_pssunos.py 文件源码

def open_files(self):
        retlist = []
        hit_enoent = False
        procfs_path = self._procfs_path
        pathdir = '%s/%d/path' % (procfs_path, self.pid)
        for fd in os.listdir('%s/%d/fd' % (procfs_path, self.pid)):
            path = os.path.join(pathdir, fd)
            if os.path.islink(path):
                try:
                    file = os.readlink(path)
                except OSError as err:
                    # ENOENT == file which is gone in the meantime
                    if err.errno == errno.ENOENT:
                        hit_enoent = True
                        continue
                    raise
                else:
                    if isfile_strict(file):
                        retlist.append(_common.popenfile(file, int(fd)))
        if hit_enoent:
            # raise NSP if the process disappeared on us
            os.stat('%s/%s' % (procfs_path, self.pid))
        return retlist