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07/02/2009 at 03:00AM PDT, ID: 24539044 | Points: 500
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How do I Flush the Input buffer?

Asked by taurean_aj in Perl Programming Language, Asterisk Open Source Telephony, Voice Over IP

Tags: Asterisk, Perl, AGI

Hi,

I am using asterisk 1.2.25-voiceone with xlite softphone for an IVR Solution.
Making use of the Asterisk Gateway Interface(agi) and using Perl for the logic. The input buffer does not empty itself every time i try to use the get_data function to fetch the data(input) from user. At that time somehow the input buffer is full and it doesn't accept the input character which I enter when I hear the playback file.

A temporary solution to this was to create one empty sound file named tempTT and use that in get_data for playing back that file and it works when I use get_data with tempTT file for 3 to 4 times in a loop. But again, this is a random behaviour; if buffer contains something more then I  need to use tempTT file more often, may be 6 to 7 times. This is completely unacceptable solution as behaviour is randomised. Can anyone suggest me some help for this?

Wherever we get any problem of get_data not accepting input I call this function like flush(); 
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$GetMainOption = &Dialouge1("Start_Key_Menu", "timeOut3", "1");
                &Flush();
sub Dialouge1()
{
        my($file,$timeout,$len)=@_;
        $pin = '';
        &Flush();
        $pin = $AGI->get_data("$soundFilePath/$file","$timeout","$len");
        return $pin;
}
 
sub Flush()
{
        print "EXEC PLAYBACK $soundFilePath/tempTT\n";
        my $i=0;
        while($i<3)
        {
                #$tempVar = $AGI->get_data("$soundFilePath/tempTT", "1" , "1");
                $tempVar = $AGI->get_data("$soundFilePath/tempTT", "1" , "1000000");
                $i++;
        }
        $|++;
}
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[+][-]07/02/09 03:22 AM, ID: 24761826

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[+][-]07/07/09 05:18 AM, ID: 24793467

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[+][-]07/09/09 08:41 AM, ID: 24814860

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[+][-]07/09/09 09:12 AM, ID: 24815207

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[+][-]07/09/09 09:27 AM, ID: 24815361

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