Note the use of ACE_INET_Addr in the recv method: This helps capture the peer computer from which the data was being transmitted.

注意recv方法中对ACE_INET_Addr的使用方法：这有助于捕捉正在传输数据的对等计算机。

For processes 1 and 2, the recv function is blocking, which means that the program will wait until it receives a message with tag ID 9 from process 0.

对于进程1和2,recv函数被阻塞，这意味着程序会等待，直到从进程0收到标签id为9的消息。

While recv (a library function used by the process), recvfrom, and recvmsg operate only on socket descriptor, read and readv can operate on any kind of descriptor.

尽管recv(进程使用的库函数)、recvfrom和recvmsg仅可以对套接字描述符操作，但read和readv可以对任何种类的描述符操作。

In this case, you iterate through the contents of the recv aggregate, sum the packet lengths for each tuple (device name, PID, and process name), then emit this data.

在本例中，您将遍历recv聚合的内容、为每个元组(设备名、PID和进程名)相加包的长度，然后发出该数据。