Pair tests that fail only on a CI runner give nothing to go on but the
output diff. The instance sync's and the relay's warnings say where an
instance stalled.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Each instance paced itself against the wall clock, so on a busy machine
the one that got less CPU fell behind, and anything a test times across
instances (a peer leaving, a matching timeout) came out differently with
the load: pair/vanish and pair/matching3 failed on macOS CI.
With --sync-file and --sync-count, instances on one machine share a file
of one slot per instance. CoreTiming ends a slice at every emulated
millisecond, publishes it there, and waits until every other instance
has reached it too, so they're never more than a millisecond apart. It
works for any number of instances. One that stops moving (a debugger
pause, a crash) is waited for 2 s and then left out until it moves
again, and one that blocks the CPU thread in real time on something the
others must do (the relay PTP connect) stands aside meanwhile.
Tools/adhoc_multi.py and adhoc_session.py use it (--no-sync turns it
off). The host's 1 s head start is gone: they wait for the server's
port instead. adhoc_multi writes each instance's output to a file, as a
full pipe would now stop the other instances too.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The pair tests that pass go in tests_good, and each runs twice: through
the built-in server's relay and P2P. pair_known_failures lists the ones
that fail in only one mode. A P2P test that needs a loopback address
the machine lacks (macOS has only 127.0.0.1) is skipped with a warning,
and the run fails at the end with the command that adds it. The macOS
CI runners add 127.0.0.2. Each run gets a random port offset.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
--instance=N sets PPSSPP_ID, so each instance gets its own 127.0.0.N address
and MAC; headless left it at 0, which made its address 127.0.0.0.
--realtime keeps emulated time from running ahead of the wall clock. Only
display flips paced headless, and a test that doesn't draw never flips, so
two instances waiting for each other over the network timed out at once.
--adhoc-server runs the built-in ad hoc server.
Tools/adhoc_multi.py runs a multi-console pspautotest (X_host, X_client,
X_client2, ...) on one instance per role, with the built-in server or, with
--relay, a local aemu_postoffice in relay mode.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
