2851dbad53
private/shared. * Made AddReference() and CountReferences() inlines. * The registrar is now using the private Referenceable version in libbe.so. * Minor cleanup. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21767 a95241bf-73f2-0310-859d-f6bbb57e9c96
135 lines
2.1 KiB
C++
135 lines
2.1 KiB
C++
/*
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* Copyright 2001-2007, Ingo Weinhold, bonefish@users.sf.net. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _AUTO_DELETER_H
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#define _AUTO_DELETER_H
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/*! Scope-based automatic deletion of objects/arrays.
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ObjectDeleter - deletes an object
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ArrayDeleter - deletes an array
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MemoryDeleter - free()s malloc()ed memory
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*/
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#include <stdlib.h>
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namespace BPrivate {
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// AutoDeleter
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template<typename C, typename DeleteFunc>
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class AutoDeleter {
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public:
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inline AutoDeleter()
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: fObject(NULL)
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{
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}
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inline AutoDeleter(C *object)
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: fObject(object)
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{
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}
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inline ~AutoDeleter()
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{
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fDelete(fObject);
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}
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inline void SetTo(C *object)
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{
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if (object != fObject) {
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fDelete(fObject);
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fObject = object;
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}
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}
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inline void Unset()
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{
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SetTo(NULL);
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}
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inline void Delete()
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{
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SetTo(NULL);
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}
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inline C *Get() const
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{
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return fObject;
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}
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inline C *Detach()
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{
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C *object = fObject;
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fObject = NULL;
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return object;
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}
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private:
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C *fObject;
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DeleteFunc fDelete;
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};
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// ObjectDeleter
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template<typename C>
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struct ObjectDelete
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{
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inline void operator()(C *object)
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{
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delete object;
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}
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};
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template<typename C>
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struct ObjectDeleter : AutoDeleter<C, ObjectDelete<C> >
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{
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ObjectDeleter() : AutoDeleter<C, ObjectDelete<C> >() {}
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ObjectDeleter(C *object) : AutoDeleter<C, ObjectDelete<C> >(object) {}
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};
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// ArrayDeleter
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template<typename C>
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struct ArrayDelete
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{
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inline void operator()(C *array)
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{
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delete[] array;
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}
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};
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template<typename C>
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struct ArrayDeleter : AutoDeleter<C, ArrayDelete<C> >
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{
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ArrayDeleter() : AutoDeleter<C, ArrayDelete<C> >() {}
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ArrayDeleter(C *array) : AutoDeleter<C, ArrayDelete<C> >(array) {}
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};
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// MemoryDeleter
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struct MemoryDelete
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{
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inline void operator()(void *memory)
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{
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free(memory);
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}
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};
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struct MemoryDeleter : AutoDeleter<void, MemoryDelete >
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{
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MemoryDeleter() : AutoDeleter<void, MemoryDelete >() {}
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MemoryDeleter(void *memory) : AutoDeleter<void, MemoryDelete >(memory) {}
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};
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} // namespace BPrivate
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using BPrivate::ObjectDeleter;
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using BPrivate::ArrayDeleter;
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using BPrivate::MemoryDeleter;
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#endif // _AUTO_DELETER_H
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