socket->m_detected |= GSOCK_CONNECTION_FLAG; + } + } + else + { + result |= GSOCK_OUTPUT_FLAG; + } + } + + /* Check for exceptions and errors (is this useful in Unices?) */ + if (FD_ISSET(socket->m_fd, &exceptfds)) + { + socket->m_establishing = FALSE; + socket->m_detected = GSOCK_LOST_FLAG; -#endif /* !wxUSE_GUI */ + /* LOST event: Abort any further processing */ + return (GSOCK_LOST_FLAG & flags); + } + + return (result & flags); + } + else /* USE_GUI() */ + { + assert(socket != NULL); + return flags & socket->m_detected; + } } /* Attributes */ @@ -792,7 +903,7 @@ void GSocket_SetTimeout(GSocket *socket, unsigned long millis) * operations do not clear this back to GSOCK_NOERROR, so use it only * after an error. */ -GSocketError WXDLLEXPORT GSocket_GetError(GSocket *socket) +GSocketError GSocket_GetError(GSocket *socket) { assert(socket != NULL); @@ -1359,6 +1470,10 @@ GSocketError _GAddress_Init_UNIX(GAddress *address) GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path) { +#if defined(__BORLANDC__) + /* prevents unused variable message in Borland */ + (void)path; +#endif assert (address != NULL); address->m_error = GSOCK_INVADDR; return GSOCK_INVADDR; @@ -1366,6 +1481,11 @@ GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path) GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf) { +#if defined(__BORLANDC__) + /* prevents unused variable message in Borland */ + (void)path; + (void)sbuf; +#endif assert (address != NULL); address->m_error = GSOCK_INVADDR; return GSOCK_INVADDR; @@ -1380,3 +1500,4 @@ GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf) typedef void (*wxDummy)(); #endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */ +