57 lines
2.4 KiB
C
57 lines
2.4 KiB
C
// Copyright 2020 Yutaka Kondo <yutaka.kondo@youtalk.jp>
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
/* This header must be included by all rclcpp headers which declare symbols
|
|
* which are defined in the rclcpp library. When not building the rclcpp
|
|
* library, i.e. when using the headers in other package's code, the contents
|
|
* of this header change the visibility of certain symbols which the rclcpp
|
|
* library cannot have, but the consuming code must have inorder to link.
|
|
*/
|
|
|
|
#ifndef DYNAMIXEL_HARDWARE_INTERFACE__VISIBLITY_CONTROL_H_
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE__VISIBLITY_CONTROL_H_
|
|
|
|
// This logic was borrowed (then namespaced) from the examples on the gcc wiki:
|
|
// https://gcc.gnu.org/wiki/Visibility
|
|
|
|
#if defined _WIN32 || defined __CYGWIN__
|
|
#ifdef __GNUC__
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_EXPORT __attribute__((dllexport))
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_IMPORT __attribute__((dllimport))
|
|
#else
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_EXPORT __declspec(dllexport)
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_IMPORT __declspec(dllimport)
|
|
#endif
|
|
#ifdef DYNAMIXEL_HARDWARE_INTERFACE_BUILDING_DLL
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_PUBLIC DYNAMIXEL_HARDWARE_INTERFACE_EXPORT
|
|
#else
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_PUBLIC DYNAMIXEL_HARDWARE_INTERFACE_IMPORT
|
|
#endif
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_PUBLIC_TYPE DYNAMIXEL_HARDWARE_INTERFACE_PUBLIC
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_LOCAL
|
|
#else
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_EXPORT __attribute__((visibility("default")))
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_IMPORT
|
|
#if __GNUC__ >= 4
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_PUBLIC __attribute__((visibility("default")))
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_LOCAL __attribute__((visibility("hidden")))
|
|
#else
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_PUBLIC
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_LOCAL
|
|
#endif
|
|
#define DYNAMIXEL_HARDWARE_INTERFACE_PUBLIC_TYPE
|
|
#endif
|
|
|
|
#endif // DYNAMIXEL_HARDWARE_INTERFACE__VISIBLITY_CONTROL_H_
|