tracers.diff

diff --git a/libtransmission/announcer-udp.cc b/libtransmission/announcer-udp.cc
index e8c178883..5a5979c45 100644
--- a/libtransmission/announcer-udp.cc
+++ b/libtransmission/announcer-udp.cc
@@ -304,6 +304,7 @@ struct tau_tracker
         TR_ASSERT(addr_);
         if (!addr_)
         {
+            fmt::print("can't send request; no address yet\n");
             return;
         }
 
@@ -339,7 +340,9 @@ struct tau_tracker
         // do we have a DNS request that's ready?
         if (addr_pending_dns_ && addr_pending_dns_->wait_for(0ms) == std::future_status::ready)
         {
+            fmt::print("{:s}:{:d} dns lookup finished\n", __FILE__, __LINE__);
             addr_ = addr_pending_dns_->get();
+            fmt::print("{:s}:{:d} dns result has value? {:d}\n", __FILE__, __LINE__, addr_.has_value());
             addr_pending_dns_.reset();
             addr_expires_at_ = now + DnsRetryIntervalSecs;
         }
@@ -347,12 +350,14 @@ struct tau_tracker
         // are there any requests pending?
         if (this->isIdle())
         {
+            fmt::print("{:s}:{:d} is idle; doing nothing\n", __FILE__, __LINE__);
             return;
         }
 
         // update the addr if our lookup is past its shelf date
         if (!addr_pending_dns_ && addr_expires_at_ <= now)
         {
+            fmt::print("{:s}:{:d} making new dns request for host '{:s}' port {:d}\n", __FILE__, __LINE__, host.sv(), port.host());
             addr_.reset();
             addr_pending_dns_ = std::async(std::launch::async, lookup, this->host, this->port, this->key);
             return;
@@ -370,6 +375,8 @@ struct tau_tracker
         /* also need a valid connection ID... */
         if (addr_ && !is_connected(now) && this->connecting_at == 0)
         {
+            fmt::print("{:s}:{:d} sending connection request\n", __FILE__, __LINE__);
+
             this->connecting_at = now;
             this->connection_transaction_id = tau_transaction_new();
             logtrace(this->key, fmt::format("Trying to connect. Transaction ID is {}", this->connection_transaction_id));
@@ -385,11 +392,13 @@ struct tau_tracker
 
         if (timeout_reqs)
         {
+            fmt::print("{:s}:{:d} timing out requests\n", __FILE__, __LINE__);
             timeout_requests(now);
         }
 
         if (addr_ && is_connected(now))
         {
+            fmt::print("{:s}:{:d} calling send_requests\n", __FILE__, __LINE__);
             send_requests();
         }
     }