base/logging.cc

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// Copyright 2010-2022 Google LLC
// 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 "ortools/base/logging.h"
 
#include <mutex>  // for std::call_once and std::once_flag.  // NOLINT
 
#include "absl/flags/flag.h"
#include "absl/flags/usage.h"
#include "absl/log/globals.h"
#include "absl/log/initialize.h"
 
ABSL_FLAG(bool, logtostderr, false, "no op compatibility flag");
 
namespace operations_research {
 
namespace {
std::once_flag init_done;
}  // namespace
 
void FixFlagsAndEnvironmentForSwig() {
  std::call_once(init_done, [] {
    absl::InitializeLog();
    absl::SetProgramUsageMessage("swig_helper");
  });
  absl::EnableLogPrefix(false);
}
 
void KeepAbslSymbols() {
  absl::SetFlag(&FLAGS_stderrthreshold, 0);
}
 
}  // namespace operations_research