Enum PidError 

#[non_exhaustive]
pub enum PidError {
    InvalidValue(u32),
    TooLarge(u32),
}

Available on crate feature sys only.

Error type for PID parsing.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidValue(u32)

Invalid PID value (must be positive)

Process IDs must be positive integers (greater than 0). PID 0 is typically reserved for the kernel or scheduler. This variant contains the invalid value.

TooLarge(u32)

PID too large (platform-dependent)

The provided PID exceeds the maximum valid value for the platform. On Linux, the maximum is typically 2^31-1 (4,194,303). On other platforms, it may be u32::MAX. This variant contains the invalid value.

Trait Implementations

impl Clone for PidError

fn clone(&self) -> PidError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PidError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PidError

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PidError

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

Formats the value using the given formatter.

impl Error for PidError

Available on crate feature std only.

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

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

fn description(&self) -> &str

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

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 PartialEq for PidError

fn eq(&self, other: &PidError) -> 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 Serialize for PidError

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for PidError

impl Eq for PidError

impl StructuralPartialEq for PidError