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/vector_output_stream.h b/src/vector_output_stream.h
new file mode 100644
index 0000000..a11c82b
--- /dev/null
+++ b/src/vector_output_stream.h
@@ -0,0 +1,49 @@
+/*
+ * 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_VECTOR_OUTPUT_STREAM_H_
+#define ART_SRC_VECTOR_OUTPUT_STREAM_H_
+
+#include "output_stream.h"
+
+#include <string>
+#include <vector>
+
+namespace art {
+
+class VectorOutputStream : public OutputStream {
+
+ public:
+ VectorOutputStream(const std::string& location, std::vector<uint8_t>& vector);
+
+ virtual ~VectorOutputStream() {};
+
+ virtual bool WriteFully(const void* buffer, int64_t byte_count);
+
+ virtual off_t lseek(off_t offset, int whence);
+
+ private:
+ void EnsureCapacity(off_t new_offset);
+
+ off_t offset_;
+ std::vector<uint8_t>& vector_;
+
+ DISALLOW_COPY_AND_ASSIGN(VectorOutputStream);
+};
+
+} // namespace art
+
+#endif // ART_SRC_VECTOR_OUTPUT_STREAM_H_