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[Qemu-devel] [PATCH v5 2/4] util/fifo8: clear fifo head upon reset
From: |
Beniamino Galvani |
Subject: |
[Qemu-devel] [PATCH v5 2/4] util/fifo8: clear fifo head upon reset |
Date: |
Thu, 30 Jan 2014 23:02:05 +0100 |
To improve the predictability of fifo8_pop_buf(), the fifo head is set
to start of data buffer upon a reset so that the first call to the
function will be able to retrieve all data in the fifo.
Signed-off-by: Beniamino Galvani <address@hidden>
---
util/fifo8.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/util/fifo8.c b/util/fifo8.c
index a7503c2..6a43482 100644
--- a/util/fifo8.c
+++ b/util/fifo8.c
@@ -89,6 +89,7 @@ const uint8_t *fifo8_pop_buf(Fifo8 *fifo, uint32_t max,
uint32_t *num)
void fifo8_reset(Fifo8 *fifo)
{
fifo->num = 0;
+ fifo->head = 0;
}
bool fifo8_is_empty(Fifo8 *fifo)
--
1.7.10.4