8000 Fix optimistic_yield to not yield on each call after x µs by dok-net · Pull Request #6804 · esp8266/Arduino · GitHub
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Fix optimistic_yield to not yield on each call after x µs #6804

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Merged
merged 9 commits into from
Feb 20, 2020
Merged

Fix optimistic_yield to not yield on each call after x µs #6804

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d6e603f
Fix optimistic_yield to not yield on every call after a loop runs for…
dok-net Nov 18, 2019
598361f
Substitute micros() by CPU cycles - faster, but large values for inte…
dok-net Nov 19, 2019
3d7423b
Move yield start time set to esp_yield_within_cont
dok-net Nov 19, 2019
3767791
Allow constexpr evalution to occur. optimistic_yield is always called…
dok-net Dec 2, 2019
5544357
Due to 3rd party use of symbol optimistic_yield without #include <Ard…
dok-net Dec 2, 2019
8d2eca5
Remove long-since disused define.
dok-net Dec 18, 2019
50fab51
No need for preprocessor undefinition of optimistic_yield, after all.
dok-net Dec 24, 2019
afe4021
10000 Corrections after review remarks; thanks @earlephilhower
dok-net Feb 20, 2020
5100bee
Merge branch 'master' into optimistic_yield_recurrency
earlephilhower Feb 20, 2020
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Due to 3rd party use of symbol optimistic_yield without #include <Ard… 
…uino>, have to resort to preprocessor definition for inlining.
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@dok-net
dok-net committed Feb 5, 2020
commit 554435780b3db892d0002cec5e707ea3ec984532
9 changes: 2 additions & 7 deletions cores/esp8266/Arduino.h
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Original file line number Diff line number Diff line change
Expand Up @@ -212,16 +212,11 @@ extern "C" uint8 system_get_cpu_freq(void);

void __optimistic_yield(uint32_t intvl_cycles);

void inline optimistic_yield(uint32_t interval_us) __attribute__((always_inline));
void inline optimistic_yield(uint32_t interval_us) {
__optimistic_yield(interval_us *
#if defined(F_CPU)
clockCyclesPerMicrosecond()
#define optimistic_yield(interval_us) (__optimistic_yield(interval_us * clockCyclesPerMicrosecond()))
#else
getCpuFreqMHz()
#define optimistic_yield(interval_us) (__optimistic_yield(interval_us * getCpuFreqMHz()))
#endif
);
}

#define _PORT_GPIO16 1
#define digitalPinToPort(pin) (((pin)==16)?(_PORT_GPIO16):(0))
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11 changes: 11 additions & 0 deletions cores/esp8266/core_esp8266_main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,17 @@ extern "C" void __optimistic_yield(uint32_t intvl_cycles) {
}
}

#undef optimistic_yield
extern "C" void optimistic_yield(uint32_t interval_us) {
__optimistic_yield(interval_us *
#if defined(F_CPU)
clockCyclesPerMicrosecond()
#else
getCpuFreqMHz()
#endif
);
}

// Replace ets_intr_(un)lock with nestable versions
extern "C" void IRAM_ATTR ets_intr_lock() {
if (ets_intr_lock_stack_ptr < ETS_INTR_LOCK_NEST_MAX)
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