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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-04-28 09:54:11 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-04-28 09:54:11 +0200 |
commit | 13fc6703862862f4263d8d5d085b7a16b87190e1 (patch) | |
tree | 47f3a17cb6f38b1aafe22e1cdef085cd73cd3a1d /src/modules/controllib/block/UOrbPublication.hpp | |
parent | f57439b90e23de260259dec051d3e2ead2d61c8c (diff) | |
download | px4-firmware-13fc6703862862f4263d8d5d085b7a16b87190e1.tar.gz px4-firmware-13fc6703862862f4263d8d5d085b7a16b87190e1.tar.bz2 px4-firmware-13fc6703862862f4263d8d5d085b7a16b87190e1.zip |
Moved last libs, drivers and headers, cleaned up IO build
Diffstat (limited to 'src/modules/controllib/block/UOrbPublication.hpp')
-rw-r--r-- | src/modules/controllib/block/UOrbPublication.hpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/modules/controllib/block/UOrbPublication.hpp b/src/modules/controllib/block/UOrbPublication.hpp new file mode 100644 index 000000000..a36f4429f --- /dev/null +++ b/src/modules/controllib/block/UOrbPublication.hpp @@ -0,0 +1,118 @@ +/**************************************************************************** + * + * 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 UOrbPublication.h + * + */ + +#pragma once + +#include <uORB/uORB.h> +#include "Block.hpp" +#include "List.hpp" + + +namespace control +{ + +class Block; + +/** + * Base publication warapper class, used in list traversal + * of various publications. + */ +class __EXPORT UOrbPublicationBase : public ListNode<control::UOrbPublicationBase *> +{ +public: + + UOrbPublicationBase( + List<UOrbPublicationBase *> * list, + const struct orb_metadata *meta) : + _meta(meta), + _handle() { + if (list != NULL) list->add(this); + } + void update() { + orb_publish(getMeta(), getHandle(), getDataVoidPtr()); + } + virtual void *getDataVoidPtr() = 0; + virtual ~UOrbPublicationBase() { + orb_unsubscribe(getHandle()); + } + const struct orb_metadata *getMeta() { return _meta; } + int getHandle() { return _handle; } +protected: + void setHandle(orb_advert_t handle) { _handle = handle; } + const struct orb_metadata *_meta; + orb_advert_t _handle; +}; + +/** + * UOrb Publication wrapper class + */ +template<class T> +class UOrbPublication : + public T, // this must be first! + public UOrbPublicationBase +{ +public: + /** + * Constructor + * + * @param list A list interface for adding to list during construction + * @param meta The uORB metadata (usually from the ORB_ID() macro) + * for the topic. + */ + UOrbPublication( + List<UOrbPublicationBase *> * list, + const struct orb_metadata *meta) : + T(), // initialize data structure to zero + UOrbPublicationBase(list, meta) { + // It is important that we call T() + // before we publish the data, so we + // call this here instead of the base class + setHandle(orb_advertise(getMeta(), getDataVoidPtr())); + } + virtual ~UOrbPublication() {} + /* + * XXX + * This function gets the T struct, assuming + * the struct is the first base class, this + * should use dynamic cast, but doesn't + * seem to be available + */ + void *getDataVoidPtr() { return (void *)(T *)(this); } +}; + +} // namespace control |