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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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Serval Distributed Numbering Architecture (DNA)
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Copyright (C) 2010 Paul Gardner-Stephen
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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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
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "serval.h"
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double simulatedBER=0;
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/*
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We use this function to simulate a lossy link so that we can easily bench-test the
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retransmission protocols.
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*/
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int dropPacketP(int packet_len)
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{
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int i,b;
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long berThreshold=0x7fffffff*simulatedBER;
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if (!simulatedBER) return 0;
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for(i=0;i<packet_len;i++)
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for(b=0;b<8;b++)
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if (random()<=berThreshold) return 1;
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return 0;
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}
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