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VILLASnode/lib/hooks/shift_seq.cpp
Steffen Vogel 02a2aa4f94 Apply clang-format changes
Signed-off-by: Steffen Vogel <steffen.vogel@opal-rt.com>
2023-09-08 11:37:42 +02:00

54 lines
1.1 KiB
C++

/* Shift sequence number of samples.
*
* Author: Steffen Vogel <post@steffenvogel.de>
* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
* SPDX-License-Identifier: Apache-2.0
*/
#include <villas/hook.hpp>
#include <villas/sample.hpp>
namespace villas {
namespace node {
class ShiftSequenceHook : public Hook {
protected:
int offset;
public:
using Hook::Hook;
virtual void parse(json_t *json) {
json_error_t err;
int ret;
assert(state != State::STARTED);
Hook::parse(json);
ret = json_unpack_ex(json, &err, 0, "{ s: i }", "offset", &offset);
if (ret)
throw ConfigError(json, err, "node-config-hook-shift_seq");
state = State::PARSED;
}
virtual Hook::Reason process(struct Sample *smp) {
assert(state == State::STARTED);
smp->sequence += offset;
return Reason::OK;
}
};
// Register hook
static char n[] = "shift_seq";
static char d[] = "Shift sequence number of samples";
static HookPlugin<ShiftSequenceHook, n, d,
(int)Hook::Flags::NODE_READ | (int)Hook::Flags::PATH>
p;
} // namespace node
} // namespace villas