/*
- * Copyright 2015 Facebook, Inc.
+ * Copyright 2016 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <dlfcn.h>
#include <sys/types.h>
#include <sys/wait.h>
-#include <unistd.h>
#include <array>
#include <atomic>
#include <thread>
#include <unordered_map>
-#include <boost/thread/tss.hpp>
-#include <gflags/gflags.h>
#include <glog/logging.h>
#include <gtest/gtest.h>
-#include <folly/Benchmark.h>
#include <folly/Baton.h>
+#include <folly/Memory.h>
+#include <folly/experimental/io/FsUtil.h>
+#include <folly/portability/Unistd.h>
using namespace folly;
}
static void customDeleter(Widget* w, TLPDestructionMode mode) {
- totalVal_ += (mode == TLPDestructionMode::ALL_THREADS) * 1000;
+ totalVal_ += (mode == TLPDestructionMode::ALL_THREADS) ? 1000 : 1;
delete w;
}
};
w.reset(new Widget(), Widget::customDeleter);
w.get()->val_ += 10;
}).join();
+ EXPECT_EQ(11, Widget::totalVal_);
+ }
+ EXPECT_EQ(11, Widget::totalVal_);
+}
+
+TEST(ThreadLocalPtr, CustomDeleterOwnershipTransfer) {
+ Widget::totalVal_ = 0;
+ {
+ ThreadLocalPtr<Widget> w;
+ auto deleter = [](Widget* ptr) {
+ Widget::customDeleter(ptr, TLPDestructionMode::THIS_THREAD);
+ };
+ std::unique_ptr<Widget, typeof(deleter)> source(new Widget(), deleter);
+ std::thread([&w, &source]() {
+ w.reset(std::move(source));
+ w.get()->val_ += 10;
+ }).join();
+ EXPECT_EQ(11, Widget::totalVal_);
+ }
+ EXPECT_EQ(11, Widget::totalVal_);
+}
+
+TEST(ThreadLocalPtr, DefaultDeleterOwnershipTransfer) {
+ Widget::totalVal_ = 0;
+ {
+ ThreadLocalPtr<Widget> w;
+ auto source = folly::make_unique<Widget>();
+ std::thread([&w, &source]() {
+ w.reset(std::move(source));
+ w.get()->val_ += 10;
+ }).join();
EXPECT_EQ(10, Widget::totalVal_);
}
EXPECT_EQ(10, Widget::totalVal_);
ThreadLocalPtr<int> tl;
std::thread([&] {
- tl.reset(new int(1), [&] (int* ptr, TLPDestructionMode mode) {
- delete ptr;
- // This test ensures Widgets allocated here are not leaked.
- ++w.get()->val_;
- ThreadLocal<Widget> wl;
- ++wl.get()->val_;
- });
- }).join();
+ tl.reset(new int(1),
+ [&](int* ptr, TLPDestructionMode /* mode */) {
+ delete ptr;
+ // This test ensures Widgets allocated here are not leaked.
+ ++w.get()->val_;
+ ThreadLocal<Widget> wl;
+ ++wl.get()->val_;
+ });
+ }).join();
EXPECT_EQ(2, Widget::totalVal_);
}
}
}
-TEST(ThreadLocal, SharedLibrary)
-{
- auto handle = dlopen("./_bin/folly/test/lib_thread_local_test.so",
- RTLD_LAZY);
+TEST(ThreadLocal, SharedLibrary) {
+ auto exe = fs::executable_path();
+ auto lib = exe.parent_path() / "lib_thread_local_test.so";
+ auto handle = dlopen(lib.string().c_str(), RTLD_LAZY);
EXPECT_NE(nullptr, handle);
typedef void (*useA_t)();
t2.join();
}
-// clang is unable to compile this code unless in c++14 mode.
-#if __cplusplus >= 201402L
-namespace {
-// This will fail to compile unless ThreadLocal{Ptr} has a constexpr
-// default constructor. This ensures that ThreadLocal is safe to use in
-// static constructors without worrying about initialization order
-class ConstexprThreadLocalCompile {
- ThreadLocal<int> a_;
- ThreadLocalPtr<int> b_;
-
- constexpr ConstexprThreadLocalCompile() {}
+namespace folly { namespace threadlocal_detail {
+struct PthreadKeyUnregisterTester {
+ PthreadKeyUnregister p;
+ constexpr PthreadKeyUnregisterTester() = default;
};
-}
-#endif
-
-// Simple reference implementation using pthread_get_specific
-template<typename T>
-class PThreadGetSpecific {
- public:
- PThreadGetSpecific() : key_(0) {
- pthread_key_create(&key_, OnThreadExit);
- }
+}}
- T* get() const {
- return static_cast<T*>(pthread_getspecific(key_));
- }
-
- void reset(T* t) {
- delete get();
- pthread_setspecific(key_, t);
- }
- static void OnThreadExit(void* obj) {
- delete static_cast<T*>(obj);
- }
- private:
- pthread_key_t key_;
-};
-
-DEFINE_int32(numThreads, 8, "Number simultaneous threads for benchmarks.");
-
-#define REG(var) \
- BENCHMARK(FB_CONCATENATE(BM_mt_, var), iters) { \
- const int itersPerThread = iters / FLAGS_numThreads; \
- std::vector<std::thread> threads; \
- for (int i = 0; i < FLAGS_numThreads; ++i) { \
- threads.push_back(std::thread([&]() { \
- var.reset(new int(0)); \
- for (int i = 0; i < itersPerThread; ++i) { \
- ++(*var.get()); \
- } \
- })); \
- } \
- for (auto& t : threads) { \
- t.join(); \
- } \
- }
-
-ThreadLocalPtr<int> tlp;
-REG(tlp);
-PThreadGetSpecific<int> pthread_get_specific;
-REG(pthread_get_specific);
-boost::thread_specific_ptr<int> boost_tsp;
-REG(boost_tsp);
-BENCHMARK_DRAW_LINE();
-
-int main(int argc, char** argv) {
- testing::InitGoogleTest(&argc, argv);
- gflags::ParseCommandLineFlags(&argc, &argv, true);
- gflags::SetCommandLineOptionWithMode(
- "bm_max_iters", "100000000", gflags::SET_FLAG_IF_DEFAULT
- );
- if (FLAGS_benchmark) {
- folly::runBenchmarks();
- }
- return RUN_ALL_TESTS();
+TEST(ThreadLocal, UnregisterClassHasConstExprCtor) {
+ folly::threadlocal_detail::PthreadKeyUnregisterTester x;
+ // yep!
+ SUCCEED();
}
-
-/*
-Ran with 24 threads on dual 12-core Xeon(R) X5650 @ 2.67GHz with 12-MB caches
-
-Benchmark Iters Total t t/iter iter/sec
-------------------------------------------------------------------------------
-* BM_mt_tlp 100000000 39.88 ms 398.8 ps 2.335 G
- +5.91% BM_mt_pthread_get_specific 100000000 42.23 ms 422.3 ps 2.205 G
- + 295% BM_mt_boost_tsp 100000000 157.8 ms 1.578 ns 604.5 M
-------------------------------------------------------------------------------
-*/
projects / folly.git / blobdiff