1/*
2 * Copyright 2017-present Facebook, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#pragma once
18
19#include <atomic>
20#include <string>
21#include <thread>
22
23#include <folly/Conv.h>
24#include <folly/Range.h>
25#include <folly/executors/thread_factory/ThreadFactory.h>
26#include <folly/system/ThreadName.h>
27
28namespace folly {
29
30class NamedThreadFactory : public ThreadFactory {
31 public:
32 explicit NamedThreadFactory(folly::StringPiece prefix)
33 : prefix_(prefix.str()), suffix_(0) {}
34
35 std::thread newThread(Func&& func) override {
36 auto name = folly::to<std::string>(prefix_, suffix_++);
37 return std::thread(
38 [func = std::move(func), name = std::move(name)]() mutable {
39 folly::setThreadName(name);
40 func();
41 });
42 }
43
44 void setNamePrefix(folly::StringPiece prefix) {
45 prefix_ = prefix.str();
46 }
47
48 std::string getNamePrefix() {
49 return prefix_;
50 }
51
52 private:
53 std::string prefix_;
54 std::atomic<uint64_t> suffix_;
55};
56
57} // namespace folly
58