#!/usr/bin/env python3
# a8clear.py - no-ptrace A8/NvOgl count clearer: finds each live vk_frame's
# libnvidia-eglcore base (the off==0 mapping) and writes 0 to the u32 at
# base+0x2070b7c whenever it is nonzero (the count gate t91 cleared via gdb).
import os, subprocess, sys, time
DUR = float(sys.argv[1]) if len(sys.argv) > 1 else 600
def pids():
    try:
        out = subprocess.run(["pgrep", "-x", "vk_frame"], capture_output=True).stdout
        return [int(x) for x in out.split()]
    except Exception:
        return []
log = set()
end = time.time() + DUR
while time.time() < end:
    for pid in pids():
        base = None
        try:
            for line in open("/proc/%d/maps" % pid):
                p = line.split()
                if len(p) < 6 or "libnvidia-eglcore" not in p[-1]:
                    continue
                try:
                    off = int(p[2], 16)
                except Exception:
                    continue
                if off == 0:
                    base = int(p[0].split("-")[0], 16)
                    break
        except Exception:
            continue
        if not base:
            continue
        w = base + 0x2070b7c
        try:
            fd = os.open("/proc/%d/mem" % pid, os.O_RDWR)
            os.lseek(fd, w, 0)
            v = os.read(fd, 4)
            if len(v) == 4:
                n = int.from_bytes(v, "little")
                if n:
                    os.lseek(fd, w, 0)
                    os.write(fd, b"\x00\x00\x00\x00")
                    k = (pid, n)
                    if len(log) < 40:
                        log.add(k)
                        print("A8CLEAR pid=%d count=%u -> 0" % (pid, n), flush=True)
            os.close(fd)
        except Exception:
            pass
    time.sleep(0.5)
print("A8CLEAR-DONE", flush=True)