gecko-dev/netwerk/cache/nsDiskCacheEntry.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* ***** 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 nsDiskCacheEntry.cpp, released
* May 10, 2001.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Gordon Sheridan <gordon@netscape.com>
* Patrick C. Beard <beard@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the 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 "nsDiskCache.h"
#include "nsDiskCacheEntry.h"
#include "nsDiskCacheBinding.h"
#include "nsCRT.h"
#include "nsCache.h"
#include "nsISerializable.h"
#include "nsSerializationHelper.h"
/******************************************************************************
* nsDiskCacheEntry
*****************************************************************************/
/**
* CreateCacheEntry()
*
* Creates an nsCacheEntry and sets all fields except for the binding.
*/
nsCacheEntry *
nsDiskCacheEntry::CreateCacheEntry(nsCacheDevice * device)
{
nsCacheEntry * entry = nsnull;
nsresult rv = nsCacheEntry::Create(Key(),
nsICache::STREAM_BASED,
nsICache::STORE_ON_DISK,
device,
&entry);
if (NS_FAILED(rv) || !entry) return nsnull;
entry->SetFetchCount(mFetchCount);
entry->SetLastFetched(mLastFetched);
entry->SetLastModified(mLastModified);
entry->SetExpirationTime(mExpirationTime);
entry->SetCacheDevice(device);
// XXX why does nsCacheService have to fill out device in BindEntry()?
entry->SetDataSize(mDataSize);
rv = entry->UnflattenMetaData(MetaData(), mMetaDataSize);
if (NS_FAILED(rv)) {
delete entry;
return nsnull;
}
// Restore security info, if present
const char* info = entry->GetMetaDataElement("security-info");
if (info) {
nsCOMPtr<nsISupports> infoObj;
NS_DeserializeObject(nsDependentCString(info), getter_AddRefs(infoObj));
entry->SetSecurityInfo(infoObj);
}
return entry;
}
/******************************************************************************
* nsDiskCacheEntryInfo
*****************************************************************************/
NS_IMPL_ISUPPORTS1(nsDiskCacheEntryInfo, nsICacheEntryInfo)
NS_IMETHODIMP nsDiskCacheEntryInfo::GetClientID(char ** clientID)
{
NS_ENSURE_ARG_POINTER(clientID);
return ClientIDFromCacheKey(nsDependentCString(mDiskEntry->Key()), clientID);
}
extern const char DISK_CACHE_DEVICE_ID[];
NS_IMETHODIMP nsDiskCacheEntryInfo::GetDeviceID(char ** deviceID)
{
NS_ENSURE_ARG_POINTER(deviceID);
*deviceID = NS_strdup(mDeviceID);
return *deviceID ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP nsDiskCacheEntryInfo::GetKey(nsACString &clientKey)
{
return ClientKeyFromCacheKey(nsDependentCString(mDiskEntry->Key()), clientKey);
}
NS_IMETHODIMP nsDiskCacheEntryInfo::GetFetchCount(PRInt32 *aFetchCount)
{
NS_ENSURE_ARG_POINTER(aFetchCount);
*aFetchCount = mDiskEntry->mFetchCount;
return NS_OK;
}
NS_IMETHODIMP nsDiskCacheEntryInfo::GetLastFetched(PRUint32 *aLastFetched)
{
NS_ENSURE_ARG_POINTER(aLastFetched);
*aLastFetched = mDiskEntry->mLastFetched;
return NS_OK;
}
NS_IMETHODIMP nsDiskCacheEntryInfo::GetLastModified(PRUint32 *aLastModified)
{
NS_ENSURE_ARG_POINTER(aLastModified);
*aLastModified = mDiskEntry->mLastModified;
return NS_OK;
}
NS_IMETHODIMP nsDiskCacheEntryInfo::GetExpirationTime(PRUint32 *aExpirationTime)
{
NS_ENSURE_ARG_POINTER(aExpirationTime);
*aExpirationTime = mDiskEntry->mExpirationTime;
return NS_OK;
}
NS_IMETHODIMP nsDiskCacheEntryInfo::IsStreamBased(bool *aStreamBased)
{
NS_ENSURE_ARG_POINTER(aStreamBased);
*aStreamBased = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP nsDiskCacheEntryInfo::GetDataSize(PRUint32 *aDataSize)
{
NS_ENSURE_ARG_POINTER(aDataSize);
*aDataSize = mDiskEntry->mDataSize;
return NS_OK;
}