void
js_TraceAtomState(JSTracer *trc, JSBool allAtoms)
{
JSRuntime *rt = trc->context->runtime;
JSAtomState *state = &rt->atomState;
if (allAtoms) {
JS_DHashTableEnumerate(&state->doubleAtoms, js_locked_atom_tracer, trc);
JS_DHashTableEnumerate(&state->stringAtoms, js_locked_atom_tracer, trc);
} else {
JS_DHashTableEnumerate(&state->stringAtoms, js_pinned_atom_tracer, trc);
}
}
void
js_SweepAtomState(JSContext *cx)
{
JSAtomState *state = &cx->runtime->atomState;
JS_DHashTableEnumerate(&state->doubleAtoms, js_atom_sweeper, NULL);
JS_DHashTableEnumerate(&state->stringAtoms, js_atom_sweeper, NULL);
/*
* Optimize for simplicity and mutate table generation numbers even if the
* sweeper has not removed any entries.
*/
state->doubleAtoms.generation++;
state->stringAtoms.generation++;
}
void XPCJSRuntime::TraceXPConnectRoots(JSTracer *trc)
{
if(mClearedGlobalObjects.ops)
{
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
JSDHashEntryHdr* entry =
JS_DHashTableOperate(&mClearedGlobalObjects, acx,
JS_DHASH_LOOKUP);
if(JS_DHASH_ENTRY_IS_BUSY(entry))
{
ClearedGlobalObject* clearedGlobal =
reinterpret_cast<ClearedGlobalObject*>(entry);
JS_CALL_OBJECT_TRACER(trc, clearedGlobal->mGlobalObject,
"global object");
}
}
}
XPCWrappedNativeScope::TraceJS(trc, this);
for(XPCRootSetElem *e = mVariantRoots; e ; e = e->GetNextRoot())
static_cast<XPCTraceableVariant*>(e)->TraceJS(trc);
for(XPCRootSetElem *e = mWrappedJSRoots; e ; e = e->GetNextRoot())
static_cast<nsXPCWrappedJS*>(e)->TraceJS(trc);
if(mJSHolders.ops)
JS_DHashTableEnumerate(&mJSHolders, TraceJSHolder, trc);
}
js_DumpAtoms(JSContext *cx, FILE *fp)
{
JSAtomState *state = &cx->runtime->atomState;
fprintf(fp, "stringAtoms table contents:\n");
JS_DHashTableEnumerate(&state->stringAtoms, atom_dumper, fp);
#ifdef JS_DHASHMETER
JS_DHashTableDumpMeter(&state->stringAtoms, atom_dumper, fp);
#endif
putc('\n', fp);
fprintf(fp, "doubleAtoms table contents:\n");
JS_DHashTableEnumerate(&state->doubleAtoms, atom_dumper, fp);
#ifdef JS_DHASHMETER
JS_DHashTableDumpMeter(&state->doubleAtoms, atom_dumper, fp);
#endif
putc('\n', fp);
}
void
js_FinishCommonAtoms(JSContext *cx)
{
JSAtomState *state = &cx->runtime->atomState;
JS_DHashTableEnumerate(&state->stringAtoms, js_atom_unpinner, NULL);
#ifdef DEBUG
memset(COMMON_ATOMS_START(state), JS_FREE_PATTERN,
ATOM_OFFSET_LIMIT - ATOM_OFFSET_START);
#endif
}
void XPCJSRuntime::RestoreContextGlobals()
{
if(!mClearedGlobalObjects.ops || mClearedGlobalObjects.entryCount == 0)
return;
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
JSDHashEntryHdr* entry =
JS_DHashTableOperate(&mClearedGlobalObjects, acx, JS_DHASH_LOOKUP);
if(JS_DHASH_ENTRY_IS_BUSY(entry))
{
ClearedGlobalObject* clearedGlobal =
reinterpret_cast<ClearedGlobalObject*>(entry);
acx->globalObject = clearedGlobal->mGlobalObject;
}
}
JS_DHashTableEnumerate(&mClearedGlobalObjects, RemoveContextGlobal, nsnull);
}
void XPCJSRuntime::TraceXPConnectRoots(JSTracer *trc)
{
JSContext *iter = nsnull, *acx;
while ((acx = JS_ContextIterator(GetJSRuntime(), &iter))) {
JS_ASSERT(JS_HAS_OPTION(acx, JSOPTION_UNROOTED_GLOBAL));
