private void SetClose()
{
if (_wsi.IsValid())
{
_is_closing = true;
SetReadyState(ReadyState.CLOSING);
WSApi.lws_callback_on_writable(_wsi);
_wsi = lws.Null;
}
else
{
SetReadyState(ReadyState.CLOSED);
}
}
private void OnWrite()
{
if (_pending.Count > 0)
{
var packet = _pending.Dequeue();
var protocol = packet.is_binary ? lws_write_protocol.LWS_WRITE_BINARY : lws_write_protocol.LWS_WRITE_TEXT;
var len = packet.buffer.writerIndex - WSApi.LWS_PRE;
unsafe
{
fixed(byte *buf = packet.buffer.data)
{
WSApi.lws_write(_wsi, &buf[WSApi.LWS_PRE], len, protocol);
}
}
_bufferedAmount -= len;
packet.Release();
if (_pending.Count > 0)
{
WSApi.lws_callback_on_writable(_wsi);
}
}
}
private static JSValue _js_send(JSContext ctx, JSValue this_obj, int argc, JSValue[] argv)
{
try
{
WebSocket self;
if (!js_get_classvalue(ctx, this_obj, out self))
{
throw new ThisBoundException();
}
if (argc == 0)
{
throw new ParameterException("data", typeof(string), 0);
}
if (!self._wsi.IsValid() || !self._context.IsValid())
{
return(JSApi.JS_ThrowInternalError(ctx, "websocket closed"));
}
if (argv[0].IsString())
{
// send text data
size_t psize;
var pointer = JSApi.JS_ToCStringLen(ctx, out psize, argv[0]);
if (pointer != IntPtr.Zero && psize > 0)
{
var buffer = ScriptEngine.AllocByteBuffer(ctx, psize + WSApi.LWS_PRE);
if (buffer != null)
{
buffer.WriteBytes(WSApi.LWS_PRE);
buffer.WriteBytes(pointer, psize);
self._pending.Enqueue(new Packet(false, buffer));
self._bufferedAmount += psize;
WSApi.lws_callback_on_writable(self._wsi);
}
else
{
JSApi.JS_FreeCString(ctx, pointer);
return(JSApi.JS_ThrowInternalError(ctx, "buf alloc failed"));
}
}
JSApi.JS_FreeCString(ctx, pointer);
}
else
{
size_t psize;
var pointer = JSApi.JS_GetArrayBuffer(ctx, out psize, argv[0]);
if (pointer != IntPtr.Zero && psize > 0)
{
var buffer = ScriptEngine.AllocByteBuffer(ctx, psize + WSApi.LWS_PRE);
if (buffer != null)
{
buffer.WriteBytes(WSApi.LWS_PRE);
buffer.WriteBytes(pointer, psize);
self._pending.Enqueue(new Packet(false, buffer));
self._bufferedAmount += psize;
WSApi.lws_callback_on_writable(self._wsi);
}
else
{
return(JSApi.JS_ThrowInternalError(ctx, "buf alloc failed"));
}
}
else
{
return(JSApi.JS_ThrowInternalError(ctx, "unknown buf type"));
}
}
return(JSApi.JS_UNDEFINED);
}
catch (Exception exception)
{
return(JSApi.ThrowException(ctx, exception));
}
}