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Skip net_poll and timers unless their interrupt has fired

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This commit is contained in:
Ian Gulliver
2026-04-10 22:00:34 +09:00
parent 8edf8c2d4f
commit f2d98ef4f1
4 changed files with 15 additions and 3 deletions
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10
firmware/include/timer_queue.h
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@@ -15,6 +15,7 @@ inline bool operator<(const timer_entry& a, const timer_entry& b) {
struct timer_queue {
sorted_list<timer_entry, 16> queue;
alarm_id_t alarm = -1;
volatile bool irq_pending = false;
void schedule(absolute_time_t when, std::function<void()> fn) {
queue.insert({when, std::move(fn)});
@@ -26,6 +27,8 @@ struct timer_queue {
}
void run() {
if (!irq_pending) return;
irq_pending = false;
while (!queue.empty()) {
auto& front = queue.front();
if (absolute_time_diff_us(get_absolute_time(), front.when) > 0) break;
@@ -39,12 +42,15 @@ struct timer_queue {
bool empty() const { return queue.empty(); }
private:
static int64_t alarm_cb(alarm_id_t, void*) { return 0; }
static int64_t alarm_cb(alarm_id_t, void* user_data) {
static_cast<timer_queue*>(user_data)->irq_pending = true;
return 0;
}
void arm() {
if (alarm >= 0) cancel_alarm(alarm);
alarm = -1;
if (!queue.empty())
alarm = add_alarm_at(queue.front().when, alarm_cb, nullptr, false);
alarm = add_alarm_at(queue.front().when, alarm_cb, this, false);
}
};