diff foosdk/sdk/pfc/ptrholder.h @ 1:20d02a178406 default tip

*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/pfc/ptrholder.h	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,86 @@
+#pragma once
+
+// ptrholder_t<> : std::unique_ptr<> equivalent
+// Obsolete, use std::unique_ptr<> instead
+// Warning: release() deletes instead of letting go of ownership, contrary to std::unique_ptr<>
+
+namespace pfc {
+	class releaser_delete {
+	public:
+		template<typename T> static void release(T* p_ptr) { delete p_ptr; }
+	};
+	class releaser_delete_array {
+	public:
+		template<typename T> static void release(T* p_ptr) { delete[] p_ptr; }
+	};
+	class releaser_free {
+	public:
+		static void release(void* p_ptr) { free(p_ptr); }
+	};
+
+	//! Assumes t_freefunc to never throw exceptions.
+	template<typename T, typename t_releaser = releaser_delete >
+	class ptrholder_t {
+	private:
+		typedef ptrholder_t<T, t_releaser> t_self;
+	public:
+		inline ptrholder_t(T* p_ptr) : m_ptr(p_ptr) {}
+		inline ptrholder_t() : m_ptr(NULL) {}
+		inline ~ptrholder_t() { t_releaser::release(m_ptr); }
+		inline bool is_valid() const { return m_ptr != NULL; }
+		inline bool is_empty() const { return m_ptr == NULL; }
+		inline T* operator->() const { return m_ptr; }
+		inline T* get_ptr() const { return m_ptr; }
+		inline void release() { t_releaser::release(replace_null_t(m_ptr));; }
+		inline void attach(T* p_ptr) { release(); m_ptr = p_ptr; }
+		inline const t_self& operator=(T* p_ptr) { set(p_ptr); return *this; }
+		inline T* detach() { return pfc::replace_null_t(m_ptr); }
+		inline T& operator*() const { return *m_ptr; }
+
+		inline t_self& operator<<(t_self& p_source) { attach(p_source.detach()); return *this; }
+		inline t_self& operator>>(t_self& p_dest) { p_dest.attach(detach()); return *this; }
+
+		//deprecated
+		inline void set(T* p_ptr) { attach(p_ptr); }
+
+		ptrholder_t(t_self&& other) {m_ptr = other.detach(); }
+		const t_self& operator=(t_self&& other) { attach(other.detach()); return *this; }
+	private:
+		ptrholder_t(const t_self&) = delete;
+		const t_self& operator=(const t_self&) = delete;
+
+		T* m_ptr;
+	};
+
+	//avoid "void&" breakage
+	template<typename t_releaser>
+	class ptrholder_t<void, t_releaser> {
+	private:
+		typedef void T;
+		typedef ptrholder_t<T, t_releaser> t_self;
+	public:
+		inline ptrholder_t(T* p_ptr) : m_ptr(p_ptr) {}
+		inline ptrholder_t() : m_ptr(NULL) {}
+		inline ~ptrholder_t() { t_releaser::release(m_ptr); }
+		inline bool is_valid() const { return m_ptr != NULL; }
+		inline bool is_empty() const { return m_ptr == NULL; }
+		inline T* operator->() const { return m_ptr; }
+		inline T* get_ptr() const { return m_ptr; }
+		inline void release() { t_releaser::release(replace_null_t(m_ptr));; }
+		inline void attach(T* p_ptr) { release(); m_ptr = p_ptr; }
+		inline const t_self& operator=(T* p_ptr) { set(p_ptr); return *this; }
+		inline T* detach() { return pfc::replace_null_t(m_ptr); }
+
+		inline t_self& operator<<(t_self& p_source) { attach(p_source.detach()); return *this; }
+		inline t_self& operator>>(t_self& p_dest) { p_dest.attach(detach()); return *this; }
+
+		//deprecated
+		inline void set(T* p_ptr) { attach(p_ptr); }
+	private:
+		ptrholder_t(const t_self&) = delete;
+		const t_self& operator=(const t_self&) = delete;
+
+		T* m_ptr;
+	};
+
+}
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