1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2013 Index Data
4 Pazpar2 is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #ifndef PAZPAR2_SESSION_H
21 #define PAZPAR2_SESSION_H
23 #include <yaz/comstack.h>
24 #include <yaz/pquery.h>
26 #include <yaz/yaz-ccl.h>
28 #include "facet_limit.h"
35 enum pazpar2_error_code {
39 PAZPAR2_MISSING_PARAMETER,
40 PAZPAR2_MALFORMED_PARAMETER_VALUE,
41 PAZPAR2_MALFORMED_PARAMETER_ENCODING,
42 PAZPAR2_MALFORMED_SETTING,
43 PAZPAR2_HITCOUNTS_FAILED,
44 PAZPAR2_RECORD_MISSING,
46 PAZPAR2_CONFIG_TARGET,
48 PAZPAR2_NOT_IMPLEMENTED,
50 PAZPAR2_ALREADY_BLOCKED,
55 // Represents a database as viewed from one session, possibly with settings overriden
57 struct session_database
59 struct database *database;
61 struct setting **settings;
62 normalize_record_t map;
63 struct session_database *next;
66 #define SESSION_WATCH_SHOW 0
67 #define SESSION_WATCH_RECORD 1
68 #define SESSION_WATCH_SHOW_PREF 2
69 #define SESSION_WATCH_TERMLIST 3
70 #define SESSION_WATCH_BYTARGET 4
71 #define SESSION_WATCH_MAX 4
73 #define SESSION_MAX_TERMLISTS 10
75 typedef void (*session_watchfun)(void *data);
80 struct termlist *termlist;
83 struct session_watchentry {
85 http_channel_observer_t obs;
93 struct conf_service *service; /* service in use for this session */
94 struct session_database *databases; // All databases, settings overriden
95 struct client_list *clients_active; // Clients connected for current search
96 struct client_list *clients_cached; // Clients in cache
97 NMEM session_nmem; // Nmem for session-permanent storage
98 NMEM nmem; // Nmem for each operation (i.e. search, result set, etc)
100 struct named_termlist termlists[SESSION_MAX_TERMLISTS];
101 struct relevance *relevance;
102 struct reclist *reclist;
105 struct session_watchentry watchlist[SESSION_WATCH_MAX + 1];
108 int number_of_warnings_unknown_elements;
109 int number_of_warnings_unknown_metadata;
110 normalize_cache_t normalize_cache;
111 YAZ_MUTEX session_mutex;
113 int settings_modified;
114 facet_limits_t facet_limits;
115 struct reclist_sortparms *sorted_results;
120 int num_no_connection;
130 struct hitsbytarget {
134 Odr_int approximation;
143 char *suggestions_xml;
146 struct hitsbytarget *get_hitsbytarget(struct session *s, int *count, NMEM nmem);
147 struct session *new_session(NMEM nmem, struct conf_service *service,
148 unsigned session_id);
149 int sessions_count(void);
150 void session_destroy(struct session *s);
151 void session_init_databases(struct session *s);
152 void statistics(struct session *s, struct statistics *stat);
154 void session_sort(struct session *se, struct reclist_sortparms *sp,
155 const char *mergekey, const char *rank);
157 enum pazpar2_error_code session_search(struct session *s, const char *query,
158 const char *startrecs,
160 const char *filter, const char *limit,
161 const char **addinfo,
162 const char **addinfo2,
163 struct reclist_sortparms *sort_parm,
164 const char *mergekey,
166 struct record_cluster **show_range_start(struct session *s,
167 struct reclist_sortparms *sp,
169 int *num, int *total,
171 Odr_int *approximation,
172 void (*ready)(void *data),
173 struct http_channel *chan);
174 int session_fetch_more(struct session *s);
175 void show_range_stop(struct session *s, struct record_cluster **recs);
177 struct record_cluster *show_single_start(struct session *s, const char *id,
178 struct record_cluster **prev_r,
179 struct record_cluster **next_r);
180 void show_single_stop(struct session *s, struct record_cluster *rec);
181 int session_set_watch(struct session *s, int what, session_watchfun fun, void *data, struct http_channel *c);
182 int session_active_clients(struct session *s);
183 int session_is_preferred_clients_ready(struct session *s);
184 void session_apply_setting(struct session *se, char *dbname, char *setting, char *value);
185 const char *session_setting_oneval(struct session_database *db, int offset);
187 int ingest_record(struct client *cl, const char *rec, int record_no, NMEM nmem);
188 void session_alert_watch(struct session *s, int what);
189 void add_facet(struct session *s, const char *type, const char *value, int count);
191 int session_check_cluster_limit(struct session *se, struct record_cluster *rec);
193 void perform_termlist(struct http_channel *c, struct session *se, const char *name, int num, int version);
194 void session_log(struct session *s, int level, const char *fmt, ...)
196 __attribute__ ((format (printf, 3, 4)))
204 * c-file-style: "Stroustrup"
205 * indent-tabs-mode: nil
207 * vim: shiftwidth=4 tabstop=8 expandtab