fix FutexTest

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

diff --git a/folly/test/FutexTest.cpp b/folly/test/FutexTest.cpp
index 36d11f8e28fe9841320ea01a3325f412b1d9d1c5..b64238b6274db2e8702509574f76805899b967dd 100644 (file)
--- a/folly/test/FutexTest.cpp
+++ b/folly/test/FutexTest.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.
@@ -23,9 +23,9 @@
 #include <thread>
 
 #include <glog/logging.h>
-#include <gtest/gtest.h>
 
 #include <folly/portability/Time.h>
+#include <folly/portability/GTest.h>
 
 using namespace folly::detail;
 using namespace folly::test;
@@ -182,6 +182,23 @@ void run_steady_clock_test() {
   EXPECT_TRUE(A <= B && B <= C);
 }
 
+template <template <typename> class Atom>
+void run_wake_blocked_test() {
+  for (auto delay = std::chrono::milliseconds(1);; delay *= 2) {
+    bool success = false;
+    Futex<Atom> f(0);
+    auto thr = DSched::thread([&] { success = f.futexWait(0); });
+    /* sleep override */ std::this_thread::sleep_for(delay);
+    f.store(1);
+    f.futexWake(1);
+    DSched::join(thr);
+    LOG(INFO) << "delay=" << delay.count() << "_ms, success=" << success;
+    if (success) {
+      break;
+    }
+  }
+}
+
 TEST(Futex, clock_source) {
   run_system_clock_test();
 
@@ -207,3 +224,11 @@ TEST(Futex, basic_deterministic) {
   run_basic_tests<DeterministicAtomic>();
   run_wait_until_tests<DeterministicAtomic>();
 }
+
+TEST(Futex, wake_blocked_live) {
+  run_wake_blocked_test<std::atomic>();
+}
+
+TEST(Futex, wake_blocked_emulated) {
+  run_wake_blocked_test<EmulatedFutexAtomic>();
+}