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FileAnalysis: optimize get_file_handle event queueing.

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When a file handle is needed and the last event in the queue is also
a get_file_handle event with the same arguments, instead of queueing
a new event, just remember to cache/re-use the resulting handle from
the previous event.  This depends on get_file_handle handlers not
changing global state that is also used to derive the file handle
string.
This commit is contained in:
Jon Siwek 2013-04-02 16:21:51 -05:00
parent 390358b70c
commit fc267d010d
10 changed files with 88 additions and 37 deletions
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4
scripts/base/protocols/smtp/file-analysis.bro
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@ -17,8 +17,8 @@ export {
{
if ( ! c?$smtp ) return "";
return fmt("%s %s %s %s", ANALYZER_SMTP, c$start_time,
c$smtp$trans_depth, c$smtp_state$mime_level);
return cat(ANALYZER_SMTP, " ", c$start_time, " ",
c$smtp$trans_depth, " ", c$smtp_state$mime_level);
}
}