[XL] Change in libosmocore[master]: Add osmo_io with initial poll backend

Attention is currently required from: osmith, Hoernchen, neels, fixeria, daniel. pespin has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmocore/+/30934 ) Change subject: Add osmo_io with initial poll backend ...................................................................... Patch Set 8: Code-Review+1 (3 comments) File src/core/osmo_io.c: https://gerrit.osmocom.org/c/libosmocore/+/30934/comment/f3774e3f_863afd46 PS8, Line 169: llist_add_tail(&msghdr->list, &iofd->tx_queue.msg_queue); Could be msgb_enqueue_count(), but it can stay this way too. https://gerrit.osmocom.org/c/libosmocore/+/30934/comment/97d19e82_37b0b785 PS8, Line 206: iofd->tx_queue.current_length--; Could be msgb_dequeue_count(), but can stay this way too. File src/core/osmo_io_poll.c: https://gerrit.osmocom.org/c/libosmocore/+/30934/comment/25c87e73_39e41f78 PS8, Line 85: if (iofd->closed) is this the new -EBADF to handle case where recvmsg_cb closes th iofd? What if iofd is freed by recvmsg_cb(), can that happen? you would be accessing freed memory here. -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/30934 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: I50d73cf550d6ce8154bf827bf47408131cf5b0a0 Gerrit-Change-Number: 30934 Gerrit-PatchSet: 8 Gerrit-Owner: daniel <dwillmann(a)sysmocom.de> Gerrit-Reviewer: Hoernchen <ewild(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: neels <nhofmeyr(a)sysmocom.de> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: osmith <osmith(a)sysmocom.de> Gerrit-Attention: Hoernchen <ewild(a)sysmocom.de> Gerrit-Attention: neels <nhofmeyr(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Attention: daniel <dwillmann(a)sysmocom.de> Gerrit-Comment-Date: Mon, 03 Apr 2023 08:57:20 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: Yes Gerrit-MessageType: comment