gecko-dev/netwerk/cache/nsDiskCacheEntry.cpp
2012-05-21 12:12:37 +01:00

135 lines
4.0 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 "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;
rv = NS_DeserializeObject(nsDependentCString(info),
getter_AddRefs(infoObj));
if (NS_FAILED(rv)) {
delete entry;
return nsnull;
}
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 = true;
return NS_OK;
}
NS_IMETHODIMP nsDiskCacheEntryInfo::GetDataSize(PRUint32 *aDataSize)
{
NS_ENSURE_ARG_POINTER(aDataSize);
*aDataSize = mDiskEntry->mDataSize;
return NS_OK;
}