Make woodpecker spotting more usable by adjusting count every 2 minutes

ot_clean.c

@@ -16,6 +16,7 @@
 #include "ot_mutex.h"
 #include "ot_vector.h"
 #include "ot_clean.h"
+#include "ot_stats.h"
 
 /* Returns amount of removed peers */
 static ssize_t clean_single_bucket( ot_peer *peers, size_t peer_count, time_t timedout, int *removed_seeders ) {
@@ -121,6 +122,7 @@ static void * clean_worker( void * args ) {
         return NULL;
       usleep( OT_CLEAN_SLEEP );
     }
+    stats_cleanup();
   }
   return NULL;
 }

ot_stats.c

@@ -731,6 +731,14 @@ void stats_issue_event( ot_status_event event, PROTO_FLAG proto, uintptr_t event
   }
 }
 
+void stats_cleanup() {
+#ifdef WANT_SPOT_WOODPECKER
+  pthread_mutex_lock( &g_woodpeckers_mutex );
+  stats_shift_down_network_count( &stats_woodpeckers_tree, 0, 1 );
+  pthread_mutex_unlock( &g_woodpeckers_mutex );
+#endif
+}
+
 static void * stats_worker( void * args ) {
   int iovec_entries;
   struct iovec *iovector;

ot_stats.h

@@ -39,6 +39,7 @@ enum {
 
 void   stats_issue_event( ot_status_event event, PROTO_FLAG proto, uintptr_t event_data );
 void   stats_deliver( int64 sock, int tasktype );
+void   stats_cleanup();
 size_t return_stats_for_tracker( char *reply, int mode, int format );
 size_t stats_return_tracker_version( char *reply );
 void   stats_init( );