Table 4-1 summarizes the system calls commonly used in controlling and transferring data and messages within a stream.
Table 4-1 System Calls Used
Man Page |
Description |
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Reads data from a stream |
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Writes data to a stream |
|
Controls a stream |
|
Receives a message at the stream head |
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Receives a priority message at the stream head |
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Sends a message downstream |
|
Sends a priority message downstream |
|
Identifies files on which a user can send or receive messages, or on which certain events have occurred (historically, it was restricted to streams but it does not need to be restricted to streams) |
|
Creates a bidirectional channel that provides a communication path between multiple processes
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