andersk Git - moira.git/blame_incremental

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Commit	Line	Data
	1	/* $Id$
	2	*
	3	* Structures and constants used in the query dispatch table
	4	*
	5	* Copyright (C) 1987-1998 by the Massachusetts Institute of Technology.
	6	* For copying and distribution information, please see the file
	7	* <mit-copyright.h>.
	8	*/
	9
	10	/* Query Types */
	11	enum query_type {RETRIEVE, UPDATE, APPEND, DELETE, SPECIAL};
	12
	13	/* Query Definition Structure */
	14	struct query
	15	{
	16	char name; / query name */
	17	char shortname; / abbreviated query name (must be 4 chars) */
	18	int version; /* query version */
	19	enum query_type type; /* query type */
	20	char rvar; / range variable */
	21	enum tables rtable; /* range table */
	22	char tlist; / target list */
	23	char *fields; / input and output variable names (for help) */
	24	int vcnt; /* variable count */
	25	char qual; / format string for "where" clause */
	26	int argc; /* number of args for qualifier */
	27	char sort; / fields to sort on */
	28	struct validate validate; / validation support */
	29	int acl; /* hint as to query ACL for this query */
	30	int everybody; /* is the default user on this ACL? */
	31	};
	32
	33	/* Query Validation Structure */
	34	struct validate
	35	{
	36	/* object validation (e.g., user, filesys, type) */
	37	struct valobj valobj; / array of object validation descriptors */
	38	int objcnt; /* size of array */
	39	/* row validation - retrieve (exists = any(rvar.field where qual)) */
	40	char field; / field to check for */
	41	char qual; / format string for "where" clause */
	42	int argc; /* number of args used in qual */
	43	/* values field containing current max object id */
	44	char *object_id;
	45	/* routine to verify access permission on objects */
	46	int (acs_rtn)(struct query q, char Argv[], client cl);
	47	/* pre-processing routine (var setup only) */
	48	int (pre_rtn)(struct query q, char Argv[], client cl);
	49	/* post-processing routine */
	50	int (*post_rtn)();
	51	};
	52
	53	/* Validated Object Types */
	54	enum vo_type {V_NAME, V_ID, V_TYPE, V_TYPEDATA, V_RENAME, V_CHAR,
	55	V_LEN, V_NUM};
	56
	57	/* Validated Object Definition */
	58	struct valobj
	59	{
	60	enum vo_type type;
	61	int index; /* index of object to validate */
	62	enum tables table; /* table containing object */
	63	char namefield; / table's fieldname for object */
	64	char idfield; / table's corresponding id field (if any) */
	65	int error;
	66	};
	67
	68
	69	/* prototypes from cache.dc */
	70	void flush_cache(void);
	71	int name_to_id(char name, enum tables type, int id);
	72	int id_to_name(int id, enum tables type, char **name);
	73	int cache_entry(char *name, enum tables type, int id);
	74	void flush_name(char *name, enum tables type);
	75	void cache_commit(void);
	76	void cache_abort(void);
	77
	78	/* prototypes from increment.dc */
	79	void incremental_before(enum tables table, char qualx, char *argv);
	80	void incremental_clear_before(void);
	81	void incremental_after(enum tables table, char qualx, char *argv);
	82	void incremental_clear_after(void);
	83
	84	/* prototypes from qrtn.dc */
	85	int check_query_access(struct query q, char argv[], client *cl);
	86	int set_next_object_id(char *objectx, enum tables table, int limit);
	87
	88	/* prototypes from qsubs.c */
	89	void list_queries(client cl, int (action)(int, char [], void ),
	90	void *actarg);
	91	void help_query(struct query q, int (action)(int, char [], void ),
	92	void *actarg);
	93	struct query get_query_by_name(char name, int version);