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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/common/ref.h | |
parent | Initial commit. (diff) | |
download | ceph-upstream/16.2.11+ds.tar.xz ceph-upstream/16.2.11+ds.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/common/ref.h')
-rw-r--r-- | src/common/ref.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/common/ref.h b/src/common/ref.h new file mode 100644 index 000000000..055c9a07a --- /dev/null +++ b/src/common/ref.h @@ -0,0 +1,34 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef COMMON_REF_H +#define COMMON_REF_H + +#include <boost/intrusive_ptr.hpp> + +namespace ceph { +template<typename T> using ref_t = boost::intrusive_ptr<T>; +template<typename T> using cref_t = boost::intrusive_ptr<const T>; +template<class T, class U> +ref_t<T> ref_cast(const ref_t<U>& r) noexcept { + return static_cast<T*>(r.get()); +} +template<class T, class U> +ref_t<T> ref_cast(ref_t<U>&& r) noexcept { + return {static_cast<T*>(r.detach()), false}; +} +template<class T, class U> +cref_t<T> ref_cast(const cref_t<U>& r) noexcept { + return static_cast<const T*>(r.get()); +} +template<class T, typename... Args> +ceph::ref_t<T> make_ref(Args&&... args) { + return {new T(std::forward<Args>(args)...), false}; +} +} + +// Friends cannot be partial specializations: https://en.cppreference.com/w/cpp/language/friend +#define FRIEND_MAKE_REF(C) \ +template<class T, typename... Args> friend ceph::ref_t<T> ceph::make_ref(Args&&... args) + +#endif |