/*
* Copyright (c) 2008, 2009 Nicira Networks.
*
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*/
#include <config.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
+#include "dynamic-string.h"
#include "util.h"
/* Initializes 'b' as an empty ofpbuf that contains the 'allocated' bytes of
b->size = 0;
b->l2 = b->l3 = b->l4 = b->l7 = NULL;
b->next = NULL;
- b->private = NULL;
+ b->private_p = NULL;
}
/* Initializes 'b' as an empty ofpbuf with an initial capacity of 'size'
* commonly, the data in a ofpbuf is at its beginning, and thus the ofpbuf's
* headroom is 0.) */
size_t
-ofpbuf_headroom(struct ofpbuf *b)
+ofpbuf_headroom(const struct ofpbuf *b)
{
return (char*)b->data - (char*)b->base;
}
/* Returns the number of bytes that may be appended to the tail end of ofpbuf
* 'b' before the ofpbuf must be reallocated. */
size_t
-ofpbuf_tailroom(struct ofpbuf *b)
+ofpbuf_tailroom(const struct ofpbuf *b)
{
return (char*)ofpbuf_end(b) - (char*)ofpbuf_tail(b);
}
{
return b->size >= size ? ofpbuf_pull(b, size) : NULL;
}
+
+/* Returns a string that describes some of 'b''s metadata plus a hex dump of up
+ * to 'maxbytes' from the start of the buffer. */
+char *
+ofpbuf_to_string(const struct ofpbuf *b, size_t maxbytes)
+{
+ struct ds s;
+
+ ds_init(&s);
+ ds_put_format(&s, "size=%zu, allocated=%zu, head=%zu, tail=%zu\n",
+ b->size, b->allocated,
+ ofpbuf_headroom(b), ofpbuf_tailroom(b));
+ ds_put_hex_dump(&s, b->data, MIN(b->size, maxbytes), 0, false);
+ return ds_cstr(&s);
+}