Esempio n. 1
0
/*
 * Check that we don't invalid iterators by removing descriptors during an
 * on_Write callback.
 */
void SelectServerTest::testRemoveOthersWhenWriteable() {
  Descriptors read_set, write_set, delete_set;
  LoopbackDescriptor loopback1, loopback2, loopback3;
  loopback1.Init();
  loopback2.Init();
  loopback3.Init();

  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(&loopback1));
  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(&loopback2));
  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(&loopback3));

  write_set.insert(&loopback1);
  write_set.insert(&loopback2);
  write_set.insert(&loopback3);

  loopback1.SetOnWritable(NewCallback(
      this, &SelectServerTest::NullHandler));
  loopback2.SetOnWritable(NewCallback(
      this,
      &SelectServerTest::RemoveAndDeleteDescriptors,
      read_set, write_set, delete_set));

  loopback3.SetOnWritable(NewCallback(
      this, &SelectServerTest::NullHandler));

  OLA_ASSERT_EQ(3, write_descriptor_count->Get());
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());

  m_ss->Run();

  OLA_ASSERT_EQ(0, write_descriptor_count->Get());
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
}
Esempio n. 2
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/*
 * Confirm we don't leak memory when the SelectServer is destroyed without all
 * the descriptors being removed.
 */
void SelectServerTest::testShutdownWithActiveDescriptors() {
  LoopbackDescriptor loopback_socket;
  loopback_socket.Init();

  OLA_ASSERT_TRUE(m_ss->AddReadDescriptor(&loopback_socket));
  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(&loopback_socket));
}
Esempio n. 3
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/*
 * Confirm we can't add the same descriptor twice.
 */
void SelectServerTest::testDoubleAddAndRemove() {
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());  // internal socket
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, write_descriptor_count->Get());

  LoopbackDescriptor loopback_socket;
  loopback_socket.Init();

  OLA_ASSERT_TRUE(m_ss->AddReadDescriptor(&loopback_socket));
  OLA_ASSERT_EQ(2, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, write_descriptor_count->Get());

  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(&loopback_socket));
  OLA_ASSERT_EQ(2, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  OLA_ASSERT_EQ(1, write_descriptor_count->Get());

  m_ss->RemoveReadDescriptor(&loopback_socket);
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  OLA_ASSERT_EQ(1, write_descriptor_count->Get());

  m_ss->RemoveWriteDescriptor(&loopback_socket);
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, write_descriptor_count->Get());

  // Trying to remove a second time shouldn't crash
  m_ss->RemoveReadDescriptor(&loopback_socket);
  m_ss->RemoveWriteDescriptor(&loopback_socket);
}
Esempio n. 4
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/*
 * Check that RemoveWriteDescriptor is reentrant.
 * Similar to the case above, but this removes & deletes the descriptor from
 * within the OnRead callback of the same descriptor.
 */
void SelectServerTest::testRemoveWriteWhenReadable() {
  // Ownership is transferred to the SelectServer.
  LoopbackDescriptor *loopback = new LoopbackDescriptor();
  loopback->Init();

  loopback->SetOnData(NewCallback(
      this, &SelectServerTest::ReadDataAndRemove,
      static_cast<ConnectedDescriptor*>(loopback)));
  loopback->SetOnWritable(NewCallback(this, &SelectServerTest::NullHandler));

  OLA_ASSERT_TRUE(m_ss->AddReadDescriptor(loopback));
  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(loopback));
  OLA_ASSERT_EQ(2, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(1, write_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());

  // Send some data to make this descriptor readable.
  uint8_t data[] = {'a'};
  loopback->Send(data, arraysize(data));

  m_ss->Run();
  OLA_ASSERT_EQ(0, write_descriptor_count->Get());
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
}
Esempio n. 5
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/*
 * Confirm we can't add invalid descriptors to the SelectServer
 */
void SelectServerTest::testAddInvalidDescriptor() {
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());  // internal socket
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, write_descriptor_count->Get());

  // Adding and removing a uninitialized socket should fail
  LoopbackDescriptor bad_socket;
  OLA_ASSERT_FALSE(m_ss->AddReadDescriptor(&bad_socket));
  OLA_ASSERT_FALSE(m_ss->AddWriteDescriptor(&bad_socket));
  m_ss->RemoveReadDescriptor(&bad_socket);
  m_ss->RemoveWriteDescriptor(&bad_socket);

  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());  // internal socket
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, write_descriptor_count->Get());
}
Esempio n. 6
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/*
 * Test the interaction between read and write descriptor.
 */
void SelectServerTest::testReadWriteInteraction() {
  UnixSocket socket;
  socket.Init();
  socket.SetOnClose(NewSingleCallback(this, &SelectServerTest::Terminate));

  OLA_ASSERT_TRUE(m_ss->AddReadDescriptor(&socket));
  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(&socket));
  m_ss->RemoveWriteDescriptor(&socket);

  // now the Write end closes
  auto_ptr<UnixSocket> other_end(socket.OppositeEnd());
  other_end->CloseClient();

  m_ss->RegisterSingleTimeout(
      100, ola::NewSingleCallback(this, &SelectServerTest::FatalTimeout));
  m_ss->Run();
  m_ss->RemoveReadDescriptor(&socket);
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
}
Esempio n. 7
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/*
 * Check that RemoveWriteDescriptor is reentrant.
 * We use the Execute() method to close a write descriptor during the same
 * cycle in which it becomes writeable. See
 * https://github.com/OpenLightingProject/ola/pull/429 for details.
 */
void SelectServerTest::testRemoveWriteWhenOtherReadable() {
  Descriptors read_set, write_set, delete_set;
  LoopbackDescriptor *loopback = new LoopbackDescriptor();
  loopback->Init();
  loopback->SetOnWritable(NewCallback(this, &SelectServerTest::NullHandler));

  write_set.insert(loopback);
  delete_set.insert(loopback);

  OLA_ASSERT_TRUE(m_ss->AddWriteDescriptor(loopback));
  OLA_ASSERT_EQ(1, write_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
  m_ss->Execute(NewSingleCallback(
      this, &SelectServerTest::RemoveAndDeleteDescriptors,
      read_set, write_set, delete_set));

  m_ss->Run();
  OLA_ASSERT_EQ(0, write_descriptor_count->Get());
  OLA_ASSERT_EQ(1, connected_read_descriptor_count->Get());
  OLA_ASSERT_EQ(0, read_descriptor_count->Get());
}