iotests.py: Store socket files in $SOCK_DIR

iotests.py itself does not store socket files, but machine.py and
qtest.py do.  iotests.py needs to pass the respective path to them, and
they need to adhere to it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20191017133155.5327-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

python/qemu/machine.py

@@ -71,7 +71,7 @@ class QEMUMachine(object):
 
     def __init__(self, binary, args=None, wrapper=None, name=None,
                  test_dir="/var/tmp", monitor_address=None,
-                 socket_scm_helper=None):
+                 socket_scm_helper=None, sock_dir=None):
         '''
         Initialize a QEMUMachine
 
@@ -90,6 +90,8 @@ def __init__(self, binary, args=None, wrapper=None, name=None,
             wrapper = []
         if name is None:
             name = "qemu-%d" % os.getpid()
+        if sock_dir is None:
+            sock_dir = test_dir
         self._name = name
         self._monitor_address = monitor_address
         self._vm_monitor = None
@@ -106,12 +108,14 @@ def __init__(self, binary, args=None, wrapper=None, name=None,
         self._qemu_full_args = None
         self._test_dir = test_dir
         self._temp_dir = None
+        self._sock_dir = sock_dir
         self._launched = False
         self._machine = None
         self._console_set = False
         self._console_device_type = None
         self._console_address = None
         self._console_socket = None
+        self._remove_files = []
 
         # just in case logging wasn't configured by the main script:
         logging.basicConfig()
@@ -236,8 +240,9 @@ def _base_args(self):
         if self._machine is not None:
             args.extend(['-machine', self._machine])
         if self._console_set:
-            self._console_address = os.path.join(self._temp_dir,
+            self._console_address = os.path.join(self._sock_dir,
                                                  self._name + "-console.sock")
+            self._remove_files.append(self._console_address)
             chardev = ('socket,id=console,path=%s,server,nowait' %
                        self._console_address)
             args.extend(['-chardev', chardev])
@@ -253,8 +258,9 @@ def _pre_launch(self):
         if self._monitor_address is not None:
             self._vm_monitor = self._monitor_address
         else:
-            self._vm_monitor = os.path.join(self._temp_dir,
+            self._vm_monitor = os.path.join(self._sock_dir,
                                             self._name + "-monitor.sock")
+            self._remove_files.append(self._vm_monitor)
         self._qemu_log_path = os.path.join(self._temp_dir, self._name + ".log")
         self._qemu_log_file = open(self._qemu_log_path, 'wb')
 
@@ -279,6 +285,9 @@ def _post_shutdown(self):
             shutil.rmtree(self._temp_dir)
             self._temp_dir = None
 
+        while len(self._remove_files) > 0:
+            self._remove_if_exists(self._remove_files.pop())
+
     def launch(self):
         """
         Launch the VM and make sure we cleanup and expose the

python/qemu/qtest.py

@@ -84,14 +84,17 @@ class QEMUQtestMachine(QEMUMachine):
     '''A QEMU VM'''
 
     def __init__(self, binary, args=None, name=None, test_dir="/var/tmp",
-                 socket_scm_helper=None):
+                 socket_scm_helper=None, sock_dir=None):
         if name is None:
             name = "qemu-%d" % os.getpid()
+        if sock_dir is None:
+            sock_dir = test_dir
         super(QEMUQtestMachine,
               self).__init__(binary, args, name=name, test_dir=test_dir,
-                             socket_scm_helper=socket_scm_helper)
+                             socket_scm_helper=socket_scm_helper,
+                             sock_dir=sock_dir)
         self._qtest = None
-        self._qtest_path = os.path.join(test_dir, name + "-qtest.sock")
+        self._qtest_path = os.path.join(sock_dir, name + "-qtest.sock")
 
     def _base_args(self):
         args = super(QEMUQtestMachine, self)._base_args()

tests/qemu-iotests/iotests.py

@@ -57,6 +57,7 @@
 imgfmt = os.environ.get('IMGFMT', 'raw')
 imgproto = os.environ.get('IMGPROTO', 'file')
 test_dir = os.environ.get('TEST_DIR')
+sock_dir = os.environ.get('SOCK_DIR')
 output_dir = os.environ.get('OUTPUT_DIR', '.')
 cachemode = os.environ.get('CACHEMODE')
 qemu_default_machine = os.environ.get('QEMU_DEFAULT_MACHINE')
@@ -456,7 +457,8 @@ def __init__(self, path_suffix=''):
         name = "qemu%s-%d" % (path_suffix, os.getpid())
         super(VM, self).__init__(qemu_prog, qemu_opts, name=name,
                                  test_dir=test_dir,
-                                 socket_scm_helper=socket_scm_helper)
+                                 socket_scm_helper=socket_scm_helper,
+                                 sock_dir=sock_dir)
         self._num_drives = 0
 
     def add_object(self, opts):