src/motif/gsockmot.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:    src/motif/gsockmot.cpp
   3 // Project: GSocket (Generic Socket) for WX
   4 // Purpose: GSocket: Motif part
   5 // CVSID:   $Id$
   6 // Licence: wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if wxUSE_SOCKETS
  13
  14 #include <stdlib.h>
  15 #include <X11/Intrinsic.h>
  16 #include "wx/gsocket.h"
  17 #include "wx/unix/gsockunx.h"
  18
  19 extern "C" XtAppContext wxGetAppContext();
  20
  21 static void _GSocket_Motif_Input(XtPointer data, int *WXUNUSED(fid),
  22                                  XtInputId *WXUNUSED(id))
  23 {
  24     GSocket *socket = (GSocket *)data;
  25
  26     socket->Detected_Read();
  27 }
  28
  29 static void _GSocket_Motif_Output(XtPointer data, int *WXUNUSED(fid),
  30                                   XtInputId *WXUNUSED(id))
  31 {
  32     GSocket *socket = (GSocket *)data;
  33
  34     socket->Detected_Write();
  35 }
  36
  37 bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop()
  38 {
  39     return true;
  40 }
  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     int *m_id;
  54
  55     socket->m_gui_dependent = (char *)malloc(sizeof(int)*2);
  56     m_id = (int *)(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     int *m_id = (int *)(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         XtRemoveInput(m_id[c]);
  88
  89     if (c == 0)
  90     {
  91         m_id[0] = XtAppAddInput(wxGetAppContext(), socket->m_fd,
  92                                 (XtPointer *)XtInputReadMask,
  93                                 (XtInputCallbackProc) _GSocket_Motif_Input,
  94                                 (XtPointer) socket);
  95     }
  96     else
  97     {
  98         m_id[1] = XtAppAddInput(wxGetAppContext(), socket->m_fd,
  99                                 (XtPointer *)XtInputWriteMask,
 100                                 (XtInputCallbackProc) _GSocket_Motif_Output,
 101                                 (XtPointer) socket);
 102     }
 103 }
 104
 105 void GSocketGUIFunctionsTableConcrete::Uninstall_Callback(GSocket *socket, GSocketEvent event)
 106 {
 107     int *m_id = (int *)(socket->m_gui_dependent);
 108     int c;
 109
 110     switch (event)
 111     {
 112         case GSOCK_LOST:       /* fall-through */
 113         case GSOCK_INPUT:      c = 0; break;
 114         case GSOCK_OUTPUT:     c = 1; break;
 115         case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
 116         default: return;
 117     }
 118
 119     if (m_id[c] != -1)
 120         XtRemoveInput(m_id[c]);
 121
 122     m_id[c] = -1;
 123 }
 124
 125 void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket)
 126 {
 127     Install_Callback(socket, GSOCK_INPUT);
 128     Install_Callback(socket, GSOCK_OUTPUT);
 129 }
 130
 131 void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket)
 132 {
 133     Uninstall_Callback(socket, GSOCK_INPUT);
 134     Uninstall_Callback(socket, GSOCK_OUTPUT);
 135 }
 136
 137 #else /* !wxUSE_SOCKETS */
 138
 139 /* some compilers don't like having empty source files */
 140 static int wxDummyGsockVar = 0;
 141
 142 #endif /* wxUSE_SOCKETS/!wxUSE_SOCKETS */