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83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/*
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* Copyright (C) 2014 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "flutter/sky/engine/platform/TestingPlatformSupport.h"
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namespace blink {
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TestingDiscardableMemory::TestingDiscardableMemory(size_t size) : m_data(size), m_isLocked(true)
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{
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}
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TestingDiscardableMemory::~TestingDiscardableMemory()
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{
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}
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bool TestingDiscardableMemory::lock()
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{
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ASSERT(!m_isLocked);
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m_isLocked = true;
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return false;
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}
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void* TestingDiscardableMemory::data()
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{
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ASSERT(m_isLocked);
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return m_data.data();
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}
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void TestingDiscardableMemory::unlock()
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{
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ASSERT(m_isLocked);
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m_isLocked = false;
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// Force eviction to catch clients not correctly checking the return value of lock().
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memset(m_data.data(), 0, m_data.size());
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}
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TestingPlatformSupport::TestingPlatformSupport(const Config& config)
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: m_config(config)
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, m_oldPlatform(blink::Platform::current())
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{
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blink::Platform::initialize(this);
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}
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TestingPlatformSupport::~TestingPlatformSupport()
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{
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blink::Platform::initialize(m_oldPlatform);
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}
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blink::WebDiscardableMemory* TestingPlatformSupport::allocateAndLockDiscardableMemory(size_t bytes)
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{
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return !m_config.hasDiscardableMemorySupport ? 0 : new TestingDiscardableMemory(bytes);
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}
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} // namespace blink
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