mirror of
https://github.com/transmission/transmission
synced 2024-12-27 01:57:52 +00:00
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* This file Copyright (C) Mnemosyne LLC
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*
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* This file is licensed by the GPL version 2. Works owned by the
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* Transmission project are granted a special exemption to clause 2 (b)
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* so that the bulk of its code can remain under the MIT license.
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* This exemption does not extend to derived works not owned by
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* the Transmission project.
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*
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* $Id$
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*/
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#include <assert.h>
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#include <string.h> /* memset () */
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#include "transmission.h"
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#include "history.h"
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#include "utils.h"
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void
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tr_historyAdd (tr_recentHistory * h, time_t now, unsigned int n)
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{
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if (h->slices[h->newest].date == now)
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{
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h->slices[h->newest].n += n;
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}
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else
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{
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if (++h->newest == TR_RECENT_HISTORY_PERIOD_SEC)
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h->newest = 0;
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h->slices[h->newest].date = now;
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h->slices[h->newest].n = n;
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}
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}
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unsigned int
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tr_historyGet (const tr_recentHistory * h, time_t now, unsigned int sec)
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{
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unsigned int n = 0;
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const time_t cutoff = (now?now:tr_time ()) - sec;
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int i = h->newest;
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for (;;)
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{
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if (h->slices[i].date <= cutoff)
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break;
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n += h->slices[i].n;
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if (--i == -1)
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i = TR_RECENT_HISTORY_PERIOD_SEC - 1; /* circular history */
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if (i == h->newest)
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break; /* we've come all the way around */
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}
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return n;
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}
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