bool ScriptInterface::LoadGlobalScripts()
{
// Ignore this failure in tests
if (!g_VFS)
return false;
// Load and execute *.js in the global scripts directory
VfsPaths pathnames;
vfs::GetPathnames(g_VFS, L"globalscripts/", L"*.js", pathnames);
for (const VfsPath& path : pathnames)
if (!LoadGlobalScriptFile(path))
{
LOGERROR("LoadGlobalScripts: Failed to load script %s", path.string8());
return false;
}
JSAutoRequest rq(m->m_cx);
JS::RootedValue proto(m->m_cx);
JS::RootedObject global(m->m_cx, m->m_glob);
if (JS_GetProperty(m->m_cx, global, "Vector2Dprototype", &proto))
m->m_ScriptValCache[CACHE_VECTOR2DPROTO] = DefPersistentRooted<JS::Value>(GetJSRuntime(), proto);
if (JS_GetProperty(m->m_cx, global, "Vector3Dprototype", &proto))
m->m_ScriptValCache[CACHE_VECTOR3DPROTO] = DefPersistentRooted<JS::Value>(GetJSRuntime(), proto);
return true;
}
void ScriptInterface::DumpHeap()
{
#if MOZJS_DEBUG_ABI
JS_DumpHeap(GetJSRuntime(), stderr, NULL, JSTRACE_OBJECT, NULL, (size_t)-1, NULL);
#endif
fprintf(stderr, "# Bytes allocated: %u\n", JS_GetGCParameter(GetJSRuntime(), JSGC_BYTES));
JS_GC(GetJSRuntime());
fprintf(stderr, "# Bytes allocated after GC: %u\n", JS_GetGCParameter(GetJSRuntime(), JSGC_BYTES));
}
void XPCJSRuntime::UnsetContextGlobals()
{
if(!mClearedGlobalObjects.ops)
return;
RestoreContextGlobals();
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
if(nsXPConnect::GetXPConnect()->GetRequestDepth(acx) == 0)
{
JS_ClearNewbornRoots(acx);
if(acx->globalObject)
{
JSDHashEntryHdr* entry =
JS_DHashTableOperate(&mClearedGlobalObjects, acx,
JS_DHASH_ADD);
ClearedGlobalObject* clearedGlobal =
reinterpret_cast<ClearedGlobalObject*>(entry);
if(clearedGlobal)
{
clearedGlobal->mContext = acx;
clearedGlobal->mGlobalObject = acx->globalObject;
acx->globalObject = nsnull;
}
}
}
}
}
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);
}
void XPCJSRuntime::RootContextGlobals()
{
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
if(JS_HAS_OPTION(acx, JSOPTION_UNROOTED_GLOBAL))
{
JS_ToggleOptions(acx, JSOPTION_UNROOTED_GLOBAL);
--mUnrootedGlobalCount;
}
}
NS_ASSERTION(mUnrootedGlobalCount == 0, "bad state");
}
void
XPCJSRuntime::ClearWeakRoots()
{
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
if(XPCPerThreadData::IsMainThread(acx) &&
nsXPConnect::GetXPConnect()->GetRequestDepth(acx) == 0)
{
JS_ClearNewbornRoots(acx);
}
}
}
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::UnrootContextGlobals()
{
mUnrootedGlobalCount = 0;
JSContext *iter = nsnull, *acx;
while((acx = JS_ContextIterator(GetJSRuntime(), &iter)))
{
NS_ASSERTION(!JS_HAS_OPTION(acx, JSOPTION_UNROOTED_GLOBAL),
"unrooted global should be set only during CC");
if(XPCPerThreadData::IsMainThread(acx) &&
nsXPConnect::GetXPConnect()->GetRequestDepth(acx) == 0)
{
JS_ClearNewbornRoots(acx);
if(acx->globalObject)
{
JS_ToggleOptions(acx, JSOPTION_UNROOTED_GLOBAL);
++mUnrootedGlobalCount;
}
}
}
}
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);
}
