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No need to send strobes for broadcast packets: just send the actual packet instead

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This commit is contained in:
adamdunkels 2008-07-07 23:25:12 +00:00
parent 35261f5208
commit c0c26262c4
1 changed files with 10 additions and 4 deletions
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14
core/net/mac/xmac.c
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@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: xmac.c,v 1.19 2008/06/30 08:10:02 adamdunkels Exp $
* $Id: xmac.c,v 1.20 2008/07/07 23:25:12 adamdunkels Exp $
*/
/**
@ -336,8 +336,14 @@ send_packet(void)
TIMETABLE_TIMESTAMP(xmac_timetable, "send strobe");
}
#endif
/* Send the strobe packet. */
radio->send((const uint8_t *)&msg, sizeof(struct xmac_hdr));
if(is_broadcast) {
/* If we are sending a broadcast, we don't send strobes, we
simply send the data packet repetedly */
radio->send(rimebuf_hdrptr(), rimebuf_totlen());
} else {
/* Send the strobe packet. */
radio->send((const uint8_t *)&msg, sizeof(struct xmac_hdr));
}
CPRINTF("+");
while(got_ack == 0 &&
@ -383,7 +389,7 @@ send_packet(void)
}
/* Send the data packet. */
if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_null) || got_ack) {
if(is_broadcast || got_ack) {
#if WITH_TIMETABLE
TIMETABLE_TIMESTAMP(xmac_timetable, "send packet");
#endif