recv() 方法什么时候返回 0？
When is recv() method returning 0?
有人可以解释 recv() 方法何时 returning 0 吗？当然提供了比 0 字节长的缓冲区。方法是阻塞的，所以它应该等到它收到某些东西或抛出错误并且 return -1。我有标志 - 0 集。不是非阻塞模式。
... If the connection has been gracefully closed, the return value is
zero.
... The return value will be 0 when the peer has performed an
orderly shutdown.
有人可以解释 recv() 方法何时 returning 0 吗？当然提供了比 0 字节长的缓冲区。方法是阻塞的，所以它应该等到它收到某些东西或抛出错误并且 return -1。我有标志 - 0 集。不是非阻塞模式。
... If the connection has been gracefully closed, the return value is zero.
... The return value will be 0 when the peer has performed an orderly shutdown.