btnut/btnode/include/cm/con_event_buffer.h File Reference


Detailed Description

buffers conection table change events comming from btstack.

This file provides a mechanism to buffer connection-table-change-events from the btstack. This is needed since the callback call from the btstack should return as soon as possible, running on the high priority btstack thread. Further event handling is done in a seperate thread which calls con_event_listen().

#include <bt/bt_defs.h>

Data Structures

struct  _con_event_info
struct  _event_entry
struct  _event_fifo

Defines

#define MAX_CON_CHANGE_EVENT_ENTRY   10

Typedefs

typedef _con_event_info con_event_info_t
typedef _event_entry event_entry_t
typedef _event_fifo event_fifo_t

Functions

void con_event_buffer_init (struct btstack *bt_stack, HCI_CON_TABLE_CB_REGISTRATION)
 initializes the connection event buffer and registers itself to the btstack.
void con_event_buffer_register_con_table_cb (struct btstack *bt_stack, HCI_CON_TABLE_CB, void *cb_arg)
void con_event_listen (void)
 starts listening to connection table changes. This function adjusts the connection properties and calls the registered callback function.

Variables

con_event_info_t * _con_event_info


Function Documentation

void con_event_buffer_init ( struct btstack bt_stack,
HCI_CON_TABLE_CB_REGISTRATION   
)

initializes the connection event buffer and registers itself to the btstack.

Parameters:
bt_stack pointer to the btstack.

void con_event_buffer_register_con_table_cb ( struct btstack bt_stack,
HCI_CON_TABLE_CB  ,
void *  cb_arg 
)

Registers external function cb, wich will be called on connection table changes. Function cb will run in the context of the thread which called con_event_listen().

void con_event_listen ( void   ) 

starts listening to connection table changes. This function adjusts the connection properties and calls the registered callback function.

Warning:
this function never returns!


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