[thirdparty/cups.git] / scheduler / subscriptions.h

/*
 * "$Id$"
 *
 *   Subscription definitions for the CUPS scheduler.
 *
 *   Copyright 2007-2010 by Apple Inc.
 *   Copyright 1997-2007 by Easy Software Products, all rights reserved.
 *
 *   These coded instructions, statements, and computer programs are the
 *   property of Apple Inc. and are protected by Federal copyright
 *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
 *   which should have been included with this file.  If this file is
 *   file is missing or damaged, see the license at "http://www.cups.org/".
 */

/*
 * Event mask enumeration...
 */

typedef enum
{
  /* Individual printer events... */
  CUPSD_EVENT_PRINTER_STATE = 0x0001,	/* Sent after generic printer state change */
  CUPSD_EVENT_PRINTER_RESTARTED = 0x0002,
					/* Sent after printer restarted */
  CUPSD_EVENT_PRINTER_SHUTDOWN = 0x0004,/* Sent after printer shutdown */
  CUPSD_EVENT_PRINTER_STOPPED = 0x0008,	/* Sent after printer stopped */

  CUPSD_EVENT_PRINTER_CONFIG = 0x0010,	/* Send after add/modify changes attrs */
  CUPSD_EVENT_PRINTER_FINISHINGS_CHANGED = 0x0020,
					/* Sent after finishings-supported changed */
  CUPSD_EVENT_PRINTER_MEDIA_CHANGED = 0x0040,
					/* Sent after media-supported changed */
  CUPSD_EVENT_PRINTER_ADDED = 0x0080,	/* Sent after printer added */
  CUPSD_EVENT_PRINTER_DELETED = 0x0100,	/* Sent after printer deleted */
  CUPSD_EVENT_PRINTER_MODIFIED = 0x0200,/* Sent after printer modified */
  CUPSD_EVENT_PRINTER_QUEUE_ORDER_CHANGED = 0x0400,
					/* Sent when the order of jobs is changed */

  /* Convenience printer event groupings... */
  CUPSD_EVENT_PRINTER_STATE_CHANGED = 0x000f,
					/* STATE + RESTARTED + SHUTDOWN + STOPPED */
  CUPSD_EVENT_PRINTER_CONFIG_CHANGED = 0x0070,
					/* CONFIG + FINISHINGS_CHANGED + MEDIA_CHANGED */
  CUPSD_EVENT_PRINTER_CHANGED = 0x07ff,	/* All of the above */

  /* Individual job events... */
  CUPSD_EVENT_JOB_STATE = 0x0800,	/* Any state change */
  CUPSD_EVENT_JOB_CREATED = 0x1000,	/* Send after job is created */
  CUPSD_EVENT_JOB_COMPLETED = 0x2000,	/* Sent after job is completed */
  CUPSD_EVENT_JOB_STOPPED = 0x4000,	/* Sent after job is stopped */
  CUPSD_EVENT_JOB_CONFIG_CHANGED = 0x8000,
					/* Sent after set-job-attributes */
  CUPSD_EVENT_JOB_PROGRESS = 0x10000,	/* Sent for each page */

  /* Convenience job event grouping... */
  CUPSD_EVENT_JOB_STATE_CHANGED = 0x7800,
					/* STATE + CREATED + COMPLETED + STOPPED */

  /* Server events... */
  CUPSD_EVENT_SERVER_RESTARTED = 0x20000,/* Sent after server restarts */
  CUPSD_EVENT_SERVER_STARTED = 0x40000,	/* Sent when server first starts */
  CUPSD_EVENT_SERVER_STOPPED = 0x80000,	/* Sent when server is stopped */
  CUPSD_EVENT_SERVER_AUDIT = 0x100000,	/* Security-related stuff */

  /* Everything and nothing... */
  CUPSD_EVENT_NONE = 0,			/* Nothing */
  CUPSD_EVENT_ALL = 0x1fffff		/* Everything */
} cupsd_eventmask_t;


