internal CFSocket(CFSocketNativeHandle sock)
{
var cbTypes = CFSocketCallBackType.DataCallBack | CFSocketCallBackType.WriteCallBack;
gch = GCHandle.Alloc(this);
var ctx = new CFStreamClientContext();
ctx.Info = GCHandle.ToIntPtr(gch);
var ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(CFStreamClientContext)));
try {
Marshal.StructureToPtr(ctx, ptr, false);
Handle = CFSocketCreateWithNative(
IntPtr.Zero, sock, cbTypes, OnCallback, ptr);
} finally {
Marshal.FreeHGlobal(ptr);
}
if (Handle == IntPtr.Zero)
{
throw new CFSocketException(CFSocketError.Error);
}
var source = new CFRunLoopSource(CFSocketCreateRunLoopSource(IntPtr.Zero, Handle, 0));
var loop = CFRunLoop.Current;
loop.AddSource(source, CFRunLoop.CFDefaultRunLoopMode);
}
static void OnCallback(IntPtr s, int type, IntPtr address, IntPtr data, IntPtr info)
{
var socket = GCHandle.FromIntPtr(info).Target as CFSocket;
CFSocketCallBackType cbType = (CFSocketCallBackType)type;
if (cbType == CFSocketCallBackType.AcceptCallBack)
{
var ep = CFSocketAddress.EndPointFromAddressPtr(address);
var handle = new CFSocketNativeHandle(Marshal.ReadInt32(data));
socket.OnAccepted(new CFSocketAcceptEventArgs(handle, ep));
}
else if (cbType == CFSocketCallBackType.ConnectCallBack)
{
CFSocketError result;
if (data == IntPtr.Zero)
{
result = CFSocketError.Success;
}
else
{
result = (CFSocketError)Marshal.ReadInt32(data);
}
socket.OnConnect(new CFSocketConnectEventArgs(result));
}
}
static extern void CFStreamCreatePairWithSocket(IntPtr allocator, CFSocketNativeHandle socket, out IntPtr read, out IntPtr write);
public CFSocketAcceptEventArgs(CFSocketNativeHandle handle, IPEndPoint remote)
{
this.SocketHandle = handle;
this.RemoteEndPoint = remote;
}
extern static IntPtr CFSocketCreateWithNative(IntPtr allocator, CFSocketNativeHandle sock,
CFSocketCallBackType callBackTypes,
CFSocketCallBack callout, IntPtr ctx);
extern static void CFStreamCreatePairWithSocket(IntPtr allocator, CFSocketNativeHandle socket,
out IntPtr read, out IntPtr write);
public CFSocketAcceptEventArgs (CFSocketNativeHandle handle, IPEndPoint remote)
{
this.SocketHandle = handle;
this.RemoteEndPoint = remote;
}
internal CFSocket (CFSocketNativeHandle sock)
{
var cbTypes = CFSocketCallBackType.DataCallBack | CFSocketCallBackType.WriteCallBack;
gch = GCHandle.Alloc (this);
var ctx = new CFStreamClientContext ();
ctx.Info = GCHandle.ToIntPtr (gch);
var ptr = Marshal.AllocHGlobal (Marshal.SizeOf (typeof(CFStreamClientContext)));
try {
Marshal.StructureToPtr (ctx, ptr, false);
handle = CFSocketCreateWithNative (
IntPtr.Zero, sock, cbTypes, OnCallback, ptr);
} finally {
Marshal.FreeHGlobal (ptr);
}
if (handle == IntPtr.Zero)
throw new CFSocketException (CFSocketError.Error);
var source = new CFRunLoopSource (CFSocketCreateRunLoopSource (IntPtr.Zero, handle, 0));
var loop = CFRunLoop.Current;
loop.AddSource (source, CFRunLoop.CFDefaultRunLoopMode);
}
extern static IntPtr CFSocketCreateWithNative (IntPtr allocator, CFSocketNativeHandle sock, CFSocketCallBackType callBackTypes, CFSocketCallBack callout, IntPtr ctx);
static void OnCallback (IntPtr s, int type, IntPtr address, IntPtr data, IntPtr info)
{
var socket = GCHandle.FromIntPtr (info).Target as CFSocket;
CFSocketCallBackType cbType = (CFSocketCallBackType)type;
if (cbType == CFSocketCallBackType.AcceptCallBack) {
var ep = CFSocketAddress.EndPointFromAddressPtr (address);
var handle = new CFSocketNativeHandle (Marshal.ReadInt32 (data));
socket.OnAccepted (new CFSocketAcceptEventArgs (handle, ep));
} else if (cbType == CFSocketCallBackType.ConnectCallBack) {
CFSocketError result;
if (data == IntPtr.Zero)
result = CFSocketError.Success;
else
result = (CFSocketError)Marshal.ReadInt32 (data);
socket.OnConnect (new CFSocketConnectEventArgs (result));
}
}
