void ResourceLoadScheduler::scheduleLoad(ResourceLoader* resourceLoader, ResourceLoadPriority priority)
{
ASSERT(resourceLoader);
ASSERT(priority != ResourceLoadPriorityUnresolved);
LOG(ResourceLoading, "ResourceLoadScheduler::load resource %p '%s'", resourceLoader, resourceLoader->url().string().latin1().data());
#if PLATFORM(IOS)
// If there's a web archive resource for this URL, we don't need to schedule the load since it will never touch the network.
if (!isSuspendingPendingRequests() && resourceLoader->documentLoader()->archiveResourceForURL(resourceLoader->iOSOriginalRequest().url())) {
resourceLoader->startLoading();
return;
}
#else
if (resourceLoader->documentLoader()->archiveResourceForURL(resourceLoader->request().url())) {
resourceLoader->start();
return;
}
#endif
#if PLATFORM(IOS)
HostInformation* host = hostForURL(resourceLoader->iOSOriginalRequest().url(), CreateIfNotFound);
#else
HostInformation* host = hostForURL(resourceLoader->url(), CreateIfNotFound);
#endif
bool hadRequests = host->hasRequests();
host->schedule(resourceLoader, priority);
#if PLATFORM(COCOA) || USE(CFNETWORK)
if (!isSuspendingPendingRequests()) {
// Serve all requests at once to keep the pipeline full at the network layer.
// FIXME: Does this code do anything useful, given that we also set maxRequestsInFlightPerHost to effectively unlimited on these platforms?
servePendingRequests(host, ResourceLoadPriorityVeryLow);
return;
}
#endif
#if PLATFORM(IOS)
if ((priority > ResourceLoadPriorityLow || !resourceLoader->iOSOriginalRequest().url().protocolIsInHTTPFamily() || (priority == ResourceLoadPriorityLow && !hadRequests)) && !isSuspendingPendingRequests()) {
// Try to request important resources immediately.
servePendingRequests(host, priority);
return;
}
#else
if (priority > ResourceLoadPriorityLow || !resourceLoader->url().protocolIsInHTTPFamily() || (priority == ResourceLoadPriorityLow && !hadRequests)) {
// Try to request important resources immediately.
servePendingRequests(host, priority);
return;
}
#endif
notifyDidScheduleResourceRequest(resourceLoader);
// Handle asynchronously so early low priority requests don't
// get scheduled before later high priority ones.
scheduleServePendingRequests();
}
void ResourceLoadScheduler::crossOriginRedirectReceived(ResourceLoader* resourceLoader, const KURL& redirectURL)
{
HostInformation* oldHost = hostForURL(resourceLoader->url());
ASSERT(oldHost);
HostInformation* newHost = hostForURL(redirectURL, CreateIfNotFound);
if (oldHost->name() == newHost->name())
return;
newHost->addLoadInProgress(resourceLoader);
oldHost->remove(resourceLoader);
}
void ResourceLoadScheduler::scheduleLoad(ResourceLoader* resourceLoader, ResourceLoadPriority priority)
{
ASSERT(resourceLoader);
ASSERT(priority != ResourceLoadPriorityUnresolved);
#if !REQUEST_MANAGEMENT_ENABLED
priority = ResourceLoadPriorityHighest;
#endif
LOG(ResourceLoading, "ResourceLoadScheduler::load resource %p '%s'", resourceLoader, resourceLoader->url().string().latin1().data());
// If there's a web archive resource for this URL, we don't need to schedule the load since it will never touch the network.
if (resourceLoader->documentLoader()->archiveResourceForURL(resourceLoader->request().url())) {
resourceLoader->start();
return;
}
HostInformation* host = hostForURL(resourceLoader->url(), CreateIfNotFound);
bool hadRequests = host->hasRequests();
host->schedule(resourceLoader, priority);
if (priority > ResourceLoadPriorityLow || !resourceLoader->url().protocolIsInHTTPFamily() || (priority == ResourceLoadPriorityLow && !hadRequests)) {
// Try to request important resources immediately.
servePendingRequests(host, priority);
return;
}
notifyDidScheduleResourceRequest(resourceLoader);
// Handle asynchronously so early low priority requests don't
// get scheduled before later high priority ones.
