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-rw-r--r--ext/uri-unmap.lv2/uri-unmap.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/ext/uri-unmap.lv2/uri-unmap.h b/ext/uri-unmap.lv2/uri-unmap.h
index 11c9f53..d6cb900 100644
--- a/ext/uri-unmap.lv2/uri-unmap.h
+++ b/ext/uri-unmap.lv2/uri-unmap.h
@@ -66,6 +66,9 @@ typedef struct {
* the same arguments is guaranteed to return the same value over the life
* of a plugin instance (though the same ID may return different values
* with a different map parameter).
+ *
+ * This function may be called from any non-realtime thread, possibly
+ * concurrently (hosts may simply use a mutex to meet these requirements).
*/
const char* (*id_to_uri)(LV2_URI_Unmap_Callback_Data callback_data,
const char* map,