Add a log for the concurrent flash limit

Ensure we always log the current flash limit and the
current waiting queue size.

Test: unit tests
Bug: 63930794
Change-Id: Id51186a1c28833e373535da3726012334fc165e9

1 files changed, 5 insertions, 1 deletions

diff --git a/src/com/android/tradefed/targetprep/DeviceFlashPreparer.java b/src/com/android/tradefed/targetprep/DeviceFlashPreparer.java
index f691e702b..0f5b9540e 100644
--- a/src/com/android/tradefed/targetprep/DeviceFlashPreparer.java
+++ b/src/com/android/tradefed/targetprep/DeviceFlashPreparer.java
@@ -214,7 +214,11 @@ public abstract class DeviceFlashPreparer implements ITargetCleaner {
                 }
             }
         }
-
+        CLog.i(
+                "Requesting a flashing permit out of the host max limit of %s. Current queue "
+                        + "length: %s",
+                getHostOptions().getConcurrentFlasherLimit(),
+                sConcurrentFlashLock.getQueueLength());
         sConcurrentFlashLock.acquireUninterruptibly();
     }