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-rw-r--r--src/util/pointer.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/util/pointer.h b/src/util/pointer.h
index b659cea0e..f4b70f822 100644
--- a/src/util/pointer.h
+++ b/src/util/pointer.h
@@ -257,3 +257,17 @@ private:
unsigned int *refcount;
};
+// This class is not thread-safe!
+class IntrusiveReferenceCounted {
+public:
+ IntrusiveReferenceCounted() = default;
+ virtual ~IntrusiveReferenceCounted() = default;
+ void grab() noexcept { ++m_refcount; }
+ void drop() noexcept { if (--m_refcount == 0) delete this; }
+
+ // Preserve own reference count.
+ IntrusiveReferenceCounted(const IntrusiveReferenceCounted &) {}
+ IntrusiveReferenceCounted &operator=(const IntrusiveReferenceCounted &) { return *this; }
+private:
+ u32 m_refcount = 1;
+};