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Bug 1147911 Part 8: Create separate content process for file:// URIs. r=gabor, r=gijs, r=smaug

This commit is contained in:
Bob Owen 2016-11-17 15:48:53 +00:00
Родитель ce1bc7d820
Коммит 52529cb9a9
5 изменённых файлов: 72 добавлений и 50 удалений
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14
browser/modules/E10SUtils.jsm
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@ -26,13 +26,20 @@ function getAboutModule(aURL) {
const NOT_REMOTE = null;
const WEB_REMOTE_TYPE = "web";
const FILE_REMOTE_TYPE = "file";
// This must match the one in ContentParent.h.
const DEFAULT_REMOTE_TYPE = WEB_REMOTE_TYPE;
function validatedWebRemoteType(aPreferredRemoteType) {
return aPreferredRemoteType && aPreferredRemoteType.startsWith(WEB_REMOTE_TYPE)
? aPreferredRemoteType : WEB_REMOTE_TYPE;
}
this.E10SUtils = {
DEFAULT_REMOTE_TYPE,
NOT_REMOTE,
WEB_REMOTE_TYPE,
FILE_REMOTE_TYPE,
canLoadURIInProcess: function(aURL, aProcess) {
let remoteType = aProcess == Ci.nsIXULRuntime.PROCESS_TYPE_CONTENT
@ -55,6 +62,11 @@ this.E10SUtils = {
return aPreferredRemoteType;
}
if (aURL.startsWith("file:")) {
return Services.prefs.getBoolPref("browser.tabs.remote.separateFileUriProcess")
? FILE_REMOTE_TYPE : DEFAULT_REMOTE_TYPE;
}
if (aURL.startsWith("about:")) {
// We need to special case about:blank because it needs to load in any.
if (aURL == "about:blank") {
@ -115,7 +127,7 @@ this.E10SUtils = {
aMultiProcess, aPreferredRemoteType);
}
return WEB_REMOTE_TYPE;
return validatedWebRemoteType(aPreferredRemoteType);
},
shouldLoadURIInThisProcess: function(aURI) {

2
devtools/client/webconsole/test/browser_webconsole_bug_595223_file_uri.js
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@ -23,7 +23,7 @@ add_task(function* () {
// We need a file remote type to make sure we don't switch processes when we
// load the file:// URI.
let { browser } = yield loadTab("about:blank", "file");
let { browser } = yield loadTab("about:blank", E10SUtils.FILE_REMOTE_TYPE);
hud = yield openConsole();
hud.jsterm.clearOutput();

