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[Bugfix] Manipulate deferred executor slot only if tokens match (#22722)

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Nick Brassel 2023-12-21 09:32:19 +11:00 committed by GitHub
parent 3afa2a9439
commit 2661ee282a
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1 changed files with 8 additions and 2 deletions
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10
quantum/deferred_exec.c
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@ -124,13 +124,19 @@ void deferred_exec_advanced_task(deferred_executor_t *table, size_t table_count,
// Run through each of the executors // Run through each of the executors
for (int i = 0; i < table_count; ++i) { for (int i = 0; i < table_count; ++i) {
deferred_executor_t *entry = &table[i]; deferred_executor_t *entry = &table[i];
deferred_token curr_token = entry->token;
// Check if we're supposed to execute this entry // Check if we're supposed to execute this entry
if (entry->token != INVALID_DEFERRED_TOKEN && ((int32_t)TIMER_DIFF_32(entry->trigger_time, now)) <= 0) { if (curr_token != INVALID_DEFERRED_TOKEN && ((int32_t)TIMER_DIFF_32(entry->trigger_time, now)) <= 0) {
// Invoke the callback and work work out if we should be requeued // Invoke the callback and work work out if we should be requeued
uint32_t delay_ms = entry->callback(entry->trigger_time, entry->cb_arg); uint32_t delay_ms = entry->callback(entry->trigger_time, entry->cb_arg);
// If the token has changed, then the callback has canceled and re-queued. Skip further processing.
if (entry->token != curr_token) {
continue;
}
// Update the trigger time if we have to repeat, otherwise clear it out // Update the trigger time if we have to repeat, otherwise clear it out
if (delay_ms > 0) { if (delay_ms > 0) {
// Intentionally add just the delay to the existing trigger time -- this ensures the next // Intentionally add just the delay to the existing trigger time -- this ensures the next