X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=antikythera;a=blobdiff_plain;f=src%2Fdataset.h;fp=src%2Fdataset.h;h=a4736c4c6da748af843d9a3db207c845bf592f88;hp=0000000000000000000000000000000000000000;hb=ccc1a688b59e25bb934a0d3e2bbf477960068d4f;hpb=080d7a779d43f549fc16c44e709cbf5989180fdf

diff --git a/src/dataset.h b/src/dataset.h
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+++ b/src/dataset.h
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+/** DataSet is a generic resource database with fast O(logn) lookups by name
+ * it can be used for texture managers, mesh managers, sound effect managers etc
+ *
+ * The constructor takes a load function and a destructor function to be called
+ * when a nonexistent resource is requested and needs to be loaded, and when
+ * the DataSet is destroyed. The destructor is optional and can be set to null
+ * if not needed.
+ *
+ * Requesting a resource works by simply calling get, example:
+ * ----------------------------------------------------------
+ * \code
+ * Texture *load_texture(const char *fname);
+ * void free_texture(Texture *tex);
+ *
+ * DataSet<Texture*> texman(load_texture, free_texture);
+ * Texture *foo = texman.get("foo.png");
+ * \endcode
+ */
+#ifndef DATASET_H_
+#define DATASET_H_
+
+#include <string>
+#include <map>
+#include <resman.h>
+
+template <typename T>
+class DataSet {
+protected:
+	mutable std::map<std::string, T> data;
+	mutable struct resman *rman;
+
+	T (*create)();
+	bool (*load)(T, const char*);
+	bool (*done)(T);
+	void (*destroy)(T);
+
+	static int dataset_load_func(const char *fname, int id, void *cls);
+	static int dataset_done_func(int id, void *cls);
+	static void dataset_destroy_func(int id, void *cls);
+
+public:
+	DataSet(T (*create_func)(), bool (*load_func)(T, const char*), bool (*done_func)(T) = 0, void (*destr_func)(T) = 0);
+	~DataSet();
+
+	void clear();
+	void update();
+
+	T get(const char *name) const;
+};
+
+#include "dataset.inl"
+
+#endif	// DATASET_H_