mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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66 lines
No EOL
1.5 KiB
C
66 lines
No EOL
1.5 KiB
C
/** Convert 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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static int hook_convert(struct hook *h, int when, struct hook_info *k)
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{
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struct {
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enum {
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TO_FIXED,
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TO_FLOAT
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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'", h->name);
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if (!strcmp(h->parameter, "fixed"))
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private->mode = TO_FIXED;
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else if (!strcmp(h->parameter, "float"))
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private->mode = TO_FLOAT;
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else
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error("Invalid parameter '%s' for hook 'convert'", h->parameter);
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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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for (int j = 0; j < k->smps[0]->length; j++) {
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switch (private->mode) {
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case TO_FIXED: k->smps[i]->data[j].i = k->smps[i]->data[j].f * 1e3; break;
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case TO_FLOAT: k->smps[i]->data[j].f = k->smps[i]->data[j].i; break;
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}
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}
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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 = "convert",
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.description = "Convert message from / to floating-point / integer",
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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_convert,
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.type = HOOK_STORAGE | HOOK_DESTROY | HOOK_READ
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}
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};
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REGISTER_PLUGIN(&p)
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/** @} */ |