# Enum std::io::ErrorKind 1.0.0 [−] [src]

    pub enum ErrorKind {
        NotFound,
        PermissionDenied,
        ConnectionRefused,
        ConnectionReset,
        ConnectionAborted,
        NotConnected,
        AddrInUse,
        AddrNotAvailable,
        BrokenPipe,
        AlreadyExists,
        WouldBlock,
        InvalidInput,
        InvalidData,
        TimedOut,
        WriteZero,
        Interrupted,
        Other,
        UnexpectedEof,
        // some variants omitted
    }

1.0.0

A list specifying general categories of I/O error.

This list is intended to grow over time and it is not recommended to exhaustively match against it.

## Variants

`NotFound`

An entity was not found, often a file.

`PermissionDenied`

The operation lacked the necessary privileges to complete.

`ConnectionRefused`

The connection was refused by the remote server.

`ConnectionReset`

The connection was reset by the remote server.

`ConnectionAborted`

The connection was aborted (terminated) by the remote server.

`NotConnected`

The network operation failed because it was not connected yet.

`AddrInUse`

A socket address could not be bound because the address is already in use elsewhere.

`AddrNotAvailable`

A nonexistent interface was requested or the requested address was not local.

`BrokenPipe`

The operation failed because a pipe was closed.

`AlreadyExists`

An entity already exists, often a file.

`WouldBlock`

The operation needs to block to complete, but the blocking operation was requested to not occur.

`InvalidInput`

A parameter was incorrect.

`InvalidData`

Data not valid for the operation were encountered.

Unlike `InvalidInput`, this typically means that the operation parameters were valid, however the error was caused by malformed input data.

For example, a function that reads a file into a string will error with `InvalidData` if the file's contents are not valid UTF-8.

1.2.0
`TimedOut`

The I/O operation's timeout expired, causing it to be canceled.

`WriteZero`

An error returned when an operation could not be completed because a call to `write` returned `Ok(0)`.

This typically means that an operation could only succeed if it wrote a particular number of bytes but only a smaller number of bytes could be written.

`Interrupted`

This operation was interrupted.

Interrupted operations can typically be retried.

`Other`

Any I/O error not part of this list.

`UnexpectedEof`

An error returned when an operation could not be completed because an "end of file" was reached prematurely.

This typically means that an operation could only succeed if it read a particular number of bytes but only a smaller number of bytes could be read.

1.6.0

## Trait Implementations

### `impl Debug for ErrorKind`
[src]

#### `fn fmt(&self, __arg_0: &mut Formatter) -> Result`

Formats the value using the given formatter.

### `impl Clone for ErrorKind`
[src]

#### `fn clone(&self) -> ErrorKind`

Returns a copy of the value. Read more

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

Performs copy-assignment from `source`. Read more

### `impl Eq for ErrorKind`
[src]

### `impl PartialEq for ErrorKind`
[src]

#### `fn eq(&self, __arg_0: &ErrorKind) -> bool`

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

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

This method tests for `!=`.

### `impl Copy for ErrorKind`
[src]

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