/*
 * Notiification support structures...
 */

typedef struct cupsd_event_s		/**** Event structure ****/
{
  cupsd_eventmask_t	event;		/* Event */
  time_t		time;		/* Time of event */
  ipp_t			*attrs;		/* Notification message */
  cupsd_printer_t	*dest;		/* Associated printer, if any */
  cupsd_job_t		*job;		/* Associated job, if any */
} cupsd_event_t; 

typedef struct cupsd_subscription_s	/**** Subscription structure ****/
{
  int			id;		/* subscription-id */
  unsigned		mask;		/* Event mask */
  char			*owner;		/* notify-subscriber-user-name */
  char			*recipient;	/* notify-recipient-uri, if applicable */
  unsigned char		user_data[64];	/* notify-user-data */
  int			user_data_len;	/* Length of notify-user-data */
  int			lease;		/* notify-lease-duration */
  int			interval;	/* notify-time-interval */
  cupsd_printer_t	*dest;		/* notify-printer-uri, if any */
  cupsd_job_t		*job;		/* notify-job-id, if any */
  int			pid;		/* Process ID of notifier */
  int			pipe;		/* Pipe to notifier */
  int			status;		/* Exit status of notifier */
  time_t		last;		/* Time of last notification */
  time_t		expire;		/* Lease expiration time */
  int			first_event_id,	/* First event-id in cache */
			next_event_id;	/* Next event-id to use */
  cups_array_t		*events;	/* Cached events */
} cupsd_subscription_t;


/*
 * Globals...
 */

VAR int		MaxSubscriptions VALUE(100),
					/* Overall subscription limit */
		MaxSubscriptionsPerJob VALUE(0),
					/* Per-job subscription limit */
		MaxSubscriptionsPerPrinter VALUE(0),
					/* Per-printer subscription limit */
		MaxSubscriptionsPerUser VALUE(0),
					/* Per-user subscription limit */
		NextSubscriptionId VALUE(1),
					/* Next subscription ID */
		DefaultLeaseDuration VALUE(86400),
					/* Default notify-lease-duration */
		MaxLeaseDuration VALUE(0);
					/* Maximum notify-lease-duration */
VAR cups_array_t *Subscriptions VALUE(NULL);
					/* Active subscriptions */

VAR int		MaxEvents VALUE(100);	/* Maximum number of events */

VAR unsigned	LastEvent VALUE(0);	/* Last event(s) processed */
VAR int		NotifierPipes[2] VALUE2(-1, -1);
					/* Pipes for notifier error/debug output */
VAR cupsd_statbuf_t *NotifierStatusBuffer VALUE(NULL);
					/* Status buffer for pipes */


/*
 * Prototypes...
 */

extern void	cupsdAddEvent(cupsd_eventmask_t event, cupsd_printer_t *dest,
		              cupsd_job_t *job, const char *text, ...);
extern cupsd_subscription_t *
		cupsdAddSubscription(unsigned mask, cupsd_printer_t *dest,
		                     cupsd_job_t *job, const char *uri,
				     int sub_id);
extern void	cupsdDeleteAllSubscriptions(void);
extern void	cupsdDeleteSubscription(cupsd_subscription_t *sub, int update);
extern const char *
		cupsdEventName(cupsd_eventmask_t event);
extern cupsd_eventmask_t
		cupsdEventValue(const char *name);

extern cupsd_subscription_t *
		cupsdFindSubscription(int id);
extern void	cupsdExpireSubscriptions(cupsd_printer_t *dest,
		                         cupsd_job_t *job);
extern void	cupsdLoadAllSubscriptions(void);
extern void	cupsdSaveAllSubscriptions(void);
extern void	cupsdStopAllNotifiers(void);


/*
 * End of "$Id$".
 */
Commit	Line	Data
ef416fc2	1	/*
f2d18633	2	* "$Id$"
ef416fc2	3	*
10d09e33	4	* Subscription definitions for the CUPS scheduler.
ef416fc2	5	*
10d09e33	6	* Copyright 2007-2010 by Apple Inc.
f899b121	7	* Copyright 1997-2007 by Easy Software Products, all rights reserved.
ef416fc2	8	*
ef416fc2	9	* These coded instructions, statements, and computer programs are the
bc44d920	10	* property of Apple Inc. and are protected by Federal copyright
	11	* law. Distribution and use rights are outlined in the file "LICENSE.txt"
	12	* which should have been included with this file. If this file is
	13	* file is missing or damaged, see the license at "http://www.cups.org/".
ef416fc2	14	*/
	15
	16	/*
	17	* Event mask enumeration...
	18	*/
	19
	20	typedef enum
	21	{
	22	/* Individual printer events... */
d9bca400 MS	23	CUPSD_EVENT_PRINTER_STATE = 0x0001, /* Sent after generic printer state change */
d9bca400 MS	24	CUPSD_EVENT_PRINTER_RESTARTED = 0x0002,
ef416fc2	25	/* Sent after printer restarted */
d9bca400 MS	26	CUPSD_EVENT_PRINTER_SHUTDOWN = 0x0004,/* Sent after printer shutdown */
	27	CUPSD_EVENT_PRINTER_STOPPED = 0x0008, /* Sent after printer stopped */
	28
	29	CUPSD_EVENT_PRINTER_CONFIG = 0x0010, /* Send after add/modify changes attrs */
	30	CUPSD_EVENT_PRINTER_FINISHINGS_CHANGED = 0x0020,
ef416fc2	31	/* Sent after finishings-supported changed */
d9bca400	32	CUPSD_EVENT_PRINTER_MEDIA_CHANGED = 0x0040,
ef416fc2	33	/* Sent after media-supported changed */
d9bca400 MS	34	CUPSD_EVENT_PRINTER_ADDED = 0x0080, /* Sent after printer added */
	35	CUPSD_EVENT_PRINTER_DELETED = 0x0100, /* Sent after printer deleted */
	36	CUPSD_EVENT_PRINTER_MODIFIED = 0x0200,/* Sent after printer modified */
	37	CUPSD_EVENT_PRINTER_QUEUE_ORDER_CHANGED = 0x0400,
	38	/* Sent when the order of jobs is changed */
ef416fc2	39
ef416fc2	40	/* Convenience printer event groupings... */
d9bca400 MS	41	CUPSD_EVENT_PRINTER_STATE_CHANGED = 0x000f,
	42	/* STATE + RESTARTED + SHUTDOWN + STOPPED */
	43	CUPSD_EVENT_PRINTER_CONFIG_CHANGED = 0x0070,
	44	/* CONFIG + FINISHINGS_CHANGED + MEDIA_CHANGED */
	45	CUPSD_EVENT_PRINTER_CHANGED = 0x07ff, /* All of the above */
ef416fc2	46
ef416fc2	47	/* Individual job events... */
d9bca400 MS	48	CUPSD_EVENT_JOB_STATE = 0x0800, /* Any state change */
	49	CUPSD_EVENT_JOB_CREATED = 0x1000, /* Send after job is created */
	50	CUPSD_EVENT_JOB_COMPLETED = 0x2000, /* Sent after job is completed */
	51	CUPSD_EVENT_JOB_STOPPED = 0x4000, /* Sent after job is stopped */
	52	CUPSD_EVENT_JOB_CONFIG_CHANGED = 0x8000,
ef416fc2	53	/* Sent after set-job-attributes */
d9bca400	54	CUPSD_EVENT_JOB_PROGRESS = 0x10000, /* Sent for each page */
ef416fc2	55
ef416fc2	56	/* Convenience job event grouping... */
d9bca400 MS	57	CUPSD_EVENT_JOB_STATE_CHANGED = 0x7800,
d9bca400 MS	58	/* STATE + CREATED + COMPLETED + STOPPED */
ef416fc2	59
ef416fc2	60	/* Server events... */
d9bca400 MS	61	CUPSD_EVENT_SERVER_RESTARTED = 0x20000,/* Sent after server restarts */
	62	CUPSD_EVENT_SERVER_STARTED = 0x40000, /* Sent when server first starts */
	63	CUPSD_EVENT_SERVER_STOPPED = 0x80000, /* Sent when server is stopped */
	64	CUPSD_EVENT_SERVER_AUDIT = 0x100000, /* Security-related stuff */
ef416fc2	65
	66	/* Everything and nothing... */
	67	CUPSD_EVENT_NONE = 0, /* Nothing */
d9bca400	68	CUPSD_EVENT_ALL = 0x1fffff /* Everything */
ef416fc2	69	} cupsd_eventmask_t;
	70
	71
	72	/*
