X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fkernel%2Fao.h;h=6ed0299e2d707baa607a515394ab4f4eccb7988b;hb=54f8d53584d0a902676b441cd122c01cd54f2283;hp=a794ba710e62d584d32ce57c5d131e85c379981d;hpb=36c6d74048283d27c890054814eee2cb39b7cbb7;p=fw%2Faltos

diff --git a/src/kernel/ao.h b/src/kernel/ao.h
index a794ba71..6ed0299e 100644
--- a/src/kernel/ao.h
+++ b/src/kernel/ao.h
@@ -820,6 +820,8 @@ struct ao_fifo {
 } while(0)
 
 #define ao_fifo_full(f)		((((f).insert + 1) & (AO_FIFO_SIZE-1)) == (f).remove)
+#define ao_fifo_mostly(f)	((((f).insert - (f).remove) & (AO_FIFO_SIZE-1)) >= (AO_FIFO_SIZE * 3 / 4))
+#define ao_fifo_barely(f)	((((f).insert - (f).remove) & (AO_FIFO_SIZE-1)) >= (AO_FIFO_SIZE * 1 / 4))
 #define ao_fifo_empty(f)	((f).insert == (f).remove)
 
 #if PACKET_HAS_MASTER || PACKET_HAS_SLAVE