if (acx->globalObject)
JS_CALL_OBJECT_TRACER(trc, acx->globalObject, "global object");
}
XPCWrappedNativeScope::TraceJS(trc, this);
for(XPCRootSetElem *e = mVariantRoots; e ; e = e->GetNextRoot())
static_cast<XPCTraceableVariant*>(e)->TraceJS(trc);
for(XPCRootSetElem *e = mWrappedJSRoots; e ; e = e->GetNextRoot())
static_cast<nsXPCWrappedJS*>(e)->TraceJS(trc);
if(mJSHolders.ops)
JS_DHashTableEnumerate(&mJSHolders, TraceJSHolder, trc);
}
void XPCJSRuntime::AddXPConnectRoots(JSContext* cx,
nsCycleCollectionTraversalCallback &cb)
{
// For all JS objects that are held by native objects but aren't held
// through rooting or locking, we need to add all the native objects that
// hold them so that the JS objects are colored correctly in the cycle
// collector. This includes JSContexts that don't have outstanding requests,
// because their global object wasn't marked by the JS GC. All other JS
// roots were marked by the JS GC and will be colored correctly in the cycle
// collector.
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
#ifndef DEBUG_CC
// Only skip JSContexts with outstanding requests if DEBUG_CC is not
// defined, else we do want to know about all JSContexts to get better
// graphs and explanations.
if(nsXPConnect::GetXPConnect()->GetRequestDepth(acx) != 0)
continue;
#endif
cb.NoteRoot(nsIProgrammingLanguage::CPLUSPLUS, acx,
nsXPConnect::JSContextParticipant());
}
XPCWrappedNativeScope::SuspectAllWrappers(this, cx, cb);
for(XPCRootSetElem *e = mVariantRoots; e ; e = e->GetNextRoot())
cb.NoteXPCOMRoot(static_cast<XPCTraceableVariant*>(e));
for(XPCRootSetElem *e = mWrappedJSRoots; e ; e = e->GetNextRoot())
{
nsIXPConnectWrappedJS *wrappedJS = static_cast<nsXPCWrappedJS*>(e);
cb.NoteXPCOMRoot(wrappedJS);
}
if(mJSHolders.ops)
JS_DHashTableEnumerate(&mJSHolders, NoteJSHolder, &cb);
}
void XPCJSRuntime::TraceXPConnectRoots(JSTracer *trc, JSBool rootGlobals)
{
if(mUnrootedGlobalCount != 0)
{
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
if(JS_HAS_OPTION(acx, JSOPTION_UNROOTED_GLOBAL))
{
NS_ASSERTION(nsXPConnect::GetXPConnect()->GetRequestDepth(acx)
== 0, "active cx must be always rooted");
NS_ASSERTION(acx->globalObject, "bad state");
JS_CALL_OBJECT_TRACER(trc, acx->globalObject,
"global object");
if(rootGlobals)
{
NS_ASSERTION(mUnrootedGlobalCount != 0, "bad state");
NS_ASSERTION(trc == acx->runtime->gcMarkingTracer,
"bad tracer");
JS_ToggleOptions(acx, JSOPTION_UNROOTED_GLOBAL);
--mUnrootedGlobalCount;
}
}
}
}
XPCWrappedNativeScope::TraceJS(trc, this);
for(XPCRootSetElem *e = mVariantRoots; e ; e = e->GetNextRoot())
static_cast<XPCTraceableVariant*>(e)->TraceJS(trc);
for(XPCRootSetElem *e = mWrappedJSRoots; e ; e = e->GetNextRoot())
static_cast<nsXPCWrappedJS*>(e)->TraceJS(trc);
if(mJSHolders.ops)
JS_DHashTableEnumerate(&mJSHolders, TraceJSHolder, trc);
}
void
js_FinishAtomState(JSRuntime *rt)
{
JSAtomState *state = &rt->atomState;
if (!IS_INITIALIZED_STATE(state)) {
/*
* We are called with uninitialized state when JS_NewRuntime fails and
* calls JS_DestroyRuntime on a partially initialized runtime.
