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< / pre > < pre class = "rust" > < code > < span class = "kw" > use< / span > < span class = "ident" > std::error::Error< / span > ;
< span class = "kw" > use< / span > < span class = "ident" > std::io::Error< / span > < span class = "kw" > as< / span > < span class = "ident" > IoError< / span > ;
< span class = "kw" > use< / span > < span class = "ident" > std::io::ErrorKind< / span > ;
< span class = "kw" > use< / span > < span class = "ident" > std::io< / span > ::{< span class = "ident" > Read< / span > , < span class = "ident" > Write< / span > };
< span class = "kw" > use< / span > < span class = "ident" > std::os::unix::net::UnixStream< / span > ;
< span class = "kw" > use< / span > < span class = "ident" > std::time< / span > ::{< span class = "ident" > Duration< / span > , < span class = "ident" > SystemTime< / span > };
< span class = "kw" > use< / span > < span class = "ident" > < span class = "kw" > crate< / span > ::unix_proto< / span > ::{< span class = "ident" > ClientRequest< / span > , < span class = "ident" > ClientResponse< / span > };
< span class = "kw" > const< / span > < span class = "ident" > TIMEOUT< / span > : < span class = "ident" > u64< / span > < span class = "op" > =< / span > < span class = "number" > 2000< / span > ;
< span class = "kw" > pub< / span > < span class = "kw" > fn< / span > < span class = "ident" > call_daemon_blocking< / span > (
< span class = "ident" > path< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > str< / span > ,
< span class = "ident" > req< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > ClientRequest< / span > ,
) -> < span class = "prelude-ty" > Result< / span > < span class = "op" > < < / span > < span class = "ident" > ClientResponse< / span > , < span class = "ident" > Box< / span > < span class = "op" > < < / span > < span class = "kw" > dyn< / span > < span class = "ident" > Error< / span > < span class = "op" > > < / span > < span class = "op" > > < / span > {
< span class = "kw" > let< / span > < span class = "kw-2" > mut< / span > < span class = "ident" > stream< / span > < span class = "op" > =< / span > < span class = "ident" > UnixStream::connect< / span > (< span class = "ident" > path< / span > )
.< span class = "ident" > and_then< / span > (< span class = "op" > |< / span > < span class = "ident" > socket< / span > < span class = "op" > |< / span > {
< span class = "ident" > socket< / span >
.< span class = "ident" > set_read_timeout< / span > (< span class = "prelude-val" > Some< / span > (< span class = "ident" > Duration::from_millis< / span > (< span class = "ident" > TIMEOUT< / span > )))
.< span class = "ident" > map< / span > (< span class = "op" > |< / span > < span class = "kw" > _< / span > < span class = "op" > |< / span > < span class = "ident" > socket< / span > )
})
.< span class = "ident" > and_then< / span > (< span class = "op" > |< / span > < span class = "ident" > socket< / span > < span class = "op" > |< / span > {
< span class = "ident" > socket< / span >
.< span class = "ident" > set_write_timeout< / span > (< span class = "prelude-val" > Some< / span > (< span class = "ident" > Duration::from_millis< / span > (< span class = "ident" > TIMEOUT< / span > )))
.< span class = "ident" > map< / span > (< span class = "op" > |< / span > < span class = "kw" > _< / span > < span class = "op" > |< / span > < span class = "ident" > socket< / span > )
})
.< span class = "ident" > map_err< / span > (< span class = "op" > |< / span > < span class = "ident" > e< / span > < span class = "op" > |< / span > {
< span class = "macro" > error!< / span > (< span class = "string" > " stream setup error -> {:?}" < / span > , < span class = "ident" > e< / span > );
< span class = "ident" > e< / span >
})
.< span class = "ident" > map_err< / span > (< span class = "ident" > Box::new< / span > )< span class = "question-mark" > ?< / span > ;
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< span class = "kw" > let< / span > < span class = "ident" > data< / span > < span class = "op" > =< / span > < span class = "ident" > serde_json::to_vec< / span > (< span class = "kw-2" > & < / span > < span class = "ident" > req< / span > ).< span class = "ident" > map_err< / span > (< span class = "op" > |< / span > < span class = "ident" > e< / span > < span class = "op" > |< / span > {
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< span class = "macro" > error!< / span > (< span class = "string" > " socket encoding error -> {:?}" < / span > , < span class = "ident" > e< / span > );
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< span class = "ident" > Box::new< / span > (< span class = "ident" > IoError::new< / span > (< span class = "ident" > ErrorKind::Other< / span > , < span class = "string" > " JSON encode error" < / span > ))
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})< span class = "question-mark" > ?< / span > ;
< span class = "comment" > // .map_err(Box::new)?;< / span >
< span class = "ident" > stream< / span >
.< span class = "ident" > write_all< / span > (< span class = "ident" > data< / span > .< span class = "ident" > as_slice< / span > ())
.< span class = "ident" > and_then< / span > (< span class = "op" > |< / span > < span class = "kw" > _< / span > < span class = "op" > |< / span > < span class = "ident" > stream< / span > .< span class = "ident" > flush< / span > ())
.< span class = "ident" > map_err< / span > (< span class = "op" > |< / span > < span class = "ident" > e< / span > < span class = "op" > |< / span > {
< span class = "macro" > error!< / span > (< span class = "string" > " stream write error -> {:?}" < / span > , < span class = "ident" > e< / span > );
< span class = "ident" > e< / span >
})
.< span class = "ident" > map_err< / span > (< span class = "ident" > Box::new< / span > )< span class = "question-mark" > ?< / span > ;
< span class = "comment" > // Now wait on the response.< / span >
< span class = "kw" > let< / span > < span class = "ident" > start< / span > < span class = "op" > =< / span > < span class = "ident" > SystemTime::now< / span > ();
< span class = "kw" > let< / span > < span class = "ident" > timeout< / span > < span class = "op" > =< / span > < span class = "ident" > Duration::from_millis< / span > (< span class = "ident" > TIMEOUT< / span > );
< span class = "kw" > let< / span > < span class = "kw-2" > mut< / span > < span class = "ident" > read_started< / span > < span class = "op" > =< / span > < span class = "bool-val" > false< / span > ;
< span class = "kw" > let< / span > < span class = "kw-2" > mut< / span > < span class = "ident" > data< / span > < span class = "op" > =< / span > < span class = "ident" > Vec::with_capacity< / span > (< span class = "number" > 1024< / span > );
< span class = "kw" > let< / span > < span class = "kw-2" > mut< / span > < span class = "ident" > counter< / span > < span class = "op" > =< / span > < span class = "number" > 0< / span > ;
< span class = "kw" > loop< / span > {
< span class = "kw" > let< / span > < span class = "kw-2" > mut< / span > < span class = "ident" > buffer< / span > < span class = "op" > =< / span > [< span class = "number" > 0< / span > ; < span class = "number" > 1024< / span > ];
< span class = "kw" > let< / span > < span class = "ident" > durr< / span > < span class = "op" > =< / span > < span class = "ident" > SystemTime::now< / span > ().< span class = "ident" > duration_since< / span > (< span class = "ident" > start< / span > ).< span class = "ident" > map_err< / span > (< span class = "ident" > Box::new< / span > )< span class = "question-mark" > ?< / span > ;
< span class = "kw" > if< / span > < span class = "ident" > durr< / span > < span class = "op" > > < / span > < span class = "ident" > timeout< / span > {
< span class = "macro" > error!< / span > (< span class = "string" > " Socket timeout" < / span > );
< span class = "comment" > // timed out, not enough activity.< / span >
< span class = "kw" > break< / span > ;
}
< span class = "comment" > // Would be a lot easier if we had peek ...< / span >
< span class = "comment" > // https://github.com/rust-lang/rust/issues/76923< / span >
< span class = "kw" > match< / span > < span class = "ident" > stream< / span > .< span class = "ident" > read< / span > (< span class = "kw-2" > & mut< / span > < span class = "ident" > buffer< / span > ) {
< span class = "prelude-val" > Ok< / span > (< span class = "number" > 0< / span > ) => {
