arduino/esp8266
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Fix optimistic_yield to not yield on every call after a loop runs for x us, but yield only every x us between optimistic_yield calls.

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This commit is contained in:
Dirk O. Kaar 2019-11-18 22:39:51 +01:00
parent a8515a7d66
commit d6e603f397
1 changed files with 4 additions and 3 deletions
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7
cores/esp8266/core_esp8266_main.cpp
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@ -58,7 +58,7 @@ cont_t* g_pcont __attribute__((section(".noinit")));
static os_event_t s_loop_queue[LOOP_QUEUE_SIZE]; static os_event_t s_loop_queue[LOOP_QUEUE_SIZE];
/* Used to implement optimistic_yield */ /* Used to implement optimistic_yield */
static uint32_t s_micros_at_task_start; static uint32_t s_micros_since_yield_start;
/* For ets_intr_lock_nest / ets_intr_unlock_nest /* For ets_intr_lock_nest / ets_intr_unlock_nest
* Max nesting seen by SDK so far is 2. * Max nesting seen by SDK so far is 2.
@ -116,6 +116,7 @@ extern "C" void __yield() {
if (can_yield()) { if (can_yield()) {
esp_schedule(); esp_schedule();
esp_yield_within_cont(); esp_yield_within_cont();
s_micros_since_yield_start = system_get_time();
} }
else { else {
panic(); panic();
@ -126,7 +127,7 @@ extern "C" void yield(void) __attribute__ ((weak, alias("__yield")));
extern "C" void optimistic_yield(uint32_t interval_us) { extern "C" void optimistic_yield(uint32_t interval_us) {
if (can_yield() && if (can_yield() &&
(system_get_time() - s_micros_at_task_start) > interval_us) (system_get_time() - s_micros_since_yield_start) > interval_us)
{ {
yield(); yield();
} }
@ -183,7 +184,7 @@ static void loop_wrapper() {
static void loop_task(os_event_t *events) { static void loop_task(os_event_t *events) {
(void) events; (void) events;
s_micros_at_task_start = system_get_time(); s_micros_since_yield_start = system_get_time();
cont_run(g_pcont, &loop_wrapper); cont_run(g_pcont, &loop_wrapper);
if (cont_check(g_pcont) != 0) { if (cont_check(g_pcont) != 0) {
panic(); panic();