BlockingIOException

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

Interface Synopsis

namespace HH\Lib\OS;

final class BlockingIOException extends ErrnoException {...}

Public Methods

• ::_getValidErrnos(): keyset<Errno>
• ->__construct(Errno $code, string $message)

Public Methods (HH\Lib\OS\ErrnoException)

• ->getCode(): Errno
  Deprecated for clarity, and potential future ambiguity
• ->getErrno(): Errno