1 files changed, 42 insertions, 0 deletions
diff --git a/vbench/src/vbench/core/line_reader.h b/vbench/src/vbench/core/line_reader.h
new file mode 100644
index 00000000000..c26dea96db2
--- /dev/null
+++ b/vbench/src/vbench/core/line_reader.h
@@ -0,0 +1,42 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#pragma once
+
+#include "byte_input.h"
+#include "string.h"
+
+namespace vbench {
+
+/**
+ * Concrete utility class used to read individual lines of text from
+ * an underlying input. This class is implemented in terms of the
+ * ByteInput class.
+ **/
+class LineReader
+{
+private:
+    ByteInput _input;
+
+public:
+    /**
+     * Wrap an Input to read one line at a time.
+     *
+     * @param input the underlying Input
+     * @param chunkSize how much data to request from the input per transaction
+     **/
+    LineReader(Input &input, size_t chunkSize);
+
+    /**
+     * Read the next line of input. Lines are separated by '\n'. '\r'
+     * appearing directly in from of '\n' will be stripped. Empty
+     * lines will be returned.
+     *
+     * @return true if a line could be read,
+     *         false if no more data was available
+     * @param dst where to store the line that was read
+     **/
+    bool readLine(string &dst);
+};
+
+} // namespace vbench
+