2011-06-02 16:36:15 +02:00
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/* -*- mode: c++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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2011-08-30 21:01:30 +02:00
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**
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2013-03-30 10:32:07 +01:00
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** Copyright (C) 2008-2013 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
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2010-08-25 20:40:07 +02:00
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software Foundation,
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** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**
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*/
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#include <stdlib.h>
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2012-12-16 13:17:58 +01:00
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#include <unistd.h>
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2010-08-25 20:40:07 +02:00
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#include <iostream>
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2012-12-16 13:17:58 +01:00
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2010-08-25 20:40:07 +02:00
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#include <string.h>
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#include <errno.h>
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2011-06-18 17:47:46 +02:00
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#include <algorithm>
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2010-09-05 11:37:12 +02:00
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#include <xapian.h>
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2012-12-16 13:17:58 +01:00
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2011-06-18 17:47:46 +02:00
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#include <string>
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2012-12-16 13:17:58 +01:00
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#include <set>
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2012-12-28 13:48:00 +01:00
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#include <map>
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2010-08-25 20:40:07 +02:00
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#include "mu-util.h"
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2011-05-19 06:32:09 +02:00
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#include "mu-msg.h"
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2010-08-25 20:40:07 +02:00
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#include "mu-msg-iter.h"
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2011-06-30 22:45:53 +02:00
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#include "mu-threader.h"
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2011-05-18 22:33:56 +02:00
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2012-12-28 13:48:00 +01:00
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struct ltstr {
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bool operator () (const std::string &s1,
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const std::string &s2) const {
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return g_strcmp0 (s1.c_str(), s2.c_str()) < 0;
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}
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};
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typedef std::map <std::string, unsigned, ltstr> msgid_docid_map;
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2011-06-18 17:47:46 +02:00
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class ThreadKeyMaker: public Xapian::KeyMaker {
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public:
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ThreadKeyMaker (GHashTable *threadinfo): _threadinfo(threadinfo) {}
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virtual std::string operator()(const Xapian::Document &doc) const {
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2011-06-23 23:21:54 +02:00
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MuMsgIterThreadInfo *ti;
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ti = (MuMsgIterThreadInfo*)g_hash_table_lookup
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2011-06-18 17:47:46 +02:00
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(_threadinfo,
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2011-08-30 21:01:30 +02:00
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GUINT_TO_POINTER(doc.get_docid()));
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2011-06-23 23:21:54 +02:00
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return std::string (ti && ti->threadpath ? ti->threadpath : "");
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2011-06-18 17:47:46 +02:00
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}
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private:
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2011-08-30 21:01:30 +02:00
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GHashTable *_threadinfo;
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2011-06-18 17:47:46 +02:00
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};
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2011-06-03 07:22:56 +02:00
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2010-08-25 20:40:07 +02:00
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struct _MuMsgIter {
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2011-08-30 21:01:30 +02:00
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public:
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2011-07-02 10:27:08 +02:00
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_MuMsgIter (Xapian::Enquire &enq, size_t maxnum,
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2012-12-16 13:17:58 +01:00
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MuMsgFieldId sortfield, MuMsgIterFlags flags):
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2012-12-27 10:07:52 +01:00
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_enq(enq), _thread_hash (0), _msg(0), _flags(flags),
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_skip_unreadable(flags & MU_MSG_ITER_FLAG_SKIP_UNREADABLE),
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2013-04-30 20:53:16 +02:00
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_skip_dups (flags & MU_MSG_ITER_FLAG_SKIP_DUPS) {
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2012-12-16 13:17:58 +01:00
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2012-12-27 10:07:52 +01:00
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bool descending = (flags & MU_MSG_ITER_FLAG_DESCENDING);
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bool threads = (flags & MU_MSG_ITER_FLAG_THREADS);
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2012-12-16 13:17:58 +01:00
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2012-12-25 17:49:14 +01:00
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// first, we get _all_ matches (G_MAXINT), based the threads
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// on that, then return <maxint> of those
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_matches = _enq.get_mset (0, G_MAXINT);
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2012-12-25 16:32:43 +01:00
