ctrl-c not working when search restarted

coin-or · Feb 21, 2025 · b5a21d4 · b5a21d4
1 parent fee4149
commit b5a21d4
Show file tree

Hide file tree

Showing 2 changed files with 18 additions and 0 deletions.
diff --git a/src/CbcModel.cpp b/src/CbcModel.cpp
@@ -5515,6 +5515,19 @@ void CbcModel::branchAndBound(int doStatistics)
         lastEvery1000 = numberNodes_ + 1000;
       }
       bool redoTree = nodeCompare_->every1000Nodes(this, numberNodes_);
+      // check for ctrl-c
+      if (parentModel_ && (specialOptions_&2048)==0) {
+	// in restarted search
+	CbcModel * model = parentModel_;
+	while (model) {
+	  if (model->eventHappened()) {
+	    sayEventHappened();
+	    setProblemStatus(5);
+	    break;
+	  }
+	  model = model->parentModel();
+	}
+      }
 #ifdef CHECK_CUT_SIZE
       verifyCutSize(tree_, *this);
 #endif

diff --git a/src/CbcModel.hpp b/src/CbcModel.hpp
@@ -2180,6 +2180,11 @@ class CBCLIB_EXPORT CbcModel {
   {
     eventHappened_ = true;
   }
+  /// See if event happened
+  inline bool eventHappened()
+  {
+    return eventHappened_;
+  }
   /// Says if normal solver i.e. has well defined CoinPackedMatrix
   inline bool normalSolver() const
   {