CloseableReadHandle

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\IO;

interface CloseableReadHandle implements ReadHandle, CloseableHandle {...}

Public Methods (HH\Lib\IO\ReadHandle)

• ->readAllAsync(?int $max_bytes = NULL, ?int $timeout_ns = NULL): Awaitable<string>
  Read until there is no more data to read
• ->readAllowPartialSuccessAsync(?int $max_bytes = NULL, ?int $timeout_ns = NULL): Awaitable<string>
  Read from the handle, waiting for data if necessary
• ->readFixedSizeAsync(int $size, ?int $timeout_ns = NULL): Awaitable<string>
  Read a fixed amount of data
• ->readImpl(?int $max_bytes = NULL): string
  An immediate, unordered read

Public Methods (HH\Lib\IO\CloseableHandle)

• ->close(): void
  Close the handle
• ->closeWhenDisposed(): \IDisposable
  Close the handle when the returned disposable is disposed