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// $Id$
/**
* @file Dependency_Sorter.h
* @author William R. Otte <wotte@dre.vanderbilt.edu>
*
*/
#ifndef DEP_SORTER_H
#define DEP_SORTER_H
#include <map>
#include <set>
#include <string>
#include <vector>
namespace DAnCE
{
class Dependency_Sorter
{
public:
typedef std::vector < std::string > INSTALL_ORDER;
typedef std::set < std::string > IH_DEPS;
class Invalid_Install_Order : std::exception {};
/// Add a handler which has no dependencies
void add_nondependent (const std::string &subject);
/// Add a dependency to the map.
void add_dependency (const std::string &subject,
const IH_DEPS &deps);
/// Add a dependency to the map.
void add_dependency (const std::string &subject,
const std::string &install_after);
void calculate_order (INSTALL_ORDER &);
private:
typedef std::map < std::string, IH_DEPS > DEP_MAP;
DEP_MAP dep_map_;
};
}
#endif
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