Enum PerfMmapBasedMemoryReaderCreateError 

pub enum PerfMmapBasedMemoryReaderCreateError {
    FileIo {
        path: PathBuf,
        source: Error,
    },
    FileTooShort {
        path: PathBuf,
        expect_length: u64,
        real_length: u64,
    },
}

Available on crate feature perf_memory_reader only.

Error type for PerfMmapBasedMemoryReader, only used in PerfMmapBasedMemoryReader::new.

Variants

FileIo

Failed to open mmapped file

Fields

path: PathBuf

Path of target file

source: Error

Source of error

FileTooShort

The mmapped file is not long enough to match the length recorded in the perf.data.

Fields

path: PathBuf

Path of target file

expect_length: u64

Length recorded in perf.data

real_length: u64

Real length of target file

Trait Implementations

impl Debug for PerfMmapBasedMemoryReaderCreateError

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

Formats the value using the given formatter.

impl Display for PerfMmapBasedMemoryReaderCreateError

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

Formats the value using the given formatter.

impl Error for PerfMmapBasedMemoryReaderCreateError

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.