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Diff: source/nordic_sdk/components/ble/peer_manager/peer_id.h
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diff -r 000000000000 -r bc2961fa1ef0 source/nordic_sdk/components/ble/peer_manager/peer_id.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/source/nordic_sdk/components/ble/peer_manager/peer_id.h Wed Apr 06 23:55:04 2016 +0100 @@ -0,0 +1,112 @@ +/* + * Copyright (c) Nordic Semiconductor ASA + * 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 of Nordic Semiconductor ASA nor the names of other + * contributors to this software 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 HOLDER 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. + * + */ + + +#ifndef PEER_ID_H__ +#define PEER_ID_H__ + + +#include "stdint.h" +#include "sdk_errors.h" +#include "ble_gap.h" +#include "peer_manager_types.h" + + +/** + * @defgroup peer_id Peer IDs + * @ingroup peer_manager + * @{ + * @brief An internal module of @ref peer_manager. This module keeps track of which peer IDs are in + * use and which are free. + */ + + +/**@brief Function for initializing the module. + */ +void peer_id_init(void); + + +/**@brief Function for claiming an unused peer ID. + * + * @param peer_id The peer ID to allocate. If this is @ref PM_PEER_ID_INVALID, the first available + * will be allocated. + * + * @return The allocated peer ID. + * @retval PM_PEER_ID_INVALID If no peer ID could be allocated or module is not initialized. + */ +pm_peer_id_t peer_id_allocate(pm_peer_id_t peer_id); + + +/**@brief Function for freeing a peer ID and clearing all data associated with it in persistent + * storage. + * + * @param[in] peer_id Peer ID to free. + */ +void peer_id_free(pm_peer_id_t peer_id); + + +/**@brief Function for finding out whether a peer ID is in use. + * + * @param[in] peer_id The peer ID to inquire about. + * + * @retval true peer_id is in use. + * @retval false peer_id is free, or the module is not initialized. + */ +bool peer_id_is_allocated(pm_peer_id_t peer_id); + + +/**@brief Function for getting the next peer ID in the sequence of all used peer IDs. Can be + * used to loop through all used peer IDs. + * + * @note @ref PM_PEER_ID_INVALID is considered to be before the first and after the last ordinary + * peer ID. + * + * @param[in] prev_peer_id The previous peer ID. + * + * @return The next peer ID. + * @return The first used peer ID if prev_peer_id was @ref PM_PEER_ID_INVALID. + * @retval PM_PEER_ID_INVALID if prev_peer_id was the last ordinary peer ID or the module is + * not initialized. + */ +pm_peer_id_t peer_id_next_id_get(pm_peer_id_t prev_peer_id); + + +/**@brief Function for querying the number of valid peer IDs available. I.E the number of peers + * in persistent storage. + * + * @return The number of valid peer IDs, or 0 if module is not initialized. + */ +uint32_t peer_id_n_ids(void); + +/** @} */ + +#endif /* PEER_ID_H__ */