[ovs-dev] [PATCH 6/9] ofp-util: Improve function to emit a bitmap property.
Ben Pfaff
blp at ovn.org
Tue Dec 29 21:09:34 UTC 2015
The callers had some common code that could be reasonably encapsulated, so
this commit does so.
Signed-off-by: Ben Pfaff <blp at ovn.org>
---
lib/ofp-util.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/lib/ofp-util.c b/lib/ofp-util.c
index f2ae9c7..96d0d63 100644
--- a/lib/ofp-util.c
+++ b/lib/ofp-util.c
@@ -209,12 +209,16 @@ end_property(struct ofpbuf *msg, size_t start_ofs)
ofpbuf_padto(msg, ROUND_UP(msg->size, 8));
}
+/* Appends a property to 'msg' whose type is 'type' and whose contents is a
+ * series of property headers, one for each 1-bit in 'bitmap'. */
static void
-put_bitmap_properties(struct ofpbuf *msg, uint64_t bitmap)
+put_bitmap_property(struct ofpbuf *msg, uint16_t type, uint64_t bitmap)
{
+ size_t start_ofs = start_property(msg, type);
for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) {
start_property(msg, rightmost_1bit_idx(bitmap));
}
+ end_property(msg, start_ofs);
}
/* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns
@@ -4847,14 +4851,9 @@ put_table_action_features(struct ofpbuf *reply,
enum ofp13_table_feature_prop_type set_fields_type,
int miss_offset, enum ofp_version version)
{
- size_t start_ofs;
-
- start_ofs = start_property(reply, actions_type + miss_offset);
- put_bitmap_properties(reply,
- ntohl(ofpact_bitmap_to_openflow(taf->ofpacts,
- version)));
- end_property(reply, start_ofs);
-
+ put_bitmap_property(reply, actions_type + miss_offset,
+ ntohl(ofpact_bitmap_to_openflow(taf->ofpacts,
+ version)));
put_fields_property(reply, &taf->set_fields, NULL,
set_fields_type + miss_offset, version);
}
@@ -4867,11 +4866,9 @@ put_table_instruction_features(
size_t start_ofs;
uint8_t table_id;
- start_ofs = start_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset);
- put_bitmap_properties(reply,
- ntohl(ovsinst_bitmap_to_openflow(tif->instructions,
- version)));
- end_property(reply, start_ofs);
+ put_bitmap_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset,
+ ntohl(ovsinst_bitmap_to_openflow(tif->instructions,
+ version)));
start_ofs = start_property(reply, OFPTFPT13_NEXT_TABLES + miss_offset);
BITMAP_FOR_EACH_1 (table_id, 255, tif->next) {
--
2.1.3
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