scheduleServePendingRequests();
}
void ResourceLoadScheduler::remove(ResourceLoader* resourceLoader)
{
ASSERT(resourceLoader);
HostInformation* host = hostForURL(resourceLoader->url());
if (host)
host->remove(resourceLoader);
scheduleServePendingRequests();
}
void ResourceLoadScheduler::remove(ResourceLoader* resourceLoader)
{
ASSERT(resourceLoader);
HostInformation* host = hostForURL(resourceLoader->url());
if (host)
host->remove(resourceLoader);
#if PLATFORM(IOS)
// ResourceLoader::url() doesn't start returning the correct value until the load starts. If we get canceled before that, we need to look for originalRequest url instead.
// FIXME: ResourceLoader::url() should be made to return a sensible value at all times.
if (!resourceLoader->iOSOriginalRequest().isNull()) {
HostInformation* originalHost = hostForURL(resourceLoader->iOSOriginalRequest().url());
if (originalHost && originalHost != host)
originalHost->remove(resourceLoader);
}
#endif
scheduleServePendingRequests();
}
void NetworkResourceLoadScheduler::receivedRedirect(NetworkResourceLoader* loader, const WebCore::URL& redirectURL)
{
ASSERT(RunLoop::isMain());
LOG(NetworkScheduling, "(NetworkProcess) NetworkResourceLoadScheduler::receivedRedirect loader originally for '%s' redirected to '%s'", loader->request().url().string().utf8().data(), redirectURL.string().utf8().data());
HostRecord* oldHost = loader->hostRecord();
// The load may have been cancelled while the message was in flight from network thread to main thread.
if (!oldHost)
return;
HostRecord* newHost = hostForURL(redirectURL, CreateIfNotFound);
if (oldHost->name() == newHost->name())
return;
oldHost->removeLoader(loader);
newHost->addLoaderInProgress(loader);
}
void NetworkResourceLoadScheduler::scheduleLoader(PassRefPtr<NetworkResourceLoader> loader)
{
ResourceLoadPriority priority = loader->priority();
const ResourceRequest& resourceRequest = loader->request();
LOG(NetworkScheduling, "(NetworkProcess) NetworkResourceLoadScheduler::scheduleLoader resource '%s'", resourceRequest.url().string().utf8().data());
HostRecord* host = hostForURL(resourceRequest.url(), CreateIfNotFound);
bool hadRequests = host->hasRequests();
host->scheduleResourceLoader(loader);
if (priority > ResourceLoadPriorityLow || !resourceRequest.url().protocolIsInHTTPFamily() || (priority == ResourceLoadPriorityLow && !hadRequests)) {
// Try to request important resources immediately.
host->servePendingRequests(priority);
return;
}
// Handle asynchronously so early low priority requests don't get scheduled before later high priority ones.
scheduleServePendingRequests();
}
void ResourceLoadScheduler::scheduleLoad(ResourceLoader* resourceLoader, ResourceLoadPriority priority)
{
ASSERT(resourceLoader);
ASSERT(priority != ResourceLoadPriorityUnresolved);
#if !REQUEST_MANAGEMENT_ENABLED
priority = ResourceLoadPriorityHighest;
#endif
LOG(ResourceLoading, "ResourceLoadScheduler::load resource %p '%s'", resourceLoader, resourceLoader->url().string().latin1().data());
HostInformation* host = hostForURL(resourceLoader->url(), CreateIfNotFound);
bool hadRequests = host->hasRequests();
host->schedule(resourceLoader, priority);
if (priority > ResourceLoadPriorityLow || !resourceLoader->url().protocolInHTTPFamily() || (priority == ResourceLoadPriorityLow && !hadRequests)) {
// Try to request important resources immediately.
servePendingRequests(host, priority);
return;
}
// Handle asynchronously so early low priority requests don't get scheduled before later high priority ones.
InspectorInstrumentation::didScheduleResourceRequest(resourceLoader->frameLoader() ? resourceLoader->frameLoader()->frame()->document() : 0, resourceLoader->url());
scheduleServePendingRequests();
}
void ResourceLoadScheduler::addMainResourceLoad(ResourceLoader* resourceLoader)
{
hostForURL(resourceLoader->url(), CreateIfNotFound)->addLoadInProgress(resourceLoader);
}
