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Make ip_current_netif() and ip_current_header() a define referring to extern variables to be save the function call.

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This commit is contained in:
goldsimon 2009-10-07 17:47:05 +00:00
parent 68f92050e9
commit ddc783bee7
2 changed files with 15 additions and 32 deletions
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32
src/core/ipv4/ip.c
View File

@ -62,40 +62,12 @@
* The interface that provided the packet for the current callback
* invocation.
*/
static struct netif *current_netif;
struct netif *current_netif;
/**
* Header of the input packet currently being processed.
*/
static const struct ip_hdr *current_header;
/**
* Get the interface that received the current packet.
*
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise.
*
* @param pcb Pointer to the pcb receiving a packet.
*/
struct netif *
ip_current_netif(void)
{
return current_netif;
}
/**
* Get the IP header of the current packet.
*
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise.
*
* @param pcb Pointer to the pcb receiving a packet.
*/
const struct ip_hdr *
ip_current_header(void)
{
return current_header;
}
const struct ip_hdr *current_header;
/**
* Finds the appropriate network interface for a given IP address. It

15
src/include/ipv4/lwip/ip.h
View File

@ -153,6 +153,11 @@ PACK_STRUCT_END
#define IPH_PROTO_SET(hdr, proto) (hdr)->_ttl_proto = (htons((proto) | (IPH_TTL(hdr) << 8)))
#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum)
/** The interface that provided the packet for the current callback invocation. */
extern struct netif *current_netif;
/** Header of the input packet currently being processed. */
extern const struct ip_hdr *current_header;
#define ip_init() /* Compatibility define, not init needed. */
struct netif *ip_route(struct ip_addr *dest);
err_t ip_input(struct pbuf *p, struct netif *inp);
@ -170,8 +175,14 @@ err_t ip_output_if_opt(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest
u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
u16_t optlen);
#endif /* IP_OPTIONS_SEND */
struct netif *ip_current_netif(void);
const struct ip_hdr *ip_current_header(void);
/** Get the interface that received the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip_current_netif() (current_netif)
/** Get the IP header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip_current_header() (current_header)
#if IP_DEBUG
void ip_debug_print(struct pbuf *p);
#else