1 files changed, 27 insertions, 0 deletions

diff --git a/src/swarm/stats.rs b/src/swarm/stats.rs
index 218d5e8..5cac16a 100644
--- a/src/swarm/stats.rs
+++ b/src/swarm/stats.rs
@@ -141,6 +141,13 @@ pub(crate) struct Relay {
     pub(crate) chunks_deflated: u64,
     pub(crate) chunk_bytes: u64,
     pub(crate) chunk_bytes_sent: u64,
+    /// Blob chunks fetched (`blob::fetch`): asked of another source as late, asked of a
+    /// second source at the end, come when held already, and come from a peer dropped
+    /// as a source meanwhile (kept, its hash being good).
+    pub(crate) chunks_timed_out: u64,
+    pub(crate) chunks_doubled: u64,
+    pub(crate) chunks_twice: u64,
+    pub(crate) chunks_from_dropped: u64,
     /// Sync messages received that carried changes, all of which we had already, and
     /// their payload's bytes: changes that came twice. Of those, how many came along a
     /// writer's tree (`SyncEnvelope::writer`), and how many were taken as delivered by
@@ -277,6 +284,26 @@ impl NodeStats {
         inner.relay.chunk_bytes_sent += sent as u64;
     }
 
+    /// `count` blob chunks we fetch went to another source, as late.
+    pub(crate) fn chunks_timed_out(&self, count: usize) {
+        self.lock().relay.chunks_timed_out += count as u64;
+    }
+
+    /// `count` blob chunks we fetch were asked of a second source, at the end.
+    pub(crate) fn chunks_doubled(&self, count: usize) {
+        self.lock().relay.chunks_doubled += count as u64;
+    }
+
+    /// A blob chunk we fetch came when we held it already.
+    pub(crate) fn chunk_twice(&self) {
+        self.lock().relay.chunks_twice += 1;
+    }
+
+    /// A blob chunk we fetch came from a peer no longer a source.
+    pub(crate) fn chunk_from_dropped(&self) {
+        self.lock().relay.chunks_from_dropped += 1;
+    }
+
     /// A sync message of `from` bytes went out deflated to `to`.
     pub(crate) fn deflated(&self, from: usize, to: usize) {
         let mut inner = self.lock();