static ovs_be32
alloc_xid(void)
{
- static uint32_t next_xid = 1;
- return htonl(next_xid++);
+ static atomic_uint32_t next_xid = ATOMIC_VAR_INIT(1);
+ uint32_t xid;
+
+ atomic_add(&next_xid, 1, &xid);
+ return htonl(xid);
}
\f
static uint32_t
}
static bool
-ofphdrs_is_stat(const struct ofphdrs *hdrs)
+ofp_is_stat_request(enum ofp_version version, uint8_t type)
{
- switch ((enum ofp_version) hdrs->version) {
+ switch (version) {
+ case OFP10_VERSION:
+ return type == OFPT10_STATS_REQUEST;
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ case OFP13_VERSION:
+ return type == OFPT11_STATS_REQUEST;
+ }
+
+ return false;
+}
+
+static bool
+ofp_is_stat_reply(enum ofp_version version, uint8_t type)
+{
+ switch (version) {
case OFP10_VERSION:
- return (hdrs->type == OFPT10_STATS_REQUEST ||
- hdrs->type == OFPT10_STATS_REPLY);
+ return type == OFPT10_STATS_REPLY;
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION:
- return (hdrs->type == OFPT11_STATS_REQUEST ||
- hdrs->type == OFPT11_STATS_REPLY);
+ return type == OFPT11_STATS_REPLY;
}
return false;
}
+static bool
+ofp_is_stat(enum ofp_version version, uint8_t type)
+{
+ return (ofp_is_stat_request(version, type) ||
+ ofp_is_stat_reply(version, type));
+}
+
+static bool
+ofphdrs_is_stat(const struct ofphdrs *hdrs)
+{
+ return ofp_is_stat(hdrs->version, hdrs->type);
+}
+
size_t
ofphdrs_len(const struct ofphdrs *hdrs)
{
nsm->subtype = htonl(hdrs->subtype);
memset(nsm->pad, 0, sizeof nsm->pad);
} else {
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}
} else if (version != OFP10_VERSION
nsm->subtype = htonl(hdrs->subtype);
} else {
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}
}
hdrs.type = OFPT11_STATS_REPLY;
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
error = ofpraw_from_ofphdrs(&reply_raw, &hdrs);
ofphdrs_decode_assert(&hdrs, oh, ntohs(oh->length));
return (const uint8_t *) oh + ofphdrs_len(&hdrs);
}
+
+/* Return if it's a stat/multipart (OFPST) request message. */
+bool
+ofpmsg_is_stat_request(const struct ofp_header *oh)
+{
+ return ofp_is_stat_request(oh->version, oh->type);
+}
\f
static ovs_be16 *ofpmp_flags__(const struct ofp_header *);
case OFP13_VERSION:
return &((struct ofp11_stats_msg *) oh)->flags;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}