BaseTools: Enable block queue log agent.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1875

To support Ctrl+S and Ctrl+Q, we enable block queue
for log.

Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Liming Gao <liming.gao@intel.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/BaseTools/Source/Python/Common/EdkLogger.py b/BaseTools/Source/Python/Common/EdkLogger.py
index 15fd1458a9..06da4a9d0a 100644
--- a/BaseTools/Source/Python/Common/EdkLogger.py
+++ b/BaseTools/Source/Python/Common/EdkLogger.py
@@ -95,7 +95,9 @@ except:
                 self.enqueue(self.prepare(record))

             except Exception:

                 self.handleError(record)

-

+class BlockQueueHandler(QueueHandler):

+    def enqueue(self, record):

+        self.queue.put(record,True)

 ## Log level constants

 DEBUG_0 = 1

 DEBUG_1 = 2

@@ -292,19 +294,19 @@ def LogClientInitialize(log_q):
     #

     # For DEBUG level (All DEBUG_0~9 are applicable)

     _DebugLogger.setLevel(INFO)

-    _DebugChannel = QueueHandler(log_q)

+    _DebugChannel = BlockQueueHandler(log_q)

     _DebugChannel.setFormatter(_DebugFormatter)

     _DebugLogger.addHandler(_DebugChannel)

 

     # For VERBOSE, INFO, WARN level

     _InfoLogger.setLevel(INFO)

-    _InfoChannel = QueueHandler(log_q)

+    _InfoChannel = BlockQueueHandler(log_q)

     _InfoChannel.setFormatter(_InfoFormatter)

     _InfoLogger.addHandler(_InfoChannel)

 

     # For ERROR level

     _ErrorLogger.setLevel(INFO)

-    _ErrorCh = QueueHandler(log_q)

+    _ErrorCh = BlockQueueHandler(log_q)

     _ErrorCh.setFormatter(_ErrorFormatter)

     _ErrorLogger.addHandler(_ErrorCh)