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Provide set_used_sectors() for Btrfs 

Add set_used_sectors() method to Btrfs handler, to show usage statistics
on unmounted volumes.
This commit is contained in:
Luca Bruno 2010-10-03 16:57:42 +02:00
parent 0125278eb7
commit 5c05233072
1 changed files with 37 additions and 2 deletions
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39
src/btrfs.cc
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@ -61,8 +61,43 @@ bool btrfs::check_repair( const Partition & partition, OperationDetail & operati
void btrfs::set_used_sectors( Partition & partition )
{
// TODO
return;
if ( ! Utils::execute_command( "btrfs-show " + partition .get_path(), output, error, true ) )
{
Glib::ustring size_label;
if ( ((index = output .find( "FS bytes" )) < output .length()) &&
(size_label=Utils::regexp_label(output .substr( index ), "^FS bytes used (.*)B")) .length() > 0)
{
gchar *suffix;
gdouble rawN = g_ascii_strtod (size_label.c_str(),&suffix);
unsigned long long mult=0;
switch(suffix[0]){
case 'K':
mult=KIBIBYTE;
break;
case 'M':
mult=MEBIBYTE;
break;
case 'G':
mult=GIBIBYTE;
break;
case 'T':
mult=TEBIBYTE;
break;
default:
mult=1;
break;
}
partition .set_used( Utils::round( (rawN * mult)/ double(partition .sector_size) ) ) ;
}
}
else
{
if ( ! output .empty() )
partition .messages .push_back( output ) ;
if ( ! error .empty() )
partition .messages .push_back( error ) ;
}
}
bool btrfs::write_label( const Partition & partition, OperationDetail & operationdetail )