*/
return;
}
JS_DHashTableEnumerate(&state->stringAtoms, js_string_uninterner, rt);
JS_DHashTableFinish(&state->stringAtoms);
JS_DHashTableFinish(&state->doubleAtoms);
#ifdef JS_THREADSAFE
js_FinishLock(&state->lock);
#endif
#ifdef DEBUG
memset(state, JS_FREE_PATTERN, sizeof *state);
#endif
}
XPCJSRuntime::~XPCJSRuntime()
{
#ifdef XPC_DUMP_AT_SHUTDOWN
{
// count the total JSContexts in use
JSContext* iter = nsnull;
int count = 0;
while(JS_ContextIterator(mJSRuntime, &iter))
count ++;
if(count)
printf("deleting XPCJSRuntime with %d live JSContexts\n", count);
}
#endif
// clean up and destroy maps...
if(mContextMap)
{
PurgeXPCContextList();
delete mContextMap;
}
if(mWrappedJSMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mWrappedJSMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live wrapped JSObject\n", (int)count);
#endif
mWrappedJSMap->Enumerate(WrappedJSShutdownMarker, mJSRuntime);
delete mWrappedJSMap;
}
if(mWrappedJSClassMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mWrappedJSClassMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live nsXPCWrappedJSClass\n", (int)count);
#endif
delete mWrappedJSClassMap;
}
if(mIID2NativeInterfaceMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mIID2NativeInterfaceMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeInterfaces\n", (int)count);
#endif
delete mIID2NativeInterfaceMap;
}
if(mClassInfo2NativeSetMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mClassInfo2NativeSetMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeSets\n", (int)count);
#endif
delete mClassInfo2NativeSetMap;
}
if(mNativeSetMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mNativeSetMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeSets\n", (int)count);
#endif
delete mNativeSetMap;
}
if(mMapLock)
XPCAutoLock::DestroyLock(mMapLock);
NS_IF_RELEASE(mJSRuntimeService);
if(mThisTranslatorMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mThisTranslatorMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live ThisTranslator\n", (int)count);
#endif
delete mThisTranslatorMap;
}
#ifdef XPC_CHECK_WRAPPERS_AT_SHUTDOWN
if(DEBUG_WrappedNativeHashtable)
{
int LiveWrapperCount = 0;
JS_DHashTableEnumerate(DEBUG_WrappedNativeHashtable,
DEBUG_WrapperChecker, &LiveWrapperCount);
if(LiveWrapperCount)
printf("deleting XPCJSRuntime with %d live XPCWrappedNative (found in wrapper check)\n", (int)LiveWrapperCount);
JS_DHashTableDestroy(DEBUG_WrappedNativeHashtable);
}
#endif
if(mNativeScriptableSharedMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mNativeScriptableSharedMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeScriptableShared\n", (int)count);
#endif
delete mNativeScriptableSharedMap;
}
if(mDyingWrappedNativeProtoMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mDyingWrappedNativeProtoMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live but dying XPCWrappedNativeProto\n", (int)count);
#endif
delete mDyingWrappedNativeProtoMap;
}
if(mDetachedWrappedNativeProtoMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mDetachedWrappedNativeProtoMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live detached XPCWrappedNativeProto\n", (int)count);
#endif
delete mDetachedWrappedNativeProtoMap;
}
if(mExplicitNativeWrapperMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mExplicitNativeWrapperMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live explicit XPCNativeWrapper\n", (int)count);
#endif
delete mExplicitNativeWrapperMap;
}
// unwire the readable/JSString sharing magic
XPCStringConvert::ShutdownDOMStringFinalizer();
XPCConvert::RemoveXPCOMUCStringFinalizer();
gOldJSGCCallback = NULL;
gOldJSContextCallback = NULL;
if(mJSHolders.ops)
{
JS_DHashTableFinish(&mJSHolders);
mJSHolders.ops = nsnull;
}
if(mClearedGlobalObjects.ops)
{
JS_DHashTableFinish(&mClearedGlobalObjects);
mClearedGlobalObjects.ops = nsnull;
}
}
XPCJSRuntime::~XPCJSRuntime()
{
if (mWatchdogWakeup)
{
// If the watchdog thread is running, tell it to terminate waking it
// up if necessary and wait until it signals that it finished. As we
// must release the lock before calling PR_DestroyCondVar, we use an
// extra block here.
