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