AU: Class to perform delta updates.
A class to perform delta updates and the associated unittests. Also,
change the delta diff generator executable to be able to apply a
delta, which is handy for debugging.
TEST=Attached unit test, hand-tested on real build images
BUG=552
Review URL: http://codereview.chromium.org/1718001
diff --git a/file_writer.h b/file_writer.h
index c506c01..37207d0 100644
--- a/file_writer.h
+++ b/file_writer.h
@@ -21,6 +21,7 @@
class FileWriter {
public:
+ FileWriter() {}
virtual ~FileWriter() {}
// Wrapper around open. Returns 0 on success or -errno on error.
@@ -32,6 +33,9 @@
// Wrapper around close. Returns 0 on success or -errno on error.
virtual int Close() = 0;
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(FileWriter);
};
// Direct file writer is probably the simplest FileWriter implementation.
@@ -50,6 +54,8 @@
private:
int fd_;
+
+ DISALLOW_COPY_AND_ASSIGN(DirectFileWriter);
};
class ScopedFileWriterCloser {
@@ -63,6 +69,8 @@
}
private:
FileWriter* writer_;
+
+ DISALLOW_COPY_AND_ASSIGN(ScopedFileWriterCloser);
};
} // namespace chromeos_update_engine