static void
on_content_changed (struct evbuffer * buf,
const struct evbuffer_cb_info * info,
void * vtask)
{
const size_t n_added = info->n_added;
struct tr_webseed_task * task = vtask;
tr_session * session = task->session;
tr_sessionLock (session);
if (!task->dead && (n_added>0))
{
uint32_t len;
struct tr_webseed * w = task->webseed;
tr_bandwidthUsed (&w->bandwidth, TR_DOWN, n_added, true, tr_time_msec ());
fire_client_got_piece_data (w, n_added);
len = evbuffer_get_length (buf);
if (!task->response_code)
{
tr_webGetTaskInfo (task->web_task, TR_WEB_GET_CODE, &task->response_code);
if (task->response_code == 206)
{
const char * url;
struct connection_succeeded_data * data;
url = NULL;
tr_webGetTaskInfo (task->web_task, TR_WEB_GET_REAL_URL, &url);
data = tr_new (struct connection_succeeded_data, 1);
data->webseed = w;
data->real_url = tr_strdup (url);
data->piece_index = task->piece_index;
data->piece_offset = task->piece_offset + (task->blocks_done * task->block_size) + (len - 1);
/* processing this uses a tr_torrent pointer,
so push the work to the libevent thread... */
tr_runInEventThread (w->session, connection_succeeded, data);
}
}
static void
canReadWrapper( tr_peerIo * io )
{
tr_bool err = 0;
tr_bool done = 0;
tr_session * session;
dbgmsg( io, "canRead" );
assert( tr_isPeerIo( io ) );
assert( tr_isSession( io->session ) );
tr_peerIoRef( io );
session = io->session;
/* try to consume the input buffer */
if( io->canRead )
{
tr_sessionLock( session );
while( !done && !err )
{
size_t piece = 0;
const size_t oldLen = EVBUFFER_LENGTH( io->inbuf );
const int ret = io->canRead( io, io->userData, &piece );
const size_t used = oldLen - EVBUFFER_LENGTH( io->inbuf );
assert( tr_isPeerIo( io ) );
if( piece || (piece!=used) )
{
const uint64_t now = tr_time_msec( );
if( piece )
tr_bandwidthUsed( &io->bandwidth, TR_DOWN, piece, TRUE, now );
if( used != piece )
tr_bandwidthUsed( &io->bandwidth, TR_DOWN, used - piece, FALSE, now );
}
switch( ret )
{
case READ_NOW:
if( EVBUFFER_LENGTH( io->inbuf ) )
continue;
done = 1;
break;
case READ_LATER:
done = 1;
break;
case READ_ERR:
err = 1;
break;
}
assert( tr_isPeerIo( io ) );
}
tr_sessionUnlock( session );
}
/* keep the iobuf's excess capacity from growing too large */
if( EVBUFFER_LENGTH( io->inbuf ) == 0 ) {
evbuffer_free( io->inbuf );
io->inbuf = evbuffer_new( );
}
assert( tr_isPeerIo( io ) );
tr_peerIoUnref( io );
}