tor-browser

The Tor Browser
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test_mutex.cpp (2035B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
      2 * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
      3 * This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "storage_test_harness.h"
      8 
      9 #include "SQLiteMutex.h"
     10 
     11 using namespace mozilla;
     12 using namespace mozilla::storage;
     13 
     14 /**
     15 * This file test our sqlite3_mutex wrapper in SQLiteMutex.h.
     16 */
     17 
     18 TEST(storage_mutex, AutoLock)
     19 {
     20  int lockTypes[] = {
     21      SQLITE_MUTEX_FAST,
     22      SQLITE_MUTEX_RECURSIVE,
     23  };
     24  for (int lockType : lockTypes) {
     25    // Get our test mutex (we have to allocate a SQLite mutex of the right type
     26    // too!).
     27    SQLiteMutex mutex("TestMutex");
     28    sqlite3_mutex* inner = sqlite3_mutex_alloc(lockType);
     29    do_check_true(inner);
     30    mutex.initWithMutex(inner);
     31 
     32    // And test that our automatic locking wrapper works as expected.
     33    mutex.assertNotCurrentThreadOwns();
     34    {
     35      SQLiteMutexAutoLock lockedScope(mutex);
     36      mutex.assertCurrentThreadOwns();
     37    }
     38    mutex.assertNotCurrentThreadOwns();
     39 
     40    // Free the wrapped mutex - we don't need it anymore.
     41    sqlite3_mutex_free(inner);
     42  }
     43 }
     44 
     45 TEST(storage_mutex, AutoUnlock)
     46 {
     47  int lockTypes[] = {
     48      SQLITE_MUTEX_FAST,
     49      SQLITE_MUTEX_RECURSIVE,
     50  };
     51  for (int lockType : lockTypes) {
     52    // Get our test mutex (we have to allocate a SQLite mutex of the right type
     53    // too!).
     54    SQLiteMutex mutex("TestMutex");
     55    sqlite3_mutex* inner = sqlite3_mutex_alloc(lockType);
     56    do_check_true(inner);
     57    mutex.initWithMutex(inner);
     58 
     59    // And test that our automatic unlocking wrapper works as expected.
     60    {
     61      SQLiteMutexAutoLock lockedScope(mutex);
     62 
     63      {
     64        SQLiteMutexAutoUnlock unlockedScope(mutex);
     65        mutex.assertNotCurrentThreadOwns();
     66      }
     67      mutex.assertCurrentThreadOwns();
     68    }
     69 
     70    // Free the wrapped mutex - we don't need it anymore.
     71    sqlite3_mutex_free(inner);
     72  }
     73 }