tree dcfbe6a93d399eec4d9860420e2f10c6b8df914b
parent 81421cd62c3f1449a7990cacc22351a0679c6282
author Mike Burrows <m3b@google.com> 1469643141 -0700
committer Mike Burrows <m3b@google.com> 1469643141 -0700

v.io/x/devtools/vmon: use lock to protect concurrent accesses to map

The map "aggs" was being modified concurrently by the statsWorker()
threads.  This caused crash:
	https://veyron.corp.google.com/jenkins/job/monitoring-cloud-syncbase/109367/console

This change introduces a mutex to fix it.

Change-Id: I1530c68131af162499ea97802efa32417a647266