mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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101 lines
No EOL
2.1 KiB
C
101 lines
No EOL
2.1 KiB
C
/** Time shift hook.
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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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*********************************************************************************/
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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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static int hook_shift(struct hook *h, int when, struct hook_info *k)
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{
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struct {
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struct timespec offset;
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enum {
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TS_ORIGIN,
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TS_RECEIVED,
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TS_SENT
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} mode;
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} *private = hook_storage(h, when, sizeof(*private), NULL, NULL);
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switch (when) {
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case HOOK_PARSE:
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if (!h->parameter)
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error("Missing parameter for hook: '%s'", plugin_name(h));
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char *endptr;
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double offset;
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char *off;
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char *cpy = strdup(h->parameter);
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char *tok1 = strtok(cpy, ",");
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char *tok2 = strtok(NULL, ",");
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if (tok2) {
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off = tok2;
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if (!strcmp(tok1, "origin"))
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private->mode = TS_ORIGIN;
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else if (!strcmp(tok1, "received"))
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private->mode = TS_RECEIVED;
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else if (!strcmp(tok1, "sent"))
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private->mode = TS_SENT;
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else
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error("Invalid mode parameter for hook '%s'", plugin_name(h));
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}
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else {
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off = tok1;
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private->mode = TS_ORIGIN;
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}
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offset = strtod(off, &endptr);
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if (endptr == off)
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error("Invalid offset parameter for hook '%s'", plugin_name(h));
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private->offset = time_from_double(offset);
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free(cpy);
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break;
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case HOOK_READ:
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for (int i = 0; i < k->cnt; i++) {
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struct timespec *ts;
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switch (private->mode) {
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case TS_ORIGIN: ts = &k->smps[i]->ts.origin; break;
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case TS_RECEIVED: ts = &k->smps[i]->ts.received; break;
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case TS_SENT: ts = &k->smps[i]->ts.sent; break;
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}
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*ts = time_add(ts, &private->offset);
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}
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return k->cnt;
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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",
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.description = "Shift the origin timestamp 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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.history = 0,
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.cb = hook_shift,
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.type = HOOK_STORAGE | HOOK_READ
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}
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};
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REGISTER_PLUGIN(&p)
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/** @} */ |