src/gtk/gsockgtk.cpp

   1 /* -------------------------------------------------------------------------
   2  * Project: GSocket (Generic Socket) for WX
   3  * Name:    src/gtk/gsockgtk.cpp
   4  * Purpose: GSocket: GTK part
   5  * Licence: The wxWindows licence
   6  * CVSID:   $Id$
   7  * -------------------------------------------------------------------------
   8  */
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if wxUSE_SOCKETS
  13
  14 #include <assert.h>
  15 #include <stdlib.h>
  16 #include <stdio.h>
  17
  18 #include <gdk/gdk.h>
  19 #include <glib.h>
  20
  21 #include "wx/gsocket.h"
  22 #include "wx/unix/gsockunx.h"
  23
  24
  25 extern "C" {
  26 static
  27 void _GSocket_GDK_Input(gpointer data,
  28                         gint source,
  29                         GdkInputCondition condition)
  30 {
  31   GSocket *socket = (GSocket *)data;
  32
  33   if (condition & GDK_INPUT_READ)
  34     socket->Detected_Read();
  35   if (condition & GDK_INPUT_WRITE)
  36     socket->Detected_Write();
  37 }
  38 }
  39
  40 bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop()
  41 {   return true; }
  42
  43 bool GSocketGUIFunctionsTableConcrete::OnInit(void)
  44 {
  45     return 1;
  46 }
  47
  48 void GSocketGUIFunctionsTableConcrete::OnExit(void)
  49 {
  50 }
  51
  52 bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket)
  53 {
  54   gint *m_id;
  55
  56   socket->m_gui_dependent = (char *)malloc(sizeof(gint)*2);
  57   m_id = (gint *)(socket->m_gui_dependent);
  58
  59   m_id[0] = -1;
  60   m_id[1] = -1;
  61
  62   return TRUE;
  63 }
  64
  65 void GSocketGUIFunctionsTableConcrete::Destroy_Socket(GSocket *socket)
  66 {
  67   free(socket->m_gui_dependent);
  68 }
  69
  70 void GSocketGUIFunctionsTableConcrete::Install_Callback(GSocket *socket, GSocketEvent event)
  71 {
  72   gint *m_id = (gint *)(socket->m_gui_dependent);
  73   int c;
  74
  75   if (socket->m_fd == -1)
  76     return;
  77
  78   switch (event)
  79   {
  80     case GSOCK_LOST:       /* fall-through */
  81     case GSOCK_INPUT:      c = 0; break;
  82     case GSOCK_OUTPUT:     c = 1; break;
  83     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
  84     default: return;
  85   }
  86
  87   if (m_id[c] != -1)
  88     gdk_input_remove(m_id[c]);
  89
  90   m_id[c] = gdk_input_add(socket->m_fd,
  91                           (c ? GDK_INPUT_WRITE : GDK_INPUT_READ),
  92                           _GSocket_GDK_Input,
  93                           (gpointer)socket);
  94 }
  95
  96 void GSocketGUIFunctionsTableConcrete::Uninstall_Callback(GSocket *socket, GSocketEvent event)
  97 {
  98   gint *m_id = (gint *)(socket->m_gui_dependent);
  99   int c;
 100
 101   assert( m_id != NULL );
 102
 103   switch (event)
 104   {
 105     case GSOCK_LOST:       /* fall-through */
 106     case GSOCK_INPUT:      c = 0; break;
 107     case GSOCK_OUTPUT:     c = 1; break;
 108     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
 109     default: return;
 110   }
 111
 112   if (m_id[c] != -1)
 113   {
 114     gdk_input_remove(m_id[c]);
 115     m_id[c] = -1;
 116   }
 117 }
 118
 119 void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket)
 120 {
 121   Install_Callback(socket, GSOCK_INPUT);
 122   Install_Callback(socket, GSOCK_OUTPUT);
 123 }
 124
 125 void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket)
 126 {
 127   Uninstall_Callback(socket, GSOCK_INPUT);
 128   Uninstall_Callback(socket, GSOCK_OUTPUT);
 129 }
 130
 131 #else /* !wxUSE_SOCKETS */
 132
 133 /* some compilers don't like having empty source files */
 134 static int wxDummyGsockVar = 0;
 135
 136 #endif /* wxUSE_SOCKETS/!wxUSE_SOCKETS */