ThrowExceptionForErrorIf

Throws an exception that best matches errno if retval is -1.

Syntax

[System.CLSCompliant(false)]
public static void ThrowExceptionForErrorIf (int retval, Mono.Unix.Native.Errno errno)

Parameters

retval
A int containing the return value of a method from Mono.Unix.Native.Syscall.
errno
A Mono.Unix.Native.Errno specifying the exception to throw.

Exceptions

Type Reason
ArgumentException errno is Mono.Unix.Native.Errno.EBADF or Mono.Unix.Native.Errno.EINVAL.
ArgumentOutOfRangeException errno is Mono.Unix.Native.Errno.ERANGE.
InvalidOperationException errno is Mono.Unix.Native.Errno.EOPNOTSUPP or Mono.Unix.Native.Errno.EPERM.
InvalidProgramException errno is Mono.Unix.Native.Errno.ENOEXEC.
NullReferenceException errno is Mono.Unix.Native.Errno.EFAULT.
OverflowException errno is Mono.Unix.Native.Errno.EOVERFLOW.
UnauthorizedAccessException errno is Mono.Unix.Native.Errno.EACCES or Mono.Unix.Native.Errno.EISDIR.
System.IO.DirectoryNotFoundException errno is Mono.Unix.Native.Errno.ENOTDIR.
System.IO.FileNotFoundException errno is Mono.Unix.Native.Errno.ENOENT.
System.IO.IOException errno is one of: Mono.Unix.Native.Errno.EIO, Mono.Unix.Native.Errno.ENOSPC, Mono.Unix.Native.Errno.ENOTEMPTY, Mono.Unix.Native.Errno.ENXIO, Mono.Unix.Native.Errno.EROFS, Mono.Unix.Native.Errno.ESPIPE.
System.IO.PathTooLongException errno is Mono.Unix.Native.Errno.ENAMETOOLONG.
Mono.Unix.UnixIOException errno is not any of the above error values.

Type	Reason
ArgumentException	errno is Mono.Unix.Native.Errno.EBADF or Mono.Unix.Native.Errno.EINVAL.
ArgumentOutOfRangeException	errno is Mono.Unix.Native.Errno.ERANGE.
InvalidOperationException	errno is Mono.Unix.Native.Errno.EOPNOTSUPP or Mono.Unix.Native.Errno.EPERM.
InvalidProgramException	errno is Mono.Unix.Native.Errno.ENOEXEC.
NullReferenceException	errno is Mono.Unix.Native.Errno.EFAULT.
OverflowException	errno is Mono.Unix.Native.Errno.EOVERFLOW.
UnauthorizedAccessException	errno is Mono.Unix.Native.Errno.EACCES or Mono.Unix.Native.Errno.EISDIR.
System.IO.DirectoryNotFoundException	errno is Mono.Unix.Native.Errno.ENOTDIR.
System.IO.FileNotFoundException	errno is Mono.Unix.Native.Errno.ENOENT.
System.IO.IOException	errno is one of: Mono.Unix.Native.Errno.EIO, Mono.Unix.Native.Errno.ENOSPC, Mono.Unix.Native.Errno.ENOTEMPTY, Mono.Unix.Native.Errno.ENXIO, Mono.Unix.Native.Errno.EROFS, Mono.Unix.Native.Errno.ESPIPE.
System.IO.PathTooLongException	errno is Mono.Unix.Native.Errno.ENAMETOOLONG.
Mono.Unix.UnixIOException	errno is not any of the above error values.

Remarks

If retval is -1, then this method is equivalent to calling UnixMarshal.ThrowExceptionForError (errno). Otherwise, nothing is done.

If the exception thrown is not a Mono.Unix.UnixIOException, then the exception's Exception.InnerException property will be set to a Mono.Unix.UnixIOException instance wrapping errno, if possible.

Note: ArgumentOutOfRangeException does not have its Exception.InnerException property set, as ArgumentOutOfRangeException does not provide a constructor that sets this property.

Requirements

Namespace: Mono.Unix
Assembly: Mono.Posix (in Mono.Posix.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0