Samuel Williams 11f6d3d68b Flush buffered data in BasicSocket#close_write before shutdown. (#18900) ...

When a socket has buffered output (`sync == false`) and `#close_write` is
called, the write side was shut down via `shutdown(SHUT_WR)` without first
flushing the buffer. This had two bad consequences:

- the buffered bytes were silently dropped (never delivered to the peer);
- a subsequent `#close` tried to flush the still-populated write buffer
  into the now `shutdown(SHUT_WR)` socket and raised `Errno::EPIPE`.

Flush the buffer before shutting down the write side, matching the
write-only branch (which flushes via `rb_io_close`) and the non-socket
`IO#close_write` path. `IO#close_write` for a plain `IO` wrapping a socket
fd is fixed in the same way.

Assisted-By: devx/2c064143-8655-4631-a7cd-6395bb241bdc

2026-09-18 03:36:26 +00:00

..

test_addrinfo.rb

Make Addrinfo objects Ractor shareable

2025-05-20 18:04:37 -07:00

test_ancdata.rb

Dump FreeBSD socket credential data wholely

2026-06-05 22:38:34 +09:00

test_basicsocket.rb

Flush buffered data in BasicSocket#close_write before shutdown. (#18900)

2026-09-18 03:36:26 +00:00

test_nonblock.rb

Increase UDP nonblock test timeout to avoid CI flakes (#16569)

2026-03-26 14:28:32 -07:00

test_socket.rb

Wait for the exceptfds of a connecting socket on Windows

2026-09-12 19:50:19 +09:00

test_sockopt.rb

Use omit instead of skip: test/socket/**/*.rb

2021-12-28 20:29:54 +09:00

test_tcp.rb

Don't hang in ensure when TCPSocket tests fail to connect

2026-09-15 15:06:08 +09:00

test_udp.rb

Use omit instead of skip: test/socket/**/*.rb

2021-12-28 20:29:54 +09:00

test_unix.rb

[Bug #21705] Fix segfaults on Windows

2025-11-23 13:55:15 +09:00