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(trunk libT) #3631 "crash in tr_ioFindFileLocation" -- add tracer messages to try & smoke out the error

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Charles Kerr 2010-10-14 04:21:14 +00:00
parent 35ac787457
commit dbed40ff5a
1 changed files with 17 additions and 2 deletions
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19
libtransmission/inout.c
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@ -167,8 +167,7 @@ readOrWriteBytes( tr_session * session,
}
static int
compareOffsetToFile( const void * a,
const void * b )
compareOffsetToFile( const void * a, const void * b )
{
const uint64_t offset = *(const uint64_t*)a;
const tr_file * file = b;
@ -188,10 +187,26 @@ tr_ioFindFileLocation( const tr_torrent * tor,
const uint64_t offset = tr_pieceOffset( tor, pieceIndex, pieceOffset, 0 );
const tr_file * file;
assert( tr_isTorrent( tor ) );
assert( offset < tor->info.totalSize );
file = bsearch( &offset,
tor->info.files, tor->info.fileCount, sizeof( tr_file ),
compareOffsetToFile );
if( file == NULL ) {
unsigned int i;
fprintf( stderr, "%s", "transmission error\n" );
fprintf( stderr, "pieceIndex %d\n", (int)pieceIndex );
fprintf( stderr, "pieceOffset %d\n", (int)pieceOffset );
fprintf( stderr, "couldn't find file matching offset %"PRIu64"\n", offset );
fprintf( stderr, "total torrent size %"PRIu64"\n", tor->info.totalSize );
fprintf( stderr, "%u files\n", (unsigned int)tor->info.fileCount );
for( i=0; i<tor->info.fileCount; ++i ) fprintf( stderr, "file #%u offset %"PRIu64" length %"PRIu64"\n", i, tor->info.files[i].offset, tor->info.files[i].length );
}
assert( file != NULL );
*fileIndex = file - tor->info.files;
*fileOffset = offset - file->offset;