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VILLASnode/lib/hooks/fix.cpp

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/** Drop hook.
*
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
* @copyright 2014-2019, 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 <inttypes.h>
#include <villas/hook.hpp>
#include <villas/node.h>
#include <villas/sample.h>
#include <villas/timing.h>
namespace villas {
namespace node {
class FixHook : public Hook {
public:
using Hook::Hook;
virtual int process(sample *smp)
{
assert(state == STATE_STARTED);
timespec now = time_now();
if (!(smp->flags & SAMPLE_HAS_SEQUENCE) && node) {
smp->sequence = node->sequence++;
smp->flags |= SAMPLE_HAS_SEQUENCE;
}
if (!(smp->flags & SAMPLE_HAS_TS_RECEIVED)) {
smp->ts.received = now;
smp->flags |= SAMPLE_HAS_TS_RECEIVED;
}
if (!(smp->flags & SAMPLE_HAS_TS_ORIGIN)) {
smp->ts.origin = smp->ts.received;
smp->flags |= SAMPLE_HAS_TS_ORIGIN;
}
return HOOK_OK;
}
};
/* Register hook */
static HookPlugin<FixHook> p(
"fix",
"Fix received data by adding missing fields",
HOOK_BUILTIN | HOOK_NODE_READ,
1
);
} /* namespace node */
} /* namespace villas */
/** @} */