diff options
Diffstat (limited to 'src/Bindings/LuaState.cpp')
| -rw-r--r-- | src/Bindings/LuaState.cpp | 220 |
1 files changed, 8 insertions, 212 deletions
diff --git a/src/Bindings/LuaState.cpp b/src/Bindings/LuaState.cpp index 98507e96c..200878cf7 100644 --- a/src/Bindings/LuaState.cpp +++ b/src/Bindings/LuaState.cpp @@ -20,10 +20,6 @@ extern "C" #include "../Entities/Entity.h" #include "../BlockEntities/BlockEntity.h" - - - - // fwd: "SQLite/lsqlite3.c" extern "C" { @@ -43,10 +39,6 @@ extern "C" const cLuaState::cRet cLuaState::Return = {}; -/** Each Lua state stores a pointer to its creating cLuaState in Lua globals, under this name. -This way any cLuaState can reference the main cLuaState's TrackedCallbacks, mutex etc. */ -static const char * g_CanonLuaStateGlobalName = "_CuberiteInternal_CanonLuaState"; - @@ -122,101 +114,6 @@ cLuaStateTracker & cLuaStateTracker::Get(void) //////////////////////////////////////////////////////////////////////////////// -// cLuaState::cCallback: - -bool cLuaState::cCallback::RefStack(cLuaState & a_LuaState, int a_StackPos) -{ - // Check if the stack contains a function: - if (!lua_isfunction(a_LuaState, a_StackPos)) - { - return false; - } - - // Clear any previous callback: - Clear(); - - // Add self to LuaState's callback-tracking: - a_LuaState.TrackCallback(*this); - - // Store the new callback: - cCSLock Lock(m_CS); - m_Ref.RefStack(a_LuaState, a_StackPos); - return true; -} - - - - - -void cLuaState::cCallback::Clear(void) -{ - // Free the callback reference: - lua_State * luaState = nullptr; - { - cCSLock Lock(m_CS); - if (!m_Ref.IsValid()) - { - return; - } - luaState = m_Ref.GetLuaState(); - m_Ref.UnRef(); - } - - // Remove from LuaState's callback-tracking: - cLuaState(luaState).UntrackCallback(*this); -} - - - - - -bool cLuaState::cCallback::IsValid(void) -{ - cCSLock lock(m_CS); - return m_Ref.IsValid(); -} - - - - - -bool cLuaState::cCallback::IsSameLuaState(cLuaState & a_LuaState) -{ - cCSLock lock(m_CS); - if (!m_Ref.IsValid()) - { - return false; - } - auto canonState = a_LuaState.QueryCanonLuaState(); - if (canonState == nullptr) - { - return false; - } - return (m_Ref.GetLuaState() == static_cast<lua_State *>(*canonState)); -} - - - - - -void cLuaState::cCallback::Invalidate(void) -{ - cCSLock Lock(m_CS); - if (!m_Ref.IsValid()) - { - LOGD("%s: Invalidating an already invalid callback at %p, this should not happen", - __FUNCTION__, reinterpret_cast<void *>(this) - ); - return; - } - m_Ref.UnRef(); -} - - - - - -//////////////////////////////////////////////////////////////////////////////// // cLuaState: cLuaState::cLuaState(const AString & a_SubsystemName) : @@ -273,10 +170,6 @@ void cLuaState::Create(void) luaL_openlibs(m_LuaState); m_IsOwned = true; cLuaStateTracker::Add(*this); - - // Add the CanonLuaState value into the Lua state, so that we can get it from anywhere: - lua_pushlightuserdata(m_LuaState, reinterpret_cast<void *>(this)); - lua_setglobal(m_LuaState, g_CanonLuaStateGlobalName); } @@ -313,16 +206,6 @@ void cLuaState::Close(void) Detach(); return; } - - // Invalidate all callbacks: - { - cCSLock Lock(m_CSTrackedCallbacks); - for (auto & c: m_TrackedCallbacks) - { - c->Invalidate(); - } - } - cLuaStateTracker::Del(*this); lua_close(m_LuaState); m_LuaState = nullptr; @@ -938,18 +821,6 @@ void cLuaState::Push(std::chrono::milliseconds a_Value) -void cLuaState::Pop(int a_NumValuesToPop) -{ - ASSERT(IsValid()); - - lua_pop(m_LuaState, a_NumValuesToPop); - m_NumCurrentFunctionArgs -= a_NumValuesToPop; -} - - - - - bool cLuaState::GetStackValue(int a_StackPos, AString & a_Value) { size_t len = 0; @@ -976,24 +847,6 @@ bool cLuaState::GetStackValue(int a_StackPos, bool & a_ReturnedVal) -bool cLuaState::GetStackValue(int a_StackPos, cCallback & a_Callback) -{ - return