linuxptp/port.h

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/**
* @file port.h
* @note Copyright (C) 2011 Richard Cochran <richardcochran@gmail.com>
*
* 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 02110-1301 USA.
*/
#ifndef HAVE_PORT_H
#define HAVE_PORT_H
/** Opaque type. */
struct port;
/**
* Returns the dataset from a port's best foreign clock record, if any
* has yet been discovered.
*
* @param port A port instance.
* @return A pointer to a dataset, or NULL.
*/
struct dataset *port_best_foreign(struct port *port);
/**
* Returns a port's current state.
* @param port A port instance.
* @return One of the @ref port_state values.
*/
enum port_state port_state(struct port *port);
#endif