/*
* Copyright (C) 2014 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "platform/TestingPlatformSupport.h"
namespace WebCore {
TestingDiscardableMemory::TestingDiscardableMemory(size_t size) : m_data(size), m_isLocked(true)
{
}
TestingDiscardableMemory::~TestingDiscardableMemory()
{
}
bool TestingDiscardableMemory::lock()
{
ASSERT(!m_isLocked);
m_isLocked = true;
return false;
}
void* TestingDiscardableMemory::data()
{
ASSERT(m_isLocked);
return m_data.data();
}
void TestingDiscardableMemory::unlock()
{
ASSERT(m_isLocked);
m_isLocked = false;
// Force eviction to catch clients not correctly checking the return value of lock().
memset(m_data.data(), 0, m_data.size());
}
TestingPlatformSupport::TestingPlatformSupport(const Config& config)
: m_config(config)
, m_oldPlatform(blink::Platform::current())
{
blink::Platform::initialize(this);
}
TestingPlatformSupport::~TestingPlatformSupport()
{
blink::Platform::initialize(m_oldPlatform);
}
blink::WebDiscardableMemory* TestingPlatformSupport::allocateAndLockDiscardableMemory(size_t bytes)
{
return !m_config.hasDiscardableMemorySupport ? 0 : new TestingDiscardableMemory(bytes);
}
void TestingPlatformSupport::cryptographicallyRandomValues(unsigned char* buffer, size_t length)
{
}
const unsigned char* TestingPlatformSupport::getTraceCategoryEnabledFlag(const char* categoryName)
{
static const unsigned char tracingIsDisabled = 0;
return &tracingIsDisabled;
}
} // namespace WebCore