X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/c4510182f3c02e390184bee518940e325f064b20..a9cfeffd21239290ab1da46a952fe5789ae3f6de:/lunaix-os/kernel/ds/fifo.c

diff --git a/lunaix-os/kernel/ds/fifo.c b/lunaix-os/kernel/ds/fifo.c
index 7f34bf6..252cd2d 100644
--- a/lunaix-os/kernel/ds/fifo.c
+++ b/lunaix-os/kernel/ds/fifo.c
@@ -15,6 +15,16 @@ fifo_init(struct fifo_buf* buf, void* data_buffer, size_t buf_size, int flags)
     mutex_init(&buf->lock);
 }
 
+void
+fifo_clear(struct fifo_buf* fbuf)
+{
+    mutex_lock(&fbuf->lock);
+    fbuf->rd_pos = 0;
+    fbuf->wr_pos = 0;
+    fbuf->free_len = fbuf->size;
+    mutex_unlock(&fbuf->lock);
+}
+
 int
 fifo_backone(struct fifo_buf* fbuf)
 {