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/*
* Simple resource management base classes
* Header file
*
* $Id$
*/
#ifndef RESOURCE_H
#define RESOURCE_H
#include <exception.h>
/* EXCEPTIONS */
class resource_exception : public exception {
public:
resource_exception(char *msg) : exception(msg) {}
resource_exception(char *fmt, int i) : exception(fmt, i) {}
};
/* CLASSES */
// TODO:
// - resource dependencies
class resource {
int ref; // reference counter
protected:
virtual void load()=0;
virtual void unload()=0;
public:
resource();
virtual ~resource();
// Dynamic loading stuff
int is_loaded() { return ref>0; }
void alloc();
void dealloc();
};
template <class res_t>
class eresource : public resource {
res_t res;
protected:
virtual void load() {}
virtual void unload() {}
public:
eresource(res_t r) : res(r) {}
~eresource() {}
operator res_t () { return res; }
};
class resourceman {
int num_static_ids;
resource **staticres; // static resources [O[O]]
public:
resourceman(int num_static_ids);
~resourceman();
void init_resource(int id, resource *r); // [O]
resource *allocate(int id); // [R]()
void deallocate(int id);
};
#endif // RESOURCE_H
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