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Bug 1054638 - Notify the worker event loop when an XPCOM event is received, r=khuey.

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This commit is contained in:
Ben Turner 2014-11-17 11:55:37 -08:00
parent 5fc35366c8
commit 81be975ba8
5 changed files with 271 additions and 143 deletions
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26
dom/workers/RuntimeService.cpp
View File

@ -1542,8 +1542,10 @@ RuntimeService::ScheduleWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
}
}
const WorkerThreadFriendKey friendKey;
if (!thread) {
thread = WorkerThread::Create();
thread = WorkerThread::Create(friendKey);
if (!thread) {
UnregisterWorker(aCx, aWorkerPrivate);
JS_ReportError(aCx, "Could not create new thread!");
@ -1551,8 +1553,6 @@ RuntimeService::ScheduleWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
}
}
MOZ_ASSERT(thread->IsAcceptingNonWorkerRunnables());
int32_t priority = aWorkerPrivate->IsChromeWorker() ?
nsISupportsPriority::PRIORITY_NORMAL :
nsISupportsPriority::PRIORITY_LOW;
@ -1563,7 +1563,7 @@ RuntimeService::ScheduleWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
nsCOMPtr<nsIRunnable> runnable =
new WorkerThreadPrimaryRunnable(aWorkerPrivate, thread, JS_GetParentRuntime(aCx));
if (NS_FAILED(thread->Dispatch(runnable, NS_DISPATCH_NORMAL))) {
if (NS_FAILED(thread->DispatchPrimaryRunnable(friendKey, runnable))) {
UnregisterWorker(aCx, aWorkerPrivate);
JS_ReportError(aCx, "Could not dispatch to thread!");
return false;
@ -2315,10 +2315,6 @@ RuntimeService::NoteIdleThread(WorkerThread* aThread)
AssertIsOnMainThread();
MOZ_ASSERT(aThread);
#ifdef DEBUG
aThread->SetAcceptingNonWorkerRunnables(true);
#endif
static TimeDuration timeout =
TimeDuration::FromSeconds(IDLE_THREAD_TIMEOUT_SEC);
@ -2566,15 +2562,17 @@ WorkerThreadPrimaryRunnable::Run()
char stackBaseGuess;
PR_SetCurrentThreadName("DOM Worker");
nsAutoCString threadName;
threadName.AssignLiteral("WebWorker '");
threadName.AssignLiteral("DOM Worker '");
threadName.Append(NS_LossyConvertUTF16toASCII(mWorkerPrivate->ScriptURL()));
threadName.Append('\'');
profiler_register_thread(threadName.get(), &stackBaseGuess);
// Note: SynchronouslyCreatePBackground() must be called prior to
// mThread->SetWorker() in order to avoid accidentally consuming
// mWorkerPrivate->SetThread() in order to avoid accidentally consuming
// worker messages here.
nsresult rv = SynchronouslyCreatePBackground();
if (NS_WARN_IF(NS_FAILED(rv))) {
@ -2582,7 +2580,7 @@ WorkerThreadPrimaryRunnable::Run()
return rv;
}
mThread->SetWorker(mWorkerPrivate);
mWorkerPrivate->SetThread(mThread);
#ifdef ENABLE_TESTS
TestPBackground();
@ -2643,7 +2641,7 @@ WorkerThreadPrimaryRunnable::Run()
// participating.
}
mThread->SetWorker(nullptr);
mWorkerPrivate->SetThread(nullptr);
mWorkerPrivate->ScheduleDeletion(WorkerPrivate::WorkerRan);
@ -2688,10 +2686,6 @@ WorkerThreadPrimaryRunnable::SynchronouslyCreatePBackground()
return NS_ERROR_FAILURE;
}
#ifdef DEBUG
mThread->SetAcceptingNonWorkerRunnables(false);
#endif
return NS_OK;
}

102
dom/workers/WorkerPrivate.cpp
View File

@ -65,6 +65,7 @@
#include "nsPrintfCString.h"
#include "nsProxyRelease.h"
#include "nsSandboxFlags.h"
#include "prthread.h"
#include "xpcpublic.h"
#ifdef ANDROID
@ -86,6 +87,7 @@
#include "WorkerFeature.h"
#include "WorkerRunnable.h"
#include "WorkerScope.h"
#include "WorkerThread.h"
// JS_MaybeGC will run once every second during normal execution.
#define PERIODIC_GC_TIMER_DELAY_SEC 1
@ -2130,15 +2132,13 @@ WorkerPrivateParent<Derived>::DispatchPrivate(WorkerRunnable* aRunnable,
return NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsIEventTarget> target;
nsresult rv;
if (aSyncLoopTarget) {
target = aSyncLoopTarget;
}
else {
target = self->mThread;
rv = aSyncLoopTarget->Dispatch(aRunnable, NS_DISPATCH_NORMAL);
} else {
rv = self->mThread->Dispatch(WorkerThreadFriendKey(), aRunnable);
}
nsresult rv = target->Dispatch(aRunnable, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
@ -3713,19 +3713,25 @@ WorkerPrivate::WorkerPrivate(JSContext* aCx,
bool aIsChromeWorker, WorkerType aWorkerType,
const nsACString& aSharedWorkerName,
LoadInfo& aLoadInfo)
: WorkerPrivateParent<WorkerPrivate>(aCx, aParent, aScriptURL,
aIsChromeWorker, aWorkerType,
aSharedWorkerName, aLoadInfo),
mJSContext(nullptr), mErrorHandlerRecursionCount(0), mNextTimeoutId(1),
mStatus(Pending), mSuspended(false), mTimerRunning(false),
mRunningExpiredTimeouts(false), mCloseHandlerStarted(false),
mCloseHandlerFinished(false), mMemoryReporterRunning(false),
mBlockedForMemoryReporter(false), mCancelAllPendingRunnables(false),
mPeriodicGCTimerRunning(false), mIdleGCTimerRunning(false),
mWorkerScriptExecutedSuccessfully(false)
#ifdef DEBUG
: WorkerPrivateParent<WorkerPrivate>(aCx, aParent, aScriptURL,
aIsChromeWorker, aWorkerType,
aSharedWorkerName, aLoadInfo)
, mJSContext(nullptr)
, mPRThread(nullptr)
#endif
, mErrorHandlerRecursionCount(0)
, mNextTimeoutId(1)
, mStatus(Pending)
, mSuspended(false)
, mTimerRunning(false)
, mRunningExpiredTimeouts(false)
, mCloseHandlerStarted(false)
, mCloseHandlerFinished(false)
, mMemoryReporterRunning(false)
, mBlockedForMemoryReporter(false)
, mCancelAllPendingRunnables(false)
, mPeriodicGCTimerRunning(false)
, mIdleGCTimerRunning(false)
, mWorkerScriptExecutedSuccessfully(false)
{
MOZ_ASSERT_IF(!IsDedicatedWorker(), !aSharedWorkerName.IsVoid());
MOZ_ASSERT_IF(IsDedicatedWorker(), aSharedWorkerName.IsEmpty());
@ -4444,24 +4450,9 @@ WorkerPrivate::IsOnCurrentThread(bool* aIsOnCurrentThread)
// May be called on any thread!
MOZ_ASSERT(aIsOnCurrentThread);
MOZ_ASSERT(mPRThread);
nsCOMPtr<nsIThread> thread;
{
MutexAutoLock lock(mMutex);
thread = mThread;
}
if (!thread) {
NS_WARNING("Trying to test thread correctness after the worker has "
"released its thread!");
return NS_ERROR_FAILURE;
}
nsresult rv = thread->IsOnCurrentThread(aIsOnCurrentThread);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
*aIsOnCurrentThread = PR_GetCurrentThread() == mPRThread;
return NS_OK;
}
@ -4981,14 +4972,11 @@ WorkerPrivate::RunCurrentSyncLoop()
loopInfo->mHasRun = true;
#endif
nsCOMPtr<nsIThreadInternal> thread = do_QueryInterface(mThread);
MOZ_ASSERT(thread);
while (!loopInfo->mCompleted) {
bool normalRunnablesPending = false;
// Don't block with the periodic GC timer running.
if (!NS_HasPendingEvents(thread)) {
if (!NS_HasPendingEvents(mThread)) {
SetGCTimerMode(IdleTimer);
}
@ -4999,7 +4987,7 @@ WorkerPrivate::RunCurrentSyncLoop()
for (;;) {
while (mControlQueue.IsEmpty() &&
!normalRunnablesPending &&
!(normalRunnablesPending = NS_HasPendingEvents(thread))) {
!(normalRunnablesPending = NS_HasPendingEvents(mThread))) {
WaitForWorkerEvents();
}
@ -5017,7 +5005,7 @@ WorkerPrivate::RunCurrentSyncLoop()
// Make sure the periodic timer is running before we continue.
