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/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * 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.
 */
/*
  Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus

  Permission is hereby granted, free of charge, to any person obtaining
  a copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
  without limitation the rights to use, copy, modify, merge, publish,
  distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to
  the following conditions:

  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#include <unistd.h>
#include <stdlib.h>

#include <vppinfra/mem.h>
#include <vppinfra/heap.h>
#include <vppinfra/format.h>

static int verbose;
#define if_verbose(format,args...) \
  if (verbose) { clib_warning(format, ## args); }

u32
vl (void *p)
{
  return (vec_len (p));
}

int
main (int argc, char *argv[])
{
  word i, j, k, n, check_mask;
  u32 seed;
  u32 *h = 0;
  uword *objects = 0;
  uword *handles = 0;
  uword objects_used;
  uword align;

  clib_mem_init (0, 10 << 20);

  n = 10;
  seed = (u32) getpid ();
  check_mask = 0;

  if (argc > 1)
    {
      n = atoi (argv[1]);
      verbose = 1;
    }
  if (argc > 2)
    {
      word i = atoi (argv[2]);
      if (i)
	seed = i;
    }
  if (argc > 3)
    check_mask = atoi (argv[3]);

  align = 0;
  if (argc > 4)
    align = 1 << atoi (argv[4]);

  if_verbose ("testing %wd iterations seed %wd\n", n, seed);

  if (verbose)
    fformat (stderr, "%U\n", format_clib_mem_usage, /* verbose */ 0);

  vec_resize (objects, 1000);
  if (vec_bytes (objects) > 0)	/* stupid warning be gone */
    clib_memset (objects, ~0, vec_bytes (objects));
  vec_resize (handles, vec_len (objects));

  objects_used = 0;

  for (i = 0; i < n; i++)
    {
      while (1)
	{
	  j = random_u32 (&seed) % vec_len (objects);
	  if (objects[j] != ~0 || i + objects_used < n)
	    break;
	}

      if (objects[j] != ~0)
	{
	  heap_dealloc (h, handles[j]);
	  objects_used--;
	  objects[j] = ~0;
	}
      else
	{
	  u32 *data;
	  uword size;

	  size = 1 + (random_u32 (&seed) % 100);
	  objects[j] = heap_alloc_aligned (h, size, align, handles[j]);
	  objects_used++;

	  if (align)
	    ASSERT (0 == (objects[j] & (align - 1)));
	  ASSERT (objects[j] < vec_len (h));
	  ASSERT (size <= heap_len (h, handles[j]));

	  /* Set newly allocated object with test data. */
	  if (check_mask & 2)
	    {
	      data = h + objects[j];

	      for (k = 0; k < size; k++)
		data[k] = objects[j] + k;
	    }
	}

      if (check_mask & 1)
	heap_validate (h);

      if (check_mask & 4)
	{
	  /* Duplicate heap at each iteration. */
	  u32 *h1 = heap_dup (h);
	  heap_free (h);
	  h = h1;
	}

      /* Verify that all used objects have correct test data. */
      if (check_mask & 2)
	{
	  for (j = 0; j < vec_len (objects); j++)
	    if (objects[j] != ~0)
	      {
		u32 *data = h + objects[j];
		for (k = 0; k < heap_len (h, handles[j]); k++)
		  ASSERT (data[k] == objects[j] + k);
	      }
	}
    }

  if (verbose)
    fformat (stderr, "%U\n", format_heap, h, 1);

  {
    u32 *h1 = heap_dup (h);
    if (verbose)
      fformat (stderr, "%U\n", format_heap, h1, 1);
    heap_free (h1);
  }

  heap_free (h);
  if (verbose)
    fformat (stderr, "%U\n", format_heap, h, 1);
  // ASSERT (objects_used == 0);

  vec_free (objects);
  vec_free (handles);

  if (verbose)
    fformat (stderr, "%U\n", format_clib_mem_usage, /* verbose */ 0);

  return 0;
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */
span>, val) def _remote_exec(self, op, path=None, ret=True, *args, **kwargs): """ Execute given operation on a given, possibly nested, member remotely. """ # automatically resolve remote objects in the arguments mutable_args = list(args) for i, val in enumerate(mutable_args): if isinstance(val, RemoteClass) or \ isinstance(val, RemoteClassAttr): mutable_args[i] = val.get_remote_value() args = tuple(mutable_args) for key, val in kwargs.iteritems(): if isinstance(val, RemoteClass) or \ isinstance(val, RemoteClassAttr): kwargs[key] = val.get_remote_value() # send request args = self._make_serializable(args) kwargs = self._make_serializable(kwargs) self._pipe[RemoteClass.PIPE_PARENT].send((op, path, args, kwargs)) if not ret: # no return value expected return None timeout = self._timeout # adjust timeout specifically for the .sleep method if path.split('.')[-1] == 'sleep': if args and isinstance(args[0], (long, int)): timeout += args[0] elif 'timeout' in kwargs: timeout += kwargs['timeout'] if not self._pipe[RemoteClass.PIPE_PARENT].poll(timeout): return None try: rv = self._pipe[RemoteClass.PIPE_PARENT].recv() rv = self._deserialize(rv) return rv except EOFError: return None def _get_local_object(self, path): """ Follow the path to obtain a reference on the addressed nested attribute """ obj = self._instance for attr in path: obj = getattr(obj, attr) return obj def _get_local_value(self, path): try: return self._get_local_object(path) except AttributeError: return None def _call_local_method(self, path, *args, **kwargs): try: method = self._get_local_object(path) return method(*args, **kwargs) except AttributeError: return None def _set_local_attr(self, path, value): try: obj = self._get_local_object(path[:-1]) setattr(obj, path[-1], value) except AttributeError: pass return None def _get_local_repr(self, path): try: obj = self._get_local_object(path) return repr(obj) except AttributeError: return None def _get_local_str(self, path): try: obj = self._get_local_object(path) return str(obj) except AttributeError: return None def _serializable(self, obj): """ Test if the given object is serializable """ try: dumps(obj) return True except: return False def _make_obj_serializable(self, obj): """ Make a serializable copy of an object. Members which are difficult/impossible to serialize are stripped. """ if self._serializable(obj): return obj # already serializable copy = SerializableClassCopy() # copy at least serializable attributes and properties for name, member in inspect.getmembers(obj): if name[0] == '_': # skip private members continue if callable(member) and not isinstance(member, property): continue if not self._serializable(member): continue setattr(copy, name, member) return copy def _make_serializable(self, obj): """ Make a serializable copy of an object or a list/tuple of objects. Members which are difficult/impossible to serialize are stripped. """ if (type(obj) is list) or (type(obj) is tuple): rv = [] for item in obj: rv.append(self._make_serializable(item)) if type(obj) is tuple: rv = tuple(rv) return rv else: return self._make_obj_serializable(obj) def _deserialize_obj(self, obj): return obj def _deserialize(self, obj): if (type(obj) is list) or (type(obj) is tuple): rv = [] for item in obj: rv.append(self._deserialize(item)) if type(obj) is tuple: rv = tuple(rv) return rv else: return self._deserialize_obj(obj) def start_remote(self): """ Start remote execution """ self.start() def quit_remote(self): """ Quit remote execution """ self._remote_exec(RemoteClass.QUIT, None, False) def get_remote_value(self): """ Get value of a remotely held object """ return RemoteClassAttr(self, None).get_remote_value() def set_request_timeout(self, timeout): """ Change request timeout """ self._timeout = timeout def run(self): """ Create instance of the wrapped class and execute operations on it as requested by the parent process. """ self._instance = self._cls(*self._args, **self._kwargs) while True: try: rv = None # get request from the parent process (op, path, args, kwargs) = self._pipe[RemoteClass.PIPE_CHILD].recv() args = self._deserialize(args) kwargs = self._deserialize(kwargs) path = path.split('.') if path else [] if op == RemoteClass.GET: rv = self._get_local_value(path) elif op == RemoteClass.CALL: rv = self._call_local_method(path, *args, **kwargs) elif op == RemoteClass.SETATTR and 'value' in kwargs: self._set_local_attr(path, kwargs['value']) elif op == RemoteClass.REPR: rv = self._get_local_repr(path) elif op == RemoteClass.STR: rv = self._get_local_str(path) elif op == RemoteClass.QUIT: break else: continue # send return value if not self._serializable(rv): rv = self._make_serializable(rv) self._pipe[RemoteClass.PIPE_CHILD].send(rv) except EOFError: break self._instance = None # destroy the instance @unittest.skip("Remote Vpp Test Case Class") class RemoteVppTestCase(VppTestCase): """ Re-use VppTestCase to create remote VPP segment In your test case: @classmethod def setUpClass(cls): # fork new process before clinet connects to VPP cls.remote_test = RemoteClass(RemoteVppTestCase) # start remote process cls.remote_test.start_remote() # set up your test case super(MyTestCase, cls).setUpClass() # set up remote test cls.remote_test.setUpClass(cls.tempdir) @classmethod def tearDownClass(cls): # tear down remote test cls.remote_test.tearDownClass() # stop remote process cls.remote_test.quit_remote() # tear down your test case super(MyTestCase, cls).tearDownClass() """ def __init__(self): super(RemoteVppTestCase, self).__init__("emptyTest") def __del__(self): if hasattr(self, "vpp"): cls.vpp.poll() if cls.vpp.returncode is None: cls.vpp.terminate() cls.vpp.communicate() @classmethod def setUpClass(cls, tempdir): # disable features unsupported in remote VPP orig_env = dict(os.environ) if 'STEP' in os.environ: del os.environ['STEP'] if 'DEBUG' in os.environ: del os.environ['DEBUG'] cls.tempdir_prefix = os.path.basename(tempdir) + "/" super(RemoteVppTestCase, cls).setUpClass() os.environ = orig_env @unittest.skip("Empty test") def emptyTest(self): """ Do nothing """ pass def setTestFunctionInfo(self, name, doc): """ Store the name and documentation string of currently executed test in the main VPP for logging purposes. """ self._testMethodName = name self._testMethodDoc = doc