v1.14.0

ADDED:
* iox package
* mapsx package
* netx/inetcksum package

iox/funcs_chunklocker.go

@@ -0,0 +1,28 @@
+package iox
+
+// GetChunkLen returns the current chunk size/length in bytes.
+func (c *ChunkLocker) GetChunkLen() (size uint) {
+
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+
+	size = c.chunkLen
+
+	return
+}
+
+// SetChunkLen sets the current chunk size/length in bytes.
+func (c *ChunkLocker) SetChunkLen(size uint) (err error) {
+
+	if size == 0 {
+		err = ErrInvalidChunkSize
+		return
+	}
+
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	c.chunkLen = size
+
+	return
+}