Harden backup import and restore coverage

1 files changed, 19 insertions, 0 deletions

diff --git a/src/mcp/tools/common/memory_index.c b/src/mcp/tools/common/memory_index.c
index e3841e2..32a97d1 100644
--- a/src/mcp/tools/common/memory_index.c
+++ b/src/mcp/tools/common/memory_index.c
@@ -165,6 +165,25 @@ tiny_memory_index_build(const tiny_store_t *store)
   return index;
 }
 
+uint64_t
+tiny_memory_index_memory_estimate(const tiny_memory_index_t *index)
+{
+  uint64_t total;
+  size_t position;
+  if (!index)
+    {
+      return 0;
+    }
+  total = sizeof(*index) + index->count * sizeof(*index->buckets)
+          + index->slot_capacity * sizeof(*index->slots);
+  for (position = 0; position < index->count; ++position)
+    {
+      total += index->buckets[position].incoming_capacity
+               * sizeof(*index->buckets[position].incoming);
+    }
+  return total;
+}
+
 void
 tiny_memory_index_free(tiny_memory_index_t *index)
 {