hw: move fifo.[ch] to libqemuutil

fifo.c is generic code that can be easily unit tested.  So it
belongs in libqemuutil.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 78 deletions

diff --git a/hw/fifo.c b/hw/fifo.c
deleted file mode 100644
index 68a955a77b..0000000000
--- a/hw/fifo.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Generic FIFO component, implemented as a circular buffer.
- *
- * Copyright (c) 2012 Peter A. G. Crosthwaite
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "fifo.h"
-
-void fifo8_create(Fifo8 *fifo, uint32_t capacity)
-{
-    fifo->data = g_new(uint8_t, capacity);
-    fifo->capacity = capacity;
-    fifo->head = 0;
-    fifo->num = 0;
-}
-
-void fifo8_destroy(Fifo8 *fifo)
-{
-    g_free(fifo->data);
-}
-
-void fifo8_push(Fifo8 *fifo, uint8_t data)
-{
-    if (fifo->num == fifo->capacity) {
-        abort();
-    }
-    fifo->data[(fifo->head + fifo->num) % fifo->capacity] = data;
-    fifo->num++;
-}
-
-uint8_t fifo8_pop(Fifo8 *fifo)
-{
-    uint8_t ret;
-
-    if (fifo->num == 0) {
-        abort();
-    }
-    ret = fifo->data[fifo->head++];
-    fifo->head %= fifo->capacity;
-    fifo->num--;
-    return ret;
-}
-
-void fifo8_reset(Fifo8 *fifo)
-{
-    fifo->num = 0;
-}
-
-bool fifo8_is_empty(Fifo8 *fifo)
-{
-    return (fifo->num == 0);
-}
-
-bool fifo8_is_full(Fifo8 *fifo)
-{
-    return (fifo->num == fifo->capacity);
-}
-
-const VMStateDescription vmstate_fifo8 = {
-    .name = "Fifo8",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .minimum_version_id_old = 1,
-    .fields      = (VMStateField[]) {
-        VMSTATE_VBUFFER_UINT32(data, Fifo8, 1, NULL, 0, capacity),
-        VMSTATE_UINT32(head, Fifo8),
-        VMSTATE_UINT32(num, Fifo8),
-        VMSTATE_END_OF_LIST()
-    }
-};