text: /*
   * Copyright 2015 Facebook, Inc.
   *
   * 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.
   */
  
  #pragma once
  
  #include <atomic>
  #include <string>
  #include <thread>
  
  #include <folly/wangle/concurrent/ThreadFactory.h>
  #include <folly/Conv.h>
  #include <folly/Range.h>
  #include <folly/ThreadName.h>
  
  namespace folly { namespace wangle {
  
  class NamedThreadFactory : public ThreadFactory {
   public:
    explicit NamedThreadFactory(folly::StringPiece prefix)
      : prefix_(prefix.str()), suffix_(0) {}
  
    std::thread newThread(Func&& func) override {
      auto thread = std::thread(std::move(func));
      folly::setThreadName(
          thread.native_handle(),
          folly::to<std::string>(prefix_, suffix_++));
      return thread;
    }
  
    void setNamePrefix(folly::StringPiece prefix) {
      prefix_ = prefix.str();
    }
  
    std::string getNamePrefix() {
      return prefix_;
    }
  
   private:
    std::string prefix_;
    std::atomic<uint64_t> suffix_;
  };
  
  }} // folly::wangle
  