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44 lines
1.4 KiB
Scheme
44 lines
1.4 KiB
Scheme
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;;
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;; Copyright (C) 2011 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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;; some guile/scheme functions to get various statistics of my mu
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;; message store.
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;; note, this is a rather inefficient way to calculate the number; for
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;; demonstration purposes only
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(define (mu:stats:count EXPR)
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"Count the total number of messages. If the optional EXPR is
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provided, only count the messages that match it.\n"
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(mu:store:foreach (lambda(msg) #f) EXPR))
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(define (mu:stats:average-size EXPR)
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"Count the total number of messages. If the optional EXPR is
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provided, only count the messages that match it.\n"
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(let* ((sum 0)
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(n (mu:store:foreach
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(lambda(msg) (set! sum (+ sum (mu:msg:size msg)))) EXPR)))
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(if (= n 0) 0 (exact->inexact (/ sum n)))))
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