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btstack_tlv: provide interface to set/get single instance

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This commit is contained in:
Matthias Ringwald 2017-10-23 15:28:39 +02:00
parent 8b1d64c6f3
commit 853ebd39af
2 changed files with 66 additions and 0 deletions
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51
src/btstack_tlv.c Normal file
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@ -0,0 +1,51 @@
/*
* Copyright (C) 2017 BlueKitchen GmbH
*
* 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 the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD 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 MATTHIAS
* RINGWALD 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.
*
*/
/*
* btstack_tlv.c
*
* Singleton for BTstack's Tag Value Length Persistent Storage implementation
*/
#include "btstack_tlv.h"
static btstack_tlv_t * btstack_tlv_singleton_impl;
static void * btstack_tlv_singleton_context;
void btstack_tlv_set_instance(btstack_tlv_t * tlv_impl, void * tlv_context){
btstack_tlv_singleton_impl = tlv_impl;
btstack_tlv_singleton_context = tlv_context;
}
void btstack_tlv_get_instance(btstack_tlv_t ** tlv_impl, void ** tlv_context){
*tlv_impl = btstack_tlv_singleton_impl;
*tlv_context = btstack_tlv_singleton_context;
}

15
src/btstack_tlv.h
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@ -76,6 +76,21 @@ typedef struct {
} btstack_tlv_t;
/**
* @brief Make TLV implementation available to BTstack components via Singleton
* @note Usually called by port after BD_ADDR was retrieved from Bluetooth Controller
* @param tlv_impl
* @param tlv_context
*/
void btstack_tlv_set_instance(btstack_tlv_t * tlv_impl, void * tlv_context);
/**
* @brief Get current TLV implementation. Used for bonding information, but can be used by application, too.
* @param tlv_impl
* @param tlv_context
*/
void btstack_tlv_get_instance(btstack_tlv_t ** tlv_impl, void ** tlv_context);
#if defined __cplusplus
}
#endif