1 // Copyright 2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
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15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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
35 class ThreadIdValidationThread : public v8::base::Thread {
36 public:
ThreadIdValidationThread(v8::base::Thread * thread_to_start,i::List<i::ThreadId> * refs,unsigned int thread_no,v8::base::Semaphore * semaphore)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
Run()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
TEST(ThreadIdValidation)67 TEST(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