SetGCTimerMode(PeriodicTimer);
MOZ_ALWAYS_TRUE(NS_ProcessNextEvent(thread, false));
MOZ_ALWAYS_TRUE(NS_ProcessNextEvent(mThread, false));
// Now *might* be a good time to GC. Let the JS engine make the decision.
JS_MaybeGC(cx);
@ -5037,10 +5025,7 @@ WorkerPrivate::DestroySyncLoop(uint32_t aLoopIndex, nsIThreadInternal* aThread)
MOZ_ASSERT(mSyncLoopStack.Length() - 1 == aLoopIndex);
if (!aThread) {
nsCOMPtr<nsIThreadInternal> thread = do_QueryInterface(mThread);
MOZ_ASSERT(thread);
aThread = thread.get();
aThread = mThread;
}
// We're about to delete the loop, stash its event target and result.
@ -5851,13 +5836,16 @@ WorkerPrivate::CycleCollectInternal(JSContext* aCx, bool aCollectChildren)
}
void
WorkerPrivate::SetThread(nsIThread* aThread)
WorkerPrivate::SetThread(WorkerThread* aThread)
{
#ifdef DEBUG
if (aThread) {
bool isOnCurrentThread;
MOZ_ASSERT(NS_SUCCEEDED(aThread->IsOnCurrentThread(&isOnCurrentThread)));
MOZ_ASSERT(isOnCurrentThread);
#ifdef DEBUG
{
bool isOnCurrentThread;
MOZ_ASSERT(NS_SUCCEEDED(aThread->IsOnCurrentThread(&isOnCurrentThread)));
MOZ_ASSERT(isOnCurrentThread);
}
#endif
MOZ_ASSERT(!mPRThread);
mPRThread = PRThreadFromThread(aThread);
@ -5866,9 +5854,10 @@ WorkerPrivate::SetThread(nsIThread* aThread)
else {
MOZ_ASSERT(mPRThread);
}
#endif
nsCOMPtr<nsIThread> doomedThread;
const WorkerThreadFriendKey friendKey;
nsRefPtr<WorkerThread> doomedThread;
{ // Scope so that |doomedThread| is released without holding the lock.
MutexAutoLock lock(mMutex);
@ -5878,18 +5867,21 @@ WorkerPrivate::SetThread(nsIThread* aThread)
MOZ_ASSERT(mStatus == Pending);
mThread = aThread;
mThread->SetWorker(friendKey, this);
if (!mPreStartRunnables.IsEmpty()) {
for (uint32_t index = 0; index < mPreStartRunnables.Length(); index++) {
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(mThread->Dispatch(
mPreStartRunnables[index],
NS_DISPATCH_NORMAL)));
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(
mThread->Dispatch(friendKey, mPreStartRunnables[index])));
}
mPreStartRunnables.Clear();
}
}
else {
MOZ_ASSERT(mThread);
mThread->SetWorker(friendKey, nullptr);
mThread.swap(doomedThread);
}
}

17
dom/workers/WorkerPrivate.h
View File

@ -49,9 +49,7 @@ class Function;
}
}
#ifdef DEBUG
struct PRThread;
#endif
BEGIN_WORKERS_NAMESPACE
@ -59,10 +57,11 @@ class AutoSyncLoopHolder;
class MessagePort;
class SharedWorker;
class WorkerControlRunnable;
class WorkerDebugger;
class WorkerGlobalScope;
class WorkerPrivate;
class WorkerRunnable;
class WorkerDebugger;
class WorkerThread;
// If you change this, the corresponding list in nsIWorkerDebugger.idl needs to
// be updated too.
