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 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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 *    software without specific prior written permission.
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 * 4. This software, with or without modification, must only be used with a
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#ifndef _APP_BLE_USER_MEM_H
#define _APP_BLE_USER_MEM_H


 /**@file
 *
 * @defgroup app_ble_user_mem Functions for managing memory for user memory request in the application device.
 * @{
 * @ingroup  ser_app_s130_codecs
 *
 * @brief    Application auxiliary functions for synchronizing user memory with the one stored in the connectivity device.
 */

#include "ble.h"
#include "ser_config.h"
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

/**@brief Connection - user memory mapping structure.
 *
 * @note  This structure is used to map user memory to connection instances and store it in a static table.
 */
//lint -esym(452,ser_ble_user_mem_t)
typedef struct
{
  uint16_t               conn_handle;    /**< Connection handle. */
  uint8_t                conn_active;    /**< Indication that user memory for this connection is used by the SoftDevice. 0: memory used; 1: memory not used. */
  ble_user_mem_block_t   mem_block;      /**< User memory block structure, see @ref ble_user_mem_block_t. */
} ser_ble_user_mem_t;

/**@brief Allocates instance in m_user_mem_table[] for storage.
 *
 * @param[in]     conn_handle         conn_handle
 * @param[out]    p_index             Pointer to the index of the allocated instance.
 *
 * @retval NRF_SUCCESS                Context allocated.
 * @retval NRF_ERROR_NO_MEM           No free instance available.
 */
uint32_t app_ble_user_mem_context_create(uint16_t conn_handle, uint32_t *p_index);

/**@brief Release instance identified by a connection handle.
 *
 * @param[in]     conn_handle         conn_handle
 *
 * @retval NRF_SUCCESS                Context released.
 * @retval NRF_ERROR_NOT_FOUND        Instance with conn_handle not found.
 */
uint32_t app_ble_user_mem_context_destroy(uint16_t conn_handle);

/**@brief Finds index of the instance identified by a connection handle in m_user_mem_table[].
 *
 * @param[in]     conn_handle         conn_handle
 *
 * @param[out]    p_index             Pointer to the index of the entry in the context table corresponding to the given conn_handle.
 *
 * @retval NRF_SUCCESS                Context found.
 * @retval NRF_ERROR_NOT_FOUND        Instance with conn_handle not found.
 */
uint32_t app_ble_user_mem_context_find(uint16_t conn_handle, uint32_t *p_index);
/** @} */


#ifdef __cplusplus
}
#endif

#endif //_APP_BLE_USER_MEM_H
