Add flag to pin and service command to release isolates

runtime/vm/service.cc

Index: runtime/vm/service.cc
diff --git a/runtime/vm/service.cc b/runtime/vm/service.cc
index cedc6ba01ad71779bd1d9168c6682a635d5463e4..34e5859fee0bf57bb13ec022673389aa1bef23ae 100644
--- a/runtime/vm/service.cc
+++ b/runtime/vm/service.cc
@@ -1091,6 +1091,13 @@ static bool HandleAllocationProfile(Isolate* isolate, JSONStream* js) {
 }
 
 
+static bool HandleRelease(Isolate* isolate, JSONStream* js) {
+  // TODO(johnmccutchan): What do I respond with??

[Ivan Posva, 2014/02/27 18:07:16]

How about responding with something that brings up the main observatory page?

[Cutch, 2014/02/27 18:13:48]

Punting on this for now.

+  isolate->ClosePinPort();
+  return true;
+}
+
+
 static IsolateMessageHandlerEntry isolate_handlers[] = {
   { "_echo", HandleIsolateEcho },
   { "", HandleIsolate },
@@ -1104,6 +1111,7 @@ static IsolateMessageHandlerEntry isolate_handlers[] = {
   { "objecthistogram", HandleObjectHistogram},
   { "objects", HandleObjects },
   { "profile", HandleProfile },
+  { "release", HandleRelease },

[Ivan Posva, 2014/02/27 18:07:16]

release sounds too generic. How about releaseIsolate or release_isolate?

[Cutch, 2014/02/27 18:13:48]

"unpin".

   { "scripts", HandleScripts },
   { "stacktrace", HandleStackTrace },
 };