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2012-12-25 19:33:02 +01:00
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if (_matches.empty())
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return;
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2012-12-27 10:07:52 +01:00
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if (threads) {
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_matches.fetch();
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_cursor = _matches.begin();
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2012-12-28 13:48:00 +01:00
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// NOTE: temporarily turn-off skipping duplicates, since we
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// need threadinfo for *all*
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_skip_dups = false;
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_thread_hash = mu_threader_calculate
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(this, _matches.size(), sortfield, descending);
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_skip_dups = (flags & MU_MSG_ITER_FLAG_SKIP_DUPS);
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2012-12-27 10:07:52 +01:00
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ThreadKeyMaker keymaker(_thread_hash);
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enq.set_sort_by_key (&keymaker, false);
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_matches = _enq.get_mset (0, maxnum);
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2011-06-03 07:22:56 +02:00
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2012-12-27 10:07:52 +01:00
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} else if (sortfield != MU_MSG_FIELD_ID_NONE) {
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enq.set_sort_by_value ((Xapian::valueno)sortfield,
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descending);
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_matches = _enq.get_mset (0, maxnum);
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_cursor = _matches.begin();
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}
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2012-12-27 14:59:15 +01:00
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_cursor = _matches.begin();
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2011-06-02 16:59:49 +02:00
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}
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2011-08-30 21:01:30 +02:00
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2011-06-02 16:59:49 +02:00
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~_MuMsgIter () {
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2011-08-30 21:01:30 +02:00
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if (_thread_hash)
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g_hash_table_destroy (_thread_hash);
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2011-09-03 09:48:36 +02:00
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2011-08-30 21:01:30 +02:00
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set_msg (NULL);
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}
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2011-09-03 09:48:36 +02:00
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const Xapian::Enquire& enquire() const { return _enq; }
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2011-08-30 21:01:30 +02:00
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Xapian::MSet& matches() { return _matches; }
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Xapian::MSet::const_iterator cursor () const { return _cursor; }
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void set_cursor (Xapian::MSetIterator cur) { _cursor = cur; }
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void cursor_next () { ++_cursor; }
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GHashTable *thread_hash () { return _thread_hash; }
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2012-12-16 13:17:58 +01:00
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MuMsg *msg() const { return _msg; }
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2011-08-30 21:01:30 +02:00
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MuMsg *set_msg (MuMsg *msg) {
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2011-06-02 16:59:49 +02:00
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if (_msg)
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mu_msg_unref (_msg);
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2011-08-30 21:01:30 +02:00
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return _msg = msg;
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2011-06-02 16:59:49 +02:00
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}
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2011-09-03 09:48:36 +02:00
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2012-12-16 13:17:58 +01:00
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MuMsgIterFlags flags() const { return _flags; }
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2013-04-09 20:20:25 +02:00
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const std::string msgid () const {
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const Xapian::Document doc (cursor().get_document());
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2013-04-30 20:53:16 +02:00
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return doc.get_value(MU_MSG_FIELD_ID_MSGID);
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2013-04-09 20:20:25 +02:00
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}
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unsigned docid () const {
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const Xapian::Document doc (cursor().get_document());
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return doc.get_docid();
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}
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2012-12-24 11:06:09 +01:00
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bool looks_like_dup () const {
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try {
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2012-12-27 14:59:15 +01:00
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const Xapian::Document doc (cursor().get_document());
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2012-12-28 13:48:00 +01:00
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// is this message in the preferred map? if
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// so, it's not a duplicate, otherwise, it
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// isn't
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2013-04-09 20:20:25 +02:00
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msgid_docid_map::const_iterator pref_iter (_preferred_map.find (msgid()));
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2012-12-28 13:48:00 +01:00
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if (pref_iter != _preferred_map.end()) {
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//std::cerr << "in the set!" << std::endl;
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2013-04-09 20:20:25 +02:00
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if ((*pref_iter).second == docid())
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2012-12-28 13:48:00 +01:00
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return false; // in the set: not a dup!
