src/mac/carbon/gsockosx.cpp

   1 /* -------------------------------------------------------------------------
   2  * Project: GSocket (Generic Socket) for WX
   3  * Name:    gsockosx.c
   4  * Purpose: GSocket: Mac OS X mach-o part
   5  * CVSID:   $Id$
   6  * Mac code by Brian Victor, February 2002.  Email comments to bhv1@psu.edu
   7  * ------------------------------------------------------------------------- */
   8
   9 #include "wx/setup.h"
  10
  11 #if wxUSE_SOCKETS
  12
  13 #include <stdlib.h>
  14 #include "wx/gsocket.h"
  15 #include "wx/unix/gsockunx.h"
  16
  17 #include <CoreFoundation/CoreFoundation.h>
  18
  19 #define ALL_CALLBACK_TYPES (kCFSocketReadCallBack | kCFSocketWriteCallBack | kCFSocketConnectCallBack)
  20
  21 struct MacGSocketData
  22 {
  23   CFSocketRef socket;
  24   CFRunLoopSourceRef source;
  25 };
  26
  27 void Mac_Socket_Callback(CFSocketRef s, CFSocketCallBackType callbackType,
  28                          CFDataRef address, const void* data, void* info)
  29 {
  30   GSocket* socket = (GSocket*)info;
  31   struct MacGSocketData* macdata;
  32   macdata = (struct MacGSocketData*)socket->m_gui_dependent;
  33   if (!macdata) return;
  34   switch (callbackType)
  35   {
  36     case kCFSocketConnectCallBack:
  37       assert(!socket->m_server);
  38       socket->Detected_Write();
  39       break;
  40     case kCFSocketReadCallBack:
  41       socket->Detected_Read();
  42       break;
  43     case kCFSocketWriteCallBack:
  44       socket->Detected_Write();
  45       break;
  46     default:
  47       break;  /* We shouldn't get here. */
  48   }
  49 }
  50
  51 struct MacGSocketData* _GSocket_Get_Mac_Socket(GSocket *socket)
  52 {
  53   /* If socket is already created, returns a pointer to the data */
  54   /* Otherwise, creates socket and returns the pointer */
  55   CFSocketContext cont;
  56   struct MacGSocketData* data = (struct MacGSocketData*)socket->m_gui_dependent;
  57
  58   if (data && data->source) return data;
  59
  60   /* CFSocket has not been created, create it: */
  61   if (socket->m_fd < 0 || !data) return NULL;
  62   cont.version = 0; cont.retain = NULL;
  63   cont.release = NULL; cont.copyDescription = NULL;
  64   cont.info = socket;
  65
  66   CFSocketRef cf = CFSocketCreateWithNative(NULL, socket->m_fd,
  67                         ALL_CALLBACK_TYPES, Mac_Socket_Callback, &cont);
  68   CFRunLoopSourceRef source = CFSocketCreateRunLoopSource(NULL, cf, 0);
  69   assert(source);
  70   socket->m_gui_dependent = (char*)data;
  71
  72   /* Keep the source and the socket around. */
  73   data->source = source;
  74   data->socket = cf;
  75
  76   return data;
  77 }
  78
  79 bool GSocketGUIFunctionsTableConcrete::CanUseEventLoop()
  80 {   return true; }
  81
  82 bool GSocketGUIFunctionsTableConcrete::OnInit(void)
  83 {
  84     return true;
  85 }
  86
  87 void GSocketGUIFunctionsTableConcrete::OnExit(void)
  88 {
  89 }
  90
  91 bool GSocketGUIFunctionsTableConcrete::Init_Socket(GSocket *socket)
  92 {
  93     struct MacGSocketData *data = (struct MacGSocketData *)malloc(sizeof(struct MacGSocketData));
  94     if (data)
  95     {
  96         socket->m_gui_dependent = (char*)data;
  97         data->socket = NULL;
  98         data->source = NULL;
  99         return 1;
 100     }
 101     return 0;
 102 }
 103
 104 void GSocketGUIFunctionsTableConcrete::Destroy_Socket(GSocket *socket)
 105 {
 106     struct MacGSocketData *data = (struct MacGSocketData*)(socket->m_gui_dependent);
 107     if (data)
 108     {
 109         CFRelease(data->socket);
 110         free(data);
 111     }
 112 }
 113
 114 void GSocketGUIFunctionsTableConcrete::Install_Callback(GSocket *socket, GSocketEvent event)
 115 {
 116     int c;
 117     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 118     if (!data) return;
 119     switch (event)
 120     {
 121      case GSOCK_CONNECTION:
 122          if(socket->m_server)
 123             c = kCFSocketReadCallBack;
 124          else
 125             c = kCFSocketConnectCallBack;
 126          break;
 127      case GSOCK_LOST:
 128      case GSOCK_INPUT:
 129          c = kCFSocketReadCallBack;
 130          break;
 131      case GSOCK_OUTPUT:
 132          c = kCFSocketWriteCallBack;
 133          break;
 134      default:
 135          c = 0;
 136     }
 137     CFSocketEnableCallBacks(data->socket, c);
 138 }
 139
 140 void GSocketGUIFunctionsTableConcrete::Uninstall_Callback(GSocket *socket, GSocketEvent event)
 141 {
 142     int c;
 143     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 144     if (!data) return;
 145     switch (event)
 146     {
 147      case GSOCK_CONNECTION:
 148          if(socket->m_server)
 149             c = kCFSocketReadCallBack;
 150          else
 151             c = kCFSocketConnectCallBack;
 152          break;
 153      case GSOCK_LOST:
 154      case GSOCK_INPUT:
 155          c = kCFSocketReadCallBack;
 156          break;
 157      case GSOCK_OUTPUT:
 158          c = kCFSocketWriteCallBack;
 159          break;
 160      default:
 161          c = 0;
 162     }
 163     CFSocketDisableCallBacks(data->socket, c);
 164 }
 165
 166 void GSocketGUIFunctionsTableConcrete::Enable_Events(GSocket *socket)
 167 {
 168     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 169     if (!data) return;
 170
 171     CFRunLoopAddSource(CFRunLoopGetCurrent(), data->source, kCFRunLoopDefaultMode);
 172 }
 173
 174 void GSocketGUIFunctionsTableConcrete::Disable_Events(GSocket *socket)
 175 {
 176     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 177     if (!data) return;
 178
 179     /* CFSocketInvalidate does CFRunLoopRemoveSource anyway */
 180     CFRunLoopRemoveSource(CFRunLoopGetCurrent(), data->source, kCFRunLoopCommonModes);
 181     CFSocketInvalidate(data->socket);
 182 }
 183
 184 #endif // wxUSE_SOCKETS