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docs(libSceRudp): record firmware cancellation details

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AZLisme committed 2026-10-26 00:25:54 +08:00
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docs/dev/debt/libSceRudp.md
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@@ -12,5 +12,5 @@
- [sceRudpGetMaxSegmentSize](../../../core/libs/prx/libSceRudp/Export.cpp) (libSceRudp) - measured on a PS5 (firmware 13.60) in #3073: before `sceRudpInit` it returns `RUDP_ERROR_NOT_INITIALIZED` and leaves the value untouched, also for a null pointer; after it a null pointer returns `RUDP_ERROR_INVALID_ARGUMENT` and a valid one gets 1410 with result 0. The library keeps no configurable segment size (there is no `sceRudpSetMaxSegmentSize`), so 1410 is always reported.
- [sceRudpGetOption, sceRudpSetOption](../../../core/libs/prx/libSceRudp/Export.cpp) (libSceRudp) - full PS5 option contracts are unverified; defaults and validation follow [Vita3K](https://github.com/AndnixSH/Vita3K-PS-Vita-OS-Fork/blob/c86ac732bc811057e690bed280c5076bdf95385e/vita3k/modules/SceRudp/SceLibRudp.cpp). Options 12 and 13 have unknown meanings; last-error option 14 is not maintained. Their setters store all 32 bits per context and return 0 for valid four-byte buffers, preserving acceptance on `main`; their getters throw. Static inspection of PPSA06888 v01.001.008's bundled Unity transport shows its context-set constructor configuring IDs 2, 3, 5 and 6; runtime usage and other paths remain unverified. The plugin wrappers pass four-byte values. No context can connect, so stored settings cannot affect traffic. Closes when: PS5 option contracts are verified and the remaining behavior is implemented.
- [sceRudpPollCreate, sceRudpPollControl, sceRudpPollWait, sceRudpPollDestroy](../../../core/libs/prx/libSceRudp/Export.cpp) - console hardware behavior and removal of the last entry during an existing wait remain unverified. A [firmware 13.42 report](https://github.com/boykopovar/AnyPS5/pull/10954#issuecomment-6398457761) executes the actual module under emulation with kernel/libc imports stubbed and condition waits scripted, not on console hardware: an empty poll waits for its remaining timeout, including after spurious wakes, and leaves event output untouched. This agrees with the retained wait behavior here and conflicts with the immediate empty return in [Vita3K](https://github.com/AndnixSH/Vita3K-PS-Vita-OS-Fork/blob/c86ac732bc811057e690bed280c5076bdf95385e/vita3k/modules/SceRudp/SceLibRudp.cpp). The argument checks, control operations and 8-byte event layout retain their existing sources; the firmware report has not been independently reproduced here.
- [sceRudpPollCancel and sceRudpPollDestroy](../../../core/libs/prx/libSceRudp/Export.cpp) - cancellation remains incomplete. PollCancel throws through its existing parameterless placeholder; [Orbital b321fcd](https://github.com/AlexAltea/orbital/blob/b321fcdbd700cc02da1cb1ad25412781d5ec73c6/tools/ida/db_types.json) declares `int sceRudpPollCancel(int pollId)`, but its PS5 validation and concurrency contract need verification before implementation. The firmware report above returns `0x80770014` to a cancelled or destroyed waiter, retains an idle cancel for the next wait and waits for an active waiter to leave before Cancel/Destroy returns. Here Destroy erases the poll immediately and wakes a waiter with `0x8077001F`, without draining it. Multiple waiters, repeated/concurrent cancellation, validation precedence, timeout boundaries and End/re-init interactions remain unsettled.
- [sceRudpPollCancel, sceRudpPollDestroy and sceRudpEnd](../../../core/libs/prx/libSceRudp/Export.cpp) - cancellation remains incomplete. PollCancel still throws through its parameterless placeholder; [Orbital b321fcd](https://github.com/AlexAltea/orbital/blob/b321fcdbd700cc02da1cb1ad25412781d5ec73c6/tools/ida/db_types.json) declares `int sceRudpPollCancel(int pollId)`. The [detailed firmware 13.42 report](https://github.com/boykopovar/AnyPS5/pull/10954#issuecomment-6399054346), under the emulated/stubbed imports described above, observes a signed low-32-bit argument and initialization, negative-ID and unknown-ID errors `0x80770001`, `0x80770004` and `0x8077001F`. Two idle cancels coalesce into one per-poll cancellation consumed even by a zero-timeout wait. In the scripted two-waiter Cancel/Destroy cases both waiters return `0x80770014`; those calls drain the waiters before returning, and Destroy then destroys the condition variable. A later wait on that destroyed ID returns `0x8077001F`. End similarly drains its active waiter with `0x80770014`; subsequent Wait/Cancel calls return `0x80770001`. Here Destroy/End return without draining and wake existing waiters with `0x8077001F`/`0x80770001`. Real-kernel wake/timeout races, simultaneous control calls, End/re-init overlap and extreme timeout boundaries remain untested; the report is not a console hardware measurement or an independent reproduction here.
- [sceRudpAccept, sceRudpFlush, sceRudpGetLocalInfo, sceRudpListen and sceRudpSetMaxSegmentSize](../../../core/libs/prx/libSceRudp/Export.cpp) - remain throwing placeholders. Their names and NIDs are present in the [PS5 3.20 export inventory](https://github.com/DNNDHH/PS5-3.20_Libs/blob/b2a77c09cd71c01f34c790cfbe98c751a13262ad/libSceRudp.c); their parameterless declarations solely resolve known imports and do not establish the ABI.