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Core: Support yield current coroutine for high performance timer.

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This commit is contained in:
winlin 2021-02-11 21:04:09 +08:00
parent d8563398b2
commit b4b9776b02
2 changed files with 27 additions and 0 deletions
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1
trunk/3rdparty/st-srs/public.h vendored
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@ -98,6 +98,7 @@ extern st_thread_t st_thread_self(void);
extern void st_thread_exit(void *retval);
extern int st_thread_join(st_thread_t thread, void **retvalp);
extern void st_thread_interrupt(st_thread_t thread);
extern void st_thread_yield();
extern st_thread_t st_thread_create(void *(*start)(void *arg), void *arg, int joinable, int stack_size);
extern int st_randomize_stacks(int on);
extern int st_set_utime_function(st_utime_t (*func)(void));

26
trunk/3rdparty/st-srs/sched.c vendored
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@ -66,6 +66,7 @@ unsigned long long _st_stat_sched_s = 0;
unsigned long long _st_stat_thread_run = 0;
unsigned long long _st_stat_thread_idle = 0;
unsigned long long _st_stat_thread_yield = 0;
#endif
@ -554,6 +555,31 @@ void _st_vp_check_clock(void)
}
void st_thread_yield()
{
_st_thread_t *me = _ST_CURRENT_THREAD();
// If not thread in RunQ to yield to, ignore and continue to run.
if (_ST_RUNQ.next == &_ST_RUNQ) {
return;
}
#ifdef DEBUG
++_st_stat_thread_yield;
#endif
/* Check sleep queue for expired threads */
_st_vp_check_clock();
// Append thread to the tail of RunQ, we will back after all threads executed.
me->state = _ST_ST_RUNNABLE;
_ST_ADD_RUNQ(me);
// Yield to other threads in the RunQ.
_ST_SWITCH_CONTEXT(me);
}
void st_thread_interrupt(_st_thread_t *thread)
{
/* If thread is already dead */