Add exc_server_variants including UniversalMachExcServer and its test

util/mach/bootstrap_test.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // 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.
 
 #include "util/mach/bootstrap.h"
 
 #include <mach/mach.h>
 #include <servers/bootstrap.h>
 #include <string.h>
 
 #include <algorithm>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/mac/scoped_mach_port.h"
 #include "base/rand_util.h"
 #include "gtest/gtest.h"
+#include "util/mach/mach_extensions.h"
 #include "util/test/mac/mach_errors.h"
 
 namespace {
 
 using namespace crashpad;
 using namespace crashpad::test;
 using namespace testing;
 
 TEST(Bootstrap, BootstrapCheckIn) {
   std::string service_name = "com.googlecode.crashpad.test.bootstrap.";
   for (int index = 0; index < 16; ++index) {
     service_name.append(1, base::RandInt('A', 'Z'));
   }
 
   // The service shouldn’t be registered in the bootstrap namespace yet.
   mach_port_t client_port = MACH_PORT_NULL;
   kern_return_t kr =
       bootstrap_look_up(bootstrap_port, service_name.c_str(), &client_port);
   ASSERT_EQ(BOOTSTRAP_UNKNOWN_SERVICE, kr)
       << BootstrapErrorMessage(kr, "bootstrap_look_up");
 
   // Check in, getting a receive right.
   mach_port_t server_port;
   kr = BootstrapCheckIn(bootstrap_port, service_name.c_str(), &server_port);
   ASSERT_EQ(BOOTSTRAP_SUCCESS, kr)
       << BootstrapErrorMessage(kr, "bootstrap_check_in");
-  ASSERT_NE(static_cast<mach_port_t>(MACH_PORT_NULL), server_port);
+  ASSERT_NE(kMachPortNull, server_port);
   base::mac::ScopedMachReceiveRight server_port_owner(server_port);
 
   // A subsequent checkin attempt should fail.
   mach_port_t fail_port = MACH_PORT_NULL;
   kr = BootstrapCheckIn(bootstrap_port, service_name.c_str(), &fail_port);
   EXPECT_EQ(BOOTSTRAP_SERVICE_ACTIVE, kr);
-  EXPECT_EQ(static_cast<mach_port_t>(MACH_PORT_NULL), fail_port);
+  EXPECT_EQ(kMachPortNull, fail_port);
 
   // Look up the service, getting a send right.
   kr = bootstrap_look_up(bootstrap_port, service_name.c_str(), &client_port);
   ASSERT_EQ(BOOTSTRAP_SUCCESS, kr)
       << BootstrapErrorMessage(kr, "bootstrap_look_up");
   base::mac::ScopedMachSendRight client_port_owner(client_port);
-  EXPECT_NE(static_cast<mach_port_t>(MACH_PORT_NULL), client_port);
+  EXPECT_NE(kMachPortNull, client_port);
 
   // Have the “client” send a message to the “server”.
   struct SendMessage {
     mach_msg_header_t header;
     char data[64];
   };
   SendMessage send_message = {};
   send_message.header.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0);
   send_message.header.msgh_size = sizeof(send_message);
   send_message.header.msgh_remote_port = client_port;
@@ skipping 46 matching lines @@
 
   client_port_owner.reset();
   client_port = MACH_PORT_NULL;
 
   kr = bootstrap_look_up(bootstrap_port, service_name.c_str(), &client_port);
   ASSERT_EQ(BOOTSTRAP_UNKNOWN_SERVICE, kr)
       << BootstrapErrorMessage(kr, "bootstrap_look_up");
 }
 
 }  // namespace