mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-11-19 18:38:36 +00:00
52 lines
1.3 KiB
C++
52 lines
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 "Principal.h"
|
|
|
|
#include "jsapi.h"
|
|
#include "mozilla/Assertions.h"
|
|
|
|
BEGIN_WORKERS_NAMESPACE
|
|
|
|
struct WorkerPrincipal final : public JSPrincipals
|
|
{
|
|
bool write(JSContext* aCx, JSStructuredCloneWriter* aWriter) override {
|
|
MOZ_CRASH("WorkerPrincipal::write not implemented");
|
|
return false;
|
|
}
|
|
};
|
|
|
|
JSPrincipals*
|
|
GetWorkerPrincipal()
|
|
{
|
|
static WorkerPrincipal 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;
|
|
}
|
|
|
|
void
|
|
DestroyWorkerPrincipals(JSPrincipals* aPrincipals)
|
|
{
|
|
MOZ_ASSERT_UNREACHABLE("Worker principals refcount should never fall below one");
|
|
}
|
|
|
|
END_WORKERS_NAMESPACE
|