nearby: snapshot of cl/304428753

Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I0023ac6e40456fc4a8169c3173bcbff3b5ccc476

cpp/platform/api2/input_stream.h

@@ -0,0 +1,27 @@
+#ifndef PLATFORM_API2_INPUT_STREAM_H_
+#define PLATFORM_API2_INPUT_STREAM_H_
+
+#include <cstdint>
+
+#include "platform/byte_array.h"
+#include "platform/exception.h"
+
+namespace location {
+namespace nearby {
+
+// An InputStream represents an input stream of bytes.
+//
+// https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html
+class InputStream {
+ public:
+  virtual ~InputStream() {}
+
+  virtual ExceptionOr<ByteArray> Read(
+      size_t size) = 0;           // throws Exception::kIo
+  virtual Exception Close() = 0;  // throws Exception::kIo
+};
+
+}  // namespace nearby
+}  // namespace location
+
+#endif  // PLATFORM_API2_INPUT_STREAM_H_