diff options
Diffstat (limited to 'src/modules/mavlink/mavlink_orb_subscription.cpp')
| -rw-r--r-- | src/modules/mavlink/mavlink_orb_subscription.cpp | 44 |
1 files changed, 39 insertions, 5 deletions
diff --git a/src/modules/mavlink/mavlink_orb_subscription.cpp b/src/modules/mavlink/mavlink_orb_subscription.cpp index 35470a19a..e1208bca9 100644 --- a/src/modules/mavlink/mavlink_orb_subscription.cpp +++ b/src/modules/mavlink/mavlink_orb_subscription.cpp @@ -1,10 +1,42 @@ -/* - * mavlink_orb_subscription.cpp +/**************************************************************************** * - * Created on: 23.02.2014 - * Author: ton - */ + * Copyright (c) 2014 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 mavlink_orb_subscription.cpp + * uORB subscription implementation. + * + * @author Anton Babushkin <anton.babushkin@me.com> + */ #include <unistd.h> #include <stdlib.h> @@ -45,10 +77,12 @@ MavlinkOrbSubscription::update(const hrt_abstime t) _last_check = t; bool updated; orb_check(_fd, &updated); + if (updated) { orb_copy(_topic, _fd, _data); return true; } } + return false; } |