src/motif/gsockmot.cpp

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