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TSCH: manage busy waiting on Cooja motes

master-31012017
Yasuyuki Tanaka 2016-09-06 15:14:10 +02:00
parent 958ff6e4f6
commit 0201208664
2 changed files with 26 additions and 3 deletions
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13
core/net/mac/tsch/tsch-private.h
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@ -48,6 +48,10 @@
#include "net/linkaddr.h"
#include "net/mac/tsch/tsch-asn.h"
#include "net/mac/tsch/tsch-conf.h"
#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
#include "lib/simEnvChange.h"
#include "sys/cooja_mt.h"
#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
/************ Types ***********/
@ -109,7 +113,14 @@ void tsch_disassociate(void);
#define TSCH_CLOCK_TO_SLOTS(c, timeslot_length) (TSCH_CLOCK_TO_TICKS(c) / timeslot_length)
/* Wait for a condition with timeout t0+offset. */
#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
#define BUSYWAIT_UNTIL_ABS(cond, t0, offset) \
while(!(cond) && RTIMER_CLOCK_LT(RTIMER_NOW(), (t0) + (offset))) { \
simProcessRunValue = 1; \
cooja_mt_yield(); \
};
#else
#define BUSYWAIT_UNTIL_ABS(cond, t0, offset) \
while(!(cond) && RTIMER_CLOCK_LT(RTIMER_NOW(), (t0) + (offset))) ;
#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
#endif /* __TSCH_PRIVATE_H__ */

16
core/net/mac/tsch/tsch-slot-operation.c
View File

@ -54,6 +54,10 @@
#include "net/mac/tsch/tsch-packet.h"
#include "net/mac/tsch/tsch-security.h"
#include "net/mac/tsch/tsch-adaptive-timesync.h"
#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
#include "lib/simEnvChange.h"
#include "sys/cooja_mt.h"
#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
#if TSCH_LOG_LEVEL >= 1
#define DEBUG DEBUG_PRINT
@ -104,7 +108,10 @@
#if RTIMER_SECOND < (32 * 1024)
#error "TSCH: RTIMER_SECOND < (32 * 1024)"
#endif
#if RTIMER_SECOND >= 200000
#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
/* Use 0 usec guard time for Cooja Mote with a 1 MHz Rtimer*/
#define RTIMER_GUARD 0u
#elif RTIMER_SECOND >= 200000
#define RTIMER_GUARD (RTIMER_SECOND / 100000)
#else
#define RTIMER_GUARD 2u
@ -200,7 +207,12 @@ tsch_get_lock(void)
if(tsch_in_slot_operation) {
busy_wait = 1;
busy_wait_time = RTIMER_NOW();
while(tsch_in_slot_operation);
while(tsch_in_slot_operation) {
#if CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64
simProcessRunValue = 1;
cooja_mt_yield();
#endif /* CONTIKI_TARGET_COOJA || CONTIKI_TARGET_COOJA_IP64 */
}
busy_wait_time = RTIMER_NOW() - busy_wait_time;
}
if(!tsch_locked) {