1 files changed, 46 insertions, 0 deletions
diff --git a/src/util/funclog.cpp b/src/util/funclog.cpp
new file mode 100644
index 0000000..5597fea
--- /dev/null
+++ b/src/util/funclog.cpp
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "funclog.h"
+
+namespace Inkscape {
+namespace Util {
+
+void FuncLog::exec()
+{
+    for (auto h = first; h; destroy_and_advance(h)) {
+        try {
+            (*h)();
+        } catch (...) {
+            destroy_from(h);
+            reset();
+            std::rethrow_exception(std::current_exception());
+        }
+    }
+    reset();
+}
+
+void FuncLog::destroy_and_advance(Header *&h) noexcept
+{
+    auto next = h->next;
+    h->~Header();
+    h = next;
+}
+
+void FuncLog::reset() noexcept
+{
+    pool.free_all();
+    first = nullptr;
+    lastnext = &first;
+}
+
+void FuncLog::movefrom(FuncLog &other) noexcept
+{
+    pool = std::move(other.pool);
+    first = other.first;
+    lastnext = first ? other.lastnext : &first;
+
+    other.first = nullptr;
+    other.lastnext = &other.first;
+}
+
+} // namespace Util
+} // namespace Inkscape