Enum mmap::MapError

pub enum MapError {
    ErrFdNotAvail,
    ErrInvalidFd,
    ErrUnaligned,
    ErrNoMapSupport,
    ErrNoMem,
    ErrZeroLength,
    ErrUnknown(isize),
    ErrUnsupProt,
    ErrUnsupOffset,
    ErrAlreadyExists,
    ErrVirtualAlloc(i32),
    ErrCreateFileMappingW(i32),
    ErrMapViewOfFile(i32),
}

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Possible errors when creating a map.

Variants

ErrFdNotAvail

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The following are POSIX-specific

fd was not open for reading or, if using MapWritable, was not open for writing.

ErrInvalidFd

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fd was not valid

ErrUnaligned

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Either the address given by MapAddr or offset given by MapOffset was not a multiple of MemoryMap::granularity (unaligned to page size).

ErrNoMapSupport

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With MapFd, the fd does not support mapping.

ErrNoMem

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If using MapAddr, the address + min_len was outside of the process's address space. If using MapFd, the target of the fd didn't have enough resources to fulfill the request.

ErrZeroLength

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A zero-length map was requested. This is invalid according to POSIX. Not all platforms obey this, but this wrapper does.

ErrUnknown(isize)

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Unrecognized error. The inner value is the unrecognized errno.

ErrUnsupProt

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The following are Windows-specific

Unsupported combination of protection flags (MapReadable/MapWritable/MapExecutable).

ErrUnsupOffset

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When using MapFd, MapOffset was given (Windows does not support this at all)

ErrAlreadyExists

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When using MapFd, there was already a mapping to the file.

ErrVirtualAlloc(i32)

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Unrecognized error from VirtualAlloc. The inner value is the return value of GetLastError.

ErrCreateFileMappingW(i32)

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Unrecognized error from CreateFileMapping. The inner value is the return value of GetLastError.

ErrMapViewOfFile(i32)

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Unrecognized error from MapViewOfFile. The inner value is the return value of GetLastError.

Trait Implementations

impl Debug for MapError

fn fmt(&self, __arg_0: &mut Formatter) -> Result[−]

Formats the value using the given formatter.

impl Clone for MapError

fn clone(&self) -> MapError[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for MapError

impl Display for MapError

fn fmt(&self, out: &mut Formatter) -> Result[−]

Formats the value using the given formatter.

impl Error for MapError

fn description(&self) -> &str[−]

A short description of the error.

fn cause(&self) -> Option<&Error>[−]

The lower-level cause of this error, if any.