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* Change max life of neigbour entries from 60 to 30 seconds by

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changing the time unit (quanta) from 4 to 2 seconds.
This commit is contained in:
bg- 2007-06-28 15:08:53 +00:00
parent cd5b4d0e64
commit 8f0d9aab89
1 changed files with 6 additions and 6 deletions
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12
core/dev/cc2420.c
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@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: cc2420.c,v 1.19 2007/06/01 14:37:02 bg- Exp $
* @(#)$Id: cc2420.c,v 1.20 2007/06/28 15:08:53 bg- Exp $
*/
/*
* This code is almost device independent and should be easy to port.
@ -560,12 +560,12 @@ PROCESS_THREAD(cc2420_retransmit_process, ev, data)
#define MAX_SCALE_RETRANS 15
/*
* Expiration timestamps are 4-bits wide, in units of 4 seconds, and
* Expiration timestamps are 4-bits wide, in units of 2 seconds, and
* relative to cc2420_check_remote::toff.
*/
#define SCALE_DIV_EXPIRE 4
#define MAX_EXPIRE 15
#define AGE_INTERVAL 5 /* 20 seconds */
#define SCALE_DIV_EXPIRE 2
#define MAX_EXPIRE 15 /* 30 seconds */
#define AGE_INTERVAL 5 /* 10 seconds */
struct cc2420_neigbour neigbours[NNEIGBOURS];
@ -644,7 +644,7 @@ cc2420_check_remote(u16_t mac)
struct cc2420_neigbour *t;
/*
* Age neigbour table every 5*SCALE_DIV_EXPIRE=20 seconds.
* Age neigbour table every 5*SCALE_DIV_EXPIRE=10 seconds.
*/
static clock_time_t toff;
unsigned now = ((clock_time() - toff)/CLOCK_SECOND)/SCALE_DIV_EXPIRE;