Create OutputStream abstraction
Allows data to be sent to file or memory transparently.
Standard C++ streams don't allow to create a stream from a file descriptor.
Change-Id: I820a864172e756949c61f29ef1517d1ebb253a0b
diff --git a/src/file_output_stream.h b/src/file_output_stream.h
new file mode 100644
index 0000000..4106744
--- /dev/null
+++ b/src/file_output_stream.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_SRC_FILE_OUTPUT_STREAM_H_
+#define ART_SRC_FILE_OUTPUT_STREAM_H_
+
+#include "output_stream.h"
+
+#include "os.h"
+
+namespace art {
+
+class FileOutputStream : public OutputStream {
+
+ public:
+ FileOutputStream(File* file);
+
+ virtual ~FileOutputStream() {};
+
+ virtual bool WriteFully(const void* buffer, int64_t byte_count);
+
+ virtual off_t lseek(off_t offset, int whence);
+
+ private:
+ File* file_;
+
+ DISALLOW_COPY_AND_ASSIGN(FileOutputStream);
+};
+
+} // namespace art
+
+#endif // ART_SRC_FILE_OUTPUT_STREAM_H_