ErrnoException
public
final
class
ErrnoException
extends Exception
java.lang.Object | |||
↳ | java.lang.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
Fields | |
---|---|
public
final
int |
errno
The errno value, for comparison with the |
Public constructors | |
---|---|
ErrnoException(String functionName, int errno)
Constructs an instance with the given function name and errno value. |
|
ErrnoException(String functionName, int errno, Throwable cause)
Constructs an instance with the given function name, errno value, and cause. |
Public methods | |
---|---|
String
|
getMessage()
Converts the stashed function name and errno value to a human-readable string. |
IOException
|
rethrowAsIOException()
Throws an |
SocketException
|
rethrowAsSocketException()
Throws a |
Inherited methods | |
---|---|
Fields
errno
public final int errno
The errno value, for comparison with the E
constants in OsConstants
.
Public constructors
ErrnoException
public ErrnoException (String functionName, int errno)
Constructs an instance with the given function name and errno value.
Parameters | |
---|---|
functionName |
String |
errno |
int |
ErrnoException
public ErrnoException (String functionName, int errno, Throwable cause)
Constructs an instance with the given function name, errno value, and cause.
Parameters | |
---|---|
functionName |
String |
errno |
int |
cause |
Throwable |
Public methods
getMessage
public String getMessage ()
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.
Returns | |
---|---|
String |
the detail message string of this Throwable instance
(which may be null ). |
rethrowAsIOException
public IOException rethrowAsIOException ()
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.
Returns | |
---|---|
IOException |
This value cannot be null . |
Throws | |
---|---|
IOException |
rethrowAsSocketException
public SocketException rethrowAsSocketException ()
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.
Returns | |
---|---|
SocketException |
This value cannot be null . |
Throws | |
---|---|
SocketException |