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visitorckw 2023-09-01 04:32:57 +08:00
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@ -1220,7 +1220,7 @@ Consider using this mechanism, in case you want to document something kernel rel
\subsection{Manage /proc file with seq\_file}
\label{sec:manage_procfs_with_seq_file}
As we have seen, writing a \verb|/proc| file may be quite ``complex''.
So to help people writting \verb|/proc| file, there is an API named \cpp|seq_file| that helps formating a \verb|/proc| file for output.
So to help people writing \verb|/proc| file, there is an API named \cpp|seq_file| that helps formatting a \verb|/proc| file for output.
It is based on sequence, which is composed of 3 functions: \cpp|start()|, \cpp|next()|, and \cpp|stop()|.
The \cpp|seq_file| API starts a sequence when a user read the \verb|/proc| file.