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->m_functions->Detected_Write(socket);
  39       break;
  40     case kCFSocketReadCallBack:
  41       socket->m_functions->Detected_Read(socket);
  42       break;
  43     case kCFSocketWriteCallBack:
  44       socket->m_functions->Detected_Write(socket);
  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 int _GSocket_GUI_Init(void)
  80 {
  81     return 1;
  82 }
  83
  84 void _GSocket_GUI_Cleanup(void)
  85 {
  86 }
  87
  88 int _GSocket_GUI_Init_Socket(GSocket *socket)
  89 {
  90     struct MacGSocketData *data = (struct MacGSocketData *)malloc(sizeof(struct MacGSocketData));
  91     if (data)
  92     {
  93         socket->m_gui_dependent = (char*)data;
  94         data->socket = NULL;
  95         data->source = NULL;
  96         return 1;
  97     }
  98     return 0;
  99 }
 100
 101 void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 102 {
 103     struct MacGSocketData *data = (struct MacGSocketData*)(socket->m_gui_dependent);
 104     if (data)
 105     {
 106         CFRelease(data->socket);
 107         free(data);
 108     }
 109 }
 110
 111 void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event)
 112 {
 113     int c;
 114     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 115     if (!data) return;
 116     switch (event)
 117     {
 118      case GSOCK_CONNECTION:
 119          if(socket->m_server)
 120             c = kCFSocketReadCallBack;
 121          else
 122             c = kCFSocketConnectCallBack;
 123          break;
 124      case GSOCK_LOST:
 125      case GSOCK_INPUT:
 126          c = kCFSocketReadCallBack;
 127          break;
 128      case GSOCK_OUTPUT:
 129          c = kCFSocketWriteCallBack;
 130          break;
 131      default:
 132          c = 0;
 133     }
 134     CFSocketEnableCallBacks(data->socket, c);
 135 }
 136
 137 void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event)
 138 {
 139     int c;
 140     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 141     if (!data) return;
 142     switch (event)
 143     {
 144      case GSOCK_CONNECTION:
 145          if(socket->m_server)
 146             c = kCFSocketReadCallBack;
 147          else
 148             c = kCFSocketConnectCallBack;
 149          break;
 150      case GSOCK_LOST:
 151      case GSOCK_INPUT:
 152          c = kCFSocketReadCallBack;
 153          break;
 154      case GSOCK_OUTPUT:
 155          c = kCFSocketWriteCallBack;
 156          break;
 157      default:
 158          c = 0;
 159     }
 160     CFSocketDisableCallBacks(data->socket, c);
 161 }
 162
 163 void _GSocket_Enable_Events(GSocket *socket)
 164 {
 165     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 166     if (!data) return;
 167
 168     CFRunLoopAddSource(CFRunLoopGetCurrent(), data->source, kCFRunLoopDefaultMode);
 169 }
 170
 171 void _GSocket_Disable_Events(GSocket *socket)
 172 {
 173     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 174     if (!data) return;
 175
 176     /* CFSocketInvalidate does CFRunLoopRemoveSource anyway */
 177     CFRunLoopRemoveSource(CFRunLoopGetCurrent(), data->source, kCFRunLoopCommonModes);
 178     CFSocketInvalidate(data->socket);
 179 }
 180
 181 #endif // wxUSE_SOCKETS