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att_server: extract att_server_handle_response_pending

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This commit is contained in:
Matthias Ringwald 2024-04-17 14:38:10 +02:00
parent 73970ae57b
commit c5867c46b4
1 changed files with 35 additions and 27 deletions
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62
src/ble/att_server.c
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@ -556,6 +556,40 @@ static void att_signed_write_handle_cmac_result(uint8_t hash[8]){
}
#endif
#ifdef ENABLE_ATT_DELAYED_RESPONSE
static void att_server_handle_response_pending(att_server_t *att_server, const att_connection_t *att_connection,
const uint8_t *eatt_buffer,
uint16_t att_response_size) {
// free reserved buffer
if (eatt_buffer == NULL){
l2cap_release_packet_buffer();
}
// update state
att_server->state = ATT_SERVER_RESPONSE_PENDING;
// callback with handle ATT_READ_RESPONSE_PENDING for reads
if (att_response_size == ATT_READ_RESPONSE_PENDING){
// notify services that returned response pending
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, &service_handlers);
while (btstack_linked_list_iterator_has_next(&it)) {
att_service_handler_t *handler = (att_service_handler_t *) btstack_linked_list_iterator_next(&it);
if ((handler->flags & ATT_SERVICE_FLAGS_DELAYED_RESPONSE) != 0){
handler->flags &= ~ATT_SERVICE_FLAGS_DELAYED_RESPONSE;
handler->read_callback(att_connection->con_handle, ATT_READ_RESPONSE_PENDING, 0, NULL, 0);
}
}
// notify main read callback if it returned response pending
if ((att_server_flags & ATT_SERVICE_FLAGS_DELAYED_RESPONSE) != 0){
// flag was set by read callback
btstack_assert(att_server_client_read_callback != NULL);
(*att_server_client_read_callback)(att_connection->con_handle, ATT_READ_RESPONSE_PENDING, 0, NULL, 0);
}
}
}
#endif
// pre: att_server->state == ATT_SERVER_REQUEST_RECEIVED_AND_VALIDATED
// pre: can send now
// uses l2cap outgoing buffer if no eatt_buffer provided
@ -586,33 +620,7 @@ att_server_process_validated_request(att_server_t *att_server, att_connection_t
#ifdef ENABLE_ATT_DELAYED_RESPONSE
if ((att_response_size == ATT_READ_RESPONSE_PENDING) || (att_response_size == ATT_INTERNAL_WRITE_RESPONSE_PENDING)){
// free reserved buffer
if (eatt_buffer == NULL){
l2cap_release_packet_buffer();
}
// update state
att_server->state = ATT_SERVER_RESPONSE_PENDING;
// callback with handle ATT_READ_RESPONSE_PENDING for reads
if (att_response_size == ATT_READ_RESPONSE_PENDING){
// notify services that returned response pending
btstack_linked_list_iterator_t it;
btstack_linked_list_iterator_init(&it, &service_handlers);
while (btstack_linked_list_iterator_has_next(&it)) {
att_service_handler_t *handler = (att_service_handler_t *) btstack_linked_list_iterator_next(&it);
if ((handler->flags & ATT_SERVICE_FLAGS_DELAYED_RESPONSE) != 0){
handler->flags &= ~ATT_SERVICE_FLAGS_DELAYED_RESPONSE;
handler->read_callback(att_connection->con_handle, ATT_READ_RESPONSE_PENDING, 0, NULL, 0);
}
}
// notify main read callback if it returned response pending
if ((att_server_flags & ATT_SERVICE_FLAGS_DELAYED_RESPONSE) != 0){
// flag was set by read callback
btstack_assert(att_server_client_read_callback != NULL);
(*att_server_client_read_callback)(att_connection->con_handle, ATT_READ_RESPONSE_PENDING, 0, NULL, 0);
}
}
att_server_handle_response_pending(att_server, att_connection, eatt_buffer, att_response_size);
return 0;
}
#endif