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annotate.h
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/* annotate.h -- Annotation manipulation routines
*
* Copyright (c) 1994-2008 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $Id: annotate.h,v 1.13 2010/01/06 17:01:30 murch Exp $
*/
#ifndef ANNOTATE_H
#define ANNOTATE_H
#include "charset.h" /* for comp_pat */
#include "imapd.h"
#include "mailbox.h"
#include "mboxname.h"
#include "mboxlist.h"
#include "prot.h"
#include "util.h"
#include "strarray.h"
#define FNAME_GLOBALANNOTATIONS "/annotations.db"
/* List of strings, for fetch and search argument blocks */
struct strlist {
char *s; /* String */
comp_pat *p; /* Compiled pattern, for search */
struct strlist *next;
};
typedef struct annotate_db annotate_db_t;
/* List of attrib-value pairs */
struct attvaluelist {
char *attrib;
struct buf value;
struct attvaluelist *next;
};
/* entry-attribute(s) struct */
struct entryattlist {
char *entry;
struct attvaluelist *attvalues;
struct entryattlist *next;
};
typedef struct annotate_state annotate_state_t;
typedef struct annotate_recalc_state annotate_recalc_state_t;
annotate_state_t *annotate_state_new(void);
void annotate_state_free(annotate_state_t **statep);
void annotate_state_set_auth(annotate_state_t *state,
int isadmin, const char *userid,
struct auth_state *auth_state);
void annotate_state_set_server(annotate_state_t *state);
void annotate_state_set_mailbox(annotate_state_t *state,
struct mailbox *mailbox);
int annotate_state_set_mailbox_mbe(annotate_state_t *state,
struct mboxlist_entry *);
void annotate_state_set_message(annotate_state_t *state,
struct mailbox *mailbox,
unsigned int uid);
void annotate_state_unset_scope(annotate_state_t *state);
/* String List Management */
void appendstrlist(struct strlist **l, char *s);
void appendstrlistpat(struct strlist **l, char *s);
void freestrlist(struct strlist *l);
/* Attribute Management (also used by ID) */
void appendattvalue(struct attvaluelist **l, const char *attrib,
const struct buf *value);
void dupattvalues(struct attvaluelist **dst,
const struct attvaluelist *src);
void freeattvalues(struct attvaluelist *l);
/* Entry Management */
void appendentryatt(struct entryattlist **l, const char *entry,
struct attvaluelist *attvalues);
void setentryatt(struct entryattlist **l, const char *entry,
const char *attrib, const struct buf *value);
void clearentryatt(struct entryattlist **l, const char *entry,
const char *attrib);
void dupentryatt(struct entryattlist **l,
const struct entryattlist *);
size_t sizeentryatts(const struct entryattlist *);
void freeentryatts(struct entryattlist *l);
/* initialize database structures */
void annotatemore_init(
int (*fetch_func)(const char *, const char *,
const strarray_t *, const strarray_t *),
int (*store_func)(const char *, const char *,
struct entryattlist *));
/* open the annotation db */
void annotatemore_open(void);
typedef int (*annotatemore_find_proc_t)(const char *mailbox,
uint32_t uid,
const char *entry, const char *userid,
const struct buf *value, void *rock);
/* For findall(), matches any non-zero uid */
#define ANNOTATE_ANY_UID ((unsigned int)~0)
/* 'proc'ess all annotations matching 'mailbox' and 'entry' */
int annotatemore_findall(const char *mboxname, uint32_t uid, const char *entry,
annotatemore_find_proc_t proc, void *rock);
/* fetch annotations and output results */
typedef void (*annotate_fetch_cb_t)(const char *mboxname, /* internal */
uint32_t uid,
const char *entry,
struct attvaluelist *,
void *rock);
int annotate_state_fetch(annotate_state_t *state,
const strarray_t *entries, const strarray_t *attribs,
annotate_fetch_cb_t callback, void *rock,
int *maxsizeptr);
/* lookup a single annotation and return result */
int annotatemore_lookup(const char *mboxname, const char *entry,
const char *userid, struct buf *value);
/* lookup a single per-message annotation and return result */
int annotatemore_msg_lookup(const char *mboxname, uint32_t uid, const char *entry,
const char *userid, struct buf *value);
/* store annotations. Requires an open transaction */
int annotate_state_store(annotate_state_t *state, struct entryattlist *l);
/* low-level interface for use by mbdump routines.
* Requires an open transaction. */
int annotate_state_write(annotate_state_t *, const char *entry,
const char *userid, const struct buf *value);
/* rename the annotations for 'oldmboxname' to 'newmboxname'
* if 'olduserid' is non-NULL then the private annotations
* for 'olduserid' are renamed to 'newuserid'
* Uses its own transaction.
*/
int annotate_rename_mailbox(struct mailbox *oldmailbox,
struct mailbox *newmailbox);
/* Handle a message COPY, by copying all the appropriate
* per-message annotations. Requires an open transaction. */
int annotate_msg_copy(struct mailbox *oldmailbox, uint32_t olduid,
struct mailbox *newmailbox, uint32_t newuid,
const char *userid);
/* delete the annotations for the given message */
int annotate_msg_expunge(struct mailbox *mailbox, uint32_t uid);
/* delete the annotations for 'mailbox'
* Uses its own transaction. */
int annotate_delete_mailbox(struct mailbox *mailbox);
/* recalc APIs */
int annotate_recalc_begin(struct mailbox *mailbox,
annotate_recalc_state_t **arsp,
int reconstruct);
void annotate_recalc_add(annotate_recalc_state_t *ars,
uint32_t uid);
int annotate_recalc_commit(annotate_recalc_state_t *ars);
void annotate_recalc_abort(annotate_recalc_state_t *ars);
/* Open a new transaction. Any currently open transaction
* is aborted. */
int annotatemore_begin(void);
/* Abort the current transaction */
void annotatemore_abort(void);
/* Commit the current transaction */
int annotatemore_commit(void);
/* close the database */
void annotatemore_close(void);
/* done with database stuff */
void annotate_done(void);
/* These APIs allow calling code to hold an extra reference to a
* per-message database for an extended period of time, which can be a
* useful performance optimisation when doing lots of annotate
* operations that might otherwise spend a lot of time opening and
* closing databases. Also, if annotate_getdb() does not returns zero
* (success) then calling code can assume there are no per-message
* annotations at all on the mailbox. These APIs are for performance
* optimisations only; the other annotate APIs will manage their own
* references internally. */
int annotate_getdb(const char *mboxname, annotate_db_t **dbp);
void annotate_putdb(annotate_db_t **dbp);
#endif /* ANNOTATE_H */

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