#!/usr/bin/env python3
"""可靠进程存活监控: 以 adb pidof + /proc/<pid> 为唯一事实来源.

不用 frida enumerate_processes 判断存活 (有延迟/漏报, 且 spawn 后枚举不稳定)。
用法: python3 watch_proc.py <seconds> [label]  -- 对当前 com.duowan.kiwi 进程做轮询
输出: 每 2s 一行 pid/状态; 结束时报告存活与否与死亡精确时长。
"""
import subprocess, sys, time

ADB = ["adb", "-s", "127.0.0.1:5555"]
PACKAGE = "com.duowan.kiwi"

def adb(*a):
    return subprocess.run(ADB + list(a), capture_output=True, text=True)

def pidof():
    r = adb("shell", "pidof", PACKAGE)
    out = r.stdout.strip()
    return [int(x) for x in out.split()] if out else []

def proc_ok(pid):
    r = adb("shell", "ls", f"/proc/{pid}/status")
    return r.returncode == 0

def main():
    seconds = int(sys.argv[1]) if len(sys.argv) > 1 else 60
    label = sys.argv[2] if len(sys.argv) > 2 else ""
    print(f"[watch:{label}] {seconds}s, 起点 pids={pidof()}", flush=True)
    t0 = time.time()
    seen = {}
    last_alive = t0
    last_dead = None
    while time.time() - t0 < seconds:
        pids = pidof()
        if pids:
            for p in pids:
                seen.setdefault(p, time.time())
            last_alive = time.time()
            last_dead = None
            print(f"  +{time.time()-t0:5.1f}s ALIVE pids={pids}", flush=True)
        else:
            if last_dead is None:
                last_dead = time.time()
                print(f"  +{time.time()-t0:5.1f}s DEAD  (was alive={last_alive-t0:.1f}s)", flush=True)
        time.sleep(2)
    dur = time.time() - t0
    final = pidof()
    print(f"[watch:{label}] 结束: alive={bool(final)} final_pids={final} 存活时长={last_alive-t0:.1f}s 死亡时刻={last_dead-t0 if last_dead else '未死亡'} 总时长={dur:.1f}s", flush=True)

if __name__ == "__main__":
    main()