文件句柄

• Maximum number of file handles
  文件句柄的最大数目
• The operating system file handle for the file encapsulated by this
  对象所封装文件的操作系统文件句柄，或者如果
• Even closing the file handle does not break you out of the read operation
  既使关掉文件句柄也不能打断读操作。
• Number of used file handles
  已使用文件句柄的数目
• Notice that the state of the file handle is checked before it is closed
  注意，在关闭文件句柄之前要检查它的状态。
• Class for the specified file handle , with the specified read write permission and
  实例所属权为指定的文件句柄初始化
• Defines the maximum number of file - handles that the linux kernel will allocate
  定义linux内核最多分配的文件句柄个数
• This specifies the maximum number of file handles that can be allocated
  该文件指定了可以分配的文件句柄的最大数目。
• Wrapper class . due to the inaccessibility of the wrapped file handle , the
  由于无法访问经过包装的文件句柄，所以不支持
• New functions were added to support locking and unlocking file handles
  添加了新函数，以支持对文件句柄的锁定和取消锁定。