Merge pull request #13 from OPAE/mgerlach/master-fix-exclusive

fpgasupdate: fix exlusive locking of /dev/iffpga_sec*
OFS · Jul 26, 2019 · 666b4fb · 666b4fb
2 parents 22b7760 + 9f0c871
commit 666b4fb
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/opae.admin/opae/admin/fpga.py b/opae.admin/opae/admin/fpga.py
@@ -59,10 +59,12 @@ def ioctl(self, req, data, mutate_flag=True):
                 return data
 
     def __enter__(self):
-        self._fd = os.open(self.devpath, os.O_SYNC | os.O_RDWR | os.O_EXCL)
+        self._fd = os.open(self.devpath, os.O_SYNC | os.O_RDWR)
+        fcntl.lockf(self._fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
         return self._fd
 
     def __exit__(self, ex_type, ex_val, ex_traceback):
+        fcntl.lockf(self._fd, fcntl.LOCK_UN)
         os.close(self._fd)