1 files changed, 9 insertions, 0 deletions
diff --git a/src/Buffer.c b/src/Buffer.c
index 69e8ea3..8f8c361 100644
--- a/src/Buffer.c
+++ b/src/Buffer.c
@@ -302,3 +302,12 @@ BH_IO *BH_BufferNew(BH_IO *device,
 
     return (BH_IO*)buffer;
 }
+
+
+int BH_IOIsBuffer(BH_IO *device)
+{
+    if (!device)
+        return 0;
+
+    return device->callback == (BH_IOCallback)bufferCallback;
+}