MT#55283 add typed GPtrArray primitives

Change-Id: I8552e75ec8f1b8c3a96163944891631268383cb7

lib/containers.h

@@ -361,4 +361,42 @@
 	})
 
 
+#define TYPED_GPTRARRAY_FULL(type_name, contained_type, free_func) \
+	typedef union { \
+		GPtrArray a; \
+		struct { \
+			contained_type **pdata; \
+			unsigned int len; \
+		}; \
+	} type_name; \
+	static_assert(sizeof(GPtrArray) == sizeof(type_name), "sizeof ptrarray type mismatch"); \
+	static_assert(G_STRUCT_OFFSET(GPtrArray, pdata) == G_STRUCT_OFFSET(type_name, pdata), \
+			"pdata offset mismatch"); \
+	static_assert(G_STRUCT_OFFSET(GPtrArray, len) == G_STRUCT_OFFSET(type_name, len), \
+			"len offset mismatch"); \
+	static inline type_name *type_name##_new_sized(unsigned int len) { \
+		void (*func)(contained_type *) = free_func; \
+		return (type_name *) g_ptr_array_new_full(len, (GDestroyNotify) func); \
+	} \
+	static inline type_name *type_name##_new(void) { \
+		return type_name##_new_sized(0); \
+	}
+
+#define TYPED_GPTRARRAY(type_name, contained_type) \
+	TYPED_GPTRARRAY_FULL(type_name, contained_type, NULL)
+
+#define t_ptr_array_set_size(A, l) ({ \
+		g_ptr_array_set_size(&(A)->a, l); \
+	})
+
+#define t_ptr_array_free(A, fd) ({ \
+		g_ptr_array_free(&(A)->a, fd); \
+	})
+
+#define t_ptr_array_add(A, e) ({ \
+		__typeof__(*(A)->pdata) __e = e; \
+		g_ptr_array_add(&(A)->a, __e); \
+	})
+
+
 #endif