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[core scheduler]

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* added optional callback for scheduler timing statistics
This commit is contained in:
Oliver Hahm 2011-10-05 15:13:34 +02:00
parent 1eecd13116
commit a5d1d6d26b
1 changed files with 18 additions and 0 deletions
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18
core/scheduler.c
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@ -15,6 +15,7 @@
#include <stdint.h>
#include <malloc.h>
#include "hwtimer.h"
#include "scheduler.h"
#include "kernel.h"
#include "kernel_intern.h"
@ -26,10 +27,16 @@
volatile int num_tasks = 0;
uint8_t last_pid = 0xFF;
clist_node_t *runqueues[SCHED_PRIO_LEVELS];
static uint32_t runqueue_bitcache = 0;
void sched_register_cb(void (*callback)(uint32_t, uint32_t));
#if SCHEDSTATISTICS
static void (*sched_cb)(uint32_t timestamp, uint32_t value) = NULL;
schedstat pidlist[MAXTHREADS];
#endif
@ -106,6 +113,12 @@ void fk_schedule() {
// break;
// }
// }
#if SCHEDSTATISTICS
if ((sched_cb) && (my_fk_thread->pid != last_pid)) {
sched_cb(hwtimer_now(), my_fk_thread->pid);
last_pid = my_fk_thread->pid;
}
#endif
}
DEBUG("scheduler: next task: %s\n", my_fk_thread->name);
@ -124,6 +137,11 @@ void fk_schedule() {
DEBUG("scheduler: done.\n");
}
#if SCHEDSTATISTICS
void sched_register_cb(void (*callback)(uint32_t, uint32_t)) {
sched_cb = callback;
}
#endif
void sched_set_status(tcb *process, unsigned int status) {
if (status & STATUS_ON_RUNQUEUE) {