88
dom/ipc/ContentParent.cpp
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@ -494,8 +494,7 @@ ContentParentsMemoryReporter::CollectReports(
return NS_OK;
}
nsTArray<ContentParent*>* ContentParent::sBrowserContentParents;
nsTArray<ContentParent*>* ContentParent::sLargeAllocationContentParents;
nsClassHashtable<nsStringHashKey, nsTArray<ContentParent*>>* ContentParent::sBrowserContentParents;
nsTArray<ContentParent*>* ContentParent::sPrivateContent;
StaticAutoPtr<LinkedList<ContentParent> > ContentParent::sContentParents;
#if defined(XP_LINUX) && defined(MOZ_CONTENT_SANDBOX)
@ -648,24 +647,22 @@ ContentParent::GetNewOrUsedBrowserProcess(const nsAString& aRemoteType,
ContentParent* aOpener,
bool aLargeAllocationProcess)
{
nsTArray<ContentParent*>* contentParents;
int32_t maxContentParents;
if (!sBrowserContentParents) {
sBrowserContentParents =
new nsClassHashtable<nsStringHashKey, nsTArray<ContentParent*>>;
}
// Decide which pool of content parents we are going to be pulling from based
// on the aLargeAllocationProcess flag.
if (aLargeAllocationProcess) {
if (!sLargeAllocationContentParents) {
sLargeAllocationContentParents = new nsTArray<ContentParent*>();
}
contentParents = sLargeAllocationContentParents;
maxContentParents = Preferences::GetInt("dom.ipc.dedicatedProcessCount", 2);
} else {
if (!sBrowserContentParents) {
sBrowserContentParents = new nsTArray<ContentParent*>();
}
contentParents = sBrowserContentParents;
// on the aRemoteType and aLargeAllocationProcess flag.
nsAutoString contentProcessType(aLargeAllocationProcess
? LARGE_ALLOCATION_REMOTE_TYPE : aRemoteType);
nsTArray<ContentParent*>* contentParents =
sBrowserContentParents->LookupOrAdd(contentProcessType);
int32_t maxContentParents;
nsAutoCString processCountPref("dom.ipc.processCount.");
processCountPref.Append(NS_ConvertUTF16toUTF8(contentProcessType));
if (NS_FAILED(Preferences::GetInt(processCountPref.get(), &maxContentParents))) {
maxContentParents = Preferences::GetInt("dom.ipc.processCount", 1);
}
@ -688,7 +685,7 @@ ContentParent::GetNewOrUsedBrowserProcess(const nsAString& aRemoteType,
} while (currIdx != startIdx);
}
RefPtr<ContentParent> p = new ContentParent(aOpener, aRemoteType);
RefPtr<ContentParent> p = new ContentParent(aOpener, contentProcessType);
if (!p->LaunchSubprocess(aPriority)) {
return nullptr;
@ -696,8 +693,6 @@ ContentParent::GetNewOrUsedBrowserProcess(const nsAString& aRemoteType,
p->Init();
p->mLargeAllocationProcess = aLargeAllocationProcess;
p->ForwardKnownInfo();
contentParents->AppendElement(p);
@ -1308,18 +1303,17 @@ void
ContentParent::MarkAsDead()
{
if (sBrowserContentParents) {
sBrowserContentParents->RemoveElement(this);
if (!sBrowserContentParents->Length()) {
delete sBrowserContentParents;
sBrowserContentParents = nullptr;
}
}
if (sLargeAllocationContentParents) {
sLargeAllocationContentParents->RemoveElement(this);
if (!sLargeAllocationContentParents->Length()) {
delete sLargeAllocationContentParents;
sLargeAllocationContentParents = nullptr;
nsTArray<ContentParent*>* contentParents =
sBrowserContentParents->Get(mRemoteType);
if (contentParents) {
contentParents->RemoveElement(this);
if (contentParents->IsEmpty()) {
sBrowserContentParents->Remove(mRemoteType);
if (sBrowserContentParents->IsEmpty()) {
delete sBrowserContentParents;
sBrowserContentParents = nullptr;
}
}
}
}
@ -1648,10 +1642,13 @@ ContentParent::NotifyTabDestroying(const TabId& aTabId,
return;
}
uint32_t numberOfParents = sBrowserContentParents ? sBrowserContentParents->Length() : 0;
int32_t processesToKeepAlive = Preferences::GetInt("dom.ipc.keepProcessesAlive", 0);
if (!cp->mLargeAllocationProcess && static_cast<int32_t>(numberOfParents) <= processesToKeepAlive) {
return;
if (sBrowserContentParents && cp->mRemoteType.Equals(DEFAULT_REMOTE_TYPE)) {
auto contentParents = sBrowserContentParents->Get(cp->mRemoteType);
int32_t numberOfParents = contentParents ? contentParents->Length() : 0;
int32_t processesToKeepAlive = Preferences::GetInt("dom.ipc.keepProcessesAlive", 0);
if (numberOfParents <= processesToKeepAlive) {
return;
}
}
// We're dying now, so prevent this content process from being
@ -1705,10 +1702,13 @@ ContentParent::NotifyTabDestroyed(const TabId& aTabId,
// We might want to keep alive some content processes for testing, because of performance
// reasons, but we don't want to alter behavior if the pref is not set.
uint32_t numberOfParents = sBrowserContentParents ? sBrowserContentParents->Length() : 0;
int32_t processesToKeepAlive = Preferences::GetInt("dom.ipc.keepProcessesAlive", 0);
bool shouldKeepAliveAny = !mLargeAllocationProcess && processesToKeepAlive > 0;
bool shouldKeepAliveThis = shouldKeepAliveAny && static_cast<int32_t>(numberOfParents) <= processesToKeepAlive;
bool shouldKeepAliveThis = false;
if (sBrowserContentParents && mRemoteType.Equals(DEFAULT_REMOTE_TYPE)) {
auto contentParents = sBrowserContentParents->Get(mRemoteType);
int32_t numberOfParents = contentParents ? contentParents->Length() : 0;
int32_t processesToKeepAlive = Preferences::GetInt("dom.ipc.keepProcessesAlive", 0);
shouldKeepAliveThis = numberOfParents <= processesToKeepAlive;
}
if (tabIds.Length() == 1 && !shouldKeepAliveThis) {
// In the case of normal shutdown, send a shutdown message to child to
@ -1800,7 +1800,6 @@ ContentParent::ContentParent(ContentParent* aOpener,
, mOpener(aOpener)
, mRemoteType(aRemoteType)
, mIsForBrowser(!mRemoteType.IsEmpty())
, mLargeAllocationProcess(false)
{
InitializeMembers(); // Perform common initialization.
@ -1838,10 +1837,9 @@ ContentParent::~ContentParent()
// We should be removed from all these lists in ActorDestroy.
MOZ_ASSERT(!sPrivateContent || !sPrivateContent->Contains(this));
MOZ_ASSERT((!sBrowserContentParents ||
!sBrowserContentParents->Contains(this)) &&
(!sLargeAllocationContentParents ||
!sLargeAllocationContentParents->Contains(this)));
MOZ_ASSERT(!sBrowserContentParents ||
!sBrowserContentParents->Contains(mRemoteType) ||
!sBrowserContentParents->Get(mRemoteType)->Contains(this));
}
void

