cashew: reset local counter on plan transition

src/procfs_byte_counter.cc

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/procfs_byte_counter.h"
 
 #include <stdio.h>
 
 #include <glog/logging.h>
 
@@ skipping 47 matching lines @@
 }
 
 const std::string& ProcfsByteCounter::GetInterface() const {
   return interface_;
 }
 
 uint64 ProcfsByteCounter::GetRxBytes() const {
   return counter_rx_bytes_;
 }
 
+void ProcfsByteCounter::SetRxBytes(uint64 rx_bytes) {
+  DLOG(INFO) << interface_ << ": SetRxBytes: rx_bytes = " << rx_bytes;
+  counter_rx_bytes_ = rx_bytes;
+}
+
 uint64 ProcfsByteCounter::GetTxBytes() const {
   return counter_tx_bytes_;
 }
 
+void ProcfsByteCounter::SetTxBytes(uint64 tx_bytes) {
+  DLOG(INFO) << interface_ << ": SetTxBytes: tx_bytes = " << tx_bytes;
+  counter_tx_bytes_ = tx_bytes;
+}
+
 void ProcfsByteCounter::SetDelegate(ByteCounterDelegate *delegate) {
   DLOG(INFO) << interface_ << ": SetDelegate";
   delegate_ = delegate;
 }
 
 // private methods
 
 bool ProcfsByteCounter::OpenProcNetDev() {
   DCHECK(proc_net_dev_fp_ == NULL);
   if ((proc_net_dev_fp_ = fopen(kProcNetDevPath, "r")) == NULL) {
@@ skipping 136 matching lines @@
     baseline_initialized_ = true;
   }
   // We update the baseline on each new sample so that we aren't confused about
   // how many times the device counter has wrapped around since we've started.
   // This works as long as the sample interval is short enough to prevent wrap
   // around between consecutive samples.
   baseline_stats_ = stats;
 }
 
 }  // namespace cashew