	73	* Notiification support structures...
	74	*/
	75
	76	typedef struct cupsd_event_s /** Event structure **/
	77	{
	78	cupsd_eventmask_t event; /* Event */
	79	time_t time; /* Time of event */
	80	ipp_t attrs; / Notification message */
	81	cupsd_printer_t dest; / Associated printer, if any */
	82	cupsd_job_t job; / Associated job, if any */
	83	} cupsd_event_t;
	84
	85	typedef struct cupsd_subscription_s /** Subscription structure **/
	86	{
	87	int id; /* subscription-id */
	88	unsigned mask; /* Event mask */
	89	char owner; / notify-subscriber-user-name */
	90	char recipient; / notify-recipient-uri, if applicable */
	91	unsigned char user_data[64]; /* notify-user-data */
	92	int user_data_len; /* Length of notify-user-data */
	93	int lease; /* notify-lease-duration */
	94	int interval; /* notify-time-interval */
	95	cupsd_printer_t dest; / notify-printer-uri, if any */
	96	cupsd_job_t job; / notify-job-id, if any */
	97	int pid; /* Process ID of notifier */
	98	int pipe; /* Pipe to notifier */
	99	int status; /* Exit status of notifier */
	100	time_t last; /* Time of last notification */
	101	time_t expire; /* Lease expiration time */
	102	int first_event_id, /* First event-id in cache */
10d09e33 MS	103	next_event_id; /* Next event-id to use */
10d09e33 MS	104	cups_array_t events; / Cached events */
ef416fc2	105	} cupsd_subscription_t;
	106
	107
	108	/*
	109	* Globals...
	110	*/
	111
	112	VAR int MaxSubscriptions VALUE(100),
	113	/* Overall subscription limit */
	114	MaxSubscriptionsPerJob VALUE(0),
	115	/* Per-job subscription limit */
	116	MaxSubscriptionsPerPrinter VALUE(0),
	117	/* Per-printer subscription limit */
	118	MaxSubscriptionsPerUser VALUE(0),
	119	/* Per-user subscription limit */
	120	NextSubscriptionId VALUE(1),
	121	/* Next subscription ID */
	122	DefaultLeaseDuration VALUE(86400),
	123	/* Default notify-lease-duration */
	124	MaxLeaseDuration VALUE(0);
	125	/* Maximum notify-lease-duration */
	126	VAR cups_array_t *Subscriptions VALUE(NULL);
	127	/* Active subscriptions */
	128
ed486911	129	VAR int MaxEvents VALUE(100); /* Maximum number of events */
ef416fc2	130
ed486911	131	VAR unsigned LastEvent VALUE(0); /* Last event(s) processed */
ef416fc2	132	VAR int NotifierPipes[2] VALUE2(-1, -1);
	133	/* Pipes for notifier error/debug output */
	134	VAR cupsd_statbuf_t *NotifierStatusBuffer VALUE(NULL);
	135	/* Status buffer for pipes */
	136
	137
	138	/*
	139	* Prototypes...
	140	*/
	141
	142	extern void cupsdAddEvent(cupsd_eventmask_t event, cupsd_printer_t *dest,
	143	cupsd_job_t job, const char text, ...);
	144	extern cupsd_subscription_t *
	145	cupsdAddSubscription(unsigned mask, cupsd_printer_t *dest,
	146	cupsd_job_t job, const char uri,
	147	int sub_id);
ef416fc2	148	extern void cupsdDeleteAllSubscriptions(void);
	149	extern void cupsdDeleteSubscription(cupsd_subscription_t *sub, int update);
	150	extern const char *
	151	cupsdEventName(cupsd_eventmask_t event);
	152	extern cupsd_eventmask_t
	153	cupsdEventValue(const char *name);
	154
	155	extern cupsd_subscription_t *
	156	cupsdFindSubscription(int id);
	157	extern void cupsdExpireSubscriptions(cupsd_printer_t *dest,
	158	cupsd_job_t *job);
	159	extern void cupsdLoadAllSubscriptions(void);
	160	extern void cupsdSaveAllSubscriptions(void);
ef416fc2	161	extern void cupsdStopAllNotifiers(void);
ef416fc2	162
	163
	164	/*
f2d18633	165	* End of "$Id$".
ef416fc2	166	*/