folly/test/ThreadNameTest.cpp

   1 /*
   2  * Copyright 2017 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 #include <thread>
  18
  19 #include <folly/Baton.h>
  20 #include <folly/ScopeGuard.h>
  21 #include <folly/ThreadName.h>
  22 #include <folly/portability/GTest.h>
  23
  24 using namespace std;
  25 using namespace folly;
  26
  27 static bool expectedSetOtherThreadNameResult = folly::canSetOtherThreadName();
  28 static bool expectedSetSelfThreadNameResult = folly::canSetCurrentThreadName();
  29
  30 TEST(ThreadName, getCurrentThreadName) {
  31   static constexpr StringPiece kThreadName{"rockin-thread"};
  32   thread th([] {
  33     EXPECT_EQ(expectedSetSelfThreadNameResult, setThreadName(kThreadName));
  34     if (expectedSetSelfThreadNameResult) {
  35       EXPECT_EQ(kThreadName.toString(), getCurrentThreadName().value());
  36     }
  37   });
  38   SCOPE_EXIT { th.join(); };
  39 }
  40
  41 TEST(ThreadName, setThreadName_self) {
  42   thread th([] {
  43     EXPECT_EQ(expectedSetSelfThreadNameResult, setThreadName("rockin-thread"));
  44   });
  45   SCOPE_EXIT { th.join(); };
  46 }
  47
  48 TEST(ThreadName, setThreadName_other_pthread) {
  49   Baton<> handle_set;
  50   Baton<> let_thread_end;
  51   pthread_t handle;
  52   thread th([&] {
  53       handle = pthread_self();
  54       handle_set.post();
  55       let_thread_end.wait();
  56   });
  57   SCOPE_EXIT { th.join(); };
  58   handle_set.wait();
  59   SCOPE_EXIT { let_thread_end.post(); };
  60   EXPECT_EQ(
  61       expectedSetOtherThreadNameResult, setThreadName(handle, "rockin-thread"));
  62 }
  63
  64 TEST(ThreadName, setThreadName_other_native) {
  65   Baton<> let_thread_end;
  66   thread th([&] {
  67       let_thread_end.wait();
  68   });
  69   SCOPE_EXIT { th.join(); };
  70   SCOPE_EXIT { let_thread_end.post(); };
  71   EXPECT_EQ(
  72       expectedSetOtherThreadNameResult,
  73       setThreadName(th.native_handle(), "rockin-thread"));
  74 }
  75
  76 TEST(ThreadName, setThreadName_other_id) {
  77   Baton<> let_thread_end;
  78   thread th([&] {
  79       let_thread_end.wait();
  80   });
  81   SCOPE_EXIT { th.join(); };
  82   SCOPE_EXIT { let_thread_end.post(); };
  83   EXPECT_EQ(
  84       expectedSetOtherThreadNameResult,
  85       setThreadName(th.get_id(), "rockin-thread"));
  86 }