[cmake-commits] king committed cmComputeLinkInformation.cxx 1.6 1.7 cmComputeLinkInformation.h 1.4 1.5

[cmake-commits at cmake.org]

Update of /cvsroot/CMake/CMake/Source
In directory public:/mounts/ram/cvs-serv8440/Source

Modified Files:
	cmComputeLinkInformation.cxx cmComputeLinkInformation.h 
Log Message:
BUG: Fix cmComputeLinkInformation cycle detection.


Index: cmComputeLinkInformation.cxx
===================================================================
RCS file: /cvsroot/CMake/CMake/Source/cmComputeLinkInformation.cxx,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -d -r1.6 -r1.7
--- cmComputeLinkInformation.cxx	23 Jan 2008 20:22:38 -0000	1.6
+++ cmComputeLinkInformation.cxx	23 Jan 2008 20:56:17 -0000	1.7
@@ -1025,7 +1025,7 @@
     }
 
   // Add link directories specified for the target.
-  std::vector<std::string> const& dirs = this->GetDirectories();
+  std::vector<std::string> const& dirs = this->Target->GetLinkDirectories();
   for(std::vector<std::string>::const_iterator di = dirs.begin();
       di != dirs.end(); ++di)
     {
@@ -1168,39 +1168,41 @@
 {
   // Allow a cycle to be diagnosed once.
   this->CycleDiagnosed = false;
+  this->WalkId = 0;
 
   // Iterate through the directories in the original order.
   for(unsigned int i=0; i < this->RuntimeDirectories.size(); ++i)
     {
-    this->VisitRuntimeDirectory(i, true);
+    // Start a new DFS from this node.
+    ++this->WalkId;
+    this->VisitRuntimeDirectory(i);
     }
 }
 
 //----------------------------------------------------------------------------
-void cmComputeLinkInformation::VisitRuntimeDirectory(unsigned int i,
-                                                     bool top)
+void cmComputeLinkInformation::VisitRuntimeDirectory(unsigned int i)
 {
   // Skip nodes already visited.
   if(this->RuntimeDirectoryVisited[i])
     {
-    if(!top)
+    if(this->RuntimeDirectoryVisited[i] == this->WalkId)
       {
-      // We have reached a previously visited node but were not called
-      // to start a new section of the graph.  There is a cycle.
+      // We have reached a node previously visited on this DFS.
+      // There is a cycle.
       this->DiagnoseCycle();
       }
     return;
     }
 
-  // We are not visiting this node so mark it.
-  this->RuntimeDirectoryVisited[i] = 1;
+  // We are now visiting this node so mark it.
+  this->RuntimeDirectoryVisited[i] = this->WalkId;
 
   // Visit the neighbors of the node first.
   RuntimeConflictList const& clist = this->RuntimeConflictGraph[i];
   for(RuntimeConflictList::const_iterator j = clist.begin();
       j != clist.end(); ++j)
     {
-    this->VisitRuntimeDirectory(j->first, false);
+    this->VisitRuntimeDirectory(j->first);
     }
 
   // Now that all directories required to come before this one have

Index: cmComputeLinkInformation.h
===================================================================
RCS file: /cvsroot/CMake/CMake/Source/cmComputeLinkInformation.h,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -d -r1.4 -r1.5
--- cmComputeLinkInformation.h	23 Jan 2008 20:22:38 -0000	1.4
+++ cmComputeLinkInformation.h	23 Jan 2008 20:56:17 -0000	1.5
@@ -146,7 +146,7 @@
   std::set<cmStdString> LibraryRuntimeInfoEmmitted;
   std::vector<std::string> RuntimeDirectories;
   std::map<cmStdString, int> RuntimeDirectoryIndex;
-  std::vector<char> RuntimeDirectoryVisited;
+  std::vector<int> RuntimeDirectoryVisited;
   void AddLibraryRuntimeInfo(std::string const& fullPath, cmTarget* target);
   void AddLibraryRuntimeInfo(std::string const& fullPath,
                              const char* soname = 0);
@@ -155,9 +155,10 @@
   void FindConflictingLibraries();
   void FindDirectoriesForLib(unsigned int lri);
   void OrderRuntimeSearchPath();
-  void VisitRuntimeDirectory(unsigned int i, bool top);
+  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.