[milescoviello]

What

Fixes #4174. Carries @screamm's fix branch from that issue (screamm:feat/npwebapi2-push-event-abort, 2d9c2e45), keeping the commit and its authorship as is, as the issue invites. It is cherry-picked onto current main; besides the commit's own code, only its TechnicalDebt edit changed, to follow the move to one file per library (#4411): the stub entry leaves docs/dev/debt/libSceNpWebApi2.md's Unknown function info and the new entry goes under that file's Functional section.

sceNpWebApi2PushEventAbortHandle (NID 1OLgvahaSco) threw NotImplemented; Planet Coaster (PPSA01736) imports it (import evidence from merged #3399). From the issue:

• Push-event handles are now registered per library context on the existing context map and mutex, following shadPS4 np_web_api2_internal.cpp (abortPushEventHandle), np_web_api2_context.cpp and np_web_api2_push_event.cpp at e0a46675: CreateHandle returns LIB_CONTEXT_NOT_FOUND (0x80553404) for an unknown context and registers the handle; AbortHandle returns LIB_CONTEXT_NOT_FOUND / HANDLE_NOT_FOUND (0x8055340D) for an unknown context or handle and otherwise marks the handle aborted (idempotent, 0); CreateFilter on an aborted handle returns ABORTED (0x80553409); DeleteHandle validates the same way and removes the handle; Terminate drops the context's handles. In shadPS4 the only effect of abort is that ABORTED result, so registered callbacks are left alone; handle timeouts are not modelled. The codes are PS4 numbering, unverified on PS5 (TechnicalDebt). Note for reviewers: CreateHandle, DeleteHandle and CreateFilter previously accepted any id and now return these errors; the sibling GetMemoryPoolStats still throws for an unknown context, and the existing SCE_NP_WEBAPI2_ERROR_UNAVAILABLE (0x80553406) is shadPS4's REQUEST_NOT_FOUND, left unchanged.
• guest_np_web_api2 covers two handles (abort one twice, filter creation ABORTED on it and unaffected on the other), the wrong-context, unknown-handle and unknown-context codes, delete then abort/delete again, and abort after Terminate.

Tested

• Linux, added for this carry: Ubuntu 24.04, GCC 13.3 (CI's compiler), Release with CI's configure flags, rebased onto main 1acfa7f. guest_np_web_api2 passes and fails with main's Export.cpp, and all 310 guest_* tests pass.
• Windows: @screamm's run in libSceNpWebApi2: sceNpWebApi2PushEventAbortHandle throws (Planet Coaster); fix branch ready #4174 (Windows 11, WinLibs MinGW-w64 GCC 15.2.0): guest_np_web_api2 3/3 plus the full suite results listed there.
• tools/check_conventions.py --base upstream/main passes.

Checklist

• Based on current main; no other open PR implements the same functions
• One topic per PR; follow-ups go in a new PR
• No comments in code except technical debt
• Unimplemented paths throw (NotImplemented_nid_no_patch); silent stubs are listed in TechnicalDebt
• No notes, investigation .md files or images added to the repository (attach them to this PR)
• New third-party code is a submodule built from source
• Generic behaviour, not specific to one title
• Depends on: none
• Unblocks: none
• AI-assisted: yes

[github-actions]

Progress report (1acfa7f → 2efa438)

📈 System libraries: 86.39% (+0.03%, +1 implemented functions)

✅ 1 implemented

Library	Name
libSceNpWebApi2	sceNpWebApi2PushEventAbortHandle

[xXPBSXx]

Windows test: head 13d9cdd04 merged onto current main 3d8ffeb27 (clean merge, no conflicts). Windows 10, MinGW GCC (WinLibs), Ninja Release, -j4: full build 0 errors; ctest with the filter guest_np_web_api2: guest_np_web_api2 passed (1 test(s), 0 failed); python tools/check_conventions.py --base upstream/main passed. I did not run the new tests against main without the change.

AI-assisted (Claude Code).

[github-actions]

Other open pull requests touch the same code. Merging one will break the other, or both implement the same thing. If this one builds on them, list them in Depends on.

Pull request	Conflicting files (lines on main)	Same exports	Same new files
#4834	core/libs/tests/GuestNpWebApi2.cpp L17 docs/dev/debt/libSceNpWebApi2.md L5-6

[oneandonlydean]

Closing: PPSA01736 imports sceNpWebApi2PushEventAbortHandle but #4174 says the call has not been seen executing, and the commit also changes what CreateHandle, DeleteHandle and CreateFilter return for every title, from PS4 codes. #4188 carries the same commit. Reopen with the log line where a title stops at it on main.