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else
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return true;
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}
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// otherwise, simply check if we've already seen this message-id,
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// and, if so, it's considered a dup
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2013-04-09 20:20:25 +02:00
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if (_msg_uid_set.find (msgid()) != _msg_uid_set.end()) {
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2012-12-24 11:06:09 +01:00
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return true;
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2012-12-25 16:32:43 +01:00
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} else {
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2013-04-09 20:20:25 +02:00
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_msg_uid_set.insert (msgid());
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2012-12-24 11:06:09 +01:00
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return false;
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}
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} catch (...) {
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2012-12-17 21:29:39 +01:00
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return true;
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2012-12-22 20:12:11 +01:00
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}
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2012-12-16 13:17:58 +01:00
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}
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2013-04-09 20:20:25 +02:00
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static void each_preferred (const char *msgid, gpointer docidp,
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msgid_docid_map *preferred_map) {
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2012-12-28 13:48:00 +01:00
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(*preferred_map)[msgid] = GPOINTER_TO_SIZE(docidp);
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}
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void set_preferred_map (GHashTable *preferred_hash) {
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if (!preferred_hash)
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_preferred_map.clear();
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else
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g_hash_table_foreach (preferred_hash,
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(GHFunc)each_preferred, &_preferred_map);
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}
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2012-12-24 13:59:48 +01:00
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2012-12-24 11:06:09 +01:00
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bool skip_dups () const { return _skip_dups; }
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bool skip_unreadable () const { return _skip_unreadable; }
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2011-08-30 21:01:30 +02:00
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private:
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2011-06-13 22:04:20 +02:00
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const Xapian::Enquire _enq;
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Xapian::MSet _matches;
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Xapian::MSet::const_iterator _cursor;
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2011-08-30 21:01:30 +02:00
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GHashTable *_thread_hash;
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2011-06-13 22:04:20 +02:00
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MuMsg *_msg;
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2012-12-16 13:17:58 +01:00
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MuMsgIterFlags _flags;
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2012-12-17 21:29:39 +01:00
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2012-12-24 11:06:09 +01:00
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mutable std::set <std::string, ltstr> _msg_uid_set;
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2012-12-28 13:48:00 +01:00
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bool _skip_unreadable;
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// the 'preferred map' (msgid->docid) is used when checking
