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/**
* @file telecom.c
* @note Copyright (C) 2017 Richard Cochran <richardcochran@gmail.com>
*
* Derived from code in bmc.c.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA.
*/
#include <string.h>
#include "bmc.h"
#include "ds.h"
int telecom_dscmp(struct dataset *a, struct dataset *b)
{
int diff;
if (a == b)
return 0;
if (a && !b)
return A_BETTER;
if (b && !a)
return B_BETTER;
if (a->quality.clockClass < b->quality.clockClass)
return A_BETTER;
if (a->quality.clockClass > b->quality.clockClass)
return B_BETTER;
if (a->quality.clockAccuracy < b->quality.clockAccuracy)
return A_BETTER;
if (a->quality.clockAccuracy > b->quality.clockAccuracy)
return B_BETTER;
if (a->quality.offsetScaledLogVariance <
b->quality.offsetScaledLogVariance)
return A_BETTER;
if (a->quality.offsetScaledLogVariance >
b->quality.offsetScaledLogVariance)
return B_BETTER;
if (a->priority2 < b->priority2)
return A_BETTER;
if (a->priority2 > b->priority2)
return B_BETTER;
if (a->localPriority < b->localPriority)
return A_BETTER;
if (a->localPriority > b->localPriority)
return B_BETTER;
if (a->quality.clockClass <= 127)
return dscmp2(a, b);
diff = memcmp(&a->identity, &b->identity, sizeof(a->identity));
if (!diff)
return dscmp2(a, b);
return diff < 0 ? A_BETTER : B_BETTER;
}
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