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polledTimeout: add option to use CPU count instead of millis() (#5870)

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* polledTimeout: add option to use CPU count instead of millis()

* use more "using" alias

* more c++/clear code, using typename (thanks @devyte)

* rename class name to include unit, introduce timeMax() and check it with assert()

* remove useless defines

* improve api readability, add micro-second unit

* update example

* mock: emulate getCycleCount, add/fix polledTimeout CI test

* + nano-seconds, assert -> message, comments, host test

* allow 0 for timeout (enables immediate timeout, fix division by 0)

* typo, set member instead of local variable

* unify error message

* slight change on checkExpired() allows "never expired"
also removed printed message, add YieldAndDelay, simplify calculations

* remove traces of debug.h/cpp in this PR

* include missing <limits> header

* back to original expired test, introduce boolean _neverExpires, fix reset(), getTimeout() is invalid

* fix expiredOneShot with _timeout==0 check

* reenable getTimeout()

* expose checkExpired with unit conversion

* fix timing comments, move critical code to iram

* add member ::neverExpires and use it where relevant

* improve clarity

* remove exposed checkExpired(), adapt LEAmDNS with equivalent

* add API ::resetToNeverExpires(), use it in LEAmDNS

* remove offending constness from ::flagged() LEAmDNS (due do API fix in PolledTimeout)

* simplify "Fast" base classes

* minor variable rename

* Fix examples

* compliance with good c++ manners

* minor changes for consistency

* add missing const

* expired() and bool() moved to iram

* constexpr compensation computing

* add/update comments

* move neverExpires and alwaysExpired
This commit is contained in:
david gauchard
2019-04-05 15:50:53 +02:00
committed by Develo
parent f0eb5509a0
commit 9a2ed274f3
15 changed files with 344 additions and 92 deletions
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24
libraries/esp8266/examples/BlinkPolledTimeout/BlinkPolledTimeout.ino
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@ -38,20 +38,34 @@ void ledToggle() {
}
esp8266::polledTimeout::periodic halfPeriod(500); //use fully qualified type and avoid importing all ::esp8266 namespace to the global namespace
esp8266::polledTimeout::periodicFastUs halfPeriod(500000); //use fully qualified type and avoid importing all ::esp8266 namespace to the global namespace
// the setup function runs only once at start
void setup() {
Serial.begin(115200);
Serial.println();
Serial.printf("periodic/oneShotMs::timeMax() = %u ms\n", (uint32_t)esp8266::polledTimeout::periodicMs::timeMax());
Serial.printf("periodic/oneShotFastMs::timeMax() = %u ms\n", (uint32_t)esp8266::polledTimeout::periodicFastMs::timeMax());
Serial.printf("periodic/oneShotFastUs::timeMax() = %u us\n", (uint32_t)esp8266::polledTimeout::periodicFastUs::timeMax());
Serial.printf("periodic/oneShotFastNs::timeMax() = %u ns\n", (uint32_t)esp8266::polledTimeout::periodicFastNs::timeMax());
#if 0 // 1 for debugging polledTimeout
Serial.printf("periodic/oneShotMs::rangeCompensate = %u\n", (uint32_t)esp8266::polledTimeout::periodicMs::rangeCompensate);
Serial.printf("periodic/oneShotFastMs::rangeCompensate = %u\n", (uint32_t)esp8266::polledTimeout::periodicFastMs::rangeCompensate);
Serial.printf("periodic/oneShotFastUs::rangeCompensate = %u\n", (uint32_t)esp8266::polledTimeout::periodicFastUs::rangeCompensate);
Serial.printf("periodic/oneShotFastNs::rangeCompensate = %u\n", (uint32_t)esp8266::polledTimeout::periodicFastNs::rangeCompensate);
#endif
pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED_BUILTIN pin as an output
using esp8266::polledTimeout::oneShot; //import the type to the local namespace
using esp8266::polledTimeout::oneShotMs; //import the type to the local namespace
//STEP1; turn the led ON
ledOn();
//STEP2: wait for ON timeout
oneShot timeoutOn(2000);
oneShotMs timeoutOn(2000);
while (!timeoutOn) {
yield();
}
@ -60,7 +74,7 @@ void setup() {
ledOff();
//STEP4: wait for OFF timeout to assure the led is kept off for this time before exiting setup
oneShot timeoutOff(2000);
oneShotMs timeoutOff(2000);
while (!timeoutOff) {
yield();
}