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fix: cap gossipPois_ vector growth and add soft frame rate limiter

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Cap gossipPois_ at 200 entries (both gossip POI and quest POI paths) to
prevent unbounded memory growth from rapid gossip/quest queries. Add soft
240 FPS frame rate limiter when vsync is off to prevent 100% CPU usage —
sleeps for remaining frame budget when frame completes in under 4ms.
This commit is contained in:
Kelsi 2026-03-20 18:51:05 -07:00
parent 4bd237b654
commit 2b99011cd8
2 changed files with 12 additions and 0 deletions
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9
src/core/application.cpp
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@ -646,6 +646,15 @@ void Application::run() {
LOG_ERROR("GPU device lost — exiting application");
window->setShouldClose(true);
}
// Soft frame rate cap when vsync is off to prevent 100% CPU usage.
// Target ~240 FPS max (~4.2ms per frame); vsync handles its own pacing.
if (!window->isVsyncEnabled() && deltaTime < 0.004f) {
float sleepMs = (0.004f - deltaTime) * 1000.0f;
if (sleepMs > 0.5f)
std::this_thread::sleep_for(std::chrono::microseconds(
static_cast<int64_t>(sleepMs * 900.0f))); // 90% of target to account for sleep overshoot
}
}
} catch (...) {
watchdogRunning.store(false, std::memory_order_release);

3
src/game/game_handler.cpp
View file

@ -2539,6 +2539,8 @@ void GameHandler::handlePacket(network::Packet& packet) {
poi.icon = icon;
poi.data = data;
poi.name = std::move(name);
// Cap POI count to prevent unbounded growth from rapid gossip queries
if (gossipPois_.size() >= 200) gossipPois_.erase(gossipPois_.begin());
gossipPois_.push_back(std::move(poi));
LOG_DEBUG("SMSG_GOSSIP_POI: x=", poiX, " y=", poiY, " icon=", icon);
break;
@ -21031,6 +21033,7 @@ void GameHandler::handleQuestPoiQueryResponse(network::Packet& packet) {
poi.name = questTitle.empty() ? "Quest objective" : questTitle;
LOG_DEBUG("Quest POI: questId=", questId, " mapId=", mapId,
" centroid=(", poi.x, ",", poi.y, ") title=", poi.name);
if (gossipPois_.size() >= 200) gossipPois_.erase(gossipPois_.begin());
gossipPois_.push_back(std::move(poi));
}
}