Struct InputDeviceStatus 

pub struct InputDeviceStatus {
    pub node: Node,
    pub file_nodes: Mutex<Vec<Node>>,
    pub total_fidl_events_received_count: UintProperty,
    pub total_fidl_events_ignored_count: UintProperty,
    pub total_fidl_events_unexpected_count: UintProperty,
    pub total_fidl_events_converted_count: UintProperty,
    pub total_uapi_events_generated_count: UintProperty,
    pub last_generated_uapi_event_timestamp_ns: IntProperty,
}

An InputDeviceStatus is tied to an [InputDeviceBinding] and provides properties detailing its Inspect status. We expect all (non-timestamp) properties’ counts to equal the sum of that property from all files opened on that device. So for example, if a device had 3 separate input files opened, we would expect it’s total_fidl_events_received_count to equal the sum of fidl_events_received_count from all 3 files and so forth.

Fields

node: Node

A node that contains the state below.

file_nodes: Mutex<Vec<Node>>

Hold onto inspect nodes for files opened on this device, so that when these files are closed, their inspect data is maintained.

total_fidl_events_received_count: UintProperty

The number of FIDL events received by this device from Fuchsia input system.

We expect: total_fidl_events_received_count = total_fidl_events_ignored_count + total_fidl_events_unexpected_count + total_fidl_events_converted_count otherwise starnix ignored events unexpectedly.

total_fidl_events_unexpected_count should be 0, if not it hints issues from upstream of ui stack.

total_fidl_events_ignored_count: UintProperty

The number of FIDL events ignored by this device when attempting conversion to this module’s representation of a TouchEvent.

total_fidl_events_unexpected_count: UintProperty

The unexpected number of FIDL events reached to this module should be filtered out earlier in the UI stack. It maybe unexpected format or unexpected order.

total_fidl_events_converted_count: UintProperty

The number of FIDL events converted by this device to this module’s representation of TouchEvent.

total_uapi_events_generated_count: UintProperty

The number of uapi::input_events generated by this device from TouchEvents.

last_generated_uapi_event_timestamp_ns: IntProperty

The event time of the last generated uapi::input_event by one of this device’s InputFiles.

Implementations

impl InputDeviceStatus

pub fn count_total_received_events(&self, count: u64)

pub fn count_total_ignored_events(&self, count: u64)

pub fn count_total_unexpected_events(&self, count: u64)

pub fn count_total_converted_events(&self, count: u64)

pub fn count_total_generated_events(&self, count: u64, event_time_ns: i64)