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/*
* UNIVERSE.H
*/
#ifndef UNIVERSE_H
#define UNIVERSE_H
#include "lua.h"
#include "threading.h"
// MUTEX_T
// ################################################################################################
/*
* Do we want to activate full lane tracking feature? (EXPERIMENTAL)
*/
#define HAVE_LANE_TRACKING 1
// ################################################################################################
// everything regarding the a Lanes universe is stored in that global structure
// held as a full userdata in the master Lua state that required it for the first time
// don't forget to initialize all members in LG_configure()
struct s_Universe
{
// for verbose errors
bool_t verboseErrors;
lua_CFunction on_state_create_func;
struct s_Keepers* keepers;
// Initialized by 'init_once_LOCKED()': the deep userdata Linda object
// used for timers (each lane will get a proxy to this)
volatile struct DEEP_PRELUDE* timer_deep; // = NULL
#if HAVE_LANE_TRACKING
MUTEX_T tracking_cs;
struct s_lane* volatile tracking_first; // will change to TRACKING_END if we want to activate tracking
#endif // HAVE_LANE_TRACKING
MUTEX_T selfdestruct_cs;
// require() serialization
MUTEX_T require_cs;
// Lock for reference counter inc/dec locks (to be initialized by outside code) TODO: get rid of this and use atomics instead!
MUTEX_T deep_lock;
MUTEX_T mtid_lock;
int last_mt_id;
#if USE_DEBUG_SPEW
int debugspew_indent_depth;
#endif // USE_DEBUG_SPEW
struct s_lane* volatile selfdestruct_first;
// After a lane has removed itself from the chain, it still performs some processing.
// The terminal desinit sequence should wait for all such processing to terminate before force-killing threads
int volatile selfdestructing_count;
};
struct s_Universe* universe_get( lua_State* L);
struct s_Universe* universe_create( lua_State* L);
void universe_store( lua_State* L, struct s_Universe* U);
#endif // UNIVERSE_H
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