[openssl/openssl] dba140: doc: document thread cancellation and non-local exits

"'Mounir IDRASSI' via openssl-commits" <[email protected]>
Newsgroups gmane.comp.encryption.openssl.cvs
Message-ID <openssl/openssl/push/refs/heads/openssl-3.5/[email protected]>
  Branch: refs/heads/openssl-3.5
  Home:   https://github.com/openssl/openssl
  Commit: dba14047ed3b1b96a139d535e7d4d8b5e4ade24f
      https://github.com/openssl/openssl/commit/dba14047ed3b1b96a139d535e7d4d8b5e4ade24f
  Author: Mounir IDRASSI <[email protected]>
  Date:   2026-08-19 (Wed, 19 Aug 2026)

  Changed paths:
    M doc/man3/OPENSSL_init_crypto.pod
    M doc/man7/openssl-threads.pod

  Log Message:
  -----------
  doc: document thread cancellation and non-local exits

Document that OpenSSL provides no general guarantee that an
in-progress call can be abandoned safely through thread cancellation,
forced termination, or another non-local exit.

Explain indirect cancellation points, the limits of thread-local
cleanup, POSIX cancellation masking, and cooperative cancellation.
Clarify in OPENSSL_init_crypto(3) that automatic thread cleanup does
not unwind an interrupted call.

Assisted-by: Codex:gpt-5.6-sol
Reviewed-by: Tomas Mraz <[email protected]>
Reviewed-by: Andrew Dinh <[email protected]>
Merge-date: Wed Aug 19 10:32:13 2026
Merged-from: https://github.com/openssl/openssl/pull/32139


  Commit: 9b53f8873a96574553f169c58e2f4b6c66070be7
      https://github.com/openssl/openssl/commit/9b53f8873a96574553f169c58e2f4b6c66070be7
  Author: Mounir IDRASSI <[email protected]>
  Date:   2026-08-19 (Wed, 19 Aug 2026)

  Changed paths:
    M doc/man3/SSL_poll.pod
    M doc/man7/openssl-quic-concurrency.pod

  Log Message:
  -----------
  doc: document QUIC thread cancellation consequences

Describe the domain-wide consequences of interrupting QUIC API
processing while synchronisation is held or notification state is
registered.

Clarify that SSL_poll() can leave stale registrations in multiple
notifier-enabled domains, and provide cooperative cancellation and
application-driven event-loop guidance.

Assisted-by: Codex:gpt-5.6-sol
Reviewed-by: Tomas Mraz <[email protected]>
Reviewed-by: Andrew Dinh <[email protected]>
Merge-date: Wed Aug 19 10:32:14 2026
Merged-from: https://github.com/openssl/openssl/pull/32139


Compare: https://github.com/openssl/openssl/compare/15cccf99fb15...9b53f8873a96

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