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/*
* Ouroboros - Copyright (C) 2016
*
* Flows
*
* Dimitri Staessens <dimitri.staessens@intec.ugent.be>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "flow.h"
#include <malloc.h>
#define OUROBOROS_PREFIX "ipcpd/flow"
#include <ouroboros/logs.h>
flow_t * flow_create(port_id_t port_id)
{
flow_t * flow = malloc(sizeof *flow);
flow->port_id = port_id;
flow->flags = FLOW_O_DEFAULT;
flow->state = FLOW_INIT;
#ifdef FLOW_MT_SAFE
pthread_mutex_init(&flow->lock, NULL);
#endif
return flow;
}
void flow_destroy(flow_t * flow)
{
free(flow);
}
int flow_set_opts(flow_t * flow, uint16_t opts)
{
if (flow == NULL) {
LOG_ERR("Non-existing flow.");
return -1;
}
#ifdef FLOW_MT_SAFE
pthread_mutex_lock(&flow->lock);
#endif
if ((opts & FLOW_O_ACCMODE) == FLOW_O_ACCMODE) {
#ifdef FLOW_MT_SAFE
pthread_mutex_unlock(&flow->lock);
#endif
LOG_WARN("Invalid flow options. Setting default.");
opts = FLOW_O_DEFAULT;
}
flow->flags = opts;
#ifdef FLOW_MT_SAFE
pthread_mutex_unlock(&flow->lock);
#endif
return 0;
}
uint16_t flow_get_opts(const flow_t * flow)
{
if (flow == NULL) {
LOG_ERR("Non-existing flow.");
return FLOW_O_INVALID;
}
return flow->flags;
}
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