Struct alsa::Error

pub struct Error(/* private fields */);

ALSA error

Most ALSA functions can return a negative error code. If so, then that error code is wrapped into this Error struct. An Error is also returned in case ALSA returns a string that cannot be translated into Rust’s UTF-8 strings.

Implementations

impl Error

pub fn new(func: &'static str, res: c_int) -> Error

pub fn last(func: &'static str) -> Error

pub fn unsupported(func: &'static str) -> Error

pub fn func(&self) -> &'static str

The function which failed.

pub fn errno(&self) -> i32

Underlying error

Match this against the re-export of nix::Error in this crate, not against a specific version of the nix crate. The nix crate version might be updated with minor updates of this library.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for Error

fn from(_: Error) -> Error

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Error

impl StructuralPartialEq for Error