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// for duplicates; if a message is in the preferred map, it
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// will not be excluded (but other messages with the same
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// msgid will)
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msgid_docid_map _preferred_map;
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bool _skip_dups;
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2010-08-25 20:40:07 +02:00
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};
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2012-08-19 08:57:49 +02:00
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2012-12-17 21:29:39 +01:00
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static gboolean
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is_msg_file_readable (MuMsgIter *iter)
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{
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2012-12-25 16:32:43 +01:00
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gboolean readable;
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2012-12-17 21:29:39 +01:00
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std::string path
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(iter->cursor().get_document().get_value(MU_MSG_FIELD_ID_PATH));
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if (path.empty())
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return FALSE;
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2012-12-25 16:32:43 +01:00
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readable = (access (path.c_str(), R_OK) == 0) ? TRUE : FALSE;
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return readable;
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2012-12-17 21:29:39 +01:00
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}
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2012-08-19 08:57:49 +02:00
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2012-12-16 13:17:58 +01:00
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MuMsgIter *
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2011-08-03 22:06:51 +02:00
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mu_msg_iter_new (XapianEnquire *enq, size_t maxnum,
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2012-12-16 13:17:58 +01:00
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MuMsgFieldId sortfield, MuMsgIterFlags flags,
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2012-08-19 08:57:49 +02:00
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GError **err)
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2010-08-25 20:40:07 +02:00
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{
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2011-05-18 22:51:52 +02:00
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g_return_val_if_fail (enq, NULL);
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2011-07-02 10:27:08 +02:00
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/* sortfield should be set to .._NONE when we're not threading */
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g_return_val_if_fail (mu_msg_field_id_is_valid (sortfield) ||
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sortfield == MU_MSG_FIELD_ID_NONE,
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FALSE);
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2010-08-25 20:40:07 +02:00
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try {
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2012-12-25 19:33:02 +01:00
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MuMsgIter *iter (new MuMsgIter ((Xapian::Enquire&)*enq,
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maxnum,
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sortfield,
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flags));
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2012-12-24 11:06:09 +01:00
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// note: we check if it's a dup even for the first message,
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// since we need its uid in the set for checking later messages
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if ((iter->skip_unreadable() && !is_msg_file_readable (iter)) ||
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(iter->skip_dups() && iter->looks_like_dup ()))
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mu_msg_iter_next (iter); /* skip! */
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2012-12-17 21:29:39 +01:00
