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LibrePilot/flight/pios/common/pios_notify.c

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/**
******************************************************************************
*
* @file pios_notify.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2014.
* @brief Handles user notifications.
* --
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* 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 3 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.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "pios_notify.h"
static volatile pios_notify_notification currentNotification = NOTIFY_NONE;
static volatile pios_notify_priority currentPriority;
void PIOS_NOTIFY_StartNotification(pios_notify_notification notification, pios_notify_priority priority)
{
if (currentNotification == NOTIFY_NONE || currentPriority < priority) {
currentPriority = priority;
currentNotification = notification;
}
}
pios_notify_notification PIOS_NOTIFY_GetActiveNotification(bool clear)
{
pios_notify_notification ret = currentNotification;
if (clear && ret != NOTIFY_NONE) {
currentNotification = NOTIFY_NONE;
}
return ret;
}