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57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/* -*-mode: c; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-*/
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/*
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** Copyright (C) 2012-2013 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
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**
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** This program is free software; you can redistribute it and/or modify it
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** under the terms of the GNU General Public License as published by the
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** Free Software Foundation; either version 3, or (at your option) any
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** 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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#ifndef __MU_THREADER_H__
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#define __MU_THREADER_H__
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#include <glib.h>
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#include <mu-msg-iter.h>
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G_BEGIN_DECLS
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/**
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* takes an iter and the total number of matches, and from this
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* generates a hash-table with information about the thread structure
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* of these matches.
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*
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* the algorithm to find this structure is based on JWZ's
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* message-threading algorithm, as descrbed in:
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* http://www.jwz.org/doc/threading.html
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*
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* the returned hashtable maps the Xapian docid of iter (msg) to a ptr
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* to a MuMsgIterThreadInfo structure (see mu-msg-iter.h)
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*
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* @param iter an iter; note this function will mu_msgi_iter_reset this iterator
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* @param matches the number of matches in the set *
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* @param sortfield the field to sort results by, or
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* MU_MSG_FIELD_ID_NONE if no sorting should be performed
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* @param revert if TRUE, if revert the sorting order
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*
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* @return a hashtable; free with g_hash_table_destroy when done with it
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*/
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GHashTable *mu_threader_calculate (MuMsgIter *iter, size_t matches,
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MuMsgFieldId sortfield, gboolean revert);
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G_END_DECLS
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#endif /*__MU_THREADER_H__*/
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