ErrnoException

Kotlin |Java

class ErrnoException : Exception

kotlin.Any
↳	kotlin.Throwable
	↳	java.lang.Exception
		↳	android.system.ErrnoException

A checked exception thrown when Os methods fail. This exception contains the native errno value, for comparison against the constants in OsConstants, should sophisticated callers need to adjust their behavior based on the exact failure.

Summary

Public constructors
`ErrnoException(functionName: String!, errno: Int)` Constructs an instance with the given function name and errno value.
`ErrnoException(functionName: String!, errno: Int, cause: Throwable!)` Constructs an instance with the given function name, errno value, and cause.

Public methods
IOException	`rethrowAsIOException()` Throws an `IOException` with a message based on `getMessage()` and with this instance as the cause.
SocketException	`rethrowAsSocketException()` Throws a `SocketException` with a message based on `getMessage()` and with this instance as the cause.

Properties
Int	`errno` The errno value, for comparison with the `E` constants in `OsConstants`.
String?	`message` Converts the stashed function name and errno value to a human-readable string.

Public constructors

ErrnoException

Added in API level 21

ErrnoException(
    functionName: String!, 
    errno: Int)

Constructs an instance with the given function name and errno value.

ErrnoException

Added in API level 21

ErrnoException(
    functionName: String!, 
    errno: Int, 
    cause: Throwable!)

Constructs an instance with the given function name, errno value, and cause.

Public methods

rethrowAsIOException

Added in API level 30

fun rethrowAsIOException(): IOException

Throws an IOException with a message based on getMessage() and with this instance as the cause.

This method always terminates by throwing the exception. Callers can write throw e.rethrowAsIOException() to make that clear to the compiler.

Return
`IOException`	This value cannot be `null`.

rethrowAsSocketException

Added in API level 30

fun rethrowAsSocketException(): SocketException

Throws a SocketException with a message based on getMessage() and with this instance as the cause.

This method always terminates by throwing the exception. Callers can write throw e.rethrowAsIOException() to make that clear to the compiler.

Return
`SocketException`	This value cannot be `null`.

Properties

errno

Added in API level 21

val errno: Int

The errno value, for comparison with the E constants in OsConstants.

message

Added in API level 21

val message: String?

Converts the stashed function name and errno value to a human-readable string. We do this here rather than in the constructor so that callers only pay for this if they need it.

Return
`String?`	the detail message string of this `Throwable` instance (which may be `null`).