1 files changed, 57 insertions, 0 deletions
diff --git a/libunwindstack/MemoryBuffer.h b/libunwindstack/MemoryBuffer.h
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+++ b/libunwindstack/MemoryBuffer.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2019 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 _LIBUNWINDSTACK_MEMORY_BUFFER_H
+#define _LIBUNWINDSTACK_MEMORY_BUFFER_H
+
+#include <stdint.h>
+
+#include <string>
+#include <vector>
+
+#include <unwindstack/Memory.h>
+
+namespace unwindstack {
+
+class MemoryBuffer : public Memory {
+ public:
+  MemoryBuffer() = default;
+  virtual ~MemoryBuffer() { free(raw_); }
+
+  size_t Read(uint64_t addr, void* dst, size_t size) override;
+
+  uint8_t* GetPtr(size_t offset);
+
+  bool Resize(size_t size) {
+    raw_ = reinterpret_cast<uint8_t*>(realloc(raw_, size));
+    if (raw_ == nullptr) {
+      size_ = 0;
+      return false;
+    }
+    size_ = size;
+    return true;
+  }
+
+  uint64_t Size() { return size_; }
+
+ private:
+  uint8_t* raw_ = nullptr;
+  size_t size_ = 0;
+};
+
+}  // namespace unwindstack
+
+#endif  // _LIBUNWINDSTACK_MEMORY_BUFFER_H