src/x11/gsockx11.cpp

   1 /* -------------------------------------------------------------------------
   2  * Project: GSocket (Generic Socket) for WX
   3  * Name:    src/x11/gsockx11.cpp
   4  * Purpose: GSocket: X11 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 defined(__BORLANDC__)
  13 #pragma hdrstop
  14 #endif
  15
  16 #if wxUSE_SOCKETS
  17
  18 #include <stdlib.h>
  19 #include "wx/gsocket.h"
  20 #include "wx/unix/gsockunx.h"
  21
  22 /*
  23  * FIXME: have these in a common header instead of being repeated
  24  * in evtloop.cpp and gsockx11.c
  25  */
  26
  27 typedef void (*wxSocketCallback) (int fd, void* data);
  28
  29 typedef enum
  30 { wxSocketTableInput, wxSocketTableOutput } wxSocketTableType ;
  31
  32 extern "C" void wxRegisterSocketCallback(int fd, wxSocketTableType socketType, wxSocketCallback cback, void* data);
  33 extern "C" void wxUnregisterSocketCallback(int fd, wxSocketTableType socketType);
  34
  35
  36 static void _GSocket_X11_Input(int *fid, void* data)
  37 {
  38   GSocket *socket = (GSocket *)data;
  39
  40   socket->Detected_Read();
  41 }
  42
  43 static void _GSocket_X11_Output(int *fid, void* data)
  44 {
  45   GSocket *socket = (GSocket *)data;
  46
  47   socket->Detected_Write();
  48 }
  49
  50 bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop()
  51 {   return true; }
  52
  53 bool GSocketGUIFunctionsTableConcrete::OnInit(void)
  54 {
  55     return 1;
  56 }
  57
  58 void GSocketGUIFunctionsTableConcrete::OnExit(void)
  59 {
  60 }
  61
  62 bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket)
  63 {
  64   int *m_id;
  65
  66   socket->m_gui_dependent = (char *)malloc(sizeof(int)*2);
  67   m_id = (int *)(socket->m_gui_dependent);
  68
  69   m_id[0] = -1;
  70   m_id[1] = -1;
  71
  72   return true;
  73 }
  74
  75 void GSocketGUIFunctionsTableConcrete::Destroy_Socket(GSocket *socket)
  76 {
  77   free(socket->m_gui_dependent);
  78 }
  79
  80 void GSocketGUIFunctionsTableConcrete::Install_Callback(GSocket *socket, GSocketEvent event)
  81 {
  82   int *m_id = (int *)(socket->m_gui_dependent);
  83   int c;
  84
  85   if (socket->m_fd == -1)
  86     return;
  87
  88   switch (event)
  89   {
  90     case GSOCK_LOST:       /* fall-through */
  91     case GSOCK_INPUT:      c = 0; break;
  92     case GSOCK_OUTPUT:     c = 1; break;
  93     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
  94     default: return;
  95   }
  96
  97 #if 0
  98   if (m_id[c] != -1)
  99       XtRemoveInput(m_id[c]);
 100 #endif /* 0 */
 101
 102   if (c == 0)
 103   {
 104       m_id[0] = socket->m_fd;
 105
 106       wxRegisterSocketCallback(socket->m_fd, wxSocketTableInput,
 107                                (wxSocketCallback) _GSocket_X11_Input, (void*) socket);
 108   }
 109   else
 110   {
 111       m_id[1] = socket->m_fd;
 112
 113       wxRegisterSocketCallback(socket->m_fd, wxSocketTableOutput,
 114                                (wxSocketCallback) _GSocket_X11_Output, (void*) socket);
 115   }
 116 }
 117
 118 void GSocketGUIFunctionsTableConcrete::Uninstall_Callback(GSocket *socket, GSocketEvent event)
 119 {
 120   int *m_id = (int *)(socket->m_gui_dependent);
 121   int c;
 122
 123   switch (event)
 124   {
 125     case GSOCK_LOST:       /* fall-through */
 126     case GSOCK_INPUT:      c = 0; break;
 127     case GSOCK_OUTPUT:     c = 1; break;
 128     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
 129     default: return;
 130   }
 131
 132   if (m_id[c] != -1)
 133   {
 134       if (c == 0)
 135           wxUnregisterSocketCallback(m_id[c], wxSocketTableInput);
 136       else
 137           wxUnregisterSocketCallback(m_id[c], wxSocketTableOutput);
 138   }
 139
 140   m_id[c] = -1;
 141 }
 142
 143 void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket)
 144 {
 145   Install_Callback(socket, GSOCK_INPUT);
 146   Install_Callback(socket, GSOCK_OUTPUT);
 147 }
 148
 149 void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket)
 150 {
 151   Uninstall_Callback(socket, GSOCK_INPUT);
 152   Uninstall_Callback(socket, GSOCK_OUTPUT);
 153 }
 154
 155 #else /* !wxUSE_SOCKETS */
 156
 157 /* some compilers don't like having empty source files */
 158 static int wxDummyGsockVar = 0;
 159
 160 #endif /* wxUSE_SOCKETS/!wxUSE_SOCKETS */