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arangodb/lib/Basics/WorkItem.h

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////////////////////////////////////////////////////////////////////////////////
/// @brief work item class
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2015 ArangoDB GmbH, Cologne, Germany
///
/// 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
/// @author Copyright 2015, ArangoDB GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGODB_UTILS_WORK_ITEM
#define ARANGODB_UTILS_WORK_ITEM 1
namespace arangodb {
// -----------------------------------------------------------------------------
// --SECTION-- class WorkItem
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////
/// @brief allow unique_ptr to call protected destructor
////////////////////////////////////////////////////////////////////////////////
class WorkItem {
// ---------------------------------------------------------------------------
// --SECTION-- inner classes
// ---------------------------------------------------------------------------
public:
//////////////////////////////////////////////////////////////////////////////
/// @brief unique_ptr_deleter
//////////////////////////////////////////////////////////////////////////////
struct deleter {
deleter() = default;
void operator()(WorkItem *ptr) const { delete ptr; }
};
//////////////////////////////////////////////////////////////////////////////
/// @brief unique_ptr
//////////////////////////////////////////////////////////////////////////////
template <typename X> using uptr = std::unique_ptr<X, deleter>;
// ---------------------------------------------------------------------------
// --SECTION-- constructors and destructors
// ---------------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////////
/// @brief destructor
//////////////////////////////////////////////////////////////////////////////
protected:
virtual ~WorkItem() {}
};
}
#endif
// -----------------------------------------------------------------------------
// --SECTION-- END-OF-FILE
// -----------------------------------------------------------------------------