Implement the two worker functions

src/worker.cpp

@@ -0,0 +1,70 @@
+/* worker.cpp: Implementation of workers in our simulation
+ * Created: 2025-11-27
+ * Author: Aryadev Chavali
+ * License: See end of file
+ * Commentary:
+ */
+
+#include "worker.hpp"
+#include <tuple>
+
+namespace cw::worker
+{
+  using cw::node::Fraction;
+  using cw::node::Node;
+
+  std::tuple<u64, u64> generate_children(NodeAllocator &allocator, u64 index)
+  {
+    Node node = allocator.get_val(index);
+    if (node.left < 0)
+    {
+      allocator.get_ref(index).left = allocator.alloc(Fraction{
+          node.value.numerator, node.value.numerator + node.value.denominator});
+    }
+    if (node.right < 0)
+    {
+      allocator.get_ref(index).right = allocator.alloc(
+          Fraction{node.value.numerator + node.value.denominator,
+                   node.value.denominator});
+    }
+    return {node.left, node.right};
+  }
+
+  void do_iteration(State &state)
+  {
+    state.mutex_queue.lock();
+    if (state.queue.empty())
+    {
+      // Unlock since there isn't any work to be done.
+      state.mutex_queue.unlock();
+      return;
+    }
+    u64 index = state.queue.front();
+    state.queue.pop();
+    state.mutex_queue.unlock();
+
+    u64 left_child, right_child;
+    state.mutex_allocator.lock();
+    std::tie(left_child, right_child) =
+        generate_children(state.allocator, index);
+    state.mutex_allocator.unlock();
+
+    state.mutex_queue.lock();
+    state.queue.push(left_child);
+    state.queue.push(right_child);
+    state.mutex_queue.unlock();
+  }
+} // namespace cw::worker
+
+/* Copyright (C) 2025 Aryadev Chavali
+
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License Version 2 for
+ * details.
+
+ * You may distribute and modify this code under the terms of the GNU General
+ * Public License Version 2, which you should have received a copy of along with
+ * this program.  If not, please go to <https://www.gnu.org/licenses/>.
+
+ */