src/motif/gsockmot.c

   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 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->m_functions->Detected_Read(socket);
  26 }
  27
  28 static void _GSocket_Motif_Output(XtPointer data, int *fid,
  29                                   XtInputId *id)
  30 {
  31   GSocket *socket = (GSocket *)data;
  32
  33   socket->m_functions->Detected_Write(socket);
  34 }
  35
  36 int _GSocket_GUI_Init(void)
  37 {
  38     return 1;
  39 }
  40
  41 void _GSocket_GUI_Cleanup(void)
  42 {
  43 }
  44
  45 int _GSocket_GUI_Init_Socket(GSocket *socket)
  46 {
  47   int *m_id;
  48
  49   socket->m_gui_dependent = (char *)malloc(sizeof(int)*2);
  50   m_id = (int *)(socket->m_gui_dependent);
  51
  52   m_id[0] = -1;
  53   m_id[1] = -1;
  54
  55   return TRUE;
  56 }
  57
  58 void _GSocket_GUI_Destroy_Socket(GSocket *socket)
  59 {
  60   free(socket->m_gui_dependent);
  61 }
  62
  63 void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event)
  64 {
  65   int *m_id = (int *)(socket->m_gui_dependent);
  66   int c;
  67
  68   if (socket->m_fd == -1)
  69     return;
  70
  71   switch (event)
  72   {
  73     case GSOCK_LOST:       /* fall-through */
  74     case GSOCK_INPUT:      c = 0; break;
  75     case GSOCK_OUTPUT:     c = 1; break;
  76     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
  77     default: return;
  78   }
  79
  80   if (m_id[c] != -1)
  81     XtRemoveInput(m_id[c]);
  82
  83   if (c == 0)
  84   {
  85      m_id[0] = XtAppAddInput(wxGetAppContext(), socket->m_fd,
  86                              (XtPointer *)XtInputReadMask,
  87                              (XtInputCallbackProc) _GSocket_Motif_Input,
  88                              (XtPointer) socket);
  89   }
  90   else
  91   {
  92      m_id[1] = XtAppAddInput(wxGetAppContext(), socket->m_fd,
  93                              (XtPointer *)XtInputWriteMask,
  94                              (XtInputCallbackProc) _GSocket_Motif_Output,
  95                              (XtPointer) socket);
  96   }
  97 }
  98
  99 void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event)
 100 {
 101   int *m_id = (int *)(socket->m_gui_dependent);
 102   int c;
 103
 104   switch (event)
 105   {
 106     case GSOCK_LOST:       /* fall-through */
 107     case GSOCK_INPUT:      c = 0; break;
 108     case GSOCK_OUTPUT:     c = 1; break;
 109     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
 110     default: return;
 111   }
 112
 113   if (m_id[c] != -1)
 114     XtRemoveInput(m_id[c]);
 115
 116   m_id[c] = -1;
 117 }
 118
 119 void _GSocket_Enable_Events(GSocket *socket)
 120 {
 121   _GSocket_Install_Callback(socket, GSOCK_INPUT);
 122   _GSocket_Install_Callback(socket, GSOCK_OUTPUT);
 123 }
 124
 125 void _GSocket_Disable_Events(GSocket *socket)
 126 {
 127   _GSocket_Uninstall_Callback(socket, GSOCK_INPUT);
 128   _GSocket_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 */