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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef cmOrderRuntimeDirectories_h
#define cmOrderRuntimeDirectories_h
#include "cmStandardIncludes.h"
class cmGlobalGenerator;
/** \class cmOrderRuntimeDirectories
* \brief Compute a safe runtime path order for a set of shared libraries.
*/
class cmOrderRuntimeDirectories
{
public:
cmOrderRuntimeDirectories(cmGlobalGenerator* gg, const char* name,
const char* purpose);
void AddLibrary(std::string const& fullPath, const char* soname = 0);
void AddDirectories(std::vector<std::string> const& extra);
std::vector<std::string> const& GetRuntimePath();
private:
cmGlobalGenerator* GlobalGenerator;
std::string Name;
std::string Purpose;
bool Computed;
std::vector<std::string> RuntimeSearchPath;
// Runtime path computation.
struct LibraryRuntimeEntry
{
// The file name of the library.
std::string FileName;
// The soname of the shared library if it is known.
std::string SOName;
// The directory in which the library is supposed to be found.
std::string Directory;
// The index assigned to the directory.
int DirectoryIndex;
};
bool RuntimeSearchPathComputed;
std::vector<LibraryRuntimeEntry> LibraryRuntimeInfo;
std::vector<std::string> UserDirectories;
std::set<cmStdString> LibraryRuntimeInfoEmmitted;
std::vector<std::string> RuntimeDirectories;
std::map<cmStdString, int> RuntimeDirectoryIndex;
std::vector<int> RuntimeDirectoryVisited;
void CollectRuntimeDirectories();
int AddRuntimeDirectory(std::string const& dir);
void FindConflictingLibraries();
void FindDirectoriesForLib(unsigned int lri);
void OrderRuntimeSearchPath();
void VisitRuntimeDirectory(unsigned int i);
void DiagnoseCycle();
bool CycleDiagnosed;
int WalkId;
// Adjacency-list representation of runtime path ordering graph.
// This maps from directory to those that must come *before* it.
// Each entry that must come before is a pair. The first element is
// the index of the directory that must come first. The second
// element is the index of the runtime library that added the
// constraint.
typedef std::pair<int, int> RuntimeConflictPair;
struct RuntimeConflictList: public std::vector<RuntimeConflictPair> {};
std::vector<RuntimeConflictList> RuntimeConflictGraph;
};
#endif
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