mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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103 lines
3.6 KiB
C++
103 lines
3.6 KiB
C++
/*
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* Copyright (C) 2016-2017 Apple 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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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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#pragma once
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#if ENABLE(WEBASSEMBLY)
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#include "CompilationResult.h"
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#include "WasmB3IRGenerator.h"
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#include "WasmEmbedder.h"
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#include "WasmModuleInformation.h"
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#include <wtf/Bag.h>
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#include <wtf/CrossThreadCopier.h>
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#include <wtf/SharedTask.h>
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#include <wtf/ThreadSafeRefCounted.h>
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#include <wtf/Vector.h>
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namespace JSC {
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class CallLinkInfo;
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namespace Wasm {
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class CodeBlock;
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struct Context;
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class Plan : public ThreadSafeRefCounted<Plan> {
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public:
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typedef void CallbackType(Plan&);
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using CompletionTask = RefPtr<SharedTask<CallbackType>>;
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static CompletionTask dontFinalize() { return createSharedTask<CallbackType>([](Plan&) { }); }
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Plan(Context*, Ref<ModuleInformation>, CompletionTask&&);
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// Note: This constructor should only be used if you are not actually building a module e.g. validation/function tests
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JS_EXPORT_PRIVATE Plan(Context*, CompletionTask&&);
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virtual JS_EXPORT_PRIVATE ~Plan();
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// If you guarantee the ordering here, you can rely on FIFO of the
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// completion tasks being called.
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void addCompletionTask(Context*, CompletionTask&&);
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void setMode(MemoryMode mode) { m_mode = mode; }
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MemoryMode mode() const { return m_mode; }
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String errorMessage() const { return crossThreadCopy(m_errorMessage); }
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bool WARN_UNUSED_RETURN failed() const { return !m_errorMessage.isNull(); }
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virtual bool hasWork() const = 0;
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enum CompilationEffort { All, Partial };
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virtual void work(CompilationEffort = All) = 0;
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virtual bool multiThreaded() const = 0;
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void waitForCompletion();
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// Returns true if it cancelled the plan.
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bool tryRemoveContextAndCancelIfLast(Context&);
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protected:
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void runCompletionTasks(const AbstractLocker&);
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void fail(const AbstractLocker&, String&& errorMessage);
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virtual bool isComplete() const = 0;
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virtual void complete(const AbstractLocker&) = 0;
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static void updateCallSitesToCallUs(CodeBlock&, CodeLocationLabel<WasmEntryPtrTag> entrypoint, uint32_t functionIndex, uint32_t functionIndexSpace);
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Ref<ModuleInformation> m_moduleInformation;
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Vector<std::pair<Context*, CompletionTask>, 1> m_completionTasks;
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String m_errorMessage;
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MemoryMode m_mode { MemoryMode::BoundsChecking };
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Lock m_lock;
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Condition m_completed;
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};
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} } // namespace JSC::Wasm
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#endif // ENABLE(WEBASSEMBLY)
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