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FileAnalysis: insert explicit event queue flush points.

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And added an event called "event_queue_flush_point" to mark where that
occured in the event stream.  The FAF now uses an explicit event queue
flush instead of buffering input in order to wait for a file handle to
be returned from script-layer.
This commit is contained in:
Jon Siwek 2013-04-10 16:48:10 -05:00
parent d9321e2203
commit 2747e839fb
15 changed files with 128 additions and 382 deletions
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22
scripts/base/protocols/irc/file-analysis.bro
View file

@ -5,26 +5,20 @@
module IRC;
export {
## Determines whether the default :bro:see:`get_file_handle` handler
## is used to return file handles to the file analysis framework.
## Redefine to true in order to provide a custom handler which overrides
## the default for IRC.
const disable_default_file_handle_provider: bool = F &redef;
## Default file handle provider for IRC.
function get_file_handle(c: connection, is_orig: bool): string
{
if ( is_orig ) return "";
return fmt("%s %s %s", ANALYZER_IRC_DATA, c$start_time,
id_string(c$id));
}
global get_file_handle: function(c: connection, is_orig: bool): string;
}
function get_file_handle(c: connection, is_orig: bool): string
{
if ( is_orig ) return "";
return fmt("%s %s %s", ANALYZER_IRC_DATA, c$start_time, id_string(c$id));
}
module GLOBAL;
event get_file_handle(tag: AnalyzerTag, c: connection, is_orig: bool)
{
if ( tag != ANALYZER_IRC_DATA ) return;
if ( IRC::disable_default_file_handle_provider ) return;
return_file_handle(IRC::get_file_handle(c, is_orig));
set_file_handle(IRC::get_file_handle(c, is_orig));
}