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Handle Event Queue Overflow #1048

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Handle Event Queue Overflow #1048

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dcd23fd
avoid task overflow
Jamidd Aug 12, 2024
d0b625f
fix style
Jamidd Aug 26, 2024
f7c0c2f
make variable detect_event_loop_blockage local
Jamidd Aug 26, 2024
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Binary file modified vehicle/OVMS.V3/components/ovms_webserver/assets/charts.js.gz
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23 changes: 21 additions & 2 deletions vehicle/OVMS.V3/main/ovms_events.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -225,7 +225,7 @@ OvmsEvents::OvmsEvents()
cmd_eventtrace->RegisterCommand("off","Turn event tracing OFF",event_trace);

m_taskqueue = xQueueCreate(CONFIG_OVMS_HW_EVENT_QUEUE_SIZE,sizeof(event_queue_t));
xTaskCreatePinnedToCore(EventLaunchTask, "OVMS Events", 8192, (void*)this, 8, &m_taskid, CORE(1));
xTaskCreatePinnedToCore(EventLaunchTask, "OVMS Events", 12288, (void*)this, 8, &m_taskid, CORE(1));
AddTaskToMap(m_taskid);

#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
Expand All @@ -246,6 +246,7 @@ OvmsEvents::~OvmsEvents()
void OvmsEvents::EventTask()
{
event_queue_t msg;
int detect_event_loop_blockage = 0;

esp_task_wdt_add(NULL); // WATCHDOG is active for this task
while(1)
Expand All @@ -259,7 +260,25 @@ void OvmsEvents::EventTask()
break;
case EVENT_signal:
m_current_event = msg.body.signal.event;
HandleQueueSignalEvent(&msg);
if (startsWith(m_current_event, "ticker.") && uxQueueSpacesAvailable(m_taskqueue) < CONFIG_OVMS_HW_EVENT_QUEUE_SIZE/5)
{
ESP_LOGE(TAG, "Droped %s, counter %i", m_current_event.c_str(), detect_event_loop_blockage);
FreeQueueSignalEvent(&msg);
detect_event_loop_blockage++;
if (detect_event_loop_blockage > 30)
{
ESP_LOGE(TAG, "Timer service / ticker timer has died => aborting");
MyBoot.Restart();
}
}
else
{
HandleQueueSignalEvent(&msg);
if (startsWith(m_current_event, "ticker.") && detect_event_loop_blockage > 0)
{
detect_event_loop_blockage--;
}
}
esp_task_wdt_reset(); // Reset WATCHDOG timer for this task
m_current_event.clear();
break;
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