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author | Jesse Hall <jessehall@google.com> | 2014-03-03 10:52:14 -0800 |
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committer | Jesse Hall <jessehall@google.com> | 2014-03-05 16:12:41 -0800 |
commit | 29cc9ce49a10883c370c6bd428cdd81baae1f945 (patch) | |
tree | b6b1808787c43927ca17fd21fd3fbfa7451a3a67 | |
parent | a4c673e9af8148eed70a5fab54eaefb8506a3ab3 (diff) | |
download | system_core-29cc9ce49a10883c370c6bd428cdd81baae1f945.tar.gz system_core-29cc9ce49a10883c370c6bd428cdd81baae1f945.tar.bz2 system_core-29cc9ce49a10883c370c6bd428cdd81baae1f945.zip |
Add NativeHandle, a refcounted C++ wrapper around a native_handle_t*
Change-Id: I232dfa2ad2e4a463a39e2e901e4097dffe278cc3
-rw-r--r-- | include/utils/NativeHandle.h | 53 | ||||
-rw-r--r-- | libutils/Android.mk | 1 | ||||
-rw-r--r-- | libutils/NativeHandle.cpp | 35 |
3 files changed, 89 insertions, 0 deletions
diff --git a/include/utils/NativeHandle.h b/include/utils/NativeHandle.h new file mode 100644 index 000000000..dc49b5181 --- /dev/null +++ b/include/utils/NativeHandle.h @@ -0,0 +1,53 @@ +/* + * 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 diff --git a/libutils/Android.mk b/libutils/Android.mk index 1710d3671..8e9dfd399 100644 --- a/libutils/Android.mk +++ b/libutils/Android.mk @@ -26,6 +26,7 @@ commonSources:= \ LinearAllocator.cpp \ LinearTransform.cpp \ Log.cpp \ + NativeHandle.cpp \ Printer.cpp \ ProcessCallStack.cpp \ PropertyMap.cpp \ diff --git a/libutils/NativeHandle.cpp b/libutils/NativeHandle.cpp new file mode 100644 index 000000000..6632851af --- /dev/null +++ b/libutils/NativeHandle.cpp @@ -0,0 +1,35 @@ +/* + * 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 |