a_Callback.RefStack(*this, a_StackPos); -} - - - - - -bool cLuaState::GetStackValue(int a_StackPos, cCallbackPtr & a_Callback) -{ - return a_Callback->RefStack(*this, a_StackPos); -} - - - - - bool cLuaState::GetStackValue(int a_StackPos, cPluginManager::CommandResult & a_Result) { if (lua_isnumber(m_LuaState, a_StackPos)) @@ -1678,7 +1531,7 @@ int cLuaState::CopyStackFrom(cLuaState & a_SrcLuaState, int a_SrcStart, int a_Sr LOGWARNING("%s: Unsupported value: '%s' at stack position %d. Can only copy numbers, strings, bools and classes!", __FUNCTION__, lua_typename(a_SrcLuaState, t), i ); - a_SrcLuaState.LogStackValues("Stack where copying failed:"); + a_SrcLuaState.LogStack("Stack where copying failed:"); lua_pop(m_LuaState, i - a_SrcStart); return -1; } @@ -1705,16 +1558,16 @@ void cLuaState::ToString(int a_StackPos, AString & a_String) -void cLuaState::LogStackValues(const char * a_Header) +void cLuaState::LogStack(const char * a_Header) { - LogStackValues(m_LuaState, a_Header); + LogStack(m_LuaState, a_Header); } -void cLuaState::LogStackValues(lua_State * a_LuaState, const char * a_Header) +void cLuaState::LogStack(lua_State * a_LuaState, const char * a_Header) { // Format string consisting only of %s is used to appease the compiler LOG("%s", (a_Header != nullptr) ? a_Header : "Lua C API Stack contents:"); @@ -1739,21 +1592,6 @@ void cLuaState::LogStackValues(lua_State * a_LuaState, const char * a_Header) -cLuaState * cLuaState::QueryCanonLuaState(void) -{ - // Get the CanonLuaState global from Lua: - auto cb = WalkToNamedGlobal(g_CanonLuaStateGlobalName); - if (!cb.IsValid()) - { - return nullptr; - } - return reinterpret_cast<cLuaState *>(lua_touserdata(m_LuaState, -1)); -} - - - - - int cLuaState::ReportFnCallErrors(lua_State * a_LuaState) { LOGWARNING("LUA: %s", lua_tostring(a_LuaState, -1)); @@ -1788,50 +1626,6 @@ int cLuaState::BreakIntoDebugger(lua_State * a_LuaState) -void cLuaState::TrackCallback(cCallback & a_Callback) -{ - // Get the CanonLuaState global from Lua: - auto canonState = QueryCanonLuaState(); - if (canonState == nullptr) - { - LOGWARNING("%s: Lua state %p has invalid CanonLuaState!", __FUNCTION__, reinterpret_cast<void *>(m_LuaState)); - return; - } - - // Add the callback: - cCSLock Lock(canonState->m_CSTrackedCallbacks); - canonState->m_TrackedCallbacks.push_back(&a_Callback); -} - - - - - -void cLuaState::UntrackCallback(cCallback & a_Callback) -{ - // Get the CanonLuaState global from Lua: - auto canonState = QueryCanonLuaState(); - if (canonState == nullptr) - { - LOGWARNING("%s: Lua state %p has invalid CanonLuaState!", __FUNCTION__, reinterpret_cast<void *>(m_LuaState)); - return; - } - - // Remove the callback: - cCSLock Lock(canonState->m_CSTrackedCallbacks); - auto & trackedCallbacks = canonState->m_TrackedCallbacks; - trackedCallbacks.erase(std::remove_if(trackedCallbacks.begin(), trackedCallbacks.end(), - [&a_Callback](cCallback * a_StoredCallback) - { - return (a_StoredCallback == &a_Callback); - } - )); -} - - - - - //////////////////////////////////////////////////////////////////////////////// // cLuaState::cRef: @@ -1887,7 +1681,7 @@ void cLuaState::cRef::RefStack(cLuaState & a_LuaState, int a_StackPos) { UnRef(); } - m_LuaState = a_LuaState; + m_LuaState = &a_LuaState; lua_pushvalue(a_LuaState, a_StackPos); // Push a copy of the value at a_StackPos onto the stack m_Ref = luaL_ref(a_LuaState, LUA_REGISTRYINDEX); } @@ -1898,9 +1692,11 @@ void cLuaState::cRef::RefStack(cLuaState & a_LuaState, int a_StackPos) void cLuaState::cRef::UnRef(void) { + ASSERT(m_LuaState->IsValid()); // The reference should be destroyed before destroying the LuaState + if (IsValid()) { - luaL_unref(m_LuaState, LUA_REGISTRYINDEX, m_Ref); + luaL_unref(*m_LuaState, LUA_REGISTRYINDEX, m_Ref); } m_LuaState = nullptr; m_Ref = LUA_REFNIL; |