/*
* Copyright ( C ) 2022 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_LIBARTBASE_BASE_SCOPED_CAP_H_
#define ART_LIBARTBASE_BASE_SCOPED_CAP_H_
#include <sys/capability.h>
#include <utility>
#include "android-base/logging.h"
namespace art {
// A wrapper of `cap_t` that automatically calls `cap_free`.
class ScopedCap {
public :
explicit ScopedCap(cap_t cap) : cap_(cap) {}
ScopedCap(const ScopedCap&) = delete ;
ScopedCap& operator =(const ScopedCap&) = delete ;
ScopedCap(ScopedCap&& other) noexcept : cap_(std::exchange(other.cap_, nullptr)) {}
~ScopedCap() {
if (cap_ != nullptr) {
if (cap_free(cap_) != 0 ) {
PLOG(ERROR) << "Failed to call cap_free" ;
}
}
}
cap_t Get() const { return cap_; }
private :
cap_t cap_;
};
} // namespace art
#endif // ART_LIBARTBASE_BASE_SCOPED_CAP_H_
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(vorverarbeitet am 2026-06-29)
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