mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/** Shift timestamps of samples.
|
|
*
|
|
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
|
|
* @copyright 2017, 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 <string.h>
|
|
|
|
#include <villas/hook.h>
|
|
#include <villas/plugin.h>
|
|
#include <villas/timing.h>
|
|
#include <villas/sample.h>
|
|
|
|
struct shift_ts {
|
|
struct timespec offset;
|
|
enum {
|
|
SHIFT_ORIGIN,
|
|
SHIFT_RECEIVED
|
|
} mode;
|
|
};
|
|
|
|
static int shift_ts_init(struct hook *h)
|
|
{
|
|
struct shift_ts *p = (struct shift_ts *) h->_vd;
|
|
|
|
p->mode = SHIFT_ORIGIN; /* Default mode */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int shift_ts_parse(struct hook *h, json_t *cfg)
|
|
{
|
|
struct shift_ts *p = (struct shift_ts *) h->_vd;
|
|
double offset;
|
|
const char *mode = NULL;
|
|
int ret;
|
|
json_error_t err;
|
|
|
|
ret = json_unpack_ex(cfg, &err, 0, "{ s?: s, s: F }",
|
|
"mode", &mode,
|
|
"offset", &offset
|
|
);
|
|
if (ret)
|
|
jerror(&err, "Failed to parse configuration of hook '%s'", plugin_name(h->_vt));
|
|
|
|
if (mode) {
|
|
if (!strcmp(mode, "origin"))
|
|
p->mode = SHIFT_ORIGIN;
|
|
else if (!strcmp(mode, "received"))
|
|
p->mode = SHIFT_RECEIVED;
|
|
else
|
|
jerror(&err, "Invalid mode parameter '%s' for hook '%s'", mode, plugin_name(h->_vt));
|
|
}
|
|
|
|
p->offset = time_from_double(offset);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int shift_ts_read(struct hook *h, struct sample *smps[], unsigned *cnt)
|
|
{
|
|
struct shift_ts *p = (struct shift_ts *) h->_vd;
|
|
|
|
for (int i = 0; i < *cnt; i++) {
|
|
struct sample *s = smps[i];
|
|
struct timespec *ts;
|
|
|
|
switch (p->mode) {
|
|
case SHIFT_ORIGIN: ts = &s->ts.origin; break;
|
|
case SHIFT_RECEIVED: ts = &s->ts.received; break;
|
|
default: return -1;
|
|
}
|
|
|
|
*ts = time_add(ts, &p->offset); break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct plugin p = {
|
|
.name = "shift_ts",
|
|
.description = "Shift timestamps of samples",
|
|
.type = PLUGIN_TYPE_HOOK,
|
|
.hook = {
|
|
.flags = HOOK_NODE | HOOK_PATH,
|
|
.priority = 99,
|
|
.init = shift_ts_init,
|
|
.parse = shift_ts_parse,
|
|
.read = shift_ts_read,
|
|
.size = sizeof(struct shift_ts)
|
|
}
|
|
};
|
|
|
|
REGISTER_PLUGIN(&p)
|
|
|
|
/** @} */
|