An announce with event=stopped now returns correct number of leechers and seeders. In TCP and UDP.

opentracker.c

@@ -441,10 +441,9 @@ ANNOUNCE_WORKAROUND:
       reply_size = sprintf( static_outbuf + SUCCESS_HTTP_HEADER_LENGTH, "d14:failure reason81:Your client forgot to send your torrent's info_hash. Please upgrade your client.e" );
       break;
     }
-    if( OT_FLAG( &peer ) & PEER_FLAG_STOPPED ) {
-      remove_peer_from_torrent( hash, &peer );
-      reply_size = sprintf( static_outbuf + SUCCESS_HTTP_HEADER_LENGTH, "d8:completei0e10:incompletei0e8:intervali%ie5:peers0:e", OT_CLIENT_REQUEST_INTERVAL_RANDOM );
-    } else {
+    if( OT_FLAG( &peer ) & PEER_FLAG_STOPPED )
+      reply_size = remove_peer_from_torrent( hash, &peer, SUCCESS_HTTP_HEADER_LENGTH + static_outbuf, 1 );
+    else {
       torrent = add_peer_to_torrent( hash, &peer, 0 );
       if( !torrent || !( reply_size = return_peers_for_torrent( torrent, numwant, SUCCESS_HTTP_HEADER_LENGTH + static_outbuf, 1 ) ) ) HTTPERROR_500;
     }
@@ -680,15 +679,9 @@ static void handle_udp4( int64 serversocket ) {
       outpacket[0] = htonl( 1 );    /* announce action */
       outpacket[1] = inpacket[12/4];
 
-      if( OT_FLAG( &peer ) & PEER_FLAG_STOPPED ) {
-        /* Peer is gone. */
-        remove_peer_from_torrent( hash, &peer );
-
-        /* Create fake packet to satisfy parser on the other end */
-        outpacket[2] = htonl( OT_CLIENT_REQUEST_INTERVAL_RANDOM );
-        outpacket[3] = outpacket[4] = 0;
-        r = 20;
-      } else {
+      if( OT_FLAG( &peer ) & PEER_FLAG_STOPPED ) /* Peer is gone. */
+        r = remove_peer_from_torrent( hash, &peer, static_outbuf, 0 );
+      else {
         torrent = add_peer_to_torrent( hash, &peer, 0 );
         if( !torrent )
           return; /* XXX maybe send error */

trackerlogic.c

@@ -693,19 +693,50 @@ size_t return_stats_for_slash24s( char *reply, size_t amount, ot_dword thresh )
   return r - reply;
 }
 
-void remove_peer_from_torrent( ot_hash *hash, ot_peer *peer ) {
-  int          exactmatch, i;
+size_t remove_peer_from_torrent( ot_hash *hash, ot_peer *peer, char *reply, int is_tcp ) {
+  int          exactmatch;
+  size_t       peer_count, seed_count, index;
   ot_vector   *torrents_list = &all_torrents[*hash[0]];
   ot_torrent  *torrent = binary_search( hash, torrents_list->data, torrents_list->size, sizeof( ot_torrent ), OT_HASH_COMPARE_SIZE, &exactmatch );
 
-  if( !exactmatch ) return;
+  if( !exactmatch ) {
+    if( is_tcp )
+      return sprintf( reply, "d8:completei0e10:incompletei0e8:intervali%ie5:peers0:e", OT_CLIENT_REQUEST_INTERVAL_RANDOM );
 
-  for( i=0; i<OT_POOLS_COUNT; ++i )
-    switch( vector_remove_peer( &torrent->peer_list->peers[i], peer, i == 0 ) ) {
+    /* Create fake packet to satisfy parser on the other end */
+    ((ot_dword*)reply)[2] = htonl( OT_CLIENT_REQUEST_INTERVAL_RANDOM );
+    ((ot_dword*)reply)[3] = ((ot_dword*)reply)[4] = 0;
+    return (size_t)20;
+  }
+
+  for( peer_count = seed_count = index = 0; index<OT_POOLS_COUNT; ++index ) {
+    peer_count += torrent->peer_list->peers[index].size;
+    seed_count += torrent->peer_list->seed_count[index];
+
+    switch( vector_remove_peer( &torrent->peer_list->peers[index], peer, index == 0 ) ) {
       case 0: continue;
-      case 2: torrent->peer_list->seed_count[i]--;
-      case 1: default: return;
+      case 2: torrent->peer_list->seed_count[index]--;
+              seed_count--;
+      case 1: default:
+              peer_count--;
+              goto exit_loop;
     }
+  }
+
+exit_loop:
+  for( ++index; index < OT_POOLS_COUNT; ++index ) {
+    peer_count += torrent->peer_list->peers[index].size;
+    seed_count += torrent->peer_list->seed_count[index];
+  }
+
+  if( is_tcp )
+    return sprintf( reply, "d8:completei%zde10:incompletei%zde8:intervali%ie5:peers0:e", seed_count, peer_count - seed_count, OT_CLIENT_REQUEST_INTERVAL_RANDOM );
+
+  /* else { Handle UDP reply */
+  ((ot_dword*)reply)[2] = htonl( OT_CLIENT_REQUEST_INTERVAL_RANDOM );
+  ((ot_dword*)reply)[3] = peer_count - seed_count;
+  ((ot_dword*)reply)[4] = seed_count;
+  return (size_t)20;
 }
 
 int init_logic( const char * const serverdir ) {

trackerlogic.h

@@ -87,7 +87,7 @@ void deinit_logic( void );
 enum { STATS_MRTG, STATS_TOP5, STATS_DMEM, STATS_TCP, STATS_UDP, STATS_SLASH24S, SYNC_IN, SYNC_OUT };
 
 ot_torrent *add_peer_to_torrent( ot_hash *hash, ot_peer *peer, int from_changeset );
-int    add_changeset_to_tracker( ot_byte *data, size_t len );
+size_t remove_peer_from_torrent( ot_hash *hash, ot_peer *peer, char *reply, int is_tcp );
 size_t return_peers_for_torrent( ot_torrent *torrent, size_t amount, char *reply, int is_tcp );
 size_t return_fullscrape_for_tracker( char **reply );
 size_t return_tcp_scrape_for_torrent( ot_hash *hash, char *reply );
@@ -96,8 +96,9 @@ size_t return_stats_for_tracker( char *reply, int mode );
 size_t return_stats_for_slash24s( char *reply, size_t amount, ot_dword thresh );
 size_t return_memstat_for_tracker( char **reply );
 size_t return_changeset_for_tracker( char **reply );
+int    add_changeset_to_tracker( ot_byte *data, size_t len );
 void   clean_all_torrents( void );
-void   remove_peer_from_torrent( ot_hash *hash, ot_peer *peer );
+
 #if defined ( WANT_BLACKLISTING ) || defined ( WANT_CLOSED_TRACKER )
 int    accesslist_addentry( ot_hash *hash );
 void   accesslist_reset( void );