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[python/port] Use msleep (not millis) in micropython_port_interruptible_msleep

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This commit is contained in:
Léa Saviot
2019-10-15 15:18:37 +02:00
committed by EmilieNumworks
parent 069319a7ae
commit 577e7db8dd
1 changed files with 10 additions and 3 deletions
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13
python/port/helpers.cpp
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@@ -23,13 +23,20 @@ bool micropython_port_vm_hook_loop() {
}
bool micropython_port_interruptible_msleep(uint32_t delay) {
uint32_t start = Ion::Timing::millis();
while (Ion::Timing::millis() - start < delay) {
/* We don't use millis because the systick drifts when changing the HCLK
* frequency. */
constexpr uint32_t interruptionCheckDelay = 100;
const uint32_t numberOfInterruptionChecks = delay / interruptionCheckDelay;
uint32_t remainingInterruptionChecks = numberOfInterruptionChecks;
while (remainingInterruptionChecks > 0) {
// We assume the time taken by the interruption check is insignificant
if (micropython_port_interrupt_if_needed()) {
return true;
}
Ion::Timing::msleep(1);
remainingInterruptionChecks--;
Ion::Timing::msleep(interruptionCheckDelay);
}
Ion::Timing::msleep(delay - numberOfInterruptionChecks * interruptionCheckDelay);
return false;
}