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att_server: implement att_server_request_can_send_now_event internally using a btstack_context_callback_registration_t struct

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This commit is contained in:
Matthias Ringwald 2018-05-17 13:36:10 +02:00
parent 04bb12a166
commit 5f141511e0
1 changed files with 7 additions and 11 deletions
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18
src/ble/att_server.c
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@ -92,7 +92,7 @@ static btstack_packet_callback_registration_t sm_event_callback_registration;
static btstack_packet_handler_t att_client_packet_handler = NULL;
static btstack_linked_list_t can_send_now_clients;
static btstack_linked_list_t service_handlers;
static uint8_t att_client_waiting_for_can_send;
static btstack_context_callback_registration_t att_client_waiting_for_can_send_registration;
static att_read_callback_t att_server_client_read_callback;
static att_write_callback_t att_server_client_write_callback;
@ -148,7 +148,8 @@ static void att_emit_mtu_event(hci_con_handle_t con_handle, uint16_t mtu){
(*att_client_packet_handler)(HCI_EVENT_PACKET, 0, &event[0], sizeof(event));
}
static void att_emit_can_send_now_event(void){
static void att_emit_can_send_now_event(void * context){
UNUSED(context);
if (!att_client_packet_handler) return;
uint8_t event[] = { ATT_EVENT_CAN_SEND_NOW, 0};
@ -484,7 +485,7 @@ static void att_server_handle_can_send_now(void){
att_server_t * att_server = &connection->att_server;
if (att_server->state == ATT_SERVER_REQUEST_RECEIVED_AND_VALIDATED){
int sent = att_server_process_validated_request(att_server);
if (sent && (att_client_waiting_for_can_send || !btstack_linked_list_empty(&can_send_now_clients))){
if (sent && !btstack_linked_list_empty(&can_send_now_clients)){
att_dispatch_server_request_can_send_now_event(att_server->connection.con_handle);
return;
}
@ -500,17 +501,12 @@ static void att_server_handle_can_send_now(void){
// request again if needed
if (!att_dispatch_server_can_send_now(con_handle)){
if (!btstack_linked_list_empty(&can_send_now_clients) || att_client_waiting_for_can_send){
if (!btstack_linked_list_empty(&can_send_now_clients)){
att_dispatch_server_request_can_send_now_event(con_handle);
}
return;
}
}
if (att_client_waiting_for_can_send){
att_client_waiting_for_can_send = 0;
att_emit_can_send_now_event();
}
}
static void att_packet_handler(uint8_t packet_type, uint16_t handle, uint8_t *packet, uint16_t size){
@ -855,8 +851,8 @@ int att_server_can_send_packet_now(hci_con_handle_t con_handle){
void att_server_request_can_send_now_event(hci_con_handle_t con_handle){
log_debug("att_server_request_can_send_now_event 0x%04x", con_handle);
att_client_waiting_for_can_send = 1;
att_dispatch_server_request_can_send_now_event(con_handle);
att_client_waiting_for_can_send_registration.callback = &att_emit_can_send_now_event;
att_server_register_can_send_now_callback(&att_client_waiting_for_can_send_registration, con_handle);
}
void att_server_register_can_send_now_callback(btstack_context_callback_registration_t * callback_registration, hci_con_handle_t con_handle){