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authorMichael Krelin <hacker@klever.net>2007-04-11 19:22:11 (UTC)
committer Michael Krelin <hacker@klever.net>2007-04-11 19:22:11 (UTC)
commita2d909d2ecaaf80e6d0e063f37fa04ed6934c185 (patch) (side-by-side diff)
tree5f09965678201579c9aacbe2d11db4bc9f930267
parent4c22006b8012bafccf955c0d077971e67107ac35 (diff)
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-rw-r--r--include/konforka/pointer_map.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/konforka/pointer_map.h b/include/konforka/pointer_map.h
index d706e71..00dd486 100644
--- a/include/konforka/pointer_map.h
+++ b/include/konforka/pointer_map.h
@@ -1,105 +1,106 @@
#ifndef __KONFORKA_POINTER_MAP_H
#define __KONFORKA_POINTER_MAP_H
#include <typeinfo>
/**
* @file
* @brief mapping of pointers.
*
* The support for global mapping of pointers. Useful when using third-party
* libraries callbacks when the library does not provide mechanism for passing
* along custom context-dependent data.
*/
namespace konforka {
+ using std::type_info;
/**
* @brief internally used actual implementation of mapping pointer.
*
* @param tf the typeid of the key pointer.
* @param pf the key pointer.
* @param tt the typeid of the value pointer.
* @param pt the value pointer.
*/
void _map_pointer(const type_info& tf,void *pf,const type_info& tt,void *pt);
/**
* @brief internally used actual implementation of destroying mapped
* pointer.
*
* @param tf the typeid of the key pointer.
* @param pf the key pointer.
* @param tt the typeid of the value pointer.
* @param pt the value pointer.
*/
void _unmap_pointer(const type_info& tf,void *pf,const type_info& tt,void *pt);
/**
* @brief internally used actual implementation of retrieving mapped
* pointer.
*
* @param tf the typeid of the key pointer.
* @param pf the key pointer.
* @param tt the typeid of the value pointer.
* @return the value.
*/
void *_mapped_pointer(const type_info& tf,void *pf,const type_info& tt);
/**
* @brief the object, maintaining mapped pointer.
*
* @param from_t the key type.
* @param to_t the value type.
*/
template<typename from_t,typename to_t>
class map_pointer {
public:
/**
* stored key.
*/
from_t _from;
/**
* stored value.
*/
to_t _to;
/**
* flag, specifying that the object is currently mapped.
*/
bool bmapped;
/**
* @brief constructs the object, mapping the key/value pair.
*
* @param f the key.
* @param t the value.
*/
map_pointer(from_t f,to_t t)
: _from(f), _to(t), bmapped(false) {
_map_pointer(typeid(from_t),_from,typeid(to_t),_to);
bmapped=true;
}
/**
* @brief destructor unmaps the key/value pair stored.
*/
~map_pointer() {
if(bmapped)
_unmap_pointer(typeid(from_t),_from,typeid(to_t),_to);
}
};
/**
* The template function for pointer retrieval.
*
* @param from_t the key type.
* @param to_t the value type.
* @param f the key.
* @return the value.
*/
template<typename from_t,typename to_t>
to_t mapped_pointer(from_t f) {
return (to_t)_mapped_pointer(typeid(from_t),f,typeid(to_t));
}
}
#endif /* __KONFORKA_POINTER_MAP_H */
/* vim:set ft=cpp: */