DTPCD(1)

📦 version 3.2.1, in ubuntu jammy

👑 DTPCD — the DTPC executables girlie 💅

okay so bestie, welcome to dtpcd(1), part of the DTPC executables crew. this is the page for dtpcd, the DTPC daemon task that catches and processes DTPC ADUs, bundled up and cute. let's get into it 🎀

✨ NAME ✨

dtpcd — the DTPC daemon task for receiving and processing DTPC ADUs in bundles 🦋

🌸 SYNOPSIS 🌸

dtpcd

that's it. that's the whole thing. no flags, no args, she just goes. 💅

💖 DESCRIPTION 💖

so dtpcd is a background "daemon" task, and her whole job — her entire main character arc — is managing the reception and processing of DTPC protocol data units. she's out here receiving the payloads of bundles destined for the "ipn"-scheme endpoint whose node number is the number of the local node, and whose service number is the DTPC_RECV_SVC_NBR (that's 129 as of the time of this writing, no cap, iykyk ✨).

now, DTPC protocol data units come in two flavours, and the way they're giving is very different:

  • ADUs — application data units, i.e. aggregations of application data items. real ones. the actual content. 🍓
  • Acknowledgments — and honestly? every single acknowledgment is interpreted as authorization to release the buffer space occupied by the node's local copy of the acknowledged ADU. so like, an ack is literally permission to let that buffer go. iconic. 🕊️

and what happens to each ADU, you ask? she gets parsed into her constituent application data items, those items get delivered to the applications that are waiting on them, and when it's required, a DTPC end-to-end acknowledgment PDU gets returned to the DTPC PDU sender. the full circle moment. 🔥

💀 EXIT STATUS 💀

  • 0 — dtpcd terminated normally, for reasons noted in the ion.log file. but listen — if this termination was not commanded, bestie, go investigate and solve the problem identified in the log file, then use dtpcadmin to restart dtpcd. don't just leave her like that. 😭
  • 1 — dtpcd terminated abnormally, for reasons noted in the ion.log file. investigate and solve the problem identified in the log file, then use dtpcadmin to restart dtpcd. same energy, worse vibe. 🙈

🎀 FILES 🎀

no configuration files are needed. she's low maintenance. she's self-sufficient. she's that girl. 💅

🌈 ENVIRONMENT 🌈

no environment variables apply. nothing to set, nothing to export. breathe. 🧚

🔍 DIAGNOSTICS 🔍

the following diagnostics may be issued to the ion.log log file — so if you see these, that's what's up:

  • DTPC can't open own 'send' endpoint. bundle protocol agent has not been started. see ion(3).
  • dtpcd can't attach to DTPC. dtpcadmin has not yet initialized DTPC protocol operations.

🐛 BUGS 🐛

report bugs to <ion-bugs@korgano.eecs.ohiou.edu>. be nice about it, she's trying her best. 🫶

👀 SEE ALSO 👀

dtpcadmin(1), ion(3)

⭐ and that's the whole page, bestie! this one shipped as perl v5.24.1, dated 2016-07-07, and it's giving very much "reliable daemon from 2016 who has never once let you down." slay. periodt. 💖✨
📦 where this page comes from