mirror of
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70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_JSOracleChild
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#define mozilla_dom_JSOracleChild
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#include "mozilla/dom/PJSOracleChild.h"
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#include "js/experimental/JSStencil.h"
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#include "js/experimental/CompileScript.h"
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#include "js/Initialization.h"
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#include "jsapi.h"
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namespace mozilla::ipc {
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class UtilityProcessParent;
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}
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namespace mozilla::dom {
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struct JSFrontendContextHolder {
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JSFrontendContextHolder() {
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MOZ_RELEASE_ASSERT(JS_IsInitialized(),
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"UtilityProcessChild::Init should have JS initialized");
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mFc = JS::NewFrontendContext();
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if (!mFc) {
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MOZ_CRASH("Failed to create JS FrontendContext");
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return;
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}
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// See the comment in XPCJSContext::Initialize.
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const size_t kDefaultStackQuota = 128 * sizeof(size_t) * 1024;
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JS::SetNativeStackQuota(mFc, kDefaultStackQuota);
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}
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~JSFrontendContextHolder() {
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if (mFc) {
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JS::DestroyFrontendContext(mFc);
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}
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}
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static void MaybeInit();
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JS::FrontendContext* mFc;
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};
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class PJSValidatorChild;
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class JSOracleChild final : public PJSOracleChild {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(JSOracleChild, override);
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already_AddRefed<PJSValidatorChild> AllocPJSValidatorChild();
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void Start(Endpoint<PJSOracleChild>&& aEndpoint);
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static JS::FrontendContext* JSFrontendContext();
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private:
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~JSOracleChild() = default;
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static JSOracleChild* GetSingleton();
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};
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} // namespace mozilla::dom
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#endif // defined(mozilla_dom_JSOracleChild)
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