From patchwork Wed Nov 11 04:28:05 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Hatle X-Patchwork-Id: 3099 Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.2562.1794371289079468271 for ; Tue, 10 Nov 2026 20:28:09 -0800 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: kernel.crashing.org, ip: 63.228.1.57, mailfrom: mark.hatle@kernel.crashing.org) Received: from kernel.crashing.net (70-99-78-136.nuveramail.net [70.99.78.136] (may be forged)) by gate.crashing.org (8.18.1/8.18.1/Debian-2) with ESMTP id 6AB4S8mE2429215 for ; Tue, 10 Nov 2026 22:28:08 -0600 From: Mark Hatle To: yocto-patches@lists.yoctoproject.org Subject: [pseudo][PATCH 0/2] RFC: Fix/Add a fast path (async) IPC for ops Date: Tue, 10 Nov 2026 22:28:05 -0600 Message-Id: <1794371287-31540-1-git-send-email-mark.hatle@kernel.crashing.org> X-Mailer: git-send-email 1.8.3.1 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by lin-tor-korg-lkml-alma10-1 with HTTPS for ; Wed, 11 Nov 2026 04:28:17 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/yocto-patches/message/5296 MIME-Version: 1.0 In the distant past a 'FASTOP' was implemented, but never actually worked properly. It was observed that a true fast op could be implemented using an async calling mechanism, however this is implemented differently from the original work. The new work splits IPC channel into two parts. Then the async calls are handled as they can be, or forced before the next sync call. This ensures that all database operations are kept in sync. Note, this work is on a separate branch as it needs a lot more review before I would feel safe integrating it. It's also not required to fix any bugs, but simply should help with performance. See the async-ipc branch of pseudo repository. Mark Hatle (2): Send client requests over one shared datagram socket Replace FASTOP with requests that don't wait for a reply README.security | 4 +- doc/overview | 6 +- doc/program_flow | 11 ++ doc/pseudo_ipc | 73 ++++++++++++-- enums/msg_type.in | 2 +- enums/op.in | 50 +++++----- ports/common/guts/_Exit.c | 16 +++ ports/common/guts/_exit.c | 16 +++ ports/common/guts/execv.c | 4 + ports/common/guts/execve.c | 4 + ports/common/guts/execveat.c | 4 + ports/common/guts/execvp.c | 4 + ports/common/guts/execvpe.c | 4 + ports/common/guts/fexecve.c | 4 + ports/common/pseudo_wrappers.c | 34 +++++++ ports/common/wrapfuncs.in | 2 + pseudo.1 | 23 ++++- pseudo.c | 2 +- pseudo.h | 1 + pseudo_client.c | 222 +++++++++++++++++++++++++++++++---------- pseudo_client.h | 2 + pseudo_ipc.c | 42 ++++++++ pseudo_ipc.h | 8 ++ pseudo_server.c | 186 +++++++++++++++++++++++++++++----- pseudo_util.c | 1 + pseudo_wrappers.c | 43 ++++++++ test/test-async-abort.c | 44 ++++++++ test/test-async-abort.sh | 40 ++++++++ test/test-async-order.c | 188 ++++++++++++++++++++++++++++++++++ test/test-async-order.sh | 23 +++++ 30 files changed, 946 insertions(+), 117 deletions(-) create mode 100644 ports/common/guts/_Exit.c create mode 100644 ports/common/guts/_exit.c create mode 100644 test/test-async-abort.c create mode 100755 test/test-async-abort.sh create mode 100644 test/test-async-order.c create mode 100755 test/test-async-order.sh