Unix domain socket or IPC socket (inter-process communication socket) and named pipes

参考 https://en.wikipedia.org/wiki/Unix_domain_socket https://en.wikipedia.org/wiki/Inter-process_communication Unix domain socket or IPC socket (inter-process communication socket) 进程间通信，其具体实现有多种方式，named pipes就是一种方式 Like named pipes, Unix domain sockets support transmission of a reliable stream of bytes (SOCK_STREAM, compare to TCP). In addition, they support ordered and reliable transmission of datagrams (SOCK_SEQPACKET), or unordered and unreliable transmission of datagrams (SOCK_DGRAM, compare to UDP). Unix domain sockets支持可靠的字节流，就像TCP一样，此外还支持有序的可靠的datagrams的传输，按我的理解，就像IP对数据包进行分段一样，每个分段有序号，到达目的地之后再按序还原，此外还有无序不可靠的例如UDP