Struct Parameters

pub struct Parameters {

    pub capture: bool,
    pub num_output_devices: u32,
    pub num_input_devices: u32,
    pub backend: StreamSourceBackend,
    pub num_output_streams: u32,
    pub num_input_streams: u32,
    pub playback_path: String,
    pub playback_size: usize,
    pub client_type: CrasClientType,
    pub socket_type: CrasSocketType,
    pub output_device_config: Vec<PCMDeviceParameters>,
    pub input_device_config: Vec<PCMDeviceParameters>,
    pub card_index: usize,
    pub unmap_guest_memory_on_fork: bool,
}

Holds the parameters for a cras sound device

Fields

capture: bool

num_output_devices: u32

num_input_devices: u32

backend: StreamSourceBackend

num_output_streams: u32

num_input_streams: u32

playback_path: String

playback_size: usize

client_type: CrasClientType

socket_type: CrasSocketType

output_device_config: Vec<PCMDeviceParameters>

input_device_config: Vec<PCMDeviceParameters>

card_index: usize

unmap_guest_memory_on_fork: bool

set MADV_DONTFORK on guest memory

Intended for use in combination with protected VMs, where the guest memory can be dangerous to access. Some systems, e.g. Android, have tools that fork processes and examine their memory. This flag effectively hides the guest memory from those tools.

Not compatible with sandboxing.

Implementations

impl Parameters

pub(crate) fn get_total_output_streams(&self) -> u32

pub(crate) fn get_total_input_streams(&self) -> u32

pub(crate) fn get_total_streams(&self) -> u32

pub(crate) fn get_device_params( &self, pcm_info: &virtio_snd_pcm_info, ) -> Result<PCMDeviceParameters, Error>

Trait Implementations

impl Clone for Parameters

fn clone(&self) -> Parameters

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Parameters

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Parameters

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Parameters

where Parameters: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl FromArgValue for Parameters

fn from_arg_value(value: &str) -> Result<Self, String>

Construct the type from a commandline value, returning an error string on failure.

impl Serialize for Parameters

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.