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return iter;
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2011-08-30 21:01:30 +02:00
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2012-08-19 08:57:49 +02:00
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} catch (const Xapian::DatabaseModifiedError &dbmex) {
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mu_util_g_set_error (err, MU_ERROR_XAPIAN_MODIFIED,
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"database was modified; please reopen");
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return 0;
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} MU_XAPIAN_CATCH_BLOCK_G_ERROR_RETURN (err, MU_ERROR_XAPIAN, 0);
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2010-08-25 20:40:07 +02:00
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}
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void
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mu_msg_iter_destroy (MuMsgIter *iter)
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{
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2011-08-30 21:01:30 +02:00
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try { delete iter; } MU_XAPIAN_CATCH_BLOCK;
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2010-08-25 20:40:07 +02:00
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}
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2011-08-30 21:01:30 +02:00
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2012-12-28 13:48:00 +01:00
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2012-12-27 14:59:15 +01:00
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void
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2012-12-28 13:48:00 +01:00
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mu_msg_iter_set_preferred (MuMsgIter *iter, GHashTable *preferred_hash)
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2012-12-27 14:59:15 +01:00
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{
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g_return_if_fail (iter);
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2012-12-28 13:48:00 +01:00
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iter->set_preferred_map (preferred_hash);
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2012-12-27 14:59:15 +01:00
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}
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2010-08-25 20:40:07 +02:00
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MuMsg*
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2011-08-30 21:01:30 +02:00
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mu_msg_iter_get_msg_floating (MuMsgIter *iter)
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2010-11-25 20:49:25 +01:00
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{
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2011-08-30 21:01:30 +02:00
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g_return_val_if_fail (iter, NULL);
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g_return_val_if_fail (!mu_msg_iter_is_done(iter), NULL);
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try {
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MuMsg *msg;
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GError *err;
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Xapian::Document *docp;
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docp = new Xapian::Document(iter->cursor().get_document());
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err = NULL;
|
2012-10-23 19:29:24 +02:00
|
|
|
msg = iter->set_msg (mu_msg_new_from_doc((XapianDocument*)docp,
|
|
|
|
&err));
|
2011-08-30 21:01:30 +02:00
|
|
|
if (!msg)
|
|
|
|
MU_HANDLE_G_ERROR(err);
|
|
|
|
|
|
|
|
return msg;
|
|
|
|
|
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN (NULL);
|
2011-05-18 22:33:56 +02:00
|
|
|
}
|
|
|
|
|
2011-06-02 17:13:17 +02:00
|
|
|
gboolean
|
|
|
|
mu_msg_iter_reset (MuMsgIter *iter)
|
|
|
|
{
|
2011-08-30 21:01:30 +02:00
|
|
|
g_return_val_if_fail (iter, FALSE);
|
|
|
|
|
|
|
|
iter->set_msg (NULL);
|
2011-06-02 17:13:17 +02:00
|
|
|
|
2011-08-30 21:01:30 +02:00
|
|
|
try {
|
|
|
|
iter->set_cursor(iter->matches().begin());
|
2011-06-02 17:13:17 +02:00
|
|
|
|
2011-08-30 21:01:30 +02:00
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN (FALSE);
|
|
|
|
|
|
|
|
return TRUE;
|
2011-06-02 17:13:17 +02:00
|
|
|
}
|
|
|
|
|
2010-08-25 20:40:07 +02:00
|
|
|
gboolean
|
|
|
|
mu_msg_iter_next (MuMsgIter *iter)
|
|
|
|
{
|
2011-08-30 21:01:30 +02:00
|
|
|
g_return_val_if_fail (iter, FALSE);
|
|
|
|
|
|
|
|
iter->set_msg (NULL);
|
2010-08-25 20:40:07 +02:00
