/* -*- 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 "threading/ProtectedData.h"
#include "threading/Mutex.h"
#include "vm/HelperThreads.h"
#include "vm/JSContext.h"
namespace js {
#ifdef JS_HAS_PROTECTED_DATA_CHECKS
/* static */ mozilla::Atomic<size_t, mozilla::SequentiallyConsistent>
AutoNoteSingleThreadedRegion::count(
0);
template <AllowedHelperThread Helper>
static inline bool OnHelperThread() {
if (Helper == AllowedHelperThread::IonCompile ||
Helper == AllowedHelperThread::GCTaskOrIonCompile) {
if (CurrentThreadIsOffThreadCompiling()) {
return true;
}
}
if (Helper == AllowedHelperThread::GCTask ||
Helper == AllowedHelperThread::GCTaskOrIonCompile) {
if (CurrentThreadIsPerformingGC()) {
return true;
}
}
return false;
}
void CheckThreadLocal::check()
const {
JSContext* cx = TlsContext.get();
MOZ_ASSERT(cx);
MOZ_ASSERT(CurrentThreadCanAccessRuntime(cx->runtime()));
MOZ_ASSERT(id == ThreadId::ThisThreadId());
}
void CheckContextLocal::check()
const {
if (!cx_->isInitialized()) {
return;
}
JSContext* cx = TlsContext.get();
MOZ_ASSERT(cx);
MOZ_ASSERT(CurrentThreadCanAccessRuntime(cx->runtime()));
MOZ_ASSERT(cx_ == cx);
}
void CheckMutexHeld::check()
const { mutex_.assertOwnedByCurrentThread(); }
template <AllowedHelperThread Helper>
void CheckMainThread<Helper>::check()
const {
if (OnHelperThread<Helper>()) {
return;
}
JSContext* cx = TlsContext.get();
MOZ_ASSERT(CurrentThreadCanAccessRuntime(cx->runtime()));
}
template class CheckMainThread<AllowedHelperThread::None>;
template class CheckMainThread<AllowedHelperThread::GCTask>;
template class CheckMainThread<AllowedHelperThread::IonCompile>;
template class CheckMainThread<AllowedHelperThread::GCTaskOrIonCompile>;
template <GlobalLock Lock, AllowedHelperThread Helper>
void CheckGlobalLock<Lock, Helper>::check()
const {
if (OnHelperThread<Helper>()) {
return;
}
switch (Lock) {
case GlobalLock::GCLock:
TlsGCContext.get()
->runtimeFromAnyThread()
->gc.assertCurrentThreadHasLockedGC();
break;
case GlobalLock::HelperThreadLock:
gHelperThreadLock.assertOwnedByCurrentThread();
break;
}
}
template class CheckGlobalLock<GlobalLock::GCLock, AllowedHelperThread::None>;
template class CheckGlobalLock<GlobalLock::HelperThreadLock,
AllowedHelperThread::None>;
#endif // JS_HAS_PROTECTED_DATA_CHECKS
}
// namespace js
