/***************************************************************************
 *   Copyright (C) 2006 by couriousous, blino, trem                        *
 *   couriousous@mandriva.org                                              *
 *   oblin@mandriva.com                                                    *
 *   trem@mandriva.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 2 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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef __PRCSYS_H__
#define __PRCSYS_H__

#define _GNU_SOURCE
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>
#include <pthread.h>
#include <sys/time.h>
#include <getopt.h>
#include <stdarg.h>

#define NAME_LENGTH 256 

#define MODE_START 'S'
#define MODE_KILL 'K'

#define CMD_START "start"
#define CMD_STOP "stop"

#define FORMAT_CMD 		"%s %s 2>&1"
#define FORMAT_CMD_OUTPUT	"%s %s > %s 2>&1"

#define malloc_or_die(ptr,size) do { ptr = malloc(size); if(ptr == NULL) { printf("Out of memory, Line: %d\n",__LINE__); exit(1); } } while(0)


/* Here is a simplified internal service representations :

struct service
-------------   ,-> -------------   ,->-------------
- service 1 -  /    - service 2 -  /   - service N -
-    next   ->~     -    next   ->~    -   next    -> NULL
- provides  ->+     - provides  -      - provides  -
- requires  ->|--+  - requires  -      - requires  -
------------- |  |  -------------      -------------
              |  |
struct proreq |   \
--------------+    \  struct proreq     
- Provide 1   -     ->--------------  
- next        ->+     - Requires 1 -   
--------------- |     -   serv     ->---> Pointer over a struct service.   
                /     -   next     ->+   
               /      -------------- |
--------------+                      /
- Provide 2   -                     /
- next        ->+     -------------+ 
--------------- |     - Requires 2 -
                /     -   serv     -
               /      -   next     ->+
--------------+       -------------- |
- Provide N   -                      /
- next        ->NULL                /
---------------       -------------+
                      - Requires N -
                      -   serv     -
                      -   next     ->NULL
                      --------------
*/   

/* list of requires/provides */
struct proreq {
	char name[NAME_LENGTH];  /* Requires/Provide name */
	struct service * serv;
	struct proreq * next;    /* next requires/provide in the list */
};

/* list of services */
struct service {
	char name[NAME_LENGTH];   /* name of the service */
	char file[NAME_LENGTH];   /* path to service' file */
	pthread_mutex_t mut;      /* mutex, used to protect cond */
	pthread_cond_t cond;      /* condition to tell "I'm started" change */
	int ready;                /* this service is ready to be manager, ie started or stopped */
	int is_lsb;		  /* this is a LSB script */
 	int compat_mode;	  /* run this service in compat mode if true */
	int raw_console;	  /* flag to tell "I want direct console access", ie when the service is
				     inteactive */
	int count; 		  /* used for internal loop detection between service */
	struct proreq * provides; /* list of service' provides */
	struct proreq * requires; /* list of service' requires */
	struct service * next;    /* next service in the list */
};

/* head of the service list */
extern struct service *servlist;

/* mutex to protect console access */
extern pthread_mutex_t console_mutex;

/* general current mode, MODE_START or MODE_KILL */
extern char mode;

/* test mode, we don't execute script, we only show in which order we launch them */
extern int test_mode;

/* help mode, we only write help and quit */
extern int help_mode;

/* debug mode, if enabled, log a lot of stuff */
extern int debug;

#endif