commitquery: Make a reusable engine thingy

1 files changed, 16 insertions, 0 deletions

diff --git a/commitquery/queries_acquire.go b/commitquery/queries_acquire.go
new file mode 100644
index 00000000..ac7b765c
--- /dev/null
+++ b/commitquery/queries_acquire.go
@@ -0,0 +1,16 @@
+package commitquery
+
+func (queries *Queries) acquire() *query {
+	queries.mu.Lock()
+	defer queries.mu.Unlock()
+
+	count := len(queries.idle)
+	if count == 0 {
+		return newQuery(queries.store, queries.graph)
+	}
+
+	q := queries.idle[count-1]
+	queries.idle = queries.idle[:count-1]
+
+	return q
+}