1 files changed, 0 insertions, 172 deletions
diff --git a/qemu/util/buffer.c b/qemu/util/buffer.c
deleted file mode 100644
index a6118bf5b..000000000
--- a/qemu/util/buffer.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * QEMU generic buffers
- *
- * Copyright (c) 2015 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qemu/buffer.h"
-#include "trace.h"
-
-#define BUFFER_MIN_INIT_SIZE     4096
-#define BUFFER_MIN_SHRINK_SIZE  65536
-
-/* define the factor alpha for the expentional smoothing
- * that is used in the average size calculation. a shift
- * of 7 results in an alpha of 1/2^7. */
-#define BUFFER_AVG_SIZE_SHIFT       7
-
-static size_t buffer_req_size(Buffer *buffer, size_t len)
-{
-    return MAX(BUFFER_MIN_INIT_SIZE,
-               pow2ceil(buffer->offset + len));
-}
-
-static void buffer_adj_size(Buffer *buffer, size_t len)
-{
-    size_t old = buffer->capacity;
-    buffer->capacity = buffer_req_size(buffer, len);
-    buffer->buffer = g_realloc(buffer->buffer, buffer->capacity);
-    trace_buffer_resize(buffer->name ?: "unnamed",
-                        old, buffer->capacity);
-
-    /* make it even harder for the buffer to shrink, reset average size
-     * to currenty capacity if it is larger than the average. */
-    buffer->avg_size = MAX(buffer->avg_size,
-                           buffer->capacity << BUFFER_AVG_SIZE_SHIFT);
-}
-
-void buffer_init(Buffer *buffer, const char *name, ...)
-{
-    va_list ap;
-
-    va_start(ap, name);
-    buffer->name = g_strdup_vprintf(name, ap);
-    va_end(ap);
-}
-
-static uint64_t buffer_get_avg_size(Buffer *buffer)
-{
-    return buffer->avg_size >> BUFFER_AVG_SIZE_SHIFT;
-}
-
-void buffer_shrink(Buffer *buffer)
-{
-    size_t new;
-
-    /* Calculate the average size of the buffer as
-     * avg_size = avg_size * ( 1 - a ) + required_size * a
-     * where a is 1 / 2 ^ BUFFER_AVG_SIZE_SHIFT. */
-    buffer->avg_size *= (1 << BUFFER_AVG_SIZE_SHIFT) - 1;
-    buffer->avg_size >>= BUFFER_AVG_SIZE_SHIFT;
-    buffer->avg_size += buffer_req_size(buffer, 0);
-
-    /* And then only shrink if the average size of the buffer is much
-     * too big, to avoid bumping up & down the buffers all the time.
-     * realloc() isn't exactly cheap ...  */
-    new = buffer_req_size(buffer, buffer_get_avg_size(buffer));
-    if (new < buffer->capacity >> 3 &&
-        new >= BUFFER_MIN_SHRINK_SIZE) {
-        buffer_adj_size(buffer, buffer_get_avg_size(buffer));
-    }
-
-    buffer_adj_size(buffer, 0);
-}
-
-void buffer_reserve(Buffer *buffer, size_t len)
-{
-    if ((buffer->capacity - buffer->offset) < len) {
-        buffer_adj_size(buffer, len);
-    }
-}
-
-gboolean buffer_empty(Buffer *buffer)
-{
-    return buffer->offset == 0;
-}
-
-uint8_t *buffer_end(Buffer *buffer)
-{
-    return buffer->buffer + buffer->offset;
-}
-
-void buffer_reset(Buffer *buffer)
-{
-    buffer->offset = 0;
-    buffer_shrink(buffer);
-}
-
-void buffer_free(Buffer *buffer)
-{
-    trace_buffer_free(buffer->name ?: "unnamed", buffer->capacity);
-    g_free(buffer->buffer);
-    g_free(buffer->name);
-    buffer->offset = 0;
-    buffer->capacity = 0;
-    buffer->buffer = NULL;
-    buffer->name = NULL;
-}
-
-void buffer_append(Buffer *buffer, const void *data, size_t len)
-{
-    memcpy(buffer->buffer + buffer->offset, data, len);
-    buffer->offset += len;
-}
-
-void buffer_advance(Buffer *buffer, size_t len)
-{
-    memmove(buffer->buffer, buffer->buffer + len,
-            (buffer->offset - len));
-    buffer->offset -= len;
-    buffer_shrink(buffer);
-}
-
-void buffer_move_empty(Buffer *to, Buffer *from)
-{
-    trace_buffer_move_empty(to->name ?: "unnamed",
-                            from->offset,
-                            from->name ?: "unnamed");
-    assert(to->offset == 0);
-
-    g_free(to->buffer);
-    to->offset = from->offset;
-    to->capacity = from->capacity;
-    to->buffer = from->buffer;
-
-    from->offset = 0;
-    from->capacity = 0;
-    from->buffer = NULL;
-}
-
-void buffer_move(Buffer *to, Buffer *from)
-{
-    if (to->offset == 0) {
-        buffer_move_empty(to, from);
-        return;
-    }
-
-    trace_buffer_move(to->name ?: "unnamed",
-                      from->offset,
-                      from->name ?: "unnamed");
-    buffer_reserve(to, from->offset);
-    buffer_append(to, from->buffer, from->offset);
-
-    g_free(from->buffer);
-    from->offset = 0;
-    from->capacity = 0;
-    from->buffer = NULL;
-}