@ -779,6 +778,8 @@ class WorkerPrivate : public WorkerPrivateParent<WorkerPrivate>
class MemoryReporter;
friend class MemoryReporter;
friend class WorkerThread;
enum GCTimerMode
{
PeriodicTimer = 0,
@ -794,7 +795,8 @@ class WorkerPrivate : public WorkerPrivateParent<WorkerPrivate>
JSContext* mJSContext;
nsRefPtr<WorkerCrossThreadDispatcher> mCrossThreadDispatcher;
nsTArray<nsCOMPtr<nsIRunnable>> mUndispatchedRunnablesForSyncLoop;
nsCOMPtr<nsIThread> mThread;
nsRefPtr<WorkerThread> mThread;
PRThread* mPRThread;
// Things touched on worker thread only.
nsRefPtr<WorkerGlobalScope> mScope;
@ -844,11 +846,6 @@ class WorkerPrivate : public WorkerPrivateParent<WorkerPrivate>
bool mPeriodicGCTimerRunning;
bool mIdleGCTimerRunning;
bool mWorkerScriptExecutedSuccessfully;
#ifdef DEBUG
PRThread* mPRThread;
#endif
bool mPreferences[WORKERPREF_COUNT];
bool mOnLine;
@ -1045,7 +1042,7 @@ public:
}
void
SetThread(nsIThread* aThread);
SetThread(WorkerThread* aThread);
void
AssertIsOnWorkerThread() const

202
dom/workers/WorkerThread.cpp
View File

@ -30,6 +30,20 @@ const uint32_t kWorkerStackSize = 256 * sizeof(size_t) * 1024;
} // anonymous namespace
#ifdef NS_BUILD_REFCNT_LOGGING
WorkerThreadFriendKey::WorkerThreadFriendKey()
{
MOZ_COUNT_CTOR(WorkerThreadFriendKey);
}
WorkerThreadFriendKey::~WorkerThreadFriendKey()
{
MOZ_COUNT_DTOR(WorkerThreadFriendKey);
}
#endif
class WorkerThread::Observer MOZ_FINAL
: public nsIThreadObserver
{
@ -55,21 +69,24 @@ private:
};
WorkerThread::WorkerThread()
: nsThread(nsThread::NOT_MAIN_THREAD, kWorkerStackSize),
mWorkerPrivate(nullptr)
#ifdef DEBUG
: nsThread(nsThread::NOT_MAIN_THREAD, kWorkerStackSize)
, mWorkerPrivateCondVar(mLock, "WorkerThread::mWorkerPrivateCondVar")
, mWorkerPrivate(nullptr)
, mOtherThreadDispatchingViaEventTarget(false)
, mAcceptingNonWorkerRunnables(true)
#endif
{
}
WorkerThread::~WorkerThread()
{
MOZ_ASSERT(!mWorkerPrivate);
MOZ_ASSERT(!mOtherThreadDispatchingViaEventTarget);
MOZ_ASSERT(mAcceptingNonWorkerRunnables);
}
// static
already_AddRefed<WorkerThread>
WorkerThread::Create()
WorkerThread::Create(const WorkerThreadFriendKey& /* aKey */)
{
MOZ_ASSERT(nsThreadManager::get());
@ -79,40 +96,106 @@ WorkerThread::Create()
return nullptr;
}
NS_SetThreadName(thread, "DOM Worker");
return thread.forget();
}
void
WorkerThread::SetWorker(WorkerPrivate* aWorkerPrivate)
WorkerThread::SetWorker(const WorkerThreadFriendKey& /* aKey */,
WorkerPrivate* aWorkerPrivate)
{
MOZ_ASSERT(PR_GetCurrentThread() == mThread);
MOZ_ASSERT_IF(aWorkerPrivate, !mWorkerPrivate);
MOZ_ASSERT_IF(!aWorkerPrivate, mWorkerPrivate);
// No need to lock here because mWorkerPrivate is only modified on mThread.
