The Tor Browser: netwerk/cache2/CacheIndexIterator.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #include "CacheLog.h"

     6 #include "CacheIndexIterator.h"

     7 #include "CacheIndex.h"

     8 #include "nsString.h"

     9 #include "mozilla/DebugOnly.h"

    12 namespace mozilla {

    13 namespace net {

    15 CacheIndexIterator::CacheIndexIterator(CacheIndex *aIndex, bool aAddNew)

    16   : mStatus(NS_OK)

    17   , mIndex(aIndex)

    18   , mAddNew(aAddNew)

    19 {

    20   LOG(("CacheIndexIterator::CacheIndexIterator() [this=%p]", this));

    21 }

    23 CacheIndexIterator::~CacheIndexIterator()

    24 {

    25   LOG(("CacheIndexIterator::~CacheIndexIterator() [this=%p]", this));

    27   Close();

    28 }

    30 nsresult

    31 CacheIndexIterator::GetNextHash(SHA1Sum::Hash *aHash)

    32 {

    33   LOG(("CacheIndexIterator::GetNextHash() [this=%p]", this));

    35   CacheIndexAutoLock lock(mIndex);

    37   if (NS_FAILED(mStatus)) {

    38     return mStatus;

    39   }

    41   if (!mRecords.Length()) {

    42     CloseInternal(NS_ERROR_NOT_AVAILABLE);

    43     return mStatus;

    44   }

    46   memcpy(aHash, mRecords[mRecords.Length() - 1]->mHash, sizeof(SHA1Sum::Hash));

    47   mRecords.RemoveElementAt(mRecords.Length() - 1);

    49   return NS_OK;

    50 }

    52 nsresult

    53 CacheIndexIterator::Close()

    54 {

    55   LOG(("CacheIndexIterator::Close() [this=%p]", this));

    57   CacheIndexAutoLock lock(mIndex);

    59   return CloseInternal(NS_ERROR_NOT_AVAILABLE);

    60 }

    62 nsresult

    63 CacheIndexIterator::CloseInternal(nsresult aStatus)

    64 {

    65   LOG(("CacheIndexIterator::CloseInternal() [this=%p, status=0x%08x]", this,

    66        aStatus));

    68   // Make sure status will be a failure

    69   MOZ_ASSERT(NS_FAILED(aStatus));

    70   if (NS_SUCCEEDED(aStatus)) {

    71     aStatus = NS_ERROR_UNEXPECTED;

    72   }

    74   if (NS_FAILED(mStatus)) {

    75     return NS_ERROR_NOT_AVAILABLE;

    76   }

    78   DebugOnly<bool> removed = mIndex->mIterators.RemoveElement(this);

    79   MOZ_ASSERT(removed);

    80   mStatus = aStatus;

    82   return NS_OK;

    83 }

    85 void

    86 CacheIndexIterator::AddRecord(CacheIndexRecord *aRecord)

    87 {

    88   LOG(("CacheIndexIterator::AddRecord() [this=%p, record=%p]", this, aRecord));

    90   mRecords.AppendElement(aRecord);

    91 }

    93 void

    94 CacheIndexIterator::AddRecords(const nsTArray<CacheIndexRecord *> &aRecords)

    95 {

    96   LOG(("CacheIndexIterator::AddRecords() [this=%p]", this));

    98   mRecords.AppendElements(aRecords);

    99 }

   101 bool

   102 CacheIndexIterator::RemoveRecord(CacheIndexRecord *aRecord)

   103 {

   104   LOG(("CacheIndexIterator::RemoveRecord() [this=%p, record=%p]", this,

   105        aRecord));

   107   return mRecords.RemoveElement(aRecord);

   108 }

   110 bool

   111 CacheIndexIterator::ReplaceRecord(CacheIndexRecord *aOldRecord,

   112                                   CacheIndexRecord *aNewRecord)

   113 {

   114   LOG(("CacheIndexIterator::ReplaceRecord() [this=%p, oldRecord=%p, "

   115        "newRecord=%p]", this, aOldRecord, aNewRecord));

   117   if (RemoveRecord(aOldRecord)) {

   118     AddRecord(aNewRecord);

   119     return true;

   120   }

   122   return false;

   123 }

   125 } // net

   126 } // mozilla

The Tor Browser / file revision