bugfix: init the lock of code cache at start

3rd/lua/lauxlib.c

@@ -1063,10 +1063,14 @@ clearcache() {
 
 static void
 init() {
-	SPIN_INIT(&CC);
 	CC.L = luaL_newstate();
 }
 
+LUALIB_API void
+luaL_initcodecache(void) {
+	SPIN_INIT(&CC);
+}
+
 static const void *
 load(const char *key) {
   if (CC.L == NULL)

3rd/lua/lualib.h

@@ -49,6 +49,7 @@ LUAMOD_API int (luaopen_package) (lua_State *L);
 
 #define LUA_CACHELIB
 LUAMOD_API int (luaopen_cache) (lua_State *L);
+LUALIB_API void (luaL_initcodecache) (void);
 
 /* open all previous libraries */
 LUALIB_API void (luaL_openlibs) (lua_State *L);

skynet-src/skynet_main.c

@@ -132,6 +132,11 @@ main(int argc, char *argv[]) {
 
 	struct skynet_config config;
 
+#ifdef LUA_CACHELIB
+	// init the lock of code cache
+	luaL_initcodecache();
+#endif
+
 	struct lua_State *L = luaL_newstate();
 	luaL_openlibs(L);	// link lua lib