Diff: test/stress_tests/msd_remount_test.py

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/stress_tests/msd_remount_test.py	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,149 @@
+#
+# DAPLink Interface Firmware
+# Copyright (c) 2016-2017, ARM Limited, All Rights Reserved
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import mbed_lstools
+import threading
+import time
+import os
+import sys
+
+
+# This prevents the following error message from getting
+# displayed on windows if the mbed dismounts unexpectedly
+# during a transfer:
+#   There is no disk in the drive. Please insert a disk into
+#   drive \Device\<Harddiskx>\<rdrive>
+def disable_popup():
+    if sys.platform.startswith("win"):
+        # pylint: disable=invalid-name
+        import ctypes
+        SEM_FAILCRITICALERRORS = 1
+        GetErrorMode = \
+            ctypes.windll.kernel32.GetErrorMode  # @UndefinedVariable
+        GetErrorMode.restype = ctypes.c_uint
+        GetErrorMode.argtypes = []
+        SetErrorMode = \
+            ctypes.windll.kernel32.SetErrorMode  # @UndefinedVariable
+        SetErrorMode.restype = ctypes.c_uint
+        SetErrorMode.argtypes = [ctypes.c_uint]
+
+        err_mode = GetErrorMode()
+        err_mode |= SEM_FAILCRITICALERRORS
+        SetErrorMode(err_mode)
+
+MAX_REMOUNT_TIME = 5 * 60
+should_exit = False
+exit_cond = threading.Condition()
+print_mut = threading.RLock()
+global_start_time = time.time()
+
+
+class ExitException(Exception):
+    pass
+
+
+def _get_time():
+    return time.time() - global_start_time
+
+
+def sync_print(msg):
+    with print_mut:
+        print(msg)
+
+
+def get_mount_point(board_id):
+    lstools = mbed_lstools.create()
+    mbed_list = lstools.list_mbeds()
+    for mbed in mbed_list:
+        if mbed['target_id'] == board_id:
+            return mbed['mount_point']
+    else:
+        Exception("Board %s not found" % board_id)
+
+
+def msd_remount_main(thread_index, board_id):
+    global should_exit
+    try:
+        mount_point = get_mount_point(board_id)
+        while True:
+            if should_exit:
+                raise ExitException()
+
+            # Trigger a remount
+            sync_print("Triggering remount for %i %s - %s at %.6f - %s" %
+                       (thread_index, mount_point, board_id, _get_time(),
+                        time.strftime("%H:%M:%S")))
+            file_path = mount_point + "/" + "refresh.act"
+            with open(file_path, "wb") as _:
+                pass
+
+            # Wait for board to dismount
+            start_time = time.time()
+            while os.path.exists(mount_point):
+                if should_exit:
+                    raise ExitException()
+                if time.time() - start_time > MAX_REMOUNT_TIME:
+                    raise Exception("Board remount timed out")
+                time.sleep(0.1)
+            sync_print("Drive %s dismount" % mount_point)
+
+            # Wait for drive to come back
+            mount_point = None
+            start_time = time.time()
+            while mount_point is None:
+                if should_exit:
+                    raise ExitException()
+                mount_point = get_mount_point(board_id)
+                if time.time() - start_time > MAX_REMOUNT_TIME:
+                    raise Exception("Board remount timed out")
+                time.sleep(0.1)
+            assert os.path.exists(mount_point)
+
+            sync_print("Remount complete as %s" % mount_point)
+    except ExitException:
+        pass
+    except:
+        sync_print("Thread %i exception board %s" % (thread_index, board_id))
+        with exit_cond:
+            should_exit = 1
+            exit_cond.notify_all()
+        raise
+
+
+def main():
+    global should_exit
+    disable_popup()
+    lstools = mbed_lstools.create()
+    mbed_list = lstools.list_mbeds()
+    for thread_index, mbed in enumerate(mbed_list):
+        msd_thread = threading.Thread(target=msd_remount_main,
+                                      args=(thread_index, mbed['target_id']))
+        msd_thread.start()
+
+    try:
+        with exit_cond:
+            while not should_exit:
+                exit_cond.wait(1)
+    except KeyboardInterrupt:
+        pass
+    should_exit = True
+
+    sync_print("Exiting")
+
+if __name__ == "__main__":
+    main()