Files
NX2navi/tests/handle_census_check.py
chrg6 26b7cfd658 Put the process's OS handle count on the sizes line and add a handle census by kind behind NX2NAVI_HANDLE_CENSUS.
A session of 2026-11-13 grew from 683 to 1095 OS handles in 11 minutes, rising at every area load and never falling,
while the guest's own handles stayed at 116-122 and the threads flat; the VMA block count fell back while the handle
count did not. The log could not show it: the 600-frame "mem: sizes" line had only the guest's handles, and nothing
told which kind of handle grows.

kernel.c kern_sizes now adds "process handles" (plat_handle_count, one system call every 600 frames under trace=perf)
beside the guest's "handles". platform.h gets plat_handle_census: on Windows the system's extended handle table
filtered by our process id, with the type names from NtQueryObject's ObjectTypesInformation; on Linux the
/proc/self/fd links grouped by kind. It never opens, duplicates or names a handle (a name query can block on a pipe).
With NX2NAVI_HANDLE_CENSUS=1 (default 0, read at start) and trace=perf, perf.c starts one long-lived thread that the
600-frame report wakes; when the count grew by 16 or more since its last census it logs "mem: handles frame N: T in
all (+D since the last census): Event a (+x), ...". The census reads a few MiB of the system's table in 2-5 ms, off
the drawing threads; one thread for the run keeps a new thread's own handle out of what it counts. New cfg rows:
HANDLE_CENSUS in known[], sections[] (diagnostics) and metas[] ("0", "0|1", restart), and an nx2navi.ini.example
entry.

New tests/handle_census_check.py builds the platform layer alone: 20 events and 5 sections show as Event +20 and
Section +5, the total stays within 2 of GetProcessHandleCount, the figures return once they are closed, and kinds
past the room given go into the last entry; docs/building.md describes it. Not reproduced before the change (the
growth needs a game run). handle_census_check, sync_wake_check and the cfg row check pass; every runtime file compiles
with the dev flags, and perf.c, kernel.c, win32.c and cfg.c add no -Wall -Wextra warnings.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-13 18:41:39 -05:00

46 lines
1.8 KiB
Python

"""Build and run tests/handle_census_check.c: the census of the process's handles by kind (runtime/platform/win32.c
plat_handle_census) sees 20 events and 5 sections made and closed, and its total agrees with the process's handle
count. Windows only (elsewhere the program says it skipped). No game files, no GPU.
Usage: handle_census_check.py
"""
import os
import shutil
import subprocess
import sys
from pathlib import Path
ROOT = Path(__file__).resolve().parents[1]
MSYS_BIN = Path(r'C:\msys64\ucrt64\bin')
def compiler():
if os.environ.get('CC'):
return os.environ['CC']
if os.name == 'nt' and (MSYS_BIN / 'clang.exe').exists():
return str(MSYS_BIN / 'clang.exe')
return shutil.which('clang') or 'clang'
def main():
work = ROOT / 'build' / 'test' / 'handle_census'
work.mkdir(parents=True, exist_ok=True)
win = os.name == 'nt'
exe = work / ('handle_census_check.exe' if win else 'handle_census_check')
env = dict(os.environ)
if win and MSYS_BIN.exists():
env['PATH'] = str(MSYS_BIN) + os.pathsep + env.get('PATH', '')
rt = ROOT / 'runtime'
plat = [rt / 'platform' / ('win32.c' if win else 'linux.c'), rt / 'platform' / 'common.c']
libs = ['-lbcrypt', '-lws2_32', '-lpsapi', '-lwinmm', '-ldbghelp', '-lshell32', '-lole32', '-luser32', '-ladvapi32'] if win \
else ['-lpthread']
subprocess.check_call([compiler(), '-O1', '-g', '-Wall', '-Wno-unused-function', '-fno-strict-aliasing',
'-march=x86-64-v3', '-I', str(rt),
str(ROOT / 'tests' / 'handle_census_check.c'), *map(str, plat), '-o', str(exe), '-lm', *libs],
env=env)
return subprocess.run([str(exe)], env=env, timeout=120).returncode
if __name__ == '__main__':
sys.exit(main())