/**
 * mds — A micro-display server
 * Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef MDS_MDS_SERVER_GLOBALS_H
#define MDS_MDS_SERVER_GLOBALS_H


#include <libmdsserver/linked-list.h>
#include <libmdsserver/hash-table.h>
#include <libmdsserver/fd-table.h>

#include <signal.h>
#include <pthread.h>
#include <stdint.h>



#define MDS_SERVER_VARS_VERSION  0



/**
 * Number of elements in `argv`
 */
extern int argc;

/**
 * Command line arguments
 */
extern char** argv;


/**
 * The program run state, 1 when running, 0 when shutting down
 */
extern volatile sig_atomic_t running;

/**
 * Non-zero when the program is about to re-exec.
 * Most at all times be at least as true as `terminating`.
 */
extern volatile sig_atomic_t reexecing;

/**
 * Non-zero when the program is about to terminate
 */
extern volatile sig_atomic_t terminating;


/**
 * The number of running slaves
 */
extern size_t running_slaves;

/**
 * Mutex for slave data
 */
extern pthread_mutex_t slave_mutex;

/**
 * Condition for slave data
 */
extern pthread_cond_t slave_cond;

/**
 * The thread that runs the master loop
 */
extern pthread_t master_thread;

/**
 * Map from client socket file descriptor to all information (client_t)
 */
extern fd_table_t client_map;

/**
 * List of client information (client_t)
 */
extern linked_list_t client_list;

/**
 * The next free ID for a client
 */
extern uint64_t next_client_id;

/**
 * The next free ID for a message modifications
 */
extern uint64_t next_modify_id;

/**
 * Mutex for message modification
 */
extern pthread_mutex_t modify_mutex;

/**
 * Condition for message modification
 */
extern pthread_cond_t modify_cond;

/**
 * Map from modification ID to waiting client
 */
extern hash_table_t modify_map;


#endif