dpif-netdev: Add DPDK netdev.

[sliver-openvswitch.git] / lib / ofpbuf.h

diff --git a/lib/ofpbuf.h b/lib/ofpbuf.h
index 8b03c7e..ad37b5b 100644 (file)
--- a/lib/ofpbuf.h
+++ b/lib/ofpbuf.h
@@ -29,7 +29,9 @@ extern "C" {
 enum ofpbuf_source {
     OFPBUF_MALLOC,              /* Obtained via malloc(). */
     OFPBUF_STACK,               /* Un-movable stack space or static buffer. */
-    OFPBUF_STUB                 /* Starts on stack, may expand into heap. */
+    OFPBUF_STUB,                /* Starts on stack, may expand into heap. */
+    OFPBUF_DPDK,                /* buffer data is from DPDK allocated memory.
+                                   ref to build_ofpbuf() in netdev-dpdk. */
 };
 
 /* Buffer for holding arbitrary data.  An ofpbuf is automatically reallocated
@@ -82,6 +84,8 @@ void *ofpbuf_put_zeros(struct ofpbuf *, size_t);
 void *ofpbuf_put(struct ofpbuf *, const void *, size_t);
 char *ofpbuf_put_hex(struct ofpbuf *, const char *s, size_t *n);
 void ofpbuf_reserve(struct ofpbuf *, size_t);
+void ofpbuf_reserve_with_tailroom(struct ofpbuf *b, size_t headroom,
+                                  size_t tailroom);
 void *ofpbuf_push_uninit(struct ofpbuf *b, size_t);
 void *ofpbuf_push_zeros(struct ofpbuf *, size_t);
 void *ofpbuf_push(struct ofpbuf *b, const void *, size_t);
@@ -92,6 +96,7 @@ 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_shift(struct ofpbuf *, int);
 
 void ofpbuf_clear(struct ofpbuf *);
 void *ofpbuf_pull(struct ofpbuf *, size_t);
@@ -107,6 +112,12 @@ static inline struct ofpbuf *ofpbuf_from_list(const struct list *list)
 }
 void ofpbuf_list_delete(struct list *);
 
+static inline bool
+ofpbuf_equal(const struct ofpbuf *a, const struct ofpbuf *b)
+{
+    return a->size == b->size && memcmp(a->data, b->data, a->size) == 0;
+}
+
 #ifdef  __cplusplus
 }
 #endif