1/*
2 * Copyright (C) 2019 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(WEBASSEMBLY)
29
30#include "WasmCallee.h"
31#include "WasmContext.h"
32#include "WasmModule.h"
33#include "WasmOperations.h"
34#include "WasmPlan.h"
35
36namespace JSC {
37
38class CallLinkInfo;
39
40namespace Wasm {
41
42class OMGForOSREntryPlan final : public Plan {
43public:
44 using Base = Plan;
45
46 bool hasWork() const override { return !m_completed; }
47 void work(CompilationEffort) override;
48 bool multiThreaded() const override { return false; }
49
50 // Note: CompletionTask should not hold a reference to the Plan otherwise there will be a reference cycle.
51 OMGForOSREntryPlan(Context*, Ref<Module>&&, Ref<Callee>&&, uint32_t functionIndex, uint32_t loopIndex, MemoryMode, CompletionTask&&);
52
53private:
54 // For some reason friendship doesn't extend to parent classes...
55 using Base::m_lock;
56
57 bool isComplete() const override { return m_completed; }
58 void complete(const AbstractLocker& locker) override
59 {
60 m_completed = true;
61 runCompletionTasks(locker);
62 }
63
64 Ref<Module> m_module;
65 Ref<CodeBlock> m_codeBlock;
66 Ref<Callee> m_callee;
67 bool m_completed { false };
68 uint32_t m_functionIndex;
69 uint32_t m_loopIndex;
70};
71
72} } // namespace JSC::Wasm
73
74#endif // ENABLE(WEBASSEMBLY)
75