mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
108 lines
2.6 KiB
C++
108 lines
2.6 KiB
C++
/** Path restart hook.
|
|
*
|
|
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
|
|
* @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC
|
|
* @license GNU General Public License (version 3)
|
|
*
|
|
* VILLASnode
|
|
*
|
|
* 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
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*********************************************************************************/
|
|
|
|
/** @addtogroup hooks Hook functions
|
|
* @{
|
|
*/
|
|
|
|
#include <cinttypes>
|
|
|
|
#include <villas/hook.hpp>
|
|
#include <villas/node.h>
|
|
#include <villas/sample.h>
|
|
|
|
namespace villas {
|
|
namespace node {
|
|
|
|
class RestartHook : public Hook {
|
|
|
|
protected:
|
|
sample *prev;
|
|
|
|
public:
|
|
using Hook::Hook;
|
|
|
|
virtual void start()
|
|
{
|
|
assert(state == State::PREPARED);
|
|
|
|
prev = nullptr;
|
|
|
|
state = State::STARTED;
|
|
}
|
|
|
|
virtual void stop()
|
|
{
|
|
assert(state == State::STARTED);
|
|
|
|
if (prev)
|
|
sample_decref(prev);
|
|
|
|
state = State::STOPPED;
|
|
}
|
|
|
|
virtual Hook::Reason process(sample *smp)
|
|
{
|
|
assert(state == State::STARTED);
|
|
|
|
if (prev) {
|
|
/* A wrap around of the sequence no should not be treated as a simulation restart */
|
|
if (smp->sequence == 0 && prev->sequence != 0 && prev->sequence < UINT64_MAX - 16) {
|
|
logger->warn("Simulation from node {} restarted (previous->sequence={}, current->sequence={})",
|
|
node_name(node), prev->sequence, smp->sequence);
|
|
|
|
smp->flags |= (int) SampleFlags::IS_FIRST;
|
|
|
|
/* Restart hooks */
|
|
for (size_t i = 0; i < vlist_length(&node->in.hooks); i++) {
|
|
Hook *k = (Hook *) vlist_at(&node->in.hooks, i);
|
|
|
|
k->restart();
|
|
}
|
|
|
|
for (size_t i = 0; i < vlist_length(&node->out.hooks); i++) {
|
|
Hook *k = (Hook *) vlist_at(&node->out.hooks, i);
|
|
|
|
k->restart();
|
|
}
|
|
}
|
|
}
|
|
|
|
sample_incref(smp);
|
|
if (prev)
|
|
sample_decref(prev);
|
|
|
|
prev = smp;
|
|
|
|
return Reason::OK;
|
|
}
|
|
};
|
|
|
|
/* Register hook */
|
|
static char n[] = "restart";
|
|
static char d[] = "Call restart hooks for current node";
|
|
static HookPlugin<RestartHook, n, d, (int) Hook::Flags::BUILTIN | (int) Hook::Flags::NODE_READ, 1> p;
|
|
|
|
} /* namespace node */
|
|
} /* namespace villas */
|
|
|
|
/** @} */
|