зеркало из https://github.com/mozilla/gecko-dev.git
46 строки
1.3 KiB
C++
46 строки
1.3 KiB
C++
/* -*- 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
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "WorkletPrincipal.h"
|
|
#include "jsapi.h"
|
|
#include "mozilla/Assertions.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
namespace WorkletPrincipal {
|
|
|
|
struct WorkletPrincipal final : public JSPrincipals {
|
|
bool write(JSContext* aCx, JSStructuredCloneWriter* aWriter) override {
|
|
MOZ_CRASH("WorkletPrincipal::write not implemented");
|
|
return false;
|
|
}
|
|
};
|
|
|
|
JSPrincipals* GetWorkletPrincipal() {
|
|
static WorkletPrincipal sPrincipal;
|
|
|
|
/*
|
|
* To make sure the the principals refcount is initialized to one, atomically
|
|
* increment it on every pass though this function. If we discover this wasn't
|
|
* the first time, decrement it again. This avoids the need for
|
|
* synchronization.
|
|
*/
|
|
int32_t prevRefcount = sPrincipal.refcount++;
|
|
if (prevRefcount > 0) {
|
|
--sPrincipal.refcount;
|
|
} else {
|
|
#ifdef DEBUG
|
|
sPrincipal.debugToken = kJSPrincipalsDebugToken;
|
|
#endif
|
|
}
|
|
|
|
return &sPrincipal;
|
|
}
|
|
|
|
} // namespace WorkletPrincipal
|
|
} // namespace dom
|
|
} // namespace mozilla
|