if (aWorkerPrivate) {
{
MutexAutoLock lock(mLock);
if (mWorkerPrivate) {
MOZ_ASSERT(mObserver);
MOZ_ASSERT(!mWorkerPrivate);
MOZ_ASSERT(mAcceptingNonWorkerRunnables);
mWorkerPrivate = aWorkerPrivate;
mAcceptingNonWorkerRunnables = false;
}
mObserver = new Observer(aWorkerPrivate);
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(AddObserver(mObserver)));
} else {
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(RemoveObserver(mObserver)));
mObserver = nullptr;
mWorkerPrivate->SetThread(nullptr);
{
MutexAutoLock lock(mLock);
MOZ_ASSERT(mWorkerPrivate);
MOZ_ASSERT(!mAcceptingNonWorkerRunnables);
MOZ_ASSERT(!mOtherThreadDispatchingViaEventTarget,
"XPCOM Dispatch hapenning at the same time our thread is "
"being unset! This should not be possible!");
while (mOtherThreadDispatchingViaEventTarget) {
mWorkerPrivateCondVar.Wait();
}
mAcceptingNonWorkerRunnables = true;
mWorkerPrivate = nullptr;
}
}
}
nsresult
WorkerThread::DispatchPrimaryRunnable(const WorkerThreadFriendKey& /* aKey */,
nsIRunnable* aRunnable)
{
#ifdef DEBUG
MOZ_ASSERT(PR_GetCurrentThread() != mThread);
MOZ_ASSERT(aRunnable);
{
MutexAutoLock lock(mLock);
MOZ_ASSERT(!mWorkerPrivate);
MOZ_ASSERT(mAcceptingNonWorkerRunnables);
}
#endif
nsresult rv = nsThread::Dispatch(aRunnable, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mWorkerPrivate = aWorkerPrivate;
return NS_OK;
}
if (mWorkerPrivate) {
mWorkerPrivate->SetThread(this);
nsresult
WorkerThread::Dispatch(const WorkerThreadFriendKey& /* aKey */,
WorkerRunnable* aWorkerRunnable)
{
// May be called on any thread!
nsRefPtr<Observer> observer = new Observer(mWorkerPrivate);
#ifdef DEBUG
{
const bool onWorkerThread = PR_GetCurrentThread() == mThread;
{
MutexAutoLock lock(mLock);
MOZ_ALWAYS_TRUE(NS_SUCCEEDED(AddObserver(observer)));
MOZ_ASSERT(mWorkerPrivate);
MOZ_ASSERT(!mAcceptingNonWorkerRunnables);
mObserver.swap(observer);
if (onWorkerThread) {
mWorkerPrivate->AssertIsOnWorkerThread();
}
}
}
#endif
nsresult rv = nsThread::Dispatch(aWorkerRunnable, NS_DISPATCH_NORMAL);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// We don't need to notify the worker's condition variable here because we're
// being called from worker-controlled code and it will make sure to wake up
// the worker thread if needed.
return NS_OK;
}
NS_IMPL_ISUPPORTS_INHERITED0(WorkerThread, nsThread)
@ -122,37 +205,82 @@ WorkerThread::Dispatch(nsIRunnable* aRunnable, uint32_t aFlags)
{
// May be called on any thread!
#ifdef DEBUG
if (PR_GetCurrentThread() == mThread) {
MOZ_ASSERT(mWorkerPrivate);
mWorkerPrivate->AssertIsOnWorkerThread();
// Workers only support asynchronous dispatch.
if (NS_WARN_IF(aFlags != NS_DISPATCH_NORMAL)) {
return NS_ERROR_UNEXPECTED;
}
else if (aRunnable && !IsAcceptingNonWorkerRunnables()) {
// Only enforce cancelable runnables after we've started the worker loop.
const bool onWorkerThread = PR_GetCurrentThread() == mThread;
#ifdef DEBUG
if (aRunnable && !onWorkerThread) {
nsCOMPtr<nsICancelableRunnable> cancelable = do_QueryInterface(aRunnable);
MOZ_ASSERT(cancelable,
"Should have been wrapped by the worker's event target!");
{
MutexAutoLock lock(mLock);
// Only enforce cancelable runnables after we've started the worker loop.
if (!mAcceptingNonWorkerRunnables) {
MOZ_ASSERT(cancelable,
"Only nsICancelableRunnable may be dispatched to a worker!");
}
}
}
#endif
// Workers only support asynchronous dispatch for now.
if (NS_WARN_IF(aFlags != NS_DISPATCH_NORMAL)) {
return NS_ERROR_UNEXPECTED;
WorkerPrivate* workerPrivate = nullptr;
if (onWorkerThread) {
// No need to lock here because it is only modified on this thread.
