Add NativeHandle, a refcounted C++ wrapper around a native_handle_t*

/*

 * Copyright 2014 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 ANDROID_NATIVE_HANDLE_H

#define ANDROID_NATIVE_HANDLE_H

#include <utils/RefBase.h>

#include <utils/StrongPointer.h>

typedef struct native_handle native_handle_t;

namespace android {

class NativeHandle: public LightRefBase<NativeHandle> {

public:

    // Create a refcounted wrapper around a native_handle_t.

    // If handle is NULL, no NativeHandle will be created.

    static sp<NativeHandle> create(native_handle_t* handle);

    const native_handle_t* handle() const {

        return mHandle;

    }

private:

    // for access to the destructor

    friend class LightRefBase<NativeHandle>;

    NativeHandle(native_handle_t* handle);

    virtual ~NativeHandle();

    native_handle_t* mHandle;

    // non-copyable

    NativeHandle(const NativeHandle&);

    NativeHandle& operator=(const NativeHandle&);

};

} // namespace android

#endif // ANDROID_NATIVE_HANDLE_H

	LinearAllocator.cpp \

	LinearTransform.cpp \

	Log.cpp \

	NativeHandle.cpp \

	Printer.cpp \

	ProcessCallStack.cpp \

	PropertyMap.cpp \

/*

 * Copyright 2014 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.

 */

#include <utils/NativeHandle.h>

#include <cutils/native_handle.h>

namespace android {

sp<NativeHandle> NativeHandle::create(native_handle_t* handle) {

    return handle ? new NativeHandle(handle) : NULL;

}

NativeHandle::NativeHandle(native_handle_t* handle)

:   mHandle(handle)

{}

NativeHandle::~NativeHandle() {

    native_handle_close(mHandle);

    native_handle_delete(mHandle);

}

} // namespace android