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[oota-llvm.git] / unittests / Support / ManagedStatic.cpp
1 //===- llvm/unittest/Support/ManagedStatic.cpp - ManagedStatic tests ------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 #include "llvm/Support/ManagedStatic.h"
10 #include "llvm/Config/config.h"
11 #include "llvm/Support/Threading.h"
12 #ifdef HAVE_PTHREAD_H
13 #include <pthread.h>
14 #endif
15
16 #include "gtest/gtest.h"
17
18 using namespace llvm;
19
20 namespace {
21
22 #ifdef HAVE_PTHREAD_H
23 namespace test1 {
24   llvm::ManagedStatic<int> ms;
25   void *helper(void*) {
26     *ms;
27     return NULL;
28   }
29 }
30
31 TEST(Initialize, MultipleThreads) {
32   // Run this test under tsan: http://code.google.com/p/data-race-test/
33
34   llvm_start_multithreaded();
35   pthread_t t1, t2;
36   pthread_create(&t1, NULL, test1::helper, NULL);
37   pthread_create(&t2, NULL, test1::helper, NULL);
38   pthread_join(t1, NULL);
39   pthread_join(t2, NULL);
40   llvm_stop_multithreaded();
41 }
42 #endif
43
44 } // anonymous namespace