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https://git.rwth-aachen.de/acs/public/villas/node/
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53 lines
No EOL
1.4 KiB
C
53 lines
No EOL
1.4 KiB
C
/** Fix timestamp 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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int fix_ts_read(struct hook *h, struct sample *smps[], size_t *cnt)
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{
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struct timespec now;
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now = time_now();
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for (int i = 0; i < *cnt; i++) {
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/* Check for missing receive timestamp
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* Usually node_type::read() should update the receive timestamp.
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* An example would be to use hardware timestamp capabilities of
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* modern NICs.
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*/
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if ((smps[i]->ts.received.tv_sec == 0 && smps[i]->ts.received.tv_nsec == 0) ||
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(smps[i]->ts.received.tv_sec == -1 && smps[i]->ts.received.tv_nsec == -1))
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smps[i]->ts.received = now;
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/* Check for missing origin timestamp */
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if ((smps[i]->ts.origin.tv_sec == 0 && smps[i]->ts.origin.tv_nsec == 0) ||
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(smps[i]->ts.origin.tv_sec == -1 && smps[i]->ts.origin.tv_nsec == -1))
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smps[i]->ts.origin = now;
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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 = "fix_ts",
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.description = "Update timestamps of sample if not set",
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.type = PLUGIN_TYPE_HOOK,
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.hook = {
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.priority = 0,
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.builtin = true,
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.read = fix_ts_read,
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}
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};
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REGISTER_PLUGIN(&p)
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/** @} */ |