增加mqtt

node_modules/stream-shift/index.js

@@ -1,21 +0,0 @@
-module.exports = shift
-
-function shift (stream) {
-  var rs = stream._readableState
-  if (!rs) return null
-  return (rs.objectMode || typeof stream._duplexState === 'number') ? stream.read() : stream.read(getStateLength(rs))
-}
-
-function getStateLength (state) {
-  if (state.buffer.length) {
-    var idx = state.bufferIndex || 0
-    // Since node 6.3.0 state.buffer is a BufferList not an array
-    if (state.buffer.head) {
-      return state.buffer.head.data.length
-    } else if (state.buffer.length - idx > 0 && state.buffer[idx]) {
-      return state.buffer[idx].length
-    }
-  }
-
-  return state.length
-}