Merge "Export of internal Abseil changes"

1 files changed, 43 insertions, 0 deletions

diff --git a/absl/status/status_payload_printer.cc b/absl/status/status_payload_printer.cc
new file mode 100644
index 000000000000..ad96d76acf49
--- /dev/null
+++ b/absl/status/status_payload_printer.cc
@@ -0,0 +1,43 @@
+// Copyright 2019 The Abseil Authors.
+//
+// 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
+//
+//      https://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 "absl/status/status_payload_printer.h"
+
+#include <atomic>
+
+#include "absl/base/attributes.h"
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+namespace status_internal {
+
+namespace {
+// Tried constant initialized global variable but it doesn't work with Lexan
+// (MSVC's `std::atomic` has trouble constant initializing).
+std::atomic<StatusPayloadPrinter>& GetStatusPayloadPrinterStorage() {
+  ABSL_CONST_INIT static std::atomic<StatusPayloadPrinter> instance{nullptr};
+  return instance;
+}
+}  // namespace
+
+void SetStatusPayloadPrinter(StatusPayloadPrinter printer) {
+  GetStatusPayloadPrinterStorage().store(printer, std::memory_order_relaxed);
+}
+
+StatusPayloadPrinter GetStatusPayloadPrinter() {
+  return GetStatusPayloadPrinterStorage().load(std::memory_order_relaxed);
+}
+
+}  // namespace status_internal
+ABSL_NAMESPACE_END
+}  // namespace absl