1// Copyright 2008 the V8 project authors. All rights reserved.
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3// modification, are permitted provided that the following conditions are
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5//
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15//
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27
28#include "src/v8.h"
29#include "test/cctest/cctest.h"
30
31#include "src/base/platform/platform.h"
32#include "src/isolate.h"
33
34
35class ThreadIdValidationThread : public v8::base::Thread {
36 public:
37  ThreadIdValidationThread(v8::base::Thread* thread_to_start,
38                           i::List<i::ThreadId>* refs, unsigned int thread_no,
39                           v8::base::Semaphore* semaphore)
40      : Thread(Options("ThreadRefValidationThread")),
41        refs_(refs),
42        thread_no_(thread_no),
43        thread_to_start_(thread_to_start),
44        semaphore_(semaphore) {}
45
46  void Run() {
47    i::ThreadId thread_id = i::ThreadId::Current();
48    for (int i = 0; i < thread_no_; i++) {
49      CHECK(!(*refs_)[i].Equals(thread_id));
50    }
51    CHECK(thread_id.IsValid());
52    (*refs_)[thread_no_] = thread_id;
53    if (thread_to_start_ != NULL) {
54      thread_to_start_->Start();
55    }
56    semaphore_->Signal();
57  }
58
59 private:
60  i::List<i::ThreadId>* refs_;
61  int thread_no_;
62  v8::base::Thread* thread_to_start_;
63  v8::base::Semaphore* semaphore_;
64};
65
66
67TEST(ThreadIdValidation) {
68  const int kNThreads = 100;
69  i::List<ThreadIdValidationThread*> threads(kNThreads);
70  i::List<i::ThreadId> refs(kNThreads);
71  v8::base::Semaphore semaphore(0);
72  ThreadIdValidationThread* prev = NULL;
73  for (int i = kNThreads - 1; i >= 0; i--) {
74    ThreadIdValidationThread* newThread =
75        new ThreadIdValidationThread(prev, &refs, i, &semaphore);
76    threads.Add(newThread);
77    prev = newThread;
78    refs.Add(i::ThreadId::Invalid());
79  }
80  prev->Start();
81  for (int i = 0; i < kNThreads; i++) {
82    semaphore.Wait();
83  }
84  for (int i = 0; i < kNThreads; i++) {
85    delete threads[i];
86  }
87}
88