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FIXED: the binary driver (NOTEDB::binary) encounters now if a note

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entry is bigger then MaxNoteByte. It prints the overlapping
                part to STDERR, and a warning message and finally saves
                the complete, unchanged note entry to an external text file.
This commit is contained in:
TLINDEN
2012-02-10 20:30:10 +01:00
parent c15c8ba731
commit 23c301be2a
8 changed files with 404 additions and 301 deletions
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49
NOTEDB/binary.pm
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@@ -8,6 +8,7 @@ package NOTEDB;
use strict;
use Data::Dumper;
use IO::Seekable;
use File::Spec;
use NOTEDB;
@@ -32,13 +33,15 @@ sub new
exit(1);
}
$self->{version} = "(NOTEDB::binary, 1.7)";
$self->{version} = "(NOTEDB::binary, 1.8)";
$self->{NOTEDB} = $dbname;
my $TYPEDEF = "i a$MAX_NOTE a$MAX_TIME";
my $SIZEOF = length pack($TYPEDEF, () );
$self->{sizeof} = $SIZEOF;
$self->{typedef} = $TYPEDEF;
$self->{maxnote} = $MAX_NOTE;
return $self;
}
@@ -192,9 +195,11 @@ sub get_search
sub set_edit
{
sub set_edit {
my($this, $num, $note, $date) = @_;
$this->warn_if_too_big($note, $num);
my $address = ($num -1 ) * $this->{sizeof};
open NOTE, "+<$this->{NOTEDB}" or die "could not open $this->{NOTEDB}\n";
@@ -214,9 +219,11 @@ sub set_edit
}
sub set_new
{
sub set_new {
my($this, $num, $note, $date) = @_;
$this->warn_if_too_big($note, $num);
open NOTE, "+<$this->{NOTEDB}" or die "could not open $this->{NOTEDB}\n";
flock NOTE, LOCK_EX;
@@ -307,6 +314,7 @@ sub uen
$T = pack("u", $_[0]);
}
chomp $T;
return $T;
}
@@ -326,6 +334,36 @@ sub ude
}
sub warn_if_too_big {
my ($this, $note, $num) = @_;
my $len = length($this->uen($note));
if ($len > $this->{maxnote}) {
# calculate the 30% uuencoding overhead
my $overhead = int(($this->{maxnote} / 100) * 28);
# fetch what's left by driver
my $left = substr $note, $this->{maxnote} - $overhead;
$left = "\n$left\n";
$left =~ s/\n/\n> /gs;
print STDERR "*** WARNING $this->{version} WARNING ***\n"
."The driver encountered a string length problem with your\n"
."note entry number $num. The entry is too long. Either shorten\n"
."the entry or resize the database field for entries.\n\n"
."The following data has been cut off the entry:\n"
."\n$left\n\n";
my $copy = File::Spec->catfile($ENV{'HOME'}, "entry-$num.txt");
open N, ">$copy" or die "Could not open $copy: $!\n";
print N $note;
close N;
print "*** Wrote the complete note entry number $num to file: $copy ***\n";
}
}
@@ -407,5 +445,4 @@ please see the section SYNOPSIS, it says it all.
Thomas Linden <tom@daemon.de>.
=cut