MOZ_ASSERT(mWorkerPrivate);
mWorkerPrivate->AssertIsOnWorkerThread();
workerPrivate = mWorkerPrivate;
} else {
MutexAutoLock lock(mLock);
MOZ_ASSERT(!mOtherThreadDispatchingViaEventTarget);
if (mWorkerPrivate) {
workerPrivate = mWorkerPrivate;
// Setting this flag will make the worker thread sleep if it somehow tries
// to unset mWorkerPrivate while we're using it.
mOtherThreadDispatchingViaEventTarget = true;
}
}
nsIRunnable* runnableToDispatch;
nsRefPtr<WorkerRunnable> workerRunnable;
if (aRunnable && PR_GetCurrentThread() == mThread) {
// No need to lock here because mWorkerPrivate is only modified on mThread.
workerRunnable = mWorkerPrivate->MaybeWrapAsWorkerRunnable(aRunnable);
if (aRunnable && onWorkerThread) {
workerRunnable = workerPrivate->MaybeWrapAsWorkerRunnable(aRunnable);
runnableToDispatch = workerRunnable;
}
else {
} else {
runnableToDispatch = aRunnable;
}
nsresult rv = nsThread::Dispatch(runnableToDispatch, NS_DISPATCH_NORMAL);
if (!onWorkerThread && workerPrivate) {
// We need to wake the worker thread if we're not already on the right
// thread and the dispatch succeeded.
if (NS_SUCCEEDED(rv)) {
MutexAutoLock workerLock(workerPrivate->mMutex);
workerPrivate->mCondVar.Notify();
}
// Now unset our waiting flag.
{
MutexAutoLock lock(mLock);
MOZ_ASSERT(mOtherThreadDispatchingViaEventTarget);
mOtherThreadDispatchingViaEventTarget = false;
mWorkerPrivateCondVar.Notify();
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}

67
dom/workers/WorkerThread.h
View File

@ -8,6 +8,7 @@
#define mozilla_dom_workers_WorkerThread_h__
#include "mozilla/Attributes.h"
#include "mozilla/CondVar.h"
#include "mozilla/DebugOnly.h"
#include "nsISupportsImpl.h"
#include "nsRefPtr.h"
@ -19,54 +20,70 @@ namespace mozilla {
namespace dom {
namespace workers {
class RuntimeService;
class WorkerPrivate;
template <class> class WorkerPrivateParent;
class WorkerRunnable;
// This class lets us restrict the public methods that can be called on
// WorkerThread to RuntimeService and WorkerPrivate without letting them gain
// full access to private methods (as would happen if they were simply friends).
class WorkerThreadFriendKey
{
friend class RuntimeService;
friend class WorkerPrivate;
friend class WorkerPrivateParent<WorkerPrivate>;
#ifdef NS_BUILD_REFCNT_LOGGING
WorkerThreadFriendKey();
~WorkerThreadFriendKey();
#endif
};
class WorkerThread MOZ_FINAL
: public nsThread
{
class Observer;
CondVar mWorkerPrivateCondVar;
// Protected by nsThread::mLock.
WorkerPrivate* mWorkerPrivate;
// Only touched on the target thread.
nsRefPtr<Observer> mObserver;
#ifdef DEBUG
// Protected by nsThread::mLock and waited on with mWorkerPrivateCondVar.
bool mOtherThreadDispatchingViaEventTarget;
// Protected by nsThread::mLock.
bool mAcceptingNonWorkerRunnables;
#endif
DebugOnly<bool> mAcceptingNonWorkerRunnables;
public:
static already_AddRefed<WorkerThread>
Create();
Create(const WorkerThreadFriendKey& aKey);
void
SetWorker(WorkerPrivate* aWorkerPrivate);
SetWorker(const WorkerThreadFriendKey& aKey, WorkerPrivate* aWorkerPrivate);
nsresult
DispatchPrimaryRunnable(const WorkerThreadFriendKey& aKey,
nsIRunnable* aRunnable);
nsresult
Dispatch(const WorkerThreadFriendKey& aKey,
WorkerRunnable* aWorkerRunnable);
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHOD
Dispatch(nsIRunnable* aRunnable, uint32_t aFlags) MOZ_OVERRIDE;
#ifdef DEBUG
bool
IsAcceptingNonWorkerRunnables()
{
MutexAutoLock lock(mLock);
return mAcceptingNonWorkerRunnables;
}
void
SetAcceptingNonWorkerRunnables(bool aAcceptingNonWorkerRunnables)
{
MutexAutoLock lock(mLock);
mAcceptingNonWorkerRunnables = aAcceptingNonWorkerRunnables;
}
#endif
private:
WorkerThread();
~WorkerThread();
// This should only be called by consumers that have an
// nsIEventTarget/nsIThread pointer.
NS_IMETHOD
Dispatch(nsIRunnable* aRunnable, uint32_t aFlags) MOZ_OVERRIDE;
};
} // namespace workers