如何知道文件是Android NDK被访问的确切位置 [英] How to know the exact location where the file is being accessed in Android NDK

问题描述

使用lsof的我可以检查打开的文件列表中没有任何命令或由我能察觉其中的文件文件正在访问的任何其他方式。
lsof的命令的输出如下： -

With "lsof" i can check the list of open files is there any command or any other way by which i can detect where the files the files are being accessed. The output of "lsof" command is as follows:-

COMMAND     PID       USER   FD      TYPE             DEVICE  SIZE/OFF       NODE NAME

init          1        ???  cwd       ???                ???       ???        ??? /proc/1/cwd (readlink: Permission denied)

init          1        ???  exe       ???                ???       ???        ??? /proc/1/exe (readlink: Permission denied)

init          1        ??? root       ???                ???       ???        ??? /proc/1/root (readlink: Permission denied)

init          1        ???  FDS                                                   /proc/1/fd/ (opendir: Permission denied)

init          2        ???  cwd       ???                ???       ???        ??? /proc/2/cwd (readlink: Permission denied)

init          2        ???  exe       ???                ???       ???        ??? /proc/2/exe (readlink: Permission denied)

init          2        ??? root       ???                ???       ???        ??? /proc/2/root (readlink: Permission denied)

init          2        ???  FDS                                                   /proc/2/fd/ (opendir: Permission denied)

init          3        ???  cwd       ???                ???       ???        ??? /proc/3/cwd (readlink: Permission denied)

init          3        ???  exe       ???                ???       ???        ??? /proc/3/exe (readlink: Permission denied)

init          3        ??? root       ???                ???       ???        ??? /proc/3/root (readlink: Permission denied)

init          3        ???  FDS                                                   /proc/3/fd/ (opendir: Permission denied)

init          4        ???  cwd       ???                ???       ???        ??? /proc/4/cwd (readlink: Permission denied)

init          4        ???  exe       ???                ???       ???        ??? /proc/4/exe (readlink: Permission denied)

init          4        ??? root       ???                ???       ???        ??? /proc/4/root (readlink: Permission denied)

init          4        ???  FDS                                                   /proc/4/fd/ (opendir: Permission denied)

init          5        ???  cwd       ???                ???       ???        ??? /proc/5/cwd (readlink: Permission denied)

init          5        ???  exe       ???                ???       ???        ??? /proc/5/exe (readlink: Permission denied)

init          5        ??? root       ???                ???       ???        ??? /proc/5/root (readlink: Permission denied)

init          5        ???  FDS                                                   /proc/5/fd/ (opendir: Permission denied)

init          6        ???  cwd       ???                ???       ???        ??? /proc/6/cwd (readlink: Permission denied)

init          6        ???  exe       ???                ???       ???        ??? /proc/6/exe (readlink: Permission denied)

init          6        ??? root       ???                ???       ???        ??? /proc/6/root (readlink: Permission denied)

init          6        ???  FDS                                                   /proc/6/fd/ (opendir: Permission denied)

init          7        ???  cwd       ???                ???       ???        ??? /proc/7/cwd (readlink: Permission denied)

init          7        ???  exe       ???                ???       ???        ??? /proc/7/exe (readlink: Permission denied)

init          7        ??? root       ???                ???       ???        ??? /proc/7/root (readlink: Permission denied)

init          7        ???  FDS                                                   /proc/7/fd/ (opendir: Permission denied)

init          8        ???  cwd       ???                ???       ???        ??? /proc/8/cwd (readlink: Permission denied)

init          8        ???  exe       ???                ???       ???        ??? /proc/8/exe (readlink: Permission denied)

init          8        ??? root       ???                ???       ???        ??? /proc/8/root (readlink: Permission denied)

init          8        ???  FDS                                                   /proc/8/fd/ (opendir: Permission denied)

init          9        ???  cwd       ???                ???       ???        ??? /proc/9/cwd (readlink: Permission denied)

init          9        ???  exe       ???                ???       ???        ??? /proc/9/exe (readlink: Permission denied)

init          9        ??? root       ???                ???       ???        ??? /proc/9/root (readlink: Permission denied)

init          9        ???  FDS                                                   /proc/9/fd/ (opendir: Permission denied)

init         10        ???  cwd       ???                ???       ???        ??? /proc/10/cwd (readlink: Permission denied)

每个PID我得到像三个位置的PID9我得到以下位置： -
的/ proc / 1 / CWD（的readlink：权限被拒绝），的/ proc / 9 / EXE，的/ proc / 9 / FD /（执行opendir：权限被拒绝）

For each pid i am getting three locations like for pid "9" i am getting the following locations:- "/proc/1/cwd (readlink: Permission denied)","/proc/9/exe","/proc/9/fd/ (opendir: Permission denied)"

现在怎么能知道我究竟是正在使用的文件？
我是个新手，所以不知道enough.Any的建议是从你身边有很大的帮助。

Now how can i know which file is exactly being used? I am a newbie so don't know enough.Any suggestion would be a great help from your side.

推荐答案

尝试定影器。 http://linux.die.net/man/1/fuser
它被用来识别使用文件或套接字处理。

Try fuser. http://linux.die.net/man/1/fuser It is used to identify processes using files or sockets.

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