diff options
| -rw-r--r-- | src/gallium/state_trackers/clover/util/pointer.hpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/clover/util/pointer.hpp b/src/gallium/state_trackers/clover/util/pointer.hpp index 59c6e6e9f64..b790fd451c4 100644 --- a/src/gallium/state_trackers/clover/util/pointer.hpp +++ b/src/gallium/state_trackers/clover/util/pointer.hpp @@ -53,6 +53,51 @@ namespace clover { }; /// + /// Simple reference to a clover::ref_counter object. Unlike + /// clover::intrusive_ptr and clover::intrusive_ref, it does nothing + /// special when the reference count drops to zero. + /// + class ref_holder { + public: + ref_holder(ref_counter &o) : p(&o) { + p->retain(); + } + + ref_holder(const ref_holder &ref) : + ref_holder(*ref.p) { + } + + ref_holder(ref_holder &&ref) : + p(ref.p) { + ref.p = NULL; + } + + ~ref_holder() { + if (p) + p->release(); + } + + ref_holder & + operator=(ref_holder ref) { + std::swap(ref.p, p); + return *this; + } + + bool + operator==(const ref_holder &ref) const { + return p == ref.p; + } + + bool + operator!=(const ref_holder &ref) const { + return p != ref.p; + } + + private: + ref_counter *p; + }; + + /// /// Intrusive smart pointer for objects that implement the /// clover::ref_counter interface. /// |