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Added comment, use braces for single-line if-blocks

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This commit is contained in:
goldsimon 2010-03-09 15:49:57 +00:00
parent d91caf1cd3
commit 3bfc07eb92
1 changed files with 19 additions and 7 deletions
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26
src/core/tcp_out.c
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@ -58,6 +58,15 @@
/* Forward declarations.*/ /* Forward declarations.*/
static void tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb); static void tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb);
/** Create a tcphdr at p->payload, used for output functions other than the
* default tcp_output -> tcp_output_segment (e.g. tcp_send_empty_ack, etc.)
*
* @param pcb tcp pcb for which to send a packet (used to initialize tcp_hdr)
* @param p pbuf to send, p->payload will be the tcp_hdr
* @param optlen length of header-options
* @param seqno_be seqno in network byte order (big-endian)
* @return pointer to the filled tcp_hdr
*/
static struct tcp_hdr * static struct tcp_hdr *
tcp_output_set_header(struct tcp_pcb *pcb, struct pbuf *p, u16_t optlen, tcp_output_set_header(struct tcp_pcb *pcb, struct pbuf *p, u16_t optlen,
u32_t seqno_be /* already in network byte order */) u32_t seqno_be /* already in network byte order */)
@ -855,7 +864,7 @@ tcp_output(struct tcp_pcb *pcb)
/* In the case of fast retransmit, the packet should not go to the tail /* In the case of fast retransmit, the packet should not go to the tail
* of the unacked queue, but rather somewhere before it. We need to check for * of the unacked queue, but rather somewhere before it. We need to check for
* this case. -STJ Jul 27, 2004 */ * this case. -STJ Jul 27, 2004 */
if (TCP_SEQ_LT(ntohl(seg->tcphdr->seqno), ntohl(useg->tcphdr->seqno))){ if (TCP_SEQ_LT(ntohl(seg->tcphdr->seqno), ntohl(useg->tcphdr->seqno))) {
/* add segment to before tail of unacked list, keeping the list sorted */ /* add segment to before tail of unacked list, keeping the list sorted */
struct tcp_seg **cur_seg = &(pcb->unacked); struct tcp_seg **cur_seg = &(pcb->unacked);
while (*cur_seg && while (*cur_seg &&
@ -940,8 +949,9 @@ tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb)
} }
/* Set retransmission timer running if it is not currently enabled */ /* Set retransmission timer running if it is not currently enabled */
if(pcb->rtime == -1) if(pcb->rtime == -1) {
pcb->rtime = 0; pcb->rtime = 0;
}
if (pcb->rttest == 0) { if (pcb->rttest == 0) {
pcb->rttest = tcp_ticks; pcb->rttest = tcp_ticks;
@ -1132,10 +1142,11 @@ tcp_rexmit_fast(struct tcp_pcb *pcb)
/* Set ssthresh to half of the minimum of the current /* Set ssthresh to half of the minimum of the current
* cwnd and the advertised window */ * cwnd and the advertised window */
if (pcb->cwnd > pcb->snd_wnd) if (pcb->cwnd > pcb->snd_wnd) {
pcb->ssthresh = pcb->snd_wnd / 2; pcb->ssthresh = pcb->snd_wnd / 2;
else } else {
pcb->ssthresh = pcb->cwnd / 2; pcb->ssthresh = pcb->cwnd / 2;
}
/* The minimum value for ssthresh should be 2 MSS */ /* The minimum value for ssthresh should be 2 MSS */
if (pcb->ssthresh < 2*pcb->mss) { if (pcb->ssthresh < 2*pcb->mss) {
@ -1236,11 +1247,12 @@ tcp_zero_window_probe(struct tcp_pcb *pcb)
seg = pcb->unacked; seg = pcb->unacked;
if(seg == NULL) if(seg == NULL) {
seg = pcb->unsent; seg = pcb->unsent;
}
if(seg == NULL) if(seg == NULL) {
return; return;
}
is_fin = ((TCPH_FLAGS(seg->tcphdr) & TCP_FIN) != 0) && (seg->len == 0); is_fin = ((TCPH_FLAGS(seg->tcphdr) & TCP_FIN) != 0) && (seg->len == 0);
/* @todo: is this correct? p->len should not depend on the FIN flag! */ /* @todo: is this correct? p->len should not depend on the FIN flag! */