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

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. * 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. * 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 #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. * relative to cc2420_check_remote::toff.
*/ */
#define SCALE_DIV_EXPIRE 4 #define SCALE_DIV_EXPIRE 2
#define MAX_EXPIRE 15 #define MAX_EXPIRE 15 /* 30 seconds */
#define AGE_INTERVAL 5 /* 20 seconds */ #define AGE_INTERVAL 5 /* 10 seconds */
struct cc2420_neigbour neigbours[NNEIGBOURS]; struct cc2420_neigbour neigbours[NNEIGBOURS];
@ -644,7 +644,7 @@ cc2420_check_remote(u16_t mac)
struct cc2420_neigbour *t; 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; static clock_time_t toff;
unsigned now = ((clock_time() - toff)/CLOCK_SECOND)/SCALE_DIV_EXPIRE; unsigned now = ((clock_time() - toff)/CLOCK_SECOND)/SCALE_DIV_EXPIRE;