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Google Summer of Code Ideas (edit)

Revision as of 13:01, 15 January 2024

1,324 bytes added , 15 January

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→‎Project ideas: Add checkpointing of POSIX message queues

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* Expected size: 350 hours

* Mentor: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>

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* Suggested by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>

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=== Checkpointing of POSIX message queues ===

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'''Summary:''' Add support for checkpoint/restore of POSIX message queues

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POSIX message queues are a widely used inter-process communication mechanism. Message queues are implemented as files on a virtual filesystem (mqueue), where a file descriptor (message queue descriptor) is used to perform operations such as sending or receiving messages. To support checkpoint/restore of POSIX message queues, we need a kernel interface (similar to [https://github.com/checkpoint-restore/criu/commit/8ce9e947051e43430eb2ff06b96dddeba467b4fd MSG_PEEK]) that would enable the retrieval of messages from a queue without removing them. This project aims to implement such an interface that allows retrieving all messages and their priorities from a POSIX message queue.

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'''Links:'''

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* https://github.com/checkpoint-restore/criu/issues/2285

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* https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/ipc/mqueue.c

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* https://www.man7.org/tlpi/download/TLPI-52-POSIX_Message_Queues.pdf

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'''Details:'''

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* Skill level: intermediate

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* Language: C

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* Expected size: 350 hours

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* Mentor: Prajwal S N <prajwalnadig21@gmail.com>, Radostin Stoyanov <rstoyanov@fedoraproject.org>, Pavel Tikhomirov <ptikhomirov@virtuozzo.com>

* Suggested by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>

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