recv

What happens , then , if you have something like world . recv ( 0,1 , data ); on the receiver side ?

如果在接收方有world.recv（0,1，data）；这样的代码，会发生什么？

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ACEINETAddr的使用方法：这有助于捕捉正在传输数据的对等计算机。

When the application calls recv or WSARecv , the data is copied from AFD . SYS 's buffers to the application-provided buffer .

当应用程序调用recv（）或WSARecv（）函数时，数据将从内部缓冲拷贝到应用程序提供的缓冲区。

It is not enough to just use read ( 2 ) and write ( 2 ), or recv ( 2 ) or send ( 2 ), the moment your socket becomes non-blocking .

当您的套接字变成非阻塞时，仅使用read（2）和write（2），或recv（2）或者send（2）是不够的。

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。

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。