72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef VLCSCOPEDREF_H
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#define VLCSCOPEDREF_H
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#include "config.h"
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#include <vlc/vlc.h>
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template<typename T>
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class VlcScopedRef {
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public:
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explicit VlcScopedRef(T *ptr);
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~VlcScopedRef();
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operator T *() const { return ptr_; }
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operator bool() const { return ptr_; }
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T *operator->() const { return ptr_; }
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private:
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VlcScopedRef(VlcScopedRef&) {}
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VlcScopedRef &operator =(const VlcScopedRef&) { return *this; }
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T *ptr_;
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};
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#define VLCSCOPEDREF_DEFINE2(type, dtor) \
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template <> void VlcScopedRef_Release<libvlc_##type##_t>(libvlc_##type##_t *ptr) { \
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dtor(ptr); \
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}
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#define VLCSCOPEDREF_DEFINE(type) VLCSCOPEDREF_DEFINE2(type, libvlc_##type##_release)
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template<typename T>
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void VlcScopedRef_Release(T *ptr);
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VLCSCOPEDREF_DEFINE2(instance, libvlc_release)
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VLCSCOPEDREF_DEFINE(media_player)
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VLCSCOPEDREF_DEFINE(media)
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template<> void VlcScopedRef_Release<char>(char *ptr) { free(ptr); }
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template<typename T>
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VlcScopedRef<T>::VlcScopedRef(T *ptr)
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: ptr_(ptr) {
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}
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template<typename T>
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VlcScopedRef<T>::~VlcScopedRef() {
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VlcScopedRef_Release(ptr_);
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}
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#endif // VLCSCOPEDREF_H
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