< span class = "kw" > if< / span > < span class = "ident" > read_started< / span > {
< span class = "macro" > debug!< / span > (< span class = "string" > " read_started true, we have completed" < / span > );
< span class = "comment" > // We' re done, no more bytes.< / span >
< span class = "kw" > break< / span > ;
} < span class = "kw" > else< / span > {
< span class = "macro" > debug!< / span > (< span class = "string" > " Waiting ..." < / span > );
< span class = "comment" > // Still can wait ...< / span >
< span class = "kw" > continue< / span > ;
}
}
< span class = "prelude-val" > Ok< / span > (< span class = "ident" > count< / span > ) => {
< span class = "ident" > data< / span > .< span class = "ident" > extend_from_slice< / span > (< span class = "kw-2" > & < / span > < span class = "ident" > buffer< / span > );
< span class = "ident" > counter< / span > < span class = "op" > +< / span > < span class = "op" > =< / span > < span class = "ident" > count< / span > ;
< span class = "kw" > if< / span > < span class = "ident" > count< / span > < span class = "op" > ==< / span > < span class = "number" > 1024< / span > {
< span class = "macro" > debug!< / span > (< span class = "string" > " Filled 1024 bytes, looping ..." < / span > );
< span class = "comment" > // We have filled the buffer, we need to copy and loop again.< / span >
< span class = "ident" > read_started< / span > < span class = "op" > =< / span > < span class = "bool-val" > true< / span > ;
< span class = "kw" > continue< / span > ;
} < span class = "kw" > else< / span > {
< span class = "macro" > debug!< / span > (< span class = "string" > " Filled {} bytes, complete" < / span > , < span class = "ident" > count< / span > );
< span class = "comment" > // We have a partial read, so we are complete.< / span >
< span class = "kw" > break< / span > ;
}
}
< span class = "prelude-val" > Err< / span > (< span class = "ident" > e< / span > ) => {
< span class = "macro" > error!< / span > (< span class = "string" > " Steam read failure -> {:?}" < / span > , < span class = "ident" > e< / span > );
< span class = "comment" > // Failure!< / span >
< span class = "kw" > return< / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > Box::new< / span > (< span class = "ident" > e< / span > ));
}
}
}
< span class = "comment" > // Extend from slice fills with 0' s, so we need to truncate now.< / span >
< span class = "ident" > data< / span > .< span class = "ident" > truncate< / span > (< span class = "ident" > counter< / span > );
< span class = "comment" > // Now attempt to decode.< / span >
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< span class = "kw" > let< / span > < span class = "ident" > cr< / span > < span class = "op" > =< / span > < span class = "ident" > serde_json::from_slice< / span > ::< span class = "op" > < < / span > < span class = "ident" > ClientResponse< / span > < span class = "op" > > < / span > (< span class = "ident" > data< / span > .< span class = "ident" > as_slice< / span > ()).< span class = "ident" > map_err< / span > (< span class = "op" > |< / span > < span class = "ident" > e< / span > < span class = "op" > |< / span > {
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< span class = "macro" > error!< / span > (< span class = "string" > " socket encoding error -> {:?}" < / span > , < span class = "ident" > e< / span > );
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< span class = "ident" > Box::new< / span > (< span class = "ident" > IoError::new< / span > (< span class = "ident" > ErrorKind::Other< / span > , < span class = "string" > " JSON decode error" < / span > ))
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})< span class = "question-mark" > ?< / span > ;
< span class = "prelude-val" > Ok< / span > (< span class = "ident" > cr< / span > )
}
< / code > < / pre > < / div >
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< / section > < / div > < / main > < div id = "rustdoc-vars" data-root-path = "../../" data-current-crate = "kanidm_unix_common" data-themes = "ayu,dark,light" data-resource-suffix = "" data-rustdoc-version = "1.62.0 (a8314ef7d 2022-06-27)" > < / div >
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< / body > < / html >
