mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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111 lines
No EOL
2.7 KiB
C
111 lines
No EOL
2.7 KiB
C
/** Shift timestamps of samples.
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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/** @addtogroup hooks Hook functions
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* @{
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*/
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#include "hook.h"
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#include "plugin.h"
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#include "timing.h"
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struct shift_ts {
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struct timespec offset;
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enum {
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SHIFT_ORIGIN,
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SHIFT_RECEIVED,
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SHIFT_SENT,
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} mode;
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};
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static int shift_ts_init(struct hook *h)
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{
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struct shift_ts *p = h->_vd;
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p->mode = SHIFT_ORIGIN; /* Default mode */
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return 0;
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}
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static int shift_ts_parse(struct hook *h, config_setting_t *cfg)
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{
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struct shift_ts *p = h->_vd;
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const char *mode;
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if (config_setting_lookup_string(cfg, "mode", &mode)) {
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if (!strcmp(mode, "origin"))
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p->mode = SHIFT_ORIGIN;
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else if (!strcmp(mode, "received"))
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p->mode = SHIFT_RECEIVED;
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else if (!strcmp(mode, "sent"))
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p->mode = SHIFT_SENT;
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else
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cerror(cfg, "Invalid mode parameter '%s' for hook '%s'", mode, plugin_name(h->_vt));
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}
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double offset;
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if (!config_setting_lookup_float(cfg, "offset", &offset))
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cerror(cfg, "Missing setting 'offset' for hook '%s'", plugin_name(h->_vt));
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p->offset = time_from_double(offset);
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return 0;
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}
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static int shift_ts_read(struct hook *h, struct sample *smps[], size_t *cnt)
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{
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struct shift_ts *p = h->_vd;
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for (int i = 0; i < *cnt; i++) {
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struct sample *s = smps[i];
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struct timespec *ts;
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switch (p->mode) {
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case SHIFT_ORIGIN: ts = &s->ts.origin; break;
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case SHIFT_RECEIVED: ts = &s->ts.received; break;
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case SHIFT_SENT: ts = &s->ts.sent; break;
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default: return -1;
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}
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*ts = time_add(ts, &p->offset); break;
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}
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return 0;
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}
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static struct plugin p = {
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.name = "shift_ts",
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.description = "Shift timestamps of samples",
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.type = PLUGIN_TYPE_HOOK,
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.hook = {
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.priority = 99,
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.init = shift_ts_init,
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.parse = shift_ts_parse,
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.read = shift_ts_read,
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.size = sizeof(struct shift_ts)
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}
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};
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REGISTER_PLUGIN(&p)
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/** @} */ |