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[host] Use integer math in millis()/micros() (#15994)

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This commit is contained in:
J. Nick Koston
2026-04-26 03:39:24 -05:00
committed by GitHub
parent f092e619d8
commit dc57969afd
1 changed files with 2 additions and 7 deletions
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esphome/components/host/core.cpp
+2 -7
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@@ -8,7 +8,6 @@
#include <csignal>
#include <sched.h>
#include <time.h>
#include <cmath>
#include <cstdlib>
namespace {
@@ -22,9 +21,7 @@ void HOT yield() { ::sched_yield(); }
uint32_t IRAM_ATTR HOT millis() {
struct timespec spec;
clock_gettime(CLOCK_MONOTONIC, &spec);
time_t seconds = spec.tv_sec;
uint32_t ms = round(spec.tv_nsec / 1e6);
return ((uint32_t) seconds) * 1000U + ms;
return static_cast<uint32_t>(spec.tv_sec * 1000ULL + spec.tv_nsec / 1000000);
}
uint64_t millis_64() {
struct timespec spec;
@@ -43,9 +40,7 @@ void HOT delay(uint32_t ms) {
uint32_t IRAM_ATTR HOT micros() {
struct timespec spec;
clock_gettime(CLOCK_MONOTONIC, &spec);
time_t seconds = spec.tv_sec;
uint32_t us = round(spec.tv_nsec / 1e3);
return ((uint32_t) seconds) * 1000000U + us;
return static_cast<uint32_t>(spec.tv_sec * 1000000ULL + spec.tv_nsec / 1000);
}
void IRAM_ATTR HOT delayMicroseconds(uint32_t us) {
struct timespec ts;