Add SuspendReason enum and change Suspension functions.

More self-documenting and more type safe.

Bug: 62821960
Test: ./test.py
Change-Id: Ic7a1ae6a25e687d65f5aa10c1aad54a7b80dd086

1 files changed, 4 insertions, 2 deletions

diff --git a/runtime/monitor.cc b/runtime/monitor.cc
index 940afc8448..3e3eaae13a 100644
--- a/runtime/monitor.cc
+++ b/runtime/monitor.cc
@@ -898,7 +898,9 @@ void Monitor::InflateThinLocked(Thread* self, Handle<mirror::Object> obj, LockWo
     Thread* owner;
     {
       ScopedThreadSuspension sts(self, kBlocked);
-      owner = thread_list->SuspendThreadByThreadId(owner_thread_id, false, &timed_out);
+      owner = thread_list->SuspendThreadByThreadId(owner_thread_id,
+                                                   SuspendReason::kInternal,
+                                                   &timed_out);
     }
     if (owner != nullptr) {
       // We succeeded in suspending the thread, check the lock's status didn't change.
@@ -908,7 +910,7 @@ void Monitor::InflateThinLocked(Thread* self, Handle<mirror::Object> obj, LockWo
         // Go ahead and inflate the lock.
         Inflate(self, owner, obj.Get(), hash_code);
       }
-      thread_list->Resume(owner, false);
+      thread_list->Resume(owner, SuspendReason::kInternal);
     }
     self->SetMonitorEnterObject(nullptr);
   }