tipc_send_group_unicast(9)

💅 tipc_send_group_unicast(9) — a Kernel API Manual moment

okay so bestie, buckle up, because we're diving into tipc_send_group_unicast(9) today and honestly? she's a whole little kingmaker. no cap. this is one of those pages from the Kernel API Manual and it's short, sweet, and does exactly one job: slide a message over to one specific member of a group 💌

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✨ NAME ✨

tipc_send_group_unicast — send message to a member in the group 🫶

like, a member. one. singular. pick your fave and send. iykyk.

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🌸 SYNOPSIS 🌸

int tipc_send_group_unicast (struct socket *sock , struct msghdr *m ,
       int dlen , long timeout );

the whole function signature, character for character, because we respect her 👑

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🎀 ARGUMENTS 🎀

• sock — socket structure. the socket in question, the main character, the vessel.
• m — message to send. this is the actual thing you're yeeting across.
• dlen — total length of message data. total. not partial. the whole length, bestie.
• timeout — timeout to wait for wakeup. i.e. how long you're willing to sit there waiting for the wakeup to happen before you give up 💀

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🦋 DESCRIPTION 🦋

so here's the tea: this function gets called from tipc_sendmsg, and tipc_sendmsg has already done all the sanity checks before she ever shows up to this party. so by the time tipc_send_group_unicast is on the scene, everything's vetted and she can just do her thing ✨ no second-guessing, no re-validating, just vibes and a send.

ngl that's a really nice division of labour and i'm lowkey obsessed with it.

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💖 RETURN 💖

the number of bytes sent on success, or errno 😭 — so either you get a nice little byte count (slay) or you get an error code telling you what went wrong (not slay, but at least informative).

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⭐ SEE ALSO ⭐

okay this list is long and honestly it ate. go read these, they're all in the family 💜

Kernel file ./net/tipc/socket.c and also:

• struct tipc_sock(9)
• tsk_advance_rx_queue(9)
• tsk_rej_rx_queue(9)
• tipc_sk_create(9)
• tipc_release(9)
• __tipc_bind(9)
• tipc_getname(9)
• tipc_poll(9)
• tipc_sendmcast(9)
• tipc_send_group_msg(9)
• tipc_send_group_anycast(9)
• tipc_send_group_bcast(9)
• tipc_send_group_mcast(9)
• tipc_sk_mcast_rcv(9)
• tipc_sk_conn_proto_rcv(9)
• tipc_sendmsg(9)
• tipc_sendstream(9)
• tipc_send_packet(9)
• tipc_sk_set_orig_addr(9)
• tipc_sk_anc_data_recv(9)
• tipc_recvmsg(9)
• tipc_recvstream(9)
• tipc_write_space(9)
• tipc_data_ready(9)
• tipc_sk_filter_connect(9)
• rcvbuf_limit(9)
• tipc_sk_filter_rcv(9)
• tipc_sk_backlog_rcv(9)
• tipc_sk_enqueue(9)
• tipc_sk_rcv(9)
• tipc_connect(9)
• tipc_listen(9)
• tipc_accept(9)
• tipc_shutdown(9)
• tipc_setsockopt(9)
• tipc_getsockopt(9)
• tipc_socket_init(9)
• tipc_socket_stop(9)
• tipc_sk_filtering(9)
• tipc_sk_overlimit1(9)
• tipc_sk_overlimit2(9)
• tipc_sk_dump(9)

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and that's the whole page, bestie — no skips, no cuts, every single one of those (9)s accounted for 💅

<cute>this has been ./net/tipc, dated October 2026 — mwah, drink some water, and go send a unicast to someone you love 🍓✨</cute>