gecko-dev/netwerk/protocol/http/nsHttpActivityDistributor.cpp

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5.3 KiB
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Michal Novotny <michal.novotny@gmail.com>.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsHttpActivityDistributor.h"
#include "nsIChannel.h"
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsAutoLock.h"
#include "nsNetUtil.h"
#include "nsThreadUtils.h"
class nsHttpActivityEvent : public nsRunnable
{
public:
nsHttpActivityEvent(nsISupports *aHttpChannel,
PRUint32 aActivityType,
PRUint32 aActivitySubtype,
PRTime aTimestamp,
PRUint64 aExtraSizeData,
const nsACString & aExtraStringData,
nsCOMArray<nsIHttpActivityObserver> *aObservers)
: mHttpChannel(aHttpChannel)
, mActivityType(aActivityType)
, mActivitySubtype(aActivitySubtype)
, mTimestamp(aTimestamp)
, mExtraSizeData(aExtraSizeData)
, mExtraStringData(aExtraStringData)
, mObservers(*aObservers)
{
}
NS_IMETHOD Run()
{
for (PRInt32 i = 0 ; i < mObservers.Count() ; i++)
mObservers[i]->ObserveActivity(mHttpChannel, mActivityType,
mActivitySubtype, mTimestamp,
mExtraSizeData, mExtraStringData);
return NS_OK;
}
private:
virtual ~nsHttpActivityEvent()
{
}
nsCOMPtr<nsISupports> mHttpChannel;
PRUint32 mActivityType;
PRUint32 mActivitySubtype;
PRTime mTimestamp;
PRUint64 mExtraSizeData;
nsCString mExtraStringData;
nsCOMArray<nsIHttpActivityObserver> mObservers;
};
NS_IMPL_THREADSAFE_ISUPPORTS2(nsHttpActivityDistributor,
nsIHttpActivityDistributor,
nsIHttpActivityObserver)
nsHttpActivityDistributor::nsHttpActivityDistributor()
: mLock(nsnull)
{
}
nsHttpActivityDistributor::~nsHttpActivityDistributor()
{
if (mLock)
PR_DestroyLock(mLock);
}
NS_IMETHODIMP
nsHttpActivityDistributor::ObserveActivity(nsISupports *aHttpChannel,
PRUint32 aActivityType,
PRUint32 aActivitySubtype,
PRTime aTimestamp,
PRUint64 aExtraSizeData,
const nsACString & aExtraStringData)
{
nsRefPtr<nsIRunnable> event;
{
nsAutoLock lock(mLock);
if (!mObservers.Count())
return NS_OK;
event = new nsHttpActivityEvent(aHttpChannel, aActivityType,
aActivitySubtype, aTimestamp,
aExtraSizeData, aExtraStringData,
&mObservers);
}
NS_ENSURE_TRUE(event, NS_ERROR_OUT_OF_MEMORY);
return NS_DispatchToMainThread(event);
}
NS_IMETHODIMP
nsHttpActivityDistributor::GetIsActive(PRBool *isActive)
{
NS_ENSURE_ARG_POINTER(isActive);
nsAutoLock lock(mLock);
*isActive = !!mObservers.Count();
return NS_OK;
}
NS_IMETHODIMP
nsHttpActivityDistributor::AddObserver(nsIHttpActivityObserver *aObserver)
{
nsAutoLock lock(mLock);
if (!mObservers.AppendObject(aObserver))
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
NS_IMETHODIMP
nsHttpActivityDistributor::RemoveObserver(nsIHttpActivityObserver *aObserver)
{
nsAutoLock lock(mLock);
if (!mObservers.RemoveObject(aObserver))
return NS_ERROR_FAILURE;
return NS_OK;
}
nsresult
nsHttpActivityDistributor::Init()
{
NS_ENSURE_TRUE(!mLock, NS_ERROR_ALREADY_INITIALIZED);
mLock = PR_NewLock();
if (!mLock)
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}