From d7fcc9a0c79f186118e0c20804af1f7467fc4580 Mon Sep 17 00:00:00 2001
From: Fabian Kosmale <0inkane@googlemail.com>
Date: Thu, 29 Aug 2019 18:33:13 +0200
Subject: FcSolveSolver: cleanup ressources

The FcSolveSolver did not call its free function in patsolve, leading to
ressource exhaustion.

BUG: 395624
---
 patsolve/abstract_fc_solve_solver.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/patsolve/abstract_fc_solve_solver.cpp b/patsolve/abstract_fc_solve_solver.cpp
index c82aee1..725c703 100644
--- a/patsolve/abstract_fc_solve_solver.cpp
+++ b/patsolve/abstract_fc_solve_solver.cpp
@@ -55,6 +55,16 @@ SolverInterface::ExitStatus FcSolveSolver::patsolve( int _max_positions )
 
     init();
 
+    // call free once the function ends. ### Replace this mess with QScopeGuard once we can use Qt 5.12
+    auto cleanup = [this](){this->free();};
+    using CleanupFunction = decltype (cleanup);
+    struct CleanupHandler {
+        CleanupHandler(CleanupFunction cleanup) : m_cleanup(std::move(cleanup)) {}
+        ~CleanupHandler() { m_cleanup();}
+
+        CleanupFunction m_cleanup;
+    } cleaner(cleanup);
+
     int no_use = 0;
     int num_moves = 0;
     const auto get_possible_moves__ret = get_possible_moves(&no_use, &num_moves);
-- 
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