Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/C/Firefox/memory/volatile/tests/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 2 kB

Quelle TestVolatileBuffer.cpp Sprache: C

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "gtest/gtest.h"
#include "mozilla/VolatileBuffer.h"
#include <string.h>

#if defined(ANDROID)
#  include <fcntl.h>
#  include <linux/ashmem.h>
#  include <sys/ioctl.h>
#  include <sys/stat.h>
#  include <sys/types.h>
#elif defined(XP_DARWIN)
#  include <mach/mach.h>
#endif

using namespace mozilla;

TEST(VolatileBufferTest, HeapVolatileBuffersWork)
{
  RefPtr<VolatileBuffer> heapbuf = new VolatileBuffer();

  ASSERT_TRUE(heapbuf)
  << "Failed to create VolatileBuffer";
  ASSERT_TRUE(heapbuf->Init(512))
  << "Failed to initialize VolatileBuffer";

  VolatileBufferPtr<char> ptr(heapbuf);

  EXPECT_FALSE(ptr.WasBufferPurged())
      << "Buffer should not be purged immediately after initialization";
  EXPECT_TRUE(ptr) << "Couldn't get pointer from VolatileBufferPtr";
}

TEST(VolatileBufferTest, RealVolatileBuffersWork)
{
  RefPtr<VolatileBuffer> buf = new VolatileBuffer();

  ASSERT_TRUE(buf)
  << "Failed to create VolatileBuffer";
  ASSERT_TRUE(buf->Init(16384))
  << "Failed to initialize VolatileBuffer";

  const char teststr[] = "foobar";

  {
    VolatileBufferPtr<char> ptr(buf);

    EXPECT_FALSE(ptr.WasBufferPurged())
        << "Buffer should not be purged immediately after initialization";
    EXPECT_TRUE(ptr) << "Couldn't get pointer from VolatileBufferPtr";

    {
      VolatileBufferPtr<char> ptr2(buf);

      EXPECT_FALSE(ptr.WasBufferPurged())
          << "Failed to lock buffer again while currently locked";
      ASSERT_TRUE(ptr2)
      << "Didn't get a pointer on the second lock";

      strcpy(ptr2, teststr);
    }
  }

  {
    VolatileBufferPtr<char> ptr(buf);

    EXPECT_FALSE(ptr.WasBufferPurged())
        << "Buffer was immediately purged after unlock";
    EXPECT_STREQ(ptr, teststr) << "Buffer failed to retain data after unlock";
  }

  // Test purging if we know how to
#if defined(XP_DARWIN)
  int state;
  vm_purgable_control(mach_task_self(), (vm_address_t)NULL,
                      VM_PURGABLE_PURGE_ALL, &state);
#else
  return;
#endif

  EXPECT_GT(buf->NonHeapSizeOfExcludingThis(), 0ul)
      << "Buffer should not be allocated on heap";

  {
    VolatileBufferPtr<char> ptr(buf);

    EXPECT_TRUE(ptr.WasBufferPurged())
        << "Buffer should not be unpurged after forced purge";
    EXPECT_STRNE(ptr, teststr) << "Purge did not actually purge data";
  }

  {
    VolatileBufferPtr<char> ptr(buf);

    EXPECT_FALSE(ptr.WasBufferPurged()) << "Buffer still purged after lock";
  }
}

quality97%

¤ Dauer der Verarbeitung: 0.13 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.