Line data    Source code

       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
      13             : //       contributors may be used to endorse or promote products derived
      14             : //       from this software without specific prior written permission.
      15             : //
      16             : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      17             : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      18             : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      19             : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      20             : // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      21             : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      22             : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      23             : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      24             : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      25             : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      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         500 : class ThreadIdValidationThread : public v8::base::Thread {
      35             :  public:
      36             :   ThreadIdValidationThread(v8::base::Thread* thread_to_start,
      37             :                            std::vector<i::ThreadId>* refs,
      38             :                            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         500 :         semaphore_(semaphore) {}
      45             : 
      46         500 :   void Run() override {
      47         500 :     i::ThreadId thread_id = i::ThreadId::Current();
      48       25250 :     for (int i = 0; i < thread_no_; i++) {
      49       50000 :       CHECK(!(*refs_)[i].Equals(thread_id));
      50             :     }
      51         500 :     CHECK(thread_id.IsValid());
      52        1000 :     (*refs_)[thread_no_] = thread_id;
      53         500 :     if (thread_to_start_ != nullptr) {
      54         495 :       thread_to_start_->Start();
      55             :     }
      56         500 :     semaphore_->Signal();
      57         500 :   }
      58             : 
      59             :  private:
      60             :   std::vector<i::ThreadId>* refs_;
      61             :   int thread_no_;
      62             :   v8::base::Thread* thread_to_start_;
      63             :   v8::base::Semaphore* semaphore_;
      64             : };
      65             : 
      66             : 
      67       28342 : TEST(ThreadIdValidation) {
      68             :   const int kNThreads = 100;
      69             :   std::vector<ThreadIdValidationThread*> threads;
      70             :   std::vector<i::ThreadId> refs;
      71           5 :   threads.reserve(kNThreads);
      72           5 :   refs.reserve(kNThreads);
      73          10 :   v8::base::Semaphore semaphore(0);
      74             :   ThreadIdValidationThread* prev = nullptr;
      75         505 :   for (int i = kNThreads - 1; i >= 0; i--) {
      76             :     ThreadIdValidationThread* newThread =
      77        1000 :         new ThreadIdValidationThread(prev, &refs, i, &semaphore);
      78         500 :     threads.push_back(newThread);
      79         500 :     prev = newThread;
      80        1000 :     refs.push_back(i::ThreadId::Invalid());
      81             :   }
      82           5 :   prev->Start();
      83         505 :   for (int i = 0; i < kNThreads; i++) {
      84         500 :     semaphore.Wait();
      85             :   }
      86         500 :   for (int i = 0; i < kNThreads; i++) {
      87        1000 :     delete threads[i];
      88             :   }
      89       85016 : }