Update to minetest 5.4.0-dev

1 files changed, 27 insertions, 2 deletions

diff --git a/src/script/lua_api/l_internal.h b/src/script/lua_api/l_internal.h
index bbedfe46e..a86eeaf79 100644
--- a/src/script/lua_api/l_internal.h
+++ b/src/script/lua_api/l_internal.h
@@ -32,14 +32,39 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define luamethod_aliased(class, name, alias) {#name, class::l_##name}, {#alias, class::l_##name}
 #define API_FCT(name) registerFunction(L, #name, l_##name, top)
 
-#define MAP_LOCK_REQUIRED
-#define NO_MAP_LOCK_REQUIRED
+// For future use
+#define MAP_LOCK_REQUIRED ((void)0)
+#define NO_MAP_LOCK_REQUIRED ((void)0)
 
+/* In debug mode ensure no code tries to retrieve the server env when it isn't
+ * actually available (in CSM) */
+#if !defined(SERVER) && !defined(NDEBUG)
+#define DEBUG_ASSERT_NO_CLIENTAPI                    \
+	FATAL_ERROR_IF(getClient(L) != nullptr, "Tried " \
+		"to retrieve ServerEnvironment on client")
+#else
+#define DEBUG_ASSERT_NO_CLIENTAPI ((void)0)
+#endif
+
+// Retrieve ServerEnvironment pointer as `env` (no map lock)
 #define GET_ENV_PTR_NO_MAP_LOCK                              \
+	DEBUG_ASSERT_NO_CLIENTAPI;                               \
 	ServerEnvironment *env = (ServerEnvironment *)getEnv(L); \
 	if (env == NULL)                                         \
 		return 0
 
+// Retrieve ServerEnvironment pointer as `env`
 #define GET_ENV_PTR         \
 	MAP_LOCK_REQUIRED;      \
 	GET_ENV_PTR_NO_MAP_LOCK
+
+// Retrieve Environment pointer as `env` (no map lock)
+#define GET_PLAIN_ENV_PTR_NO_MAP_LOCK            \
+	Environment *env = (Environment *)getEnv(L); \
+	if (env == NULL)                             \
+		return 0
+
+// Retrieve Environment pointer as `env`
+#define GET_PLAIN_ENV_PTR         \
+	MAP_LOCK_REQUIRED;            \
+	GET_PLAIN_ENV_PTR_NO_MAP_LOCK