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// -*- C++ -*-
//
// DynamicLoader.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2011 Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef ThePEG_DynamicLoader_H
#define ThePEG_DynamicLoader_H
// This is the declaration of the DynamicLoader class.
#include "ThePEG/Config/ThePEG.h"
namespace ThePEG {
/**
* <code>DynamicLoader</code> is the general interface to the dynamic
* loader functions of the underlying operating system. Currently it
* only works on Linux.
*
* @see ClassTraits
* @see ClassDescription
* @see DescriptionList
* @see PersistentIStream
*/
class DynamicLoader {
public:
/**
* The actual load command used on the current platform.
*/
static bool loadcmd(string);
/**
* Try to load the file given as argument. If the filename does not
* begin with a '/', try to prepend the paths one at the time until
* success. If all fail try without prepending a path.
* @return true if the loading succeeded, false otherwise.
*/
static bool load(string file);
/**
* Add a path to the bottom of the list of directories to seach for
* dynaically linkable libraries.
*/
static void appendPath(string);
/**
* Add a path to the top of the list of directories to seach for
* dynaically linkable libraries.
*/
static void prependPath(string);
/**
* Return the last error message issued from the platforms loader.
*/
static string lastErrorMessage;
/**
* Insert the name of the given library with correct version numbers
* appended, in the corresponding map.
*/
static void dlname(string);
/**
* Given a list of generic library names, return the same list with
* appended version numbers where available.
*/
static string dlnameversion(string libs);
/**
* Return the full list of directories to seach for dynaically
* linkable libraries.
*/
static const vector<string> & allPaths();
/**
* Return the list of appended directories to seach for dynaically
* linkable libraries.
*/
static const vector<string> & appendedPaths();
/**
* Return the list of prepended directories to seach for dynaically
* linkable libraries.
*/
static const vector<string> & prependedPaths();
private:
/**
* The list of directories to seach for dynaically linkable
* libraries.
*/
static vector<string> paths;
/**
* The list of prepended directories to seach for dynaically linkable
* libraries.
*/
static vector<string> prepaths;
/**
* The list of appended directories to seach for dynaically linkable
* libraries.
*/
static vector<string> apppaths;
/**
* Used to initialize the paths vector from the ThePEG_PATH
* environment.
*/
static vector<string> defaultPaths();
/**
* Map of names of dynamic libraries with correct version numbers
* indexed by their generic names.
*/
static map<string,string> versionMap;
};
}
#endif /* ThePEG_DynamicLoader_H */
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