OSStatus bt_smartbridge_att_cache_disable( void )
{
uint32_t a;
linked_list_node_t* node = NULL;
bt_smartbridge_att_cache_manager_t* manager = att_cache_manager;
if ( att_cache_manager == NULL )
{
return MICO_BT_SUCCESS;
}
/* Set status at the beginning to prevent cached attributes being used even when deinitialisation failed */
att_cache_manager = NULL;
while ( linked_list_remove_node_from_front( &manager->free_list, &node ) == MICO_BT_SUCCESS )
{
bt_smartbridge_att_cache_t* cache = (bt_smartbridge_att_cache_t*)node->data;
mico_bt_smart_attribute_delete_list( &cache->attribute_list );
}
linked_list_deinit( &manager->free_list );
while ( linked_list_remove_node_from_front( &manager->used_list, &node ) == MICO_BT_SUCCESS )
{
bt_smartbridge_att_cache_t* cache = (bt_smartbridge_att_cache_t*)node->data;
mico_bt_smart_attribute_delete_list( &cache->attribute_list );
}
linked_list_deinit( &manager->used_list );
mico_rtos_deinit_mutex( &manager->mutex );
/* Deinitialise mutexes for protecting access to cached attributes */
for ( a = 0; a < manager->count; a++ )
{
mico_rtos_deinit_mutex( &manager->pool[a].mutex );
}
if( manager->att_cache_services_count != 0 )
{
free( manager->att_cache_services );
}
memset( manager, 0, CALCULATE_ATT_CACHE_MANAGER_SIZE( manager->count ) );
free( manager );
return MICO_BT_SUCCESS;
}
wiced_result_t bt_smartbridge_att_cache_enable( uint32_t cache_count )
{
uint32_t a;
wiced_result_t result;
bt_smartbridge_att_cache_manager_t* manager;
if ( att_cache_manager != NULL )
{
return WICED_BT_SUCCESS;
}
manager = (bt_smartbridge_att_cache_manager_t*)malloc_named( "att_cache", CALCULATE_ATT_CACHE_MANAGER_SIZE( cache_count ) );
if ( manager == NULL )
{
return WICED_BT_OUT_OF_HEAP_SPACE;
}
memset( manager, 0, CALCULATE_ATT_CACHE_MANAGER_SIZE( cache_count ) );
att_cache_manager = manager;
manager->count = cache_count;
result = bt_linked_list_init( &manager->free_list );
if ( result != WICED_BT_SUCCESS )
{
WPRINT_LIB_INFO( ( "Error creating linked list\n" ) );
goto error;
}
result = bt_linked_list_init( &manager->used_list );
if ( result != WICED_BT_SUCCESS )
{
WPRINT_LIB_INFO( ( "Error creating linked list\n" ) );
goto error;
}
result = wiced_rtos_init_mutex( &manager->mutex );
if ( result != WICED_SUCCESS )
{
WPRINT_LIB_INFO( ( "Error creating mutex\n" ) );
goto error;
}
/* Initialise mutexes for protecting access to cached attributes */
for ( a = 0; a < manager->count; a++ )
{
result = wiced_rtos_init_mutex( &manager->pool[a].mutex );
if ( result != WICED_BT_SUCCESS )
{
goto error;
}
/* Point node data to cached attribute instance */
manager->pool[a].node.data = (void*)&manager->pool[a];
/* Insert cached attribute instance into free list */
result = bt_linked_list_insert_at_rear( &manager->free_list, &manager->pool[a].node );
if ( result != WICED_BT_SUCCESS )
{
goto error;
}
}
return WICED_BT_SUCCESS;
error:
bt_smartbridge_att_cache_disable();
return result;
}
OSStatus bt_smartbridge_att_cache_enable( uint32_t cache_count, mico_bt_uuid_t cache_services[], uint32_t service_count )
{
uint32_t a;
OSStatus result;
bt_smartbridge_att_cache_manager_t* manager;
mico_bt_uuid_t* services = NULL;
if ( att_cache_manager != NULL )
{
return MICO_BT_SUCCESS;
}
manager = (bt_smartbridge_att_cache_manager_t*)malloc_named( "att_cache", CALCULATE_ATT_CACHE_MANAGER_SIZE( cache_count ) );
if ( manager == NULL )
{
return MICO_BT_OUT_OF_HEAP_SPACE;
}
if( service_count != 0 )
{
services = (mico_bt_uuid_t *)malloc_named( "cache_services", service_count * sizeof(mico_bt_uuid_t) );
if ( services == NULL )
{
return MICO_BT_OUT_OF_HEAP_SPACE;
}
}
memset( manager, 0, CALCULATE_ATT_CACHE_MANAGER_SIZE( cache_count ) );
att_cache_manager = manager;
manager->count = cache_count;
manager->att_cache_services_count = service_count;
if( service_count != 0 )
{
manager->att_cache_services = services;
memcpy( manager->att_cache_services, cache_services, service_count * sizeof(mico_bt_uuid_t) );
}
result = linked_list_init( &manager->free_list );
if ( result != MICO_BT_SUCCESS )
{
bt_smartbridge_log( "Error creating linked list\n" );
goto error;
}
result = linked_list_init( &manager->used_list );
if ( result != MICO_BT_SUCCESS )
{
bt_smartbridge_log( "Error creating linked list\n" );
goto error;
}
result = mico_rtos_init_mutex( &manager->mutex );
if ( result != MICO_BT_SUCCESS )
{
bt_smartbridge_log( "Error creating mutex\n" );
goto error;
}
/* Initialise mutexes for protecting access to cached attributes */
for ( a = 0; a < manager->count; a++ )
{
result = mico_rtos_init_mutex( &manager->pool[a].mutex );
if ( result != MICO_BT_SUCCESS )
{
goto error;
}
/* Point node data to cached attribute instance */
manager->pool[a].node.data = (void*)&manager->pool[a];
/* Insert cached attribute instance into free list */
result = linked_list_insert_node_at_rear( &manager->free_list, &manager->pool[a].node );
if ( result != MICO_BT_SUCCESS )
{
goto error;
}
}
return MICO_BT_SUCCESS;
error:
bt_smartbridge_att_cache_disable();
return result;
}
