px4-firmware/apps/controllib/block/BlockParam.cpp

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/**
 * @file Blockparam.cpp
 *
 * Controller library code
 */

#include <math.h>
#include <stdio.h>
#include <string.h>

#include "BlockParam.hpp"

namespace control
{

BlockParamBase::BlockParamBase(Block *parent, const char *name, bool parent_prefix) :
	_handle(PARAM_INVALID)
{
	char fullname[blockNameLengthMax];

	if (parent == NULL) {
		strncpy(fullname, name, blockNameLengthMax);

	} else {
		char parentName[blockNameLengthMax];
		parent->getName(parentName, blockNameLengthMax);

		if (!strcmp(name, "")) {
			strncpy(fullname, parentName, blockNameLengthMax);

		} else if (parent_prefix) {
			snprintf(fullname, blockNameLengthMax, "%s_%s", parentName, name);
		} else {
			strncpy(fullname, name, blockNameLengthMax);
		}

		parent->getParams().add(this);
	}

	_handle = param_find(fullname);

	if (_handle == PARAM_INVALID)
		printf("error finding param: %s\n", fullname);
};

} // namespace control