TCP Immediate Data Transfer: Push Function
The fact that TCP takes incoming data from a process as an unstructured stream of bytes gives it great flexibility in meeting the needs of most applications. There is no need for an application to create blocks or messages; it just sends the data to TCP when it is ready for transmission. For its part, TCP has no knowledge or interest in the meaning of the bytes of data in this stream. They are just bytes, and TCP sends them without any real concern for their structure or purpose.
This has a couple of interesting effects on how applications work. One is that TCP does not provide any natural indication of the dividing point between pieces of data, such as database records or files. The application must take ...
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