static void
saveProgress( tr_benc * dict,
const tr_torrent * tor )
{
size_t i, n;
time_t * mtimes;
tr_benc * p;
tr_benc * m;
const tr_bitfield * bitfield;
p = tr_bencDictAdd( dict, KEY_PROGRESS );
tr_bencInitDict( p, 2 );
/* add the mtimes */
mtimes = tr_torrentGetMTimes( tor, &n );
m = tr_bencDictAddList( p, KEY_PROGRESS_MTIMES, n );
for( i = 0; i < n; ++i )
{
if( !tr_torrentIsFileChecked( tor, i ) )
mtimes[i] = ~(time_t)0; /* force a recheck */
tr_bencListAddInt( m, mtimes[i] );
}
/* add the bitfield */
bitfield = tr_cpBlockBitfield( tor->completion );
tr_bencDictAddRaw( p, KEY_PROGRESS_BITFIELD,
bitfield->bits, bitfield->byteCount );
/* cleanup */
tr_free( mtimes );
}
static void
saveFilePriorities( tr_benc * dict, const tr_torrent * tor )
{
const tr_info * inf = tr_torrentInfo( tor );
const tr_file_index_t n = inf->fileCount;
tr_file_index_t i;
tr_benc * list;
list = tr_bencDictAddList( dict, KEY_FILE_PRIORITIES, n );
for( i = 0; i < n; ++i )
tr_bencListAddInt( list, inf->files[i].priority );
}
static void
saveDND( tr_benc * dict, const tr_torrent * tor )
{
tr_benc * list;
tr_file_index_t i;
const tr_info * const inf = tr_torrentInfo( tor );
const tr_file_index_t n = inf->fileCount;
list = tr_bencDictAddList( dict, KEY_DND, n );
for( i=0; i<n; ++i )
tr_bencListAddInt( list, inf->files[i].dnd ? 1 : 0 );
}
static void
saveProgress( tr_benc * dict, tr_torrent * tor )
{
tr_benc * l;
tr_benc * prog;
tr_file_index_t fi;
const tr_info * inf = tr_torrentInfo( tor );
const time_t now = tr_time( );
prog = tr_bencDictAddDict( dict, KEY_PROGRESS, 3 );
/* add the file/piece check timestamps... */
l = tr_bencDictAddList( prog, KEY_PROGRESS_CHECKTIME, inf->fileCount );
for( fi=0; fi<inf->fileCount; ++fi )
{
const tr_piece * p;
const tr_piece * pend;
time_t oldest_nonzero = now;
time_t newest = 0;
tr_bool has_zero = FALSE;
const time_t mtime = tr_torrentGetFileMTime( tor, fi );
const tr_file * f = &inf->files[fi];
/* get the oldest and newest nonzero timestamps for pieces in this file */
for( p=&inf->pieces[f->firstPiece], pend=&inf->pieces[f->lastPiece]; p!=pend; ++p )
{
if( !p->timeChecked )
has_zero = TRUE;
else if( oldest_nonzero > p->timeChecked )
oldest_nonzero = p->timeChecked;
if( newest < p->timeChecked )
newest = p->timeChecked;
}
/* If some of a file's pieces have been checked more recently than
the file's mtime, and some lest recently, then that file will
have a list containing timestamps for each piece.
However, the most common use case is that the file doesn't change
after it's downloaded. To reduce overhead in the .resume file,
only a single timestamp is saved for the file if *all* or *none*
of the pieces were tested more recently than the file's mtime. */
if( !has_zero && ( mtime <= oldest_nonzero ) ) /* all checked */
tr_bencListAddInt( l, oldest_nonzero );
else if( newest < mtime ) /* none checked */
tr_bencListAddInt( l, newest );
else { /* some are checked, some aren't... so list piece by piece */
const int offset = oldest_nonzero - 1;
tr_benc * ll = tr_bencListAddList( l, 2 + f->lastPiece - f->firstPiece );
tr_bencListAddInt( ll, offset );
for( p=&inf->pieces[f->firstPiece], pend=&inf->pieces[f->lastPiece]+1; p!=pend; ++p )
tr_bencListAddInt( ll, p->timeChecked ? p->timeChecked - offset : 0 );
}
}
/* add the progress */
if( tor->completeness == TR_SEED )
tr_bencDictAddStr( prog, KEY_PROGRESS_HAVE, "all" );
/* add the blocks bitfield */
tr_bitsetToBenc( tr_cpBlockBitset( &tor->completion ),
tr_bencDictAdd( prog, KEY_PROGRESS_BLOCKS ) );
}
