parser/html/nsHtml5TreeOpStage.cpp

   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/. */
   4
   5 #include "nsHtml5TreeOpStage.h"
   6
   7 nsHtml5TreeOpStage::nsHtml5TreeOpStage()
   8  : mMutex("nsHtml5TreeOpStage mutex")
   9 {
  10 }
  11
  12 nsHtml5TreeOpStage::~nsHtml5TreeOpStage()
  13 {
  14 }
  15
  16 void
  17 nsHtml5TreeOpStage::MoveOpsFrom(nsTArray<nsHtml5TreeOperation>& aOpQueue)
  18 {
  19   mozilla::MutexAutoLock autoLock(mMutex);
  20   if (mOpQueue.IsEmpty()) {
  21     mOpQueue.SwapElements(aOpQueue);
  22   } else {
  23     mOpQueue.MoveElementsFrom(aOpQueue);
  24   }
  25 }
  26
  27 void
  28 nsHtml5TreeOpStage::MoveOpsAndSpeculativeLoadsTo(nsTArray<nsHtml5TreeOperation>& aOpQueue,
  29     nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue)
  30 {
  31   mozilla::MutexAutoLock autoLock(mMutex);
  32   if (aOpQueue.IsEmpty()) {
  33     mOpQueue.SwapElements(aOpQueue);
  34   } else {
  35     aOpQueue.MoveElementsFrom(mOpQueue);
  36   }
  37   if (aSpeculativeLoadQueue.IsEmpty()) {
  38     mSpeculativeLoadQueue.SwapElements(aSpeculativeLoadQueue);
  39   } else {
  40     aSpeculativeLoadQueue.MoveElementsFrom(mSpeculativeLoadQueue);
  41   }
  42 }
  43
  44 void
  45 nsHtml5TreeOpStage::MoveSpeculativeLoadsFrom(nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue)
  46 {
  47   mozilla::MutexAutoLock autoLock(mMutex);
  48   if (mSpeculativeLoadQueue.IsEmpty()) {
  49     mSpeculativeLoadQueue.SwapElements(aSpeculativeLoadQueue);
  50   } else {
  51     mSpeculativeLoadQueue.MoveElementsFrom(aSpeculativeLoadQueue);
  52   }
  53 }
  54
  55 void
  56 nsHtml5TreeOpStage::MoveSpeculativeLoadsTo(nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue)
  57 {
  58   mozilla::MutexAutoLock autoLock(mMutex);
  59   if (aSpeculativeLoadQueue.IsEmpty()) {
  60     mSpeculativeLoadQueue.SwapElements(aSpeculativeLoadQueue);
  61   } else {
  62     aSpeculativeLoadQueue.MoveElementsFrom(mSpeculativeLoadQueue);
  63   }
  64 }
  65
  66 #ifdef DEBUG
  67 void
  68 nsHtml5TreeOpStage::AssertEmpty()
  69 {
  70   mozilla::MutexAutoLock autoLock(mMutex);
  71   // This shouldn't really need the mutex
  72   NS_ASSERTION(mOpQueue.IsEmpty(), "The stage was supposed to be empty.");
  73 }
  74 #endif