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Fixed bug #28099 (API required to disable Nagle algorithm at PCB level): added tcp_nagele_*() function-like macros

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goldsimon 2009-11-26 15:19:30 +00:00
parent 6795aabecf
commit c8d2d2a8ea
3 changed files with 11 additions and 4 deletions
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4
CHANGELOG
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@ -46,6 +46,10 @@ HISTORY
++ Bugfixes:
2009-11-26: Simon Goldschmidt
* tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
algorithm at PCB level
2009-11-22: Simon Goldschmidt
* tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent

6
src/api/sockets.c
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@ -1492,7 +1492,7 @@ lwip_getsockopt_internal(void *arg)
case IPPROTO_TCP:
switch (optname) {
case TCP_NODELAY:
*(int*)optval = (sock->conn->pcb.tcp->flags & TF_NODELAY);
*(int*)optval = tcp_nagle_enabled(sock->conn->pcb.tcp);
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n",
s, (*(int*)optval)?"on":"off") );
break;
@ -1853,9 +1853,9 @@ lwip_setsockopt_internal(void *arg)
switch (optname) {
case TCP_NODELAY:
if (*(int*)optval) {
sock->conn->pcb.tcp->flags |= TF_NODELAY;
tcp_nagle_enable(sock->conn->pcb.tcp);
} else {
sock->conn->pcb.tcp->flags &= ~TF_NODELAY;
tcp_nagle_disable(sock->conn->pcb.tcp);
}
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n",
s, (*(int *)optval)?"on":"off") );

5
src/include/lwip/tcp.h
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@ -78,6 +78,9 @@ void tcp_err (struct tcp_pcb *pcb,
#define tcp_mss(pcb) ((pcb)->mss)
#define tcp_sndbuf(pcb) ((pcb)->snd_buf)
#define tcp_nagle_enable(pcb) ((pcb)->flags |= TF_NODELAY)
#define tcp_nagle_disable(pcb) ((pcb)->flags &= ~TF_NODELAY)
#define tcp_nagle_enabled(pcb) (((pcb)->flags & TF_NODELAY) != 0)
#if TCP_LISTEN_BACKLOG
#define tcp_accepted(pcb) (((struct tcp_pcb_listen *)(pcb))->accepts_pending--)
@ -137,7 +140,7 @@ u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb);
* than one unsent segment - with lwIP, this can happen although unsent->len < mss)
*/
#define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \
((tpcb)->flags & TF_NODELAY) || \
(tcp_nagle_enabled(tpcb)) || \
(((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \
((tpcb)->unsent->len >= (tpcb)->mss))) \
) ? 1 : 0)