{
AutoLockJSGC lock(mJSRuntime);
if (mWatchdogThread) {
mWatchdogThread = nsnull;
PR_NotifyCondVar(mWatchdogWakeup);
PR_WaitCondVar(mWatchdogWakeup, PR_INTERVAL_NO_TIMEOUT);
}
}
PR_DestroyCondVar(mWatchdogWakeup);
mWatchdogWakeup = nsnull;
}
#ifdef XPC_DUMP_AT_SHUTDOWN
{
// count the total JSContexts in use
JSContext* iter = nsnull;
int count = 0;
while(JS_ContextIterator(mJSRuntime, &iter))
count ++;
if(count)
printf("deleting XPCJSRuntime with %d live JSContexts\n", count);
}
#endif
// clean up and destroy maps...
if(mWrappedJSMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mWrappedJSMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live wrapped JSObject\n", (int)count);
#endif
mWrappedJSMap->Enumerate(WrappedJSShutdownMarker, mJSRuntime);
delete mWrappedJSMap;
}
if(mWrappedJSClassMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mWrappedJSClassMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live nsXPCWrappedJSClass\n", (int)count);
#endif
delete mWrappedJSClassMap;
}
if(mIID2NativeInterfaceMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mIID2NativeInterfaceMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeInterfaces\n", (int)count);
#endif
delete mIID2NativeInterfaceMap;
}
if(mClassInfo2NativeSetMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mClassInfo2NativeSetMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeSets\n", (int)count);
#endif
delete mClassInfo2NativeSetMap;
}
if(mNativeSetMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mNativeSetMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeSets\n", (int)count);
#endif
delete mNativeSetMap;
}
if(mMapLock)
XPCAutoLock::DestroyLock(mMapLock);
if(mThisTranslatorMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mThisTranslatorMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live ThisTranslator\n", (int)count);
#endif
delete mThisTranslatorMap;
}
#ifdef XPC_CHECK_WRAPPERS_AT_SHUTDOWN
if(DEBUG_WrappedNativeHashtable)
{
int LiveWrapperCount = 0;
JS_DHashTableEnumerate(DEBUG_WrappedNativeHashtable,
DEBUG_WrapperChecker, &LiveWrapperCount);
if(LiveWrapperCount)
printf("deleting XPCJSRuntime with %d live XPCWrappedNative (found in wrapper check)\n", (int)LiveWrapperCount);
JS_DHashTableDestroy(DEBUG_WrappedNativeHashtable);
}
#endif
if(mNativeScriptableSharedMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mNativeScriptableSharedMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live XPCNativeScriptableShared\n", (int)count);
#endif
delete mNativeScriptableSharedMap;
}
if(mDyingWrappedNativeProtoMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mDyingWrappedNativeProtoMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live but dying XPCWrappedNativeProto\n", (int)count);
#endif
delete mDyingWrappedNativeProtoMap;
}
if(mDetachedWrappedNativeProtoMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mDetachedWrappedNativeProtoMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live detached XPCWrappedNativeProto\n", (int)count);
#endif
delete mDetachedWrappedNativeProtoMap;
}
if(mExplicitNativeWrapperMap)
{
#ifdef XPC_DUMP_AT_SHUTDOWN
uint32 count = mExplicitNativeWrapperMap->Count();
if(count)
printf("deleting XPCJSRuntime with %d live explicit XPCNativeWrapper\n", (int)count);
#endif
delete mExplicitNativeWrapperMap;
}
// unwire the readable/JSString sharing magic
XPCStringConvert::ShutdownDOMStringFinalizer();
XPCConvert::RemoveXPCOMUCStringFinalizer();
if(mJSHolders.ops)
{
JS_DHashTableFinish(&mJSHolders);
mJSHolders.ops = nsnull;
}
if(mJSRuntime)
{
JS_DestroyRuntime(mJSRuntime);
JS_ShutDown();
#ifdef DEBUG_shaver_off
fprintf(stderr, "nJRSI: destroyed runtime %p\n", (void *)mJSRuntime);
#endif
}
XPCPerThreadData::ShutDown();
}