BaseTools: remove unnecessary calls of os.exist

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2101

This patch is going to remove unnecessary calls
of os.exist()

Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/BaseTools/Source/Python/AutoGen/AutoGenWorker.py b/BaseTools/Source/Python/AutoGen/AutoGenWorker.py
index 77fbd8b369..94ea61a487 100755
--- a/BaseTools/Source/Python/AutoGen/AutoGenWorker.py
+++ b/BaseTools/Source/Python/AutoGen/AutoGenWorker.py
@@ -155,10 +155,11 @@ class AutoGenWorkerInProcess(mp.Process):
         try:

             taskname = "Init"

             with self.file_lock:

-                if not os.path.exists(self.data_pipe_file_path):

+                try:

+                    self.data_pipe = MemoryDataPipe()

+                    self.data_pipe.load(self.data_pipe_file_path)

+                except:

                     self.feedback_q.put(taskname + ":" + "load data pipe %s failed." % self.data_pipe_file_path)

-                self.data_pipe = MemoryDataPipe()

-                self.data_pipe.load(self.data_pipe_file_path)

             EdkLogger.LogClientInitialize(self.log_q)

             loglevel = self.data_pipe.Get("LogLevel")

             if not loglevel: