src/x11/gsockx11.cpp

   1 /* -------------------------------------------------------------------------
   2  * Project: GSocket (Generic Socket) for WX
   3  * Name:    gsockmot.c
   4  * Purpose: GSocket: X11 part
   5  * Licence: The wxWindows licence
   6  * CVSID:   $Id$
   7  * ------------------------------------------------------------------------- */
   8
   9 #include "wx/setup.h"
  10
  11 #if wxUSE_SOCKETS
  12
  13 #include <stdlib.h>
  14 #include "wx/gsocket.h"
  15 #include "wx/unix/gsockunx.h"
  16
  17 /*
  18  * FIXME: have these in a common header instead of being repeated
  19  * in evtloop.cpp and gsockx11.c
  20  */
  21
  22 typedef void (*wxSocketCallback) (int fd, void* data);
  23
  24 typedef enum
  25 { wxSocketTableInput, wxSocketTableOutput } wxSocketTableType ;
  26
  27 extern "C" void wxRegisterSocketCallback(int fd, wxSocketTableType socketType, wxSocketCallback cback, void* data);
  28 extern "C" void wxUnregisterSocketCallback(int fd, wxSocketTableType socketType);
  29
  30
  31 static void _GSocket_X11_Input(int *fid, void* data)
  32 {
  33   GSocket *socket = (GSocket *)data;
  34
  35   socket->Detected_Read();
  36 }
  37
  38 static void _GSocket_X11_Output(int *fid, void* data)
  39 {
  40   GSocket *socket = (GSocket *)data;
  41
  42   socket->Detected_Write();
  43 }
  44
  45 bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop()
  46 {   return true; }
  47
  48 bool GSocketGUIFunctionsTableConcrete::OnInit(void)
  49 {
  50     return 1;
  51 }
  52
  53 void GSocketGUIFunctionsTableConcrete::OnExit(void)
  54 {
  55 }
  56
  57 bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket)
  58 {
  59   int *m_id;
  60
  61   socket->m_gui_dependent = (char *)malloc(sizeof(int)*2);
  62   m_id = (int *)(socket->m_gui_dependent);
  63
  64   m_id[0] = -1;
  65   m_id[1] = -1;
  66
  67   return true;
  68 }
  69
  70 void GSocketGUIFunctionsTableConcrete::Destroy_Socket(GSocket *socket)
  71 {
  72   free(socket->m_gui_dependent);
  73 }
  74
  75 void GSocketGUIFunctionsTableConcrete::Install_Callback(GSocket *socket, GSocketEvent event)
  76 {
  77   int *m_id = (int *)(socket->m_gui_dependent);
  78   int c;
  79
  80   if (socket->m_fd == -1)
  81     return;
  82
  83   switch (event)
  84   {
  85     case GSOCK_LOST:       /* fall-through */
  86     case GSOCK_INPUT:      c = 0; break;
  87     case GSOCK_OUTPUT:     c = 1; break;
  88     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
  89     default: return;
  90   }
  91
  92 #if 0
  93   if (m_id[c] != -1)
  94       XtRemoveInput(m_id[c]);
  95 #endif /* 0 */
  96
  97   if (c == 0)
  98   {
  99       m_id[0] = socket->m_fd;
 100
 101       wxRegisterSocketCallback(socket->m_fd, wxSocketTableInput,
 102                                (wxSocketCallback) _GSocket_X11_Input, (void*) socket);
 103   }
 104   else
 105   {
 106       m_id[1] = socket->m_fd;
 107
 108       wxRegisterSocketCallback(socket->m_fd, wxSocketTableOutput,
 109                                (wxSocketCallback) _GSocket_X11_Output, (void*) socket);
 110   }
 111 }
 112
 113 void GSocketGUIFunctionsTableConcrete::Uninstall_Callback(GSocket *socket, GSocketEvent event)
 114 {
 115   int *m_id = (int *)(socket->m_gui_dependent);
 116   int c;
 117
 118   switch (event)
 119   {
 120     case GSOCK_LOST:       /* fall-through */
 121     case GSOCK_INPUT:      c = 0; break;
 122     case GSOCK_OUTPUT:     c = 1; break;
 123     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
 124     default: return;
 125   }
 126
 127   if (m_id[c] != -1)
 128   {
 129       if (c == 0)
 130           wxUnregisterSocketCallback(m_id[c], wxSocketTableInput);
 131       else
 132           wxUnregisterSocketCallback(m_id[c], wxSocketTableOutput);
 133   }
 134
 135   m_id[c] = -1;
 136 }
 137
 138 void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket)
 139 {
 140   Install_Callback(socket, GSOCK_INPUT);
 141   Install_Callback(socket, GSOCK_OUTPUT);
 142 }
 143
 144 void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket)
 145 {
 146   Uninstall_Callback(socket, GSOCK_INPUT);
 147   Uninstall_Callback(socket, GSOCK_OUTPUT);
 148 }
 149
 150 #else /* !wxUSE_SOCKETS */
 151
 152 /* some compilers don't like having empty source files */
 153 static int wxDummyGsockVar = 0;
 154
 155 #endif /* wxUSE_SOCKETS/!wxUSE_SOCKETS */