diff options
Diffstat (limited to 'src/Bindings/LuaState.h')
| -rw-r--r-- | src/Bindings/LuaState.h | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/src/Bindings/LuaState.h b/src/Bindings/LuaState.h index 01faf2c26..80f5c3cc6 100644 --- a/src/Bindings/LuaState.h +++ b/src/Bindings/LuaState.h @@ -35,6 +35,7 @@ extern "C" #include "lua/src/lauxlib.h" } +#include <atomic> #include "../Vector3.h" #include "../Defines.h" #include "PluginManager.h" @@ -189,24 +190,29 @@ public: } /** Set the contained reference to the object at the specified Lua state's stack position. - If another reference has been previously contained, it is freed first. */ + If another reference has been previously contained, it is Clear()-ed first. */ bool RefStack(cLuaState & a_LuaState, int a_StackPos); - /** Frees the contained reference, if any. */ + /** Frees the contained reference, if any. + Untracks the reference from its canon Lua state. */ void Clear(void); - /** Returns true if the contained reference is valid. */ + /** Returns true if the contained reference is valid. + (Note that depending on this value is not thread-safe, another thread may invalidate the ref in the meantime. It is meant for quick ASSERTs only). */ bool IsValid(void); /** Returns true if the reference resides in the specified Lua state. - Internally, compares the reference's canon Lua state. */ + Internally, compares the reference's canon Lua state. + (Note that depending on this value is not thread-safe, another thread may modify the ref in the meantime. It is meant for quick ASSERTs only). */ bool IsSameLuaState(cLuaState & a_LuaState); protected: friend class cLuaState; - /** The mutex protecting m_Ref against multithreaded access */ - cCriticalSection * m_CS; + /** The mutex protecting m_Ref against multithreaded access. + Actually points to the canon Lua state's m_CriticalSection. + Is nullptr when ref is empty (not bound). */ + std::atomic<cCriticalSection *> m_CS; /** Reference to the Lua callback */ cRef m_Ref; @@ -254,7 +260,7 @@ public: template <typename... Args> bool Call(Args &&... args) { - auto cs = m_CS; + auto cs = m_CS.load(); if (cs == nullptr) { return false; @@ -336,7 +342,7 @@ public: template <typename... Args> bool CallTableFn(const char * a_FnName, Args &&... args) { - auto cs = m_CS; + auto cs = m_CS.load(); if (cs == nullptr) { return false; @@ -356,7 +362,7 @@ public: template <typename... Args> bool CallTableFnWithSelf(const char * a_FnName, Args &&... args) { - auto cs = m_CS; + auto cs = m_CS.load(); if (cs == nullptr) { return false; |