vendor files

vendor/github.com/gogo/protobuf/io/full.go

@@ -0,0 +1,102 @@
+// Protocol Buffers for Go with Gadgets
+//
+// Copyright (c) 2013, The GoGo Authors. All rights reserved.
+// http://github.com/gogo/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package io
+
+import (
+	"github.com/gogo/protobuf/proto"
+	"io"
+)
+
+func NewFullWriter(w io.Writer) WriteCloser {
+	return &fullWriter{w, nil}
+}
+
+type fullWriter struct {
+	w      io.Writer
+	buffer []byte
+}
+
+func (this *fullWriter) WriteMsg(msg proto.Message) (err error) {
+	var data []byte
+	if m, ok := msg.(marshaler); ok {
+		n, ok := getSize(m)
+		if !ok {
+			data, err = proto.Marshal(msg)
+			if err != nil {
+				return err
+			}
+		}
+		if n >= len(this.buffer) {
+			this.buffer = make([]byte, n)
+		}
+		_, err = m.MarshalTo(this.buffer)
+		if err != nil {
+			return err
+		}
+		data = this.buffer[:n]
+	} else {
+		data, err = proto.Marshal(msg)
+		if err != nil {
+			return err
+		}
+	}
+	_, err = this.w.Write(data)
+	return err
+}
+
+func (this *fullWriter) Close() error {
+	if closer, ok := this.w.(io.Closer); ok {
+		return closer.Close()
+	}
+	return nil
+}
+
+type fullReader struct {
+	r   io.Reader
+	buf []byte
+}
+
+func NewFullReader(r io.Reader, maxSize int) ReadCloser {
+	return &fullReader{r, make([]byte, maxSize)}
+}
+
+func (this *fullReader) ReadMsg(msg proto.Message) error {
+	length, err := this.r.Read(this.buf)
+	if err != nil {
+		return err
+	}
+	return proto.Unmarshal(this.buf[:length], msg)
+}
+
+func (this *fullReader) Close() error {
+	if closer, ok := this.r.(io.Closer); ok {
+		return closer.Close()
+	}
+	return nil
+}