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[folly.git] / folly / test / AtomicHashMapTest.cpp

diff --git a/folly/test/AtomicHashMapTest.cpp b/folly/test/AtomicHashMapTest.cpp
index a8c6dff220e593268e9bd9784fa11687273b7e72..ee2968db715a242081aa633ca8fab7e078592c9f 100644 (file)
--- a/folly/test/AtomicHashMapTest.cpp
+++ b/folly/test/AtomicHashMapTest.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Facebook, Inc.
+ * Copyright 2017 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,13 +16,15 @@
 
 #include <folly/AtomicHashMap.h>
 
-#include <glog/logging.h>
-#include <gtest/gtest.h>
-#include <thread>
 #include <atomic>
 #include <memory>
+#include <thread>
+
+#include <glog/logging.h>
+
 #include <folly/Benchmark.h>
 #include <folly/Conv.h>
+#include <folly/portability/GTest.h>
 #include <folly/portability/SysTime.h>
 
 using std::vector;
@@ -402,7 +404,7 @@ namespace {
 inline KeyT randomizeKey(int key) {
   // We deterministically randomize the key to more accurately simulate
   // real-world usage, and to avoid pathalogical performance patterns (e.g.
-  // those related to __gnu_cxx::hash<int64_t>()(1) == 1).
+  // those related to std::hash<int64_t>()(1) == 1).
   //
   // Use a hash function we don't normally use for ints to avoid interactions.
   return folly::hash::jenkins_rev_mix32(key);
@@ -438,28 +440,28 @@ void* insertThreadArr(void* jj) {
 }
 
 std::atomic<bool> runThreadsCreatedAllThreads;
-void runThreads(void *(*thread)(void*), int numThreads, void **statuses) {
+void runThreads(void *(*mainFunc)(void*), int numThreads, void **statuses) {
   folly::BenchmarkSuspender susp;
   runThreadsCreatedAllThreads.store(false);
-  vector<pthread_t> threadIds;
+  vector<std::thread> threads;
   for (int64_t j = 0; j < numThreads; j++) {
-    pthread_t tid;
-    if (pthread_create(&tid, nullptr, thread, (void*) j) != 0) {
-       LOG(ERROR) << "Could not start thread";
-    } else {
-      threadIds.push_back(tid);
-    }
+    threads.emplace_back([statuses, mainFunc, j]() {
+      auto ret = mainFunc((void*)j);
+      if (statuses != nullptr) {
+        statuses[j] = ret;
+      }
+    });
   }
   susp.dismiss();
 
   runThreadsCreatedAllThreads.store(true);
-  for (size_t i = 0; i < threadIds.size(); ++i) {
-    pthread_join(threadIds[i], statuses == nullptr ? nullptr : &statuses[i]);
+  for (size_t i = 0; i < threads.size(); ++i) {
+    threads[i].join();
   }
 }
 
-void runThreads(void *(*thread)(void*)) {
-  runThreads(thread, FLAGS_numThreads, nullptr);
+void runThreads(void *(*mainFunc)(void*)) {
+  runThreads(mainFunc, FLAGS_numThreads, nullptr);
 }
 
 }
@@ -677,17 +679,18 @@ void* atomicHashArrayInsertRaceThread(void* /* j */) {
       numInserted++;
     }
   }
-  pthread_exit((void *) numInserted);
+  return (void*)numInserted;
 }
 TEST(Ahm, atomic_hash_array_insert_race) {
   AHA* arr = atomicHashArrayInsertRaceArray.get();
-  int numIterations = 5000, FLAGS_numThreads = 4;
-  void* statuses[FLAGS_numThreads];
+  int numIterations = 5000;
+  constexpr int numThreads = 4;
+  void* statuses[numThreads];
   for (int i = 0; i < numIterations; i++) {
     arr->clear();
-    runThreads(atomicHashArrayInsertRaceThread, FLAGS_numThreads, statuses);
+    runThreads(atomicHashArrayInsertRaceThread, numThreads, statuses);
     EXPECT_GE(arr->size(), 1);
-    for (int j = 0; j < FLAGS_numThreads; j++) {
+    for (int j = 0; j < numThreads; j++) {
       EXPECT_EQ(arr->size(), uintptr_t(statuses[j]));
     }
   }