src/mac/carbon/gsockosx.c

   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   /* Turn off kCFSocketCloseOnInvalidate  (NOTE: > 10.2 only!) */
  71   /* Another default flag that we don't turn on here is for DataCallBack and
  72      also AcceptCallback (which overlap in bits) which we don't use anyway */
  73   /* FIXME: For < 10.2 compatibility fix GSocket to call a platform-dependent
  74      function to close the socket so that we can just call invalidate and
  75      avoid having to set any special flags at all. */
  76   CFSocketSetSocketFlags(cf, kCFSocketAutomaticallyReenableReadCallBack | kCFSocketAutomaticallyReenableWriteCallBack);
  77   socket->m_gui_dependent = (char*)data;
  78
  79   /* Keep the source and the socket around. */
  80   data->source = source;
  81   data->socket = cf;
  82
  83   return data;
  84 }
  85
  86 int _GSocket_GUI_Init(void)
  87 {
  88     return 1;
  89 }
  90
  91 void _GSocket_GUI_Cleanup(void)
  92 {
  93 }
  94
  95 int _GSocket_GUI_Init_Socket(GSocket *socket)
  96 {
  97     struct MacGSocketData *data = malloc(sizeof(struct MacGSocketData));
  98     if (data)
  99     {
 100         socket->m_gui_dependent = (char*)data;
 101         data->socket = NULL;
 102         data->source = NULL;
 103         return 1;
 104     }
 105     return 0;
 106 }
 107
 108 void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 109 {
 110     struct MacGSocketData *data = (struct MacGSocketData*)(socket->m_gui_dependent);
 111     if (data)
 112     {
 113         CFSocketInvalidate(data->socket);
 114         CFRelease(data->socket);
 115         free(data);
 116     }
 117 }
 118
 119 void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event)
 120 {
 121     int c;
 122     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 123     if (!data) return;
 124     switch (event)
 125     {
 126      case GSOCK_CONNECTION:
 127          if(socket->m_server)
 128             c = kCFSocketReadCallBack;
 129          else
 130             c = kCFSocketConnectCallBack;
 131          break;
 132      case GSOCK_LOST:
 133      case GSOCK_INPUT:
 134          c = kCFSocketReadCallBack;
 135          break;
 136      case GSOCK_OUTPUT:
 137          c = kCFSocketWriteCallBack;
 138          break;
 139      default:
 140          c = 0;
 141     }
 142     CFSocketEnableCallBacks(data->socket, c);
 143 }
 144
 145 void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event)
 146 {
 147     int c;
 148     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 149     if (!data) return;
 150     switch (event)
 151     {
 152      case GSOCK_CONNECTION:
 153          if(socket->m_server)
 154             c = kCFSocketReadCallBack;
 155          else
 156             c = kCFSocketConnectCallBack;
 157          break;
 158      case GSOCK_LOST:
 159      case GSOCK_INPUT:
 160          c = kCFSocketReadCallBack;
 161          break;
 162      case GSOCK_OUTPUT:
 163          c = kCFSocketWriteCallBack;
 164          break;
 165      default:
 166          c = 0;
 167     }
 168     CFSocketDisableCallBacks(data->socket, c);
 169 }
 170
 171 void _GSocket_Enable_Events(GSocket *socket)
 172 {
 173     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 174     if (!data) return;
 175
 176     CFRunLoopAddSource(CFRunLoopGetCurrent(), data->source, kCFRunLoopDefaultMode);
 177 }
 178
 179 void _GSocket_Disable_Events(GSocket *socket)
 180 {
 181     struct MacGSocketData* data = _GSocket_Get_Mac_Socket(socket);
 182     if (!data) return;
 183
 184     CFRunLoopRemoveSource(CFRunLoopGetCurrent(), data->source, kCFRunLoopCommonModes);
 185 }
 186
 187 #endif // wxUSE_SOCKETS