wuggy/Dactyloidae
wuggy/Dactyloidae
1
0
Fork 0
mirror of https://repo.dactyloidae.xyz/Dactyloidae/UXP.git synced 2026-10-04 22:37:29 +09:00
Code Issues Projects Releases Packages Wiki Activity

Issue #2654 - Remove pre-allocated process manager.

Browse source 
Resolves #2654
This commit is contained in:
Moonchild 2024-11-19 13:18:31 +01:00 • committed by roytam1
commit 75d698133f
22 changed files with 16 additions and 879 deletions
Download patch file Download diff file Expand all files Collapse all files

93
dom/ipc/TabChild.cpp
View file

@ -319,8 +319,6 @@ private:
};
namespace {
StaticRefPtr<TabChild> sPreallocatedTab;
std::map<TabId, RefPtr<TabChild>>&
NestedTabChildMap()
{
@ -341,91 +339,13 @@ TabChild::FindTabChild(const TabId& aTabId)
return tabChild.forget();
}
static void
PreloadSlowThingsPostFork(void* aUnused)
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
observerService->NotifyObservers(nullptr, "preload-postfork", nullptr);
MOZ_ASSERT(sPreallocatedTab);
// Initialize initial reflow of the PresShell has to happen after fork
// because about:blank content viewer is created in the above observer
// notification.
nsCOMPtr<nsIDocShell> docShell =
do_GetInterface(sPreallocatedTab->WebNavigation());
if (nsIPresShell* presShell = docShell->GetPresShell()) {
// Initialize and do an initial reflow of the about:blank
// PresShell to let it preload some things for us.
presShell->Initialize(0, 0);
nsIDocument* doc = presShell->GetDocument();
doc->FlushPendingNotifications(Flush_Layout);
// ... but after it's done, make sure it doesn't do any more
// work.
presShell->MakeZombie();
}
}
static bool sPreloaded = false;
/*static*/ void
TabChild::PreloadSlowThings()
{
if (sPreloaded) {
// If we are alredy initialized in Nuwa, don't redo preloading.
return;
}
sPreloaded = true;
// Pass nullptr to aManager since at this point the TabChild is
// not connected to any manager. Any attempt to use the TabChild
// in IPC will crash.
RefPtr<TabChild> tab(new TabChild(nullptr,
TabId(0),
TabContext(), /* chromeFlags */ 0));
if (!NS_SUCCEEDED(tab->Init()) ||
!tab->InitTabChildGlobal(DONT_LOAD_SCRIPTS)) {
return;
}
// Just load and compile these scripts, but don't run them.
tab->TryCacheLoadAndCompileScript(BROWSER_ELEMENT_CHILD_SCRIPT, true);
// Load, compile, and run these scripts.
tab->RecvLoadRemoteScript(
NS_LITERAL_STRING("chrome://global/content/preload.js"),
true);
sPreallocatedTab = tab;
ClearOnShutdown(&sPreallocatedTab);
PreloadSlowThingsPostFork(nullptr);
}
/*static*/ already_AddRefed<TabChild>
TabChild::Create(nsIContentChild* aManager,
const TabId& aTabId,
const TabContext &aContext,
uint32_t aChromeFlags)
{
if (sPreallocatedTab &&
sPreallocatedTab->mChromeFlags == aChromeFlags &&
aContext.IsMozBrowser()) {
RefPtr<TabChild> child = sPreallocatedTab.get();
sPreallocatedTab = nullptr;
MOZ_ASSERT(!child->mTriedBrowserInit);
child->mManager = aManager;
child->SetTabId(aTabId);
child->SetTabContext(aContext);
child->NotifyTabContextUpdated(true);
return child.forget();
}
RefPtr<TabChild> iframe = new TabChild(aManager, aTabId,
aContext, aChromeFlags);
RefPtr<TabChild> iframe = new TabChild(aManager, aTabId, aContext, aChromeFlags);
return NS_SUCCEEDED(iframe->Init()) ? iframe.forget() : nullptr;
}
@ -614,13 +534,6 @@ TabChild::DoUpdateZoomConstraints(const uint32_t& aPresShellId,
const ViewID& aViewId,
const Maybe<ZoomConstraints>& aConstraints)
{
if (sPreallocatedTab == this) {
// If we're the preallocated tab, bail out because doing IPC will crash.
// Once we get used for something we'll get another zoom constraints update
// and all will be well.
return true;
}
if (!mApzcTreeManager) {
return false;
}
@ -2446,7 +2359,7 @@ TabChild::DeallocPRenderFrameChild(PRenderFrameChild* aFrame)
}
bool
TabChild::InitTabChildGlobal(FrameScriptLoading aScriptLoading)
TabChild::InitTabChildGlobal()
{
if (!mGlobal && !mTabChildGlobal) {
nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(WebNavigation());
@ -2470,7 +2383,7 @@ TabChild::InitTabChildGlobal(FrameScriptLoading aScriptLoading)
root->SetParentTarget(scope);
}
if (aScriptLoading != DONT_LOAD_SCRIPTS && !mTriedBrowserInit) {
if (!mTriedBrowserInit) {
mTriedBrowserInit = true;
// Initialize the child side of the browser element machinery,
// if appropriate.