/*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
enum ofpbuf_source {
OFPBUF_MALLOC, /* Obtained via malloc(). */
- OFPBUF_STACK, /* Stack space or static buffer. */
- OFPBUF_CONST /* Must not be expanded. */
+ OFPBUF_STACK, /* Un-movable stack space or static buffer. */
+ OFPBUF_STUB /* Starts on stack, may expand into heap. */
};
/* Buffer for holding arbitrary data. An ofpbuf is automatically reallocated
size_t size; /* Number of bytes in use. */
void *l2; /* Link-level header. */
+ void *l2_5; /* MPLS label stack */
void *l3; /* Network-level header. */
void *l4; /* Transport-level header. */
void *l7; /* Application data. */
void *private_p; /* Private pointer for use by owner. */
};
-/* Declares NAME as a SIZE-byte array aligned properly for storing any kind of
- * data. For use with ofpbuf_use_stack(). */
-#define OFPBUF_STACK_BUFFER(NAME, SIZE) uint64_t NAME[DIV_ROUND_UP(SIZE, 8)]
-
void ofpbuf_use(struct ofpbuf *, void *, size_t);
void ofpbuf_use_stack(struct ofpbuf *, void *, size_t);
+void ofpbuf_use_stub(struct ofpbuf *, void *, size_t);
void ofpbuf_use_const(struct ofpbuf *, const void *, size_t);
void ofpbuf_init(struct ofpbuf *, size_t);
void ofpbuf_uninit(struct ofpbuf *);
+void *ofpbuf_get_uninit_pointer(struct ofpbuf *);
void ofpbuf_reinit(struct ofpbuf *, size_t);
struct ofpbuf *ofpbuf_new(size_t);
void ofpbuf_prealloc_headroom(struct ofpbuf *, size_t);
void ofpbuf_prealloc_tailroom(struct ofpbuf *, size_t);
void ofpbuf_trim(struct ofpbuf *);
+void ofpbuf_padto(struct ofpbuf *, size_t);
void ofpbuf_clear(struct ofpbuf *);
void *ofpbuf_pull(struct ofpbuf *, size_t);