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Minor speedup ip_output_if when writing TTL/proto to ip header

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This commit is contained in:
goldsimon 2010-01-13 12:52:15 +00:00
parent 67c587f9f7
commit 1c47d15577
2 changed files with 2 additions and 2 deletions
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3
src/core/ipv4/ip.c
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@ -553,8 +553,7 @@ err_t ip_output_if_opt(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest
LWIP_ASSERT("check that first pbuf can hold struct ip_hdr",
(p->len >= sizeof(struct ip_hdr)));
IPH_TTL_SET(iphdr, ttl);
IPH_PROTO_SET(iphdr, proto);
IPH_TTL_PROTO_SET(iphdr, ttl, proto);
ip_addr_set(&(iphdr->dest), dest);

1
src/include/ipv4/lwip/ip.h
View File

@ -149,6 +149,7 @@ PACK_STRUCT_END
#define IPH_LEN_SET(hdr, len) (hdr)->_len = (len)
#define IPH_ID_SET(hdr, id) (hdr)->_id = (id)
#define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off)
#define IPH_TTL_PROTO_SET(hdr, ttl, proto) (hdr)->_ttl_proto = (htons((u8_t)(proto) | ((u16_t)(ttl) << 8)))
#define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl_proto = (htons(IPH_PROTO(hdr) | ((u16_t)(ttl) << 8)))
#define IPH_PROTO_SET(hdr, proto) (hdr)->_ttl_proto = (htons((proto) | (IPH_TTL(hdr) << 8)))
#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum)