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https://github.com/servo/servo.git
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Refactor Bluetooth error handling
This commit is contained in:
zakorgy
zakorgyula
parent
d8991496c6
commit
b4db14471b
7 changed files with 76 additions and 62 deletions
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@ -12,7 +12,7 @@ use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
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use net_traits::bluetooth_scanfilter::{BluetoothScanfilter, BluetoothScanfilterSequence, RequestDeviceoptions};
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use net_traits::bluetooth_thread::{BluetoothCharacteristicMsg, BluetoothCharacteristicsMsg};
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use net_traits::bluetooth_thread::{BluetoothDescriptorMsg, BluetoothDescriptorsMsg};
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use net_traits::bluetooth_thread::{BluetoothDeviceMsg, BluetoothMethodMsg};
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use net_traits::bluetooth_thread::{BluetoothDeviceMsg, BluetoothError, BluetoothMethodMsg};
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use net_traits::bluetooth_thread::{BluetoothResult, BluetoothServiceMsg, BluetoothServicesMsg};
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use rand::{self, Rng};
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use std::borrow::ToOwned;
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@ -25,15 +25,7 @@ use tinyfiledialogs;
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use util::thread::spawn_named;
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const ADAPTER_ERROR: &'static str = "No adapter found";
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const DEVICE_ERROR: &'static str = "No device found";
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const DEVICE_MATCH_ERROR: &'static str = "No device found, that matches the given options";
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const PRIMARY_SERVICE_ERROR: &'static str = "No primary service found";
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const INCLUDED_SERVICE_ERROR: &'static str = "No included service found";
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const CHARACTERISTIC_ERROR: &'static str = "No characteristic found";
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const DESCRIPTOR_ERROR: &'static str = "No descriptor found";
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const VALUE_ERROR: &'static str = "No characteristic or descriptor found with that id";
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const SECURITY_ERROR: &'static str = "The operation is insecure";
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const NETWORK_ERROR: &'static str = "A network error occurred";
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// A transaction not completed within 30 seconds shall time out. Such a transaction shall be considered to have failed.
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// https://www.bluetooth.org/DocMan/handlers/DownloadDoc.ashx?doc_id=286439 (Vol. 3, page 480)
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const MAXIMUM_TRANSACTION_TIME: u8 = 30;
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@ -73,7 +65,7 @@ macro_rules! get_adapter_or_return_error(
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($bl_manager:expr, $sender:expr) => (
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match $bl_manager.get_or_create_adapter() {
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Some(adapter) => adapter,
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None => return drop($sender.send(Err(String::from(ADAPTER_ERROR)))),
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None => return drop($sender.send(Err(BluetoothError::Type(ADAPTER_ERROR.to_string())))),
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}
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);
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);
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@ -453,7 +445,7 @@ impl BluetoothManager {
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if let Some(address) = self.select_device(matched_devices) {
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let device_id = match self.address_to_id.get(&address) {
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Some(id) => id.clone(),
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None => return drop(sender.send(Err(String::from(DEVICE_MATCH_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::NotFound))),
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};
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let mut services = options.get_services_set();
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if let Some(services_set) = self.allowed_services.get(&device_id) {
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@ -471,7 +463,7 @@ impl BluetoothManager {
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return drop(sender.send(message));
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}
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}
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return drop(sender.send(Err(String::from(DEVICE_MATCH_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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fn gatt_server_connect(&mut self, device_id: String, sender: IpcSender<BluetoothResult<bool>>) {
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@ -489,9 +481,9 @@ impl BluetoothManager {
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false => thread::sleep(Duration::from_millis(CONNECTION_TIMEOUT_MS)),
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}
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}
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return drop(sender.send(Err(String::from(NETWORK_ERROR))));
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return drop(sender.send(Err(BluetoothError::Network)));
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},
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None => return drop(sender.send(Err(String::from(DEVICE_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::NotFound))),
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}
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}
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@ -510,9 +502,9 @@ impl BluetoothManager {
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false => return drop(sender.send(Ok(false))),
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}
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}
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return drop(sender.send(Err(String::from(NETWORK_ERROR))));
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return drop(sender.send(Err(BluetoothError::Network)));
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},
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None => return drop(sender.send(Err(String::from(DEVICE_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::NotFound))),
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}
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}
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@ -522,11 +514,11 @@ impl BluetoothManager {
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sender: IpcSender<BluetoothResult<BluetoothServiceMsg>>) {
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let mut adapter = get_adapter_or_return_error!(self, sender);
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if !self.allowed_services.get(&device_id).map_or(false, |s| s.contains(&uuid)) {
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return drop(sender.send(Err(String::from(SECURITY_ERROR))));
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return drop(sender.send(Err(BluetoothError::Security)));
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}
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let services = self.get_gatt_services_by_uuid(&mut adapter, &device_id, &uuid);
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if services.is_empty() {
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return drop(sender.send(Err(String::from(PRIMARY_SERVICE_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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for service in services {
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if service.is_primary().unwrap_or(false) {
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@ -539,7 +531,7 @@ impl BluetoothManager {
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}
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}
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}
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return drop(sender.send(Err(String::from(PRIMARY_SERVICE_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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fn get_primary_services(&mut self,
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@ -550,14 +542,14 @@ impl BluetoothManager {
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let services = match uuid {
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Some(ref id) => {
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if !self.allowed_services.get(&device_id).map_or(false, |s| s.contains(id)) {
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return drop(sender.send(Err(String::from(SECURITY_ERROR))))
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return drop(sender.send(Err(BluetoothError::Security)))
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}
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self.get_gatt_services_by_uuid(&mut adapter, &device_id, id)
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},
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None => self.get_and_cache_gatt_services(&mut adapter, &device_id),
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};
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if services.is_empty() {
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return drop(sender.send(Err(String::from(PRIMARY_SERVICE_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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let mut services_vec = vec!();
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for service in services {
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@ -572,7 +564,7 @@ impl BluetoothManager {
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}
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}
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if services_vec.is_empty() {
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return drop(sender.send(Err(String::from(PRIMARY_SERVICE_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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let _ = sender.send(Ok(services_vec));
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@ -584,11 +576,11 @@ impl BluetoothManager {
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sender: IpcSender<BluetoothResult<BluetoothServiceMsg>>) {
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let mut adapter = match self.get_or_create_adapter() {
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Some(a) => a,
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None => return drop(sender.send(Err(String::from(ADAPTER_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::Type(ADAPTER_ERROR.to_string())))),
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};
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let primary_service = match self.get_gatt_service(&mut adapter, &service_id) {
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Some(s) => s,
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None => return drop(sender.send(Err(String::from(PRIMARY_SERVICE_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::NotFound))),
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};
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let services = primary_service.get_includes().unwrap_or(vec!());
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for service in services {
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@ -602,7 +594,7 @@ impl BluetoothManager {
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}
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}
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}
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return drop(sender.send(Err(String::from(INCLUDED_SERVICE_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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fn get_included_services(&mut self,
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@ -611,11 +603,11 @@ impl BluetoothManager {
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sender: IpcSender<BluetoothResult<BluetoothServicesMsg>>) {
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let mut adapter = match self.get_or_create_adapter() {
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Some(a) => a,
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None => return drop(sender.send(Err(String::from(ADAPTER_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::Type(ADAPTER_ERROR.to_string())))),
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};
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let primary_service = match self.get_gatt_service(&mut adapter, &service_id) {
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Some(s) => s,
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None => return drop(sender.send(Err(String::from(PRIMARY_SERVICE_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::NotFound))),
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};
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let services = primary_service.get_includes().unwrap_or(vec!());
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let mut services_vec = vec!();
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@ -632,7 +624,7 @@ impl BluetoothManager {
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services_vec.retain(|ref s| s.uuid == uuid);
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}
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if services_vec.is_empty() {
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return drop(sender.send(Err(String::from(INCLUDED_SERVICE_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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let _ = sender.send(Ok(services_vec));
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@ -645,7 +637,7 @@ impl BluetoothManager {
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let mut adapter = get_adapter_or_return_error!(self, sender);
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let characteristics = self.get_gatt_characteristics_by_uuid(&mut adapter, &service_id, &uuid);
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if characteristics.is_empty() {
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return drop(sender.send(Err(String::from(CHARACTERISTIC_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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for characteristic in characteristics {
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if let Ok(uuid) = characteristic.get_uuid() {
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@ -666,7 +658,7 @@ impl BluetoothManager {
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return drop(sender.send(message));
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}
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}
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return drop(sender.send(Err(String::from(CHARACTERISTIC_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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fn get_characteristics(&mut self,
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@ -679,7 +671,7 @@ impl BluetoothManager {
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None => self.get_and_cache_gatt_characteristics(&mut adapter, &service_id),
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};
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if characteristics.is_empty() {
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return drop(sender.send(Err(String::from(CHARACTERISTIC_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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let mut characteristics_vec = vec!();
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for characteristic in characteristics {
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@ -702,7 +694,7 @@ impl BluetoothManager {
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}
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}
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if characteristics_vec.is_empty() {
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return drop(sender.send(Err(String::from(CHARACTERISTIC_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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let _ = sender.send(Ok(characteristics_vec));
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@ -715,7 +707,7 @@ impl BluetoothManager {
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let mut adapter = get_adapter_or_return_error!(self, sender);
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let descriptors = self.get_gatt_descriptors_by_uuid(&mut adapter, &characteristic_id, &uuid);
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if descriptors.is_empty() {
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return drop(sender.send(Err(String::from(DESCRIPTOR_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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for descriptor in descriptors {
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if let Ok(uuid) = descriptor.get_uuid() {
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@ -725,7 +717,7 @@ impl BluetoothManager {
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})));
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}
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}
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return drop(sender.send(Err(String::from(DESCRIPTOR_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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fn get_descriptors(&mut self,
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@ -738,7 +730,7 @@ impl BluetoothManager {
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None => self.get_and_cache_gatt_descriptors(&mut adapter, &characteristic_id),
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};
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if descriptors.is_empty() {
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return drop(sender.send(Err(String::from(DESCRIPTOR_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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let mut descriptors_vec = vec!();
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for descriptor in descriptors {
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@ -750,7 +742,7 @@ impl BluetoothManager {
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}
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}
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if descriptors_vec.is_empty() {
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return drop(sender.send(Err(String::from(DESCRIPTOR_ERROR))));
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return drop(sender.send(Err(BluetoothError::NotFound)));
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}
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let _ = sender.send(Ok(descriptors_vec));
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}
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@ -763,7 +755,7 @@ impl BluetoothManager {
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value = self.get_gatt_descriptor(&mut adapter, &id)
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.map(|d| d.read_value().unwrap_or(vec![]));
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}
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let _ = sender.send(value.ok_or(String::from(VALUE_ERROR)));
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let _ = sender.send(value.ok_or(BluetoothError::NotSupported));
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}
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fn write_value(&mut self, id: String, value: Vec<u8>, sender: IpcSender<BluetoothResult<bool>>) {
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@ -777,9 +769,9 @@ impl BluetoothManager {
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let message = match result {
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Some(v) => match v {
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Ok(_) => Ok(true),
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Err(e) => return drop(sender.send(Err(e.to_string()))),
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Err(_) => return drop(sender.send(Err(BluetoothError::NotSupported))),
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},
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None => return drop(sender.send(Err(String::from(VALUE_ERROR)))),
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None => return drop(sender.send(Err(BluetoothError::NotSupported))),
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};
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let _ = sender.send(message);
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}
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