src/gtk/gsockgtk.cpp

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