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use thiserror::Error;
#[derive(Debug, Error)]
pub enum SysctlError {
#[error("no such sysctl: {0}")]
NotFound(String),
#[error("no matching type for value")]
#[cfg(not(target_os = "macos"))]
UnknownType,
#[error("Error extracting value")]
ExtractionError,
#[error("Error parsing value")]
ParseError,
#[error("Support for type not implemented")]
MissingImplementation,
#[error("IO Error: {0}")]
IoError(#[from] std::io::Error),
#[error("Error parsing UTF-8 data: {0}")]
Utf8Error(#[from] std::str::Utf8Error),
#[error("Value is not readable")]
NoReadAccess,
#[error("Value is not writeable")]
NoWriteAccess,
#[error("Not supported by this platform")]
NotSupported,
#[error(
"sysctl returned a short read: read {read} bytes, while a size of {reported} was reported"
)]
ShortRead { read: usize, reported: usize },
#[error("Error reading C String: String was not NUL-terminated.")]
InvalidCStr(#[from] std::ffi::FromBytesWithNulError),
}