[#70] Support configuring buffer size for put

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>

cmd/http-gw/app.go

@@ -72,10 +72,11 @@ type (
 
 	// appSettings stores reloading parameters, so it has to provide getters and setters which use RWMutex.
 	appSettings struct {
-		mu               sync.RWMutex
-		defaultTimestamp bool
-		zipCompression   bool
-		clientCut        bool
+		mu                  sync.RWMutex
+		defaultTimestamp    bool
+		zipCompression      bool
+		clientCut           bool
+		bufferMaxSizeForPut uint64
 	}
 )
 
@@ -177,6 +178,18 @@ func (s *appSettings) setClientCut(val bool) {
 	s.mu.Unlock()
 }
 
+func (s *appSettings) BufferMaxSizeForPut() uint64 {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.bufferMaxSizeForPut
+}
+
+func (s *appSettings) setBufferMaxSizeForPut(val uint64) {
+	s.mu.Lock()
+	s.bufferMaxSizeForPut = val
+	s.mu.Unlock()
+}
+
 func (a *app) initAppSettings() {
 	a.settings = &appSettings{}
 
@@ -462,6 +475,7 @@ func (a *app) updateSettings() {
 	a.settings.setDefaultTimestamp(a.cfg.GetBool(cfgUploaderHeaderEnableDefaultTimestamp))
 	a.settings.setZipCompression(a.cfg.GetBool(cfgZipCompression))
 	a.settings.setClientCut(a.cfg.GetBool(cfgClientCut))
+	a.settings.setBufferMaxSizeForPut(a.cfg.GetUint64(cfgBufferMaxSizeForPut))
 }
 
 func (a *app) startServices() {