Add MachMessageWithDeadline() and supporting characters

util/mach/mach_message_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/mach_message.h"
 
 #include "base/basictypes.h"
 #include "gtest/gtest.h"
 #include "util/mach/mach_extensions.h"
 
 namespace crashpad {
 namespace test {
 namespace {
 
+TEST(MachMessage, MachMessageDeadlineFromTimeout) {
+  MachMessageDeadline deadline_0 = MachMessageDeadlineFromTimeout(0);
+  EXPECT_EQ(kMachMessageNonblocking, deadline_0);
+
+  deadline_0 = MachMessageDeadlineFromTimeout(1);
+  MachMessageDeadline deadline_1 = MachMessageDeadlineFromTimeout(100);
+
+  EXPECT_NE(kMachMessageNonblocking, deadline_0);
+  EXPECT_NE(kMachMessageWaitIndefinitely, deadline_0);
+  EXPECT_NE(kMachMessageNonblocking, deadline_1);
+  EXPECT_NE(kMachMessageWaitIndefinitely, deadline_1);
+  EXPECT_GE(deadline_1, deadline_0);
+}
+
 TEST(MachMessage, PrepareMIGReplyFromRequest_SetMIGReplyError) {
   mach_msg_header_t request;
   request.msgh_bits =
       MACH_MSGH_BITS_COMPLEX |
       MACH_MSGH_BITS(MACH_MSG_TYPE_PORT_SEND_ONCE, MACH_MSG_TYPE_PORT_SEND);
   request.msgh_size = 64;
   request.msgh_remote_port = 0x01234567;
   request.msgh_local_port = 0x89abcdef;
   request.msgh_reserved = 0xa5a5a5a5;
   request.msgh_id = 1011;
@@ skipping 46 matching lines @@
   };
 
   TestMessage test;
   test.send.msgh_size = sizeof(TestSendMessage);
   EXPECT_EQ(&test.receive.trailer, MachMessageTrailerFromHeader(&test.receive));
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad