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refactor Lua result handling for safety

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this massively improves thread safety and cleanly serializes accesses
into the lua engine's result objects where accesses before were
extremely unsafe and could access a corrupt/invalid stack.

this fixes various obscure crashes related to accessing results,
without changing any observable behavior.
This commit is contained in:
Lion Kortlepel
2026-04-18 18:16:16 +02:00
parent 0c864665bb
commit b3e8d86cef
11 changed files with 498 additions and 133 deletions
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src/TPluginMonitor.cpp
+3 -2
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@@ -69,8 +69,9 @@ void TPluginMonitor::operator()() {
auto StateID = mEngine->GetStateIDForPlugin(fs::path(Pair.first).parent_path());
auto Res = mEngine->EnqueueScript(StateID, Chunk);
Res->WaitUntilReady();
if (Res->Error) {
beammp_lua_errorf("Error while hot-reloading \"{}\": {}", Pair.first, Res->ErrorMessage);
if (Res->IsError()) {
auto Snapshot = Res->GetDetachedSnapshot();
beammp_lua_errorf("Error while hot-reloading \"{}\": {}", Pair.first, Snapshot.ErrorMessage);
} else {
mEngine->ReportErrors(mEngine->TriggerLocalEvent(StateID, "onInit"));
mEngine->ReportErrors(mEngine->TriggerEvent("onFileChanged", "", Pair.first));