mirror of
https://github.com/transmission/transmission
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712ee263de
This commit also changes tr_recentHistory from being a general-purpose tool to being a little more hardcoded for the only purpose it's used, in tr_peerMgr. If its files (history.[ch]) don't find any other "customers" in libtransmission, eventually it should be demoted to being a private helper class inside of peer-mgr.c and have the history.[ch] files removed from the build.
51 lines
1.3 KiB
C
51 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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h->slices[h->newest].n += n;
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else {
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if( ++h->newest == TR_RECENT_HISTORY_PERIOD_SEC ) 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 ) i = TR_RECENT_HISTORY_PERIOD_SEC - 1; /* circular history */
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if( i == h->newest ) 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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