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added simulated interrupt thread, currently only used to implement rtimer functionality

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This commit is contained in:
fros4943 2010-03-23 13:12:41 +00:00
parent bee0ea4834
commit 49526e100f
1 changed files with 45 additions and 13 deletions
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58
platform/cooja/contiki-cooja-main.c
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: contiki-cooja-main.c,v 1.2 2010/03/23 12:08:05 adamdunkels Exp $
* $Id: contiki-cooja-main.c,v 1.3 2010/03/23 13:12:41 fros4943 Exp $
*/
/**
@ -124,11 +124,13 @@ SENSORS(&button_sensor, &pir_sensor, &vib_sensor);
long referenceVar;
/*
* process_run() infinite loop.
* Is yielded at least once per function call.
* Contiki and rtimer threads.
*/
static struct cooja_mt_thread rtimer_thread;
static struct cooja_mt_thread process_run_thread;
#define MIN(a, b) ( (a)<(b) ? (a) : (b) )
/*---------------------------------------------------------------------------*/
static void
print_processes(struct process * const processes[])
@ -143,7 +145,19 @@ print_processes(struct process * const processes[])
}
/*---------------------------------------------------------------------------*/
static void
start_process_run_loop(void *data)
rtimer_thread_loop(void *data)
{
while(1)
{
rtimer_arch_check();
/* Return to COOJA */
cooja_mt_yield();
}
}
/*---------------------------------------------------------------------------*/
static void
process_run_thread_loop(void *data)
{
/* Yield once during bootup */
simProcessRunValue = 1;
@ -264,8 +278,9 @@ start_process_run_loop(void *data)
JNIEXPORT void JNICALL
Java_se_sics_cooja_corecomm_CLASSNAME_init(JNIEnv *env, jobject obj)
{
/* Prepare thread that will do the process_run()-loop */
cooja_mt_start(&process_run_thread, &start_process_run_loop, NULL);
/* Create rtimers and Contiki threads */
cooja_mt_start(&rtimer_thread, &rtimer_thread_loop, NULL);
cooja_mt_start(&process_run_thread, &process_run_thread_loop, NULL);
}
/*---------------------------------------------------------------------------*/
/**
@ -338,6 +353,8 @@ Java_se_sics_cooja_corecomm_CLASSNAME_setMemory(JNIEnv *env, jobject obj, jint r
JNIEXPORT void JNICALL
Java_se_sics_cooja_corecomm_CLASSNAME_tick(JNIEnv *env, jobject obj)
{
simProcessRunValue = 0;
/* Let all simulation interfaces act first */
doActionsBeforeTick();
@ -346,19 +363,34 @@ Java_se_sics_cooja_corecomm_CLASSNAME_tick(JNIEnv *env, jobject obj)
etimer_request_poll();
}
/* Let Contiki handle a few events.
This call stores the process_run() return value */
cooja_mt_exec(&process_run_thread);
/* Let rtimers run.
* Sets simProcessRunValue */
cooja_mt_exec(&rtimer_thread);
if(simProcessRunValue == 0) {
/* Rtimers done: Let Contiki handle a few events.
* Sets simProcessRunValue */
cooja_mt_exec(&process_run_thread);
}
/* Let all simulation interfaces act before returning to java */
doActionsAfterTick();
/* Look for new e-timers */
simEtimerPending = etimer_pending();
/* Do we have any pending timers */
simEtimerPending = etimer_pending() || rtimer_arch_pending();
if(!simEtimerPending) {
return;
}
/* Save nearest event timer expiration time */
if (simEtimerPending) {
simNextExpirationTime = etimer_next_expiration_time() - simCurrentTime;
int nextEtimer = etimer_next_expiration_time() - simCurrentTime;
int nextRtimer = rtimer_arch_next() - simCurrentTime;
if(etimer_pending() && rtimer_arch_pending()) {
simNextExpirationTime = MIN(nextEtimer, nextRtimer);
} else if (etimer_pending()) {
simNextExpirationTime = nextEtimer;
} else if (rtimer_arch_pending()) {
simNextExpirationTime = nextRtimer;
}
}
/*---------------------------------------------------------------------------*/