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

80 lines
2.6 KiB
C++

/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @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