3 * Structures and constants used in the query dispatch table
5 * Copyright (C) 1987-1998 by the Massachusetts Institute of Technology.
6 * For copying and distribution information, please see the file
11 enum query_type {MR_Q_RETRIEVE, MR_Q_UPDATE, MR_Q_APPEND, MR_Q_DELETE, MR_Q_SPECIAL};
13 /* Query Definition Structure */
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? */
33 /* Query Validation Structure */
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 */
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 */
53 /* Validated Object Types */
54 enum vo_type {V_NAME, V_ID, V_TYPE, V_TYPEDATA, V_RENAME, V_CHAR,
57 /* Validated Object Definition */
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) */
68 /* prototypes from increment.dc */
69 void incremental_before(enum tables table, char *qualx, char **argv);
70 void incremental_clear_before(void);
71 void incremental_after(enum tables table, char *qualx, char **argv);
72 void incremental_clear_after(void);
74 /* prototypes from qrtn.dc */
75 int check_query_access(struct query *q, char *argv[], client *cl);
76 int set_next_object_id(char *objectx, enum tables table, int limit);
77 int name_to_id(char *name, enum tables type, int *id);
78 int id_to_name(int id, enum tables type, char **name);
80 /* prototypes from qsubs.c */
81 void list_queries(client *cl, int (*action)(int, char *[], void *),
83 void help_query(struct query *q, int (*action)(int, char *[], void *),
85 struct query *get_query_by_name(char *name, int version);