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Contents
// Copyright 2022 gRPC 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
//
// 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 <grpc/support/port_platform.h>
#include <stdint.h>
#include <atomic>
#include <string>
#include "src/core/lib/config/config_vars.h"
namespace grpc_core {
std::atomic<ConfigVars*> ConfigVars::config_vars_{nullptr};
const ConfigVars& ConfigVars::Load() {
// Called from get, so we know there's no existing config vars.
// We might race for them though.
auto vars = new ConfigVars({});
ConfigVars* expected = nullptr;
if (!config_vars_.compare_exchange_strong(expected, vars,
std::memory_order_acq_rel,
std::memory_order_acquire)) {
delete vars;
return *expected;
}
return *vars;
}
void ConfigVars::Reset() {
delete config_vars_.exchange(nullptr, std::memory_order_acq_rel);
}
void ConfigVars::SetOverrides(const Overrides& overrides) {
delete config_vars_.exchange(new ConfigVars(overrides),
std::memory_order_acq_rel);
}
} // namespace grpc_core
Version data entries
16 entries across 16 versions & 1 rubygems