win: Add (currently unused) NTSTATUS_LOG

util/win/ntstatus_logging.cc

Index: util/win/ntstatus_logging.cc
diff --git a/util/win/ntstatus_logging.cc b/util/win/ntstatus_logging.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6a2abee0d3968fbd9c5ebc9f057cb4ca907606df
--- /dev/null
+++ b/util/win/ntstatus_logging.cc
@@ -0,0 +1,63 @@
+// Copyright 2015 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/win/ntstatus_logging.h"
+
+#include <string>
+
+#include "base/strings/stringprintf.h"
+
+namespace {
+
+std::string FormatNtstatus(DWORD ntstatus) {
+  char msgbuf[256];
+  DWORD len = FormatMessageA(
+      FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
+          FORMAT_MESSAGE_MAX_WIDTH_MASK | FORMAT_MESSAGE_FROM_HMODULE,
+      GetModuleHandle(L"ntdll.dll"),
+      ntstatus,
+      0,
+      msgbuf,
+      arraysize(msgbuf),
+      nullptr);
+  if (len) {
+    return msgbuf;
+  } else {
+    return base::StringPrintf("<failed to retrieve error message (0x%x)>",
+                              GetLastError());
+  }
+}
+
+}  // namespace
+
+namespace logging {
+
+NtstatusLogMessage::NtstatusLogMessage(const char* function,
+                                       const char* file_path,
+                                       int line,
+                                       LogSeverity severity,
+                                       DWORD ntstatus)
+    : LogMessage(
+#if defined(MINI_CHROMIUM_BASE_LOGGING_H_)
+        function,
+#endif
+        file_path, line, severity), ntstatus_(ntstatus) {
+}
+
+NtstatusLogMessage::~NtstatusLogMessage() {
+  stream() << ": " << FormatNtstatus(ntstatus_)
+           << base::StringPrintf(" (0x%08x)", ntstatus_);
+}
+
+}  // namespace logging