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OpenMW is an open implementation of the Morrowind engine
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1.9 kB · 53 lines
C++
at master
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354#include "scripttracker.hpp"
namespace LuaUtil{ namespace { constexpr unsigned sMinLoadedFrames = 50; constexpr unsigned sMaxLoadedFrames = 600; constexpr unsigned sUsageFrameGrowth = 10; constexpr std::size_t sMinToProcess = 1; constexpr std::size_t sToProcessDiv = 20; // 5% }
void ScriptTracker::onLoad(ScriptsContainer& container) { mLoadedScripts.emplace(container.getWeakPointer(), sMinLoadedFrames + mFrame); }
void ScriptTracker::unloadInactiveScripts(LuaView& lua) { // This code is technically incorrect if mFrame overflows... but at 300fps that takes about half a year std::size_t toProcess = std::max(mLoadedScripts.size() / sToProcessDiv, sMinToProcess); while (toProcess && !mLoadedScripts.empty()) { --toProcess; auto [ptr, ttl] = std::move(mLoadedScripts.front()); mLoadedScripts.pop(); ScriptsContainer* container = *ptr; // Object no longer exists, cease tracking if (!container) continue; // Ignore activity of local scripts in the active grid if (container->isActive()) ttl = std::max(ttl, mFrame + sMinLoadedFrames); else { bool activeSinceLastPop = container->mRequiredLoading; if (activeSinceLastPop) { container->mRequiredLoading = false; ttl = std::min(ttl + sUsageFrameGrowth, mFrame + sMaxLoadedFrames); } else if (ttl < mFrame) { container->ensureUnloaded(lua); continue; } } mLoadedScripts.emplace(std::move(ptr), ttl); } ++mFrame; }}