mirror/lwip
1
0
Fork 0
mirror of https://github.com/lwip-tcpip/lwip.git synced 2025-01-04 02:39:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added comments

Browse Source
This commit is contained in:
goldsimon 2010-01-13 11:16:47 +00:00
parent 68ddcc6ca7
commit 052be0a328
1 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/core/tcp_in.c
View File

@ -773,7 +773,7 @@ tcp_oos_insert_segment(struct tcp_seg *cseg, struct tcp_seg *next)
}
cseg->next = next;
}
#endif
#endif /* TCP_QUEUE_OOSEQ */
/**
* Called by tcp_process. Checks if the given segment is an ACK for outstanding
@ -793,7 +793,7 @@ tcp_receive(struct tcp_pcb *pcb)
struct tcp_seg *next;
#if TCP_QUEUE_OOSEQ
struct tcp_seg *prev, *cseg;
#endif
#endif /* TCP_QUEUE_OOSEQ */
struct pbuf *p;
s32_t off;
s16_t m;
@ -1161,6 +1161,9 @@ tcp_receive(struct tcp_pcb *pcb)
(seqno + tcplen) == (pcb->rcv_nxt + pcb->rcv_wnd));
}
#if TCP_QUEUE_OOSEQ
/* Received in-sequence data, adjust ooseq data if:
- FIN has been received or
- inseq overlaps with ooseq */
if (pcb->ooseq != NULL) {
if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) {
LWIP_DEBUGF(TCP_INPUT_DEBUG,
@ -1172,8 +1175,8 @@ tcp_receive(struct tcp_pcb *pcb)
struct tcp_seg *old_ooseq = pcb->ooseq;
pcb->ooseq = pcb->ooseq->next;
tcp_seg_free(old_ooseq);
}
}
}
}
else {
next = pcb->ooseq;
/* Remove all segments on ooseq that are covered by inseg already.
@ -1243,7 +1246,7 @@ tcp_receive(struct tcp_pcb *pcb)
#if TCP_QUEUE_OOSEQ
/* We now check if we have segments on the ->ooseq queue that
is now in sequence. */
are now in sequence. */
while (pcb->ooseq != NULL &&
pcb->ooseq->tcphdr->seqno == pcb->rcv_nxt) {