Ken Van Hoeylandt
85 lines
2.0 KiB
C++
85 lines
2.0 KiB
C++
#include <Tactility/kernel/SystemEvents.h>
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#include <Tactility/Mutex.h>
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#include <tactility/check.h>
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#include <tactility/log.h>
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#include <Tactility/CoreDefines.h>
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#include <list>
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namespace tt::kernel {
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constexpr auto* TAG = "SystemEvents";
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struct SubscriptionData {
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SystemEventSubscription id;
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SystemEvent event;
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OnSystemEvent handler;
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};
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static Mutex mutex;
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static SystemEventSubscription subscriptionCounter = 0;
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static std::list<SubscriptionData> subscriptions;
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static const char* getEventName(SystemEvent event) {
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switch (event) {
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using enum SystemEvent;
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case BootInitHalBegin:
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return TT_STRINGIFY(BootInitHalBegin);
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case BootInitHalEnd:
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return TT_STRINGIFY(BootInitHalEnd);
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case BootSplash:
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return TT_STRINGIFY(BootSplash);
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case NetworkConnected:
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return TT_STRINGIFY(NetworkConnected);
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case NetworkDisconnected:
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return TT_STRINGIFY(NetworkDisconnected);
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case Time:
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return TT_STRINGIFY(Time);
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}
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check(false); // Missing case above
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}
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void publishSystemEvent(SystemEvent event) {
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LOG_I(TAG, "%s", getEventName(event));
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if (mutex.lock(MAX_TICKS)) {
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for (auto& subscription : subscriptions) {
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if (subscription.event == event) {
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subscription.handler(event);
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}
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}
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mutex.unlock();
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}
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}
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SystemEventSubscription subscribeSystemEvent(SystemEvent event, OnSystemEvent handler) {
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if (mutex.lock(MAX_TICKS)) {
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auto id = ++subscriptionCounter;
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subscriptions.push_back({
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.id = id,
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.event = event,
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.handler = handler
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});
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mutex.unlock();
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return id;
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} else {
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check(false);
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}
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}
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void unsubscribeSystemEvent(SystemEventSubscription subscription) {
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if (mutex.lock(MAX_TICKS)) {
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std::erase_if(subscriptions, [subscription](auto& item) {
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return (item.id == subscription);
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});
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mutex.unlock();
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}
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}
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}
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