commit 698800a90239f1fe8c85137c14b69622c8e0ff5a
author Ben Konyi <bkonyi@google.com> Tue Apr 16 20:56:39 2019 +0000
committer Ben Konyi <bkonyi@google.com> Tue Apr 16 20:56:39 2019 +0000
tree d75051b43cfad6634abc72e975e279e9f5591802
parent e7f75e11aeb4ea1a28072b169c250e926244b3e1

[ VM / Service ] Initialize ThreadInterrupter state even if profiler isn't enabled.

Fixes issue #36586.

Change-Id: I2e3807d00d10e262201295744b6da8249a337e19
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99344
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Jacob Richman <jacobr@google.com>

runtime/vm/thread_interrupter.cc

diff --git a/runtime/vm/thread_interrupter.cc b/runtime/vm/thread_interrupter.cc
index ebb07bd..a7becbe 100644
--- a/runtime/vm/thread_interrupter.cc
+++ b/runtime/vm/thread_interrupter.cc
@@ -116,6 +116,10 @@
 
 // Delay between interrupts.
 void ThreadInterrupter::SetInterruptPeriod(intptr_t period) {
+  if (!initialized_) {
+    // Profiler may not be enabled.
+    return;
+  }
   MonitorLocker ml(monitor_);
   if (shutdown_) {
     return;