Add buffer pool stats

Change-Id: I15d1df825b4d4fc760da83d9c878a621936bb6fa
Signed-off-by: Ondrej Fabry <ofabry@cisco.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/api/stats.go b/api/stats.go
index 9c3a16f..0bf9908 100644
--- a/api/stats.go
+++ b/api/stats.go
@@ -68,10 +68,24 @@ type ErrorCounter struct {
 	Value       uint64
 }
 
+// BufferStats represents statistics per buffer pool.
+type BufferStats struct {
+	Buffer map[string]BufferPool
+}
+
+// BufferPool represents buffer pool.
+type BufferPool struct {
+	PoolName  string
+	Cached    float64
+	Used      float64
+	Available float64
+}
+
 // StatsProvider provides the methods for getting statistics.
 type StatsProvider interface {
 	GetSystemStats() (*SystemStats, error)
 	GetNodeStats() (*NodeStats, error)
 	GetInterfaceStats() (*InterfaceStats, error)
 	GetErrorStats(names ...string) (*ErrorStats, error)
+	GetBufferStats() (*BufferStats, error)
 }