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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 ;*; */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsAutoPtr.h"
#include "nsIObserverService.h"
#include "nsIUUIDGenerator.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "RequestContextService.h"
#include "mozilla/Atomics.h"
#include "mozilla/Services.h"
#include "mozilla/net/PSpdyPush.h"
namespace mozilla {
namespace net {
// nsIRequestContext
class RequestContext final : public nsIRequestContext
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIREQUESTCONTEXT
explicit RequestContext(const nsID& id);
private:
virtual ~RequestContext();
nsID mID;
char mCID[NSID_LENGTH];
Atomic<uint32_t> mBlockingTransactionCount;
nsAutoPtr<SpdyPushCache> mSpdyCache;
nsCString mUserAgentOverride;
};
NS_IMPL_ISUPPORTS(RequestContext, nsIRequestContext)
RequestContext::RequestContext(const nsID& aID)
: mBlockingTransactionCount(0)
{
mID = aID;
mID.ToProvidedString(mCID);
}
RequestContext::~RequestContext()
{
}
NS_IMETHODIMP
RequestContext::GetBlockingTransactionCount(uint32_t *aBlockingTransactionCount)
{
NS_ENSURE_ARG_POINTER(aBlockingTransactionCount);
*aBlockingTransactionCount = mBlockingTransactionCount;
return NS_OK;
}
NS_IMETHODIMP
RequestContext::AddBlockingTransaction()
{
mBlockingTransactionCount++;
return NS_OK;
}
NS_IMETHODIMP
RequestContext::RemoveBlockingTransaction(uint32_t *outval)
{
NS_ENSURE_ARG_POINTER(outval);
mBlockingTransactionCount--;
*outval = mBlockingTransactionCount;
return NS_OK;
}
NS_IMETHODIMP
RequestContext::GetSpdyPushCache(mozilla::net::SpdyPushCache **aSpdyPushCache)
{
*aSpdyPushCache = mSpdyCache.get();
return NS_OK;
}
NS_IMETHODIMP
RequestContext::SetSpdyPushCache(mozilla::net::SpdyPushCache *aSpdyPushCache)
{
mSpdyCache = aSpdyPushCache;
return NS_OK;
}
NS_IMETHODIMP
RequestContext::GetID(nsID *outval)
{
NS_ENSURE_ARG_POINTER(outval);
*outval = mID;
return NS_OK;
}
NS_IMETHODIMP
RequestContext::GetUserAgentOverride(nsACString& aUserAgentOverride)
{
aUserAgentOverride = mUserAgentOverride;
return NS_OK;
}
NS_IMETHODIMP
RequestContext::SetUserAgentOverride(const nsACString& aUserAgentOverride)
{
mUserAgentOverride = aUserAgentOverride;
return NS_OK;
}
//nsIRequestContextService
RequestContextService *RequestContextService::sSelf = nullptr;
NS_IMPL_ISUPPORTS(RequestContextService, nsIRequestContextService, nsIObserver)
RequestContextService::RequestContextService()
{
MOZ_ASSERT(!sSelf, "multiple rcs instances!");
MOZ_ASSERT(NS_IsMainThread());
sSelf = this;
}
RequestContextService::~RequestContextService()
{
MOZ_ASSERT(NS_IsMainThread());
Shutdown();
sSelf = nullptr;
}
nsresult
RequestContextService::Init()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (!obs) {
return NS_ERROR_NOT_AVAILABLE;
}
return obs->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);
}
void
RequestContextService::Shutdown()
{
MOZ_ASSERT(NS_IsMainThread());
mTable.Clear();
}
/* static */ nsresult
RequestContextService::Create(nsISupports *aOuter, const nsIID& aIID, void **aResult)
{
MOZ_ASSERT(NS_IsMainThread());
if (aOuter != nullptr) {
return NS_ERROR_NO_AGGREGATION;
}
RefPtr<RequestContextService> svc = new RequestContextService();
nsresult rv = svc->Init();
NS_ENSURE_SUCCESS(rv, rv);
return svc->QueryInterface(aIID, aResult);
}
NS_IMETHODIMP
RequestContextService::GetRequestContext(const nsID& rcID, nsIRequestContext **rc)
{
MOZ_ASSERT(NS_IsMainThread());
NS_ENSURE_ARG_POINTER(rc);
*rc = nullptr;
if (!mTable.Get(rcID, rc)) {
nsCOMPtr<nsIRequestContext> newSC = new RequestContext(rcID);
mTable.Put(rcID, newSC);
newSC.swap(*rc);
}
return NS_OK;
}
NS_IMETHODIMP
RequestContextService::NewRequestContextID(nsID *rcID)
{
MOZ_ASSERT(NS_IsMainThread());
if (!mUUIDGen) {
nsresult rv;
mUUIDGen = do_GetService("@mozilla.org/uuid-generator;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
}
return mUUIDGen->GenerateUUIDInPlace(rcID);
}
NS_IMETHODIMP
RequestContextService::RemoveRequestContext(const nsID& rcID)
{
MOZ_ASSERT(NS_IsMainThread());
mTable.Remove(rcID);
return NS_OK;
}
NS_IMETHODIMP
RequestContextService::Observe(nsISupports *subject, const char *topic,
const char16_t *data_unicode)
{
MOZ_ASSERT(NS_IsMainThread());
if (!strcmp(NS_XPCOM_SHUTDOWN_OBSERVER_ID, topic)) {
Shutdown();
}
return NS_OK;
}
} // ::mozilla::net
} // ::mozilla
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