|
|
|
|
2011-08-30 21:01:30 +02:00
|
|
|
if (mu_msg_iter_is_done(iter))
|
|
|
|
return FALSE;
|
2010-08-25 20:40:07 +02:00
|
|
|
|
2011-08-30 21:01:30 +02:00
|
|
|
try {
|
|
|
|
iter->cursor_next();
|
2012-12-16 13:17:58 +01:00
|
|
|
|
|
|
|
if (iter->cursor() == iter->matches().end())
|
|
|
|
return FALSE;
|
2012-12-22 20:12:11 +01:00
|
|
|
|
2012-12-24 11:06:09 +01:00
|
|
|
if ((iter->skip_unreadable() && !is_msg_file_readable (iter)) ||
|
|
|
|
(iter->skip_dups() && iter->looks_like_dup ()))
|
|
|
|
return mu_msg_iter_next (iter); /* skip! */
|
2012-12-22 20:12:11 +01:00
|
|
|
|
|
|
|
return TRUE;
|
2011-08-30 21:01:30 +02:00
|
|
|
|
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN(FALSE);
|
|
|
|
}
|
2011-08-03 22:06:51 +02:00
|
|
|
|
|
|
|
|
2010-08-25 20:40:07 +02:00
|
|
|
gboolean
|
2010-09-08 23:09:00 +02:00
|
|
|
mu_msg_iter_is_done (MuMsgIter *iter)
|
2010-08-25 20:40:07 +02:00
|
|
|
{
|
2011-06-02 16:36:15 +02:00
|
|
|
g_return_val_if_fail (iter, TRUE);
|
|
|
|
|
|
|
|
try {
|
2011-08-30 21:01:30 +02:00
|
|
|
return iter->cursor() == iter->matches().end() ? TRUE : FALSE;
|
2011-06-02 16:36:15 +02:00
|
|
|
|
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN (TRUE);
|
2010-08-25 20:40:07 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* hmmm.... is it impossible to get a 0 docid, or just very improbable? */
|
2012-12-28 13:48:00 +01:00
|
|
|
unsigned
|
2010-08-25 20:40:07 +02:00
|
|
|
mu_msg_iter_get_docid (MuMsgIter *iter)
|
|
|
|
{
|
2012-12-24 13:59:48 +01:00
|
|
|
g_return_val_if_fail (iter, (unsigned int)-1);
|
2010-12-18 09:44:27 +01:00
|
|
|
g_return_val_if_fail (!mu_msg_iter_is_done(iter),
|
2011-08-30 21:01:30 +02:00
|
|
|
(unsigned int)-1);
|
2010-08-25 20:40:07 +02:00
|
|
|
try {
|
2013-04-09 20:20:25 +02:00
|
|
|
return iter->docid();
|
2010-08-25 20:40:07 +02:00
|
|
|
|
2012-12-24 13:59:48 +01:00
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN ((unsigned int)-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
2015-03-05 23:12:34 +01:00
|
|
|
char*
|
2012-12-24 13:59:48 +01:00
|
|
|
mu_msg_iter_get_msgid (MuMsgIter *iter)
|
|
|
|
{
|
|
|
|
g_return_val_if_fail (iter, NULL);
|
|
|
|
g_return_val_if_fail (!mu_msg_iter_is_done(iter), NULL);
|
|
|
|
|
|
|
|
try {
|
2015-07-02 22:14:29 +02:00
|
|
|
return g_strdup (iter->msgid().c_str());
|
2012-12-25 16:32:43 +01:00
|
|
|
|
2012-12-24 13:59:48 +01:00
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
char**
|
|
|
|
mu_msg_iter_get_refs (MuMsgIter *iter)
|
|
|
|
{
|
|
|
|
g_return_val_if_fail (iter, NULL);
|
|
|
|
g_return_val_if_fail (!mu_msg_iter_is_done(iter), NULL);
|
|
|
|
|
|
|
|
try {
|
|
|
|
std::string refs (
|
|
|
|
iter->cursor().get_document().get_value(MU_MSG_FIELD_ID_REFS));
|
|
|
|
if (refs.empty())
|
|
|
|
return NULL;
|
|
|
|
return g_strsplit (refs.c_str(),",", -1);
|
|
|
|
|
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN (NULL);
|
2010-08-25 20:40:07 +02:00
|
|
|
}
|
|
|
|
|
2015-03-05 23:12:34 +01:00
|
|
|
char*
|
2012-12-25 16:32:43 +01:00
|
|
|
mu_msg_iter_get_thread_id (MuMsgIter *iter)
|
|
|
|
{
|
|
|
|
g_return_val_if_fail (iter, NULL);
|
|
|
|
g_return_val_if_fail (!mu_msg_iter_is_done(iter), NULL);
|
|
|
|
|
|
|
|
try {
|
|
|
|
const std::string thread_id (
|
|
|
|
iter->cursor().get_document().get_value(MU_MSG_FIELD_ID_THREAD_ID).c_str());
|
2015-03-05 23:12:34 +01:00
|
|
|
|
|
|
|
return thread_id.empty() ? NULL : g_strdup (thread_id.c_str());
|
2012-12-25 16:32:43 +01:00
|
|
|
|
|
|
|
|
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2011-06-23 23:21:54 +02:00
|
|
|
const MuMsgIterThreadInfo*
|
|
|
|
mu_msg_iter_get_thread_info (MuMsgIter *iter)
|
2011-06-18 17:47:46 +02:00
|
|
|
{
|
|
|
|
g_return_val_if_fail (!mu_msg_iter_is_done(iter), NULL);
|
2013-03-16 17:25:19 +01:00
|
|
|
|
|
|
|
/* maybe we don't have thread info */
|
|
|
|
if (!iter->thread_hash())
|
|
|
|
return NULL;
|
2011-06-18 17:47:46 +02:00
|
|
|
|
|
|
|
try {
|
2011-06-23 23:21:54 +02:00
|
|
|
const MuMsgIterThreadInfo *ti;
|
2011-06-18 17:47:46 +02:00
|
|
|
unsigned int docid;
|
2011-08-30 21:01:30 +02:00
|
|
|
|
2011-06-23 23:21:54 +02:00
|
|
|
docid = mu_msg_iter_get_docid (iter);
|
|
|
|
ti = (const MuMsgIterThreadInfo*)g_hash_table_lookup
|
2011-08-30 21:01:30 +02:00
|
|
|
(iter->thread_hash(), GUINT_TO_POINTER(docid));
|
2011-06-23 23:21:54 +02:00
|
|
|
|
|
|
|
if (!ti)
|
2012-12-28 13:48:00 +01:00
|
|
|
g_warning ("no ti for %u\n", docid);
|
2011-08-30 21:01:30 +02:00
|
|
|
|
2011-06-23 23:21:54 +02:00
|
|
|
return ti;
|
2011-08-30 21:01:30 +02:00
|
|
|
|
2011-06-18 17:47:46 +02:00
|
|
|
} MU_XAPIAN_CATCH_BLOCK_RETURN (NULL);
|
|
|
|
}
|