1 files changed, 60 insertions, 0 deletions
diff --git a/libs/cairo/src/cairo-freed-pool.c b/libs/cairo/src/cairo-freed-pool.c
new file mode 100644
index 000000000..c65f4626d
--- /dev/null
+++ b/libs/cairo/src/cairo-freed-pool.c
@@ -0,0 +1,60 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "cairoint.h"
+
+#include "cairo-freed-pool-private.h"
+
+#if HAS_FREED_POOL
+
+void *
+_freed_pool_get_search (freed_pool_t *pool)
+{
+    void *ptr;
+    int i;
+
+    for (i = ARRAY_LENGTH (pool->pool); i--;) {
+	ptr = _atomic_fetch (&pool->pool[i]);
+	if (ptr != NULL) {
+	    _cairo_atomic_int_set_relaxed (&pool->top, i);
+	    return ptr;
+	}
+    }
+
+    /* empty */
+    _cairo_atomic_int_set_relaxed (&pool->top, 0);
+    return NULL;
+}
+
+void
+_freed_pool_put_search (freed_pool_t *pool, void *ptr)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_LENGTH (pool->pool); i++) {
+	if (_atomic_store (&pool->pool[i], ptr)) {
+	    _cairo_atomic_int_set_relaxed (&pool->top, i + 1);
+	    return;
+	}
+    }
+
+    /* full */
+    _cairo_atomic_int_set_relaxed (&pool->top, i);
+    free (ptr);
+}
+
+void
+_freed_pool_reset (freed_pool_t *pool)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_LENGTH (pool->pool); i++) {
+	free (pool->pool[i]);
+	pool->pool[i] = NULL;
+    }
+
+    _cairo_atomic_int_set_relaxed (&pool->top, 0);
+}
+
+#endif