7
dom/ipc/ContentParent.h
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@ -87,6 +87,9 @@ class GetFilesHelper;
// This must match the one in E10SUtils.jsm.
static NS_NAMED_LITERAL_STRING(DEFAULT_REMOTE_TYPE, "web");
// This must start with the DEFAULT_REMOTE_TYPE above.
static NS_NAMED_LITERAL_STRING(LARGE_ALLOCATION_REMOTE_TYPE,
"webLargeAllocation");
static NS_NAMED_LITERAL_STRING(NO_REMOTE_TYPE, "");
class ContentParent final : public PContentParent
@ -554,8 +557,7 @@ protected:
void OnCompositorUnexpectedShutdown() override;
private:
static nsTArray<ContentParent*>* sBrowserContentParents;
static nsTArray<ContentParent*>* sLargeAllocationContentParents;
static nsClassHashtable<nsStringHashKey, nsTArray<ContentParent*>>* sBrowserContentParents;
static nsTArray<ContentParent*>* sPrivateContent;
static StaticAutoPtr<LinkedList<ContentParent> > sContentParents;
@ -1152,7 +1154,6 @@ private:
nsRefPtrHashtable<nsIDHashKey, GetFilesHelper> mGetFilesPendingRequests;
nsTArray<nsCString> mBlobURLs;
bool mLargeAllocationProcess;
};
} // namespace dom

11
modules/libpref/init/all.js
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@ -2866,6 +2866,17 @@ pref("dom.ipc.plugins.asyncdrawing.enabled", true);
pref("dom.ipc.processCount", 1);
// Override default dom.ipc.processCount for some remote content process types.
pref("dom.ipc.processCount.webLargeAllocation", 2);
// Pref to control whether we use separate content processes for top-level load
// of file:// URIs.
#if defined(NIGHTLY_BUILD)
pref("browser.tabs.remote.separateFileUriProcess", true);
#else
pref("browser.tabs.remote.separateFileUriProcess", false);
#endif
// Enable caching of Moz2D Path objects for SVG geometry elements
pref("svg.path-caching.enabled", true);