Use LockFile/UnlockFile for Settings to port to Windows

util/misc/uuid.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.
 
 #if !defined(__STDC_FORMAT_MACROS)
 #define __STDC_FORMAT_MACROS
 #endif
 
 #include "util/misc/uuid.h"
 
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
 
 #include "base/basictypes.h"
+#include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/sys_byteorder.h"
 #include "util/stdlib/cxx.h"
 
+#if defined(OS_MACOSX)
+#include <uuid/uuid.h>
+#endif  // OS_MACOSX
+
 #if CXX_LIBRARY_VERSION >= 2011
 #include <type_traits>
 #endif
 
 namespace crashpad {
 
 static_assert(sizeof(UUID) == 16, "UUID must be 16 bytes");
 
 #if CXX_LIBRARY_VERSION >= 2011
 static_assert(std::is_standard_layout<UUID>::value,
               "UUID must be standard layout");
 #endif
 
 UUID::UUID() : data_1(0), data_2(0), data_3(0), data_4(), data_5() {
 }
 
+UUID::UUID(InitializeWithNewTag) {
+  CHECK(InitializeWithNew());
+}
+
 UUID::UUID(const uint8_t* bytes) {
   InitializeFromBytes(bytes);
 }
 
 bool UUID::operator==(const UUID& that) const {
   return memcmp(this, &that, sizeof(UUID)) == 0;
 }
 
 void UUID::InitializeFromBytes(const uint8_t* bytes) {
   memcpy(this, bytes, sizeof(*this));
@@ skipping 24 matching lines @@
                   &temp.data_5[3],
                   &temp.data_5[4],
                   &temp.data_5[5]);
   if (rv != 11)
     return false;
 
   *this = temp;
   return true;
 }
 
+bool UUID::InitializeWithNew() {
+#if defined(OS_MACOSX)
+  uuid_t uuid;
+  uuid_generate(uuid);
+  InitializeFromBytes(uuid);
+  return true;
+#elif defined(OS_WIN)
+  ::UUID system_uuid;
+  if (UuidCreate(&system_uuid) != RPC_S_OK) {
+    LOG(ERROR) << "UuidCreate";
+    return false;
+  }
+  InitializeFromSystemUUID(&system_uuid);
+  return true;
+#else
+#error Port.
+#endif  // OS_MACOSX
+}
+
 #if defined(OS_WIN)
 void UUID::InitializeFromSystemUUID(const ::UUID* system_uuid) {
   static_assert(sizeof(::UUID) == sizeof(UUID),
                 "unexpected system uuid size");
   static_assert(offsetof(::UUID, Data1) == offsetof(UUID, data_1),
                 "unexpected system uuid layout");
   memcpy(this, system_uuid, sizeof(::UUID));
 }
 #endif  // OS_WIN
 
@@ skipping 12 matching lines @@
                             data_5[5]);
 }
 
 #if defined(OS_WIN)
 base::string16 UUID::ToString16() const {
   return base::UTF8ToUTF16(ToString());
 }
 #endif  // OS_WIN
 
 }  // namespace crashpad