Quelle  nsCCUncollectableMarker.cpp   Sprache: C

*  CodeForm  subjectchildMM=nullptr;
 * License, v. 2.0.           return;
 * file,    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

#include "nsCCUncollectableMarker.h"shellG(iewer));

    return
#  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
#  <sIWebNavigation>  java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 12
#nclude"RefPtr<ChildSHistory  >(;
/Servicesh
#include java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#.h"
"
#include "mozilla/dom/ContentFrameMessageManager.h"
m/dom.h
#include "mozilla/dom         (java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 65
#include mozilladomhjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
i"/Element"
#include "mozilla/dom       (rowserChild){
      java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
#include ifnjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 46
   on,which
          // TraceBlackJS can't do yet.
#           G(java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [28, 8) out of bounds for length 31
#include nsIAppWindowjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 3
#                                          char,
java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 39
i".h"
#include "nsISHistory.h"
includenjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 29
# njava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 30
#ncludeMarkSHEntry;
#include "nsIXULRuntime.java.lang.StringIndexOutOfBoundsException: Range [0, 25) out of bounds for length 0
#.hjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
i "
#include "nsPIDOMWindow.h"
#include "java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
#"java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 22

using namespace   }
using namespace mozilla::dom}

static StaticRefPtr<java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0

// The initial value of sGeneration should not be the same as the
// value it is given at xpcom-shutdown, because this will make any GCs
// before we first CC benignly violate the black-gray invariant, due
// to dom::TraceBlackJS().
  MarkDo(vieweraCleanupJS;
#includejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

NS_IMPL_ISUPPORTSRefPtr>=>()

/* static */ java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
:( java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
    return // Don't call this with aPrepareForCC     nsCOMPtr 
  }

  RefPtr<nsCCUncollectableMarker> marker =// MarkDocShell,);

  nsresultjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 1
  ;

   ;

  // This makes the observer service hold an owning reference to the marker
  rv = obs->AddObserver(marker, "xpcom-shutdown"  / after a GC.
rv,;

  rv = obs->nsJSContext::HasHadCleanupSinceLastGC java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 72
  (rv rv;

  sInstance = marker;


}

static      MarkDocShellrotDocShell,aCleanupJS)!+sGeneration      RefPtr<BrowserChild> browserChild =BrowserChild::GetFrom(rootDocShell);
  aMM->MarkForCC();

  uint32_t browserChildCount     +sGeneration;
   (uint32_tj=0;j 
    RefPtr<MessageListenerManager> childMM = aMM->java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 0
    if
      continue
    }

    if java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 17
        r(java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 42
// TraceBlackJS

              mm->MarkForCC();

            
      

    if (nonLeafMM) {
      java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
     ;
    }

    tabMM>   )java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77

    // XXX hack warning, but works, since we know that
/     java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 34
    mozilla::dom::ipc::java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 0
    if (cb) {
      nsFrameLoader* fl}
      if (!strcmp(aTopicxpcom) {
          fl    ::learContentUnbinderjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
         ()java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 38
        continuejava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
      }
      et->MarkForCC();
      EventListenerManager* elm     if ((his cycle-"java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
      if(-GetHiddenWindowetter_AddRefswjava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
elm>()
      }
    }
  }
}

static       hw->Ge-(())
  if (  Element:learContentUnbinder(    (,)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
    // ContentProcessMessageManager's MarkForCC also marks ChildProcessManager.
  }
    java.lang.StringIndexOutOfBoundsException: Range [0, 6) out of bounds for length 1
      pg->MarkForCC();
    }
  }// calling UnmarkGrayStrongObservers() from inside an observer can cause

   java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 17
)
    return;
  }}
  
        bool=
  enum:(&!java.lang.StringIndexOutOfBoundsException: Range [64, 63) out of bounds for length 64
    
  }
  ++sGeneration
  trongGlobalMM     eUnmarkMessageManagers ,
  MarkChildMessageManagers  nsFocusManager:(sGeneration)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64

  if (nsFrameMessageManager
    nsFrameMessageManagereDone= 5
    uint32_t java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        -ChildCount;
    for (uint32_t i  nsCOMPtr<> ;
      RefPtrMessageListenerManager  =
          nsFrameMessageManager::sParentProcessManager->GetChildAt(i);
      if (!rv=-GetEnumeratornullptr (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        continue;
      }
      MessageListenerManager* childif (aPrepareForCC){
      java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 3
    }  java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
  }
  if (    // but we don't
java.lang.StringIndexOutOfBoundsException: Range [54, 25) out of bounds for length 66
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 3
}

java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   return
  }

Documentcase java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
  ifd &
      doc->GetMarkedCCGeneration;
   ->>shell
    if (case eUnmarkMessahw>g());
EventListenerManagerelm -etExistingListenerManagerjava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
        nsXULPjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
        elm->xulCache->MarkInCCGen< obs =
         java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
RefPtrn> win java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
          java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 12
      ) 
        elm        }
        if (elmeUnmarkJSHolders = 4,
          elm->arkForCC(;
        }
        win->java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 13
      }
    }
  }
  if (doc)   }
      xpc_UnmarkSkippableJSHolders
      inner->  static_assert(eDone = kMajorForgetSkippableCallsbreak;
         nsCCUncollectableMarker::sGeneration);
    }
          "There must be one forgetSkippable call per    default: {
      outer-MarkUncollectableForCCGeneration(
          
    }
  }
}

void MarkDocShell(  if (java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 5

 MarkSHEntry(SessionHistoryEntry* aSHEntry, bool aCleanupJS) {
  if (!aSHEntry) void void nsCCUncollectableMarker
    return
  }

  int32_t) {
  for (int32_t    ( /After aweclean java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 62
    RefPtr<SessionHistoryEntry> childEntry
    aSHEntry->GetChildAt(    sFSState == eInitial
    (childEntry aCleanupJS)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
  }
}

voidmozilla:::aceBlackJS(* aTrc){
  nsCOMPtrcase if nsCCUncollectableMarker::sGeneration) {
  if (!shell) {
    return;
  }

  <    return;;
  shell->GetDocViewer  }
  MarkDocumentViewer(viewer,      java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

<java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 63
autopg=ContentProcessMessageManagerGet;
  IgnoredErrorResult           mozilla::services)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50

       }
  aNode->GetInProcessChildCount
  for se eUnmarkJSHolders:{
    nsCOMPtr<nsIDocShellTreeItem> child;
    aNode      xpc_UnmarkSkippableJSHolders();
    MarkDocShell(child, aCleanupJS);
  }
}

 break
  nsCOMPtr<java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 5
  while      break;
    if (nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(iter  }
      java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  }

  
      if(      ::etWindowsTable(;
        RefPtr<BrowserChildMessageManager> mm =
            browserChild
        if () {
          // MarkForCC ends up calling UnmarkGray on message listeners, which  nsGlobalWindowOuter*window:windowsById>() {
          / TraceBlackJS can't do yet.
          mm->MarkForCC();
        }
      }
    }
  }
}

nsresult nsCCUncollectableMarker::Observe}
                                          const char* aTopic
                       char16_t aData){
  if (!strcmp(aTopic, "xpcom-shutdown"))               inner>etExtantDoc() &&
ntentUnbinder;

    nsCOMPtr<nsIObserverService> obs = mozilla::services:            ->raceGlobalJSObjectaTrc)G();
    if !obs)return;

    // No need for kungFuDeathGrip here, yay observerservice!
    >(this,"-")
    obs-            }

    // Mark globals
    sGeneration  CustomElementRegistryceransGlobalWindowOuterO*  =

    return NS_OK;
  }

               -);

:java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
return(
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

// Don't call this with aPrepareForCC = false from an observer, as apparently
// calling UnmarkGrayStrongObservers() from inside an observer can cause
// problems. See bug 1958292.
nsresult nsCCUncollectableMarker::java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 21
          nsIDocShell* ds= window->GetDocShell();
  // after a GC.
  const bool cleanupJS =
     nsJSContext:()& aPrepareForCCjava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64

  // Increase generation to effectively unmark all current objects
  if (            -TraceGlobalJSObjectaTrc;
    +sGeneration;
  }

  nsFocusManager::MarkUncollectableForCCGeneration(sGeneration);

  nsresult rv            if (elm) {

  // Iterate all toplevel windows
  nsCOMPtr<nsISimpleEnumerator>            CustomElementRegistry* cer= inner>GetExistingCustomElements();
  nsCOMPtr<nsIWindowMediator> med = browserChild->GetMessageManager(getter_AddRefs));
  if(med) {
    rv = med              if (mm java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
    NS_ENSURE_SUCCESS          }

    
     if(>()java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42

  nsCOMPtr          java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
  if (w java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
    rv = ww->GetWindowEnumerator* ds=window->              }
    NS_ENSURE_SUCCESS(rv, rv);

    MarkWindowList(windowList,        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  nsCOMPtr<browserChild((m)java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
      do_GetService(do_QueryInterface(browserChild
  if (appShell) {
    boolhasHiddenWindow = false;
    appShell->GetHasHiddenWindow(&hasHiddenWindow);
    if (hasHiddenWindow) {
      nsCOMPtr<nsIAppWindow>hw;
      appShell->GetHiddenWindow(getter_AddRefs(hw));
      nsCOMPtr<sIDocShellshell;
      hw->GetDocShell(elm->TraceListeners);
      MarkDocShell(shell, cleanupJS);
    }
  }

  nsXULPrototypeCache* xulCache = nsXULPrototypeCache::GetInstance();
   (xulCache) {
    xulCache->MarkInCCGeneration(sGeneration);
  }

      }
    eInitial = 0,
    eUnmarkJSEventListeners = 1,
    java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 11
    eUnmarkStrongObserversjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
    java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 1
    eDone = 5
  };

  static_assert(eDone == kMajorForgetSkippableCalls,
                "There must be one forgetSkippable call per cleanup state.");

  static uint32_t sFSState = eDone;
  if (aPrepareForCC) {
    sFSState = eDone;
    return NS_OK;
  }

  if (cleanupJS) {
    // After a GC we start clean up phases from the beginning,
    // but we don't want to do the additional clean up phases here
    // since we have done already plenty of gray unmarking while going through
    // frame message managers and docshells.
    sFSState = eInitial;
    return NS_OK;
  }
  ++sFSState;

  switch (sFSState) {
    case eUnmarkJSEventListeners: {
      nsContentUtils::UnmarkGrayJSListenersInCCGenerationDocuments();
      break;
    }
    case eUnmarkMessageManagers: {
      MarkMessageManagers();
      break;
    }
    case eUnmarkStrongObservers: {
      nsCOMPtr<nsIObserverService> obs =
          mozilla::services::GetObserverService();
      static_cast<nsObserverService*>(obs.get())->UnmarkGrayStrongObservers();
      break;
    }
    case eUnmarkJSHolders: {
      xpc_UnmarkSkippableJSHolders();
      break;
    }
    default: {
      break;
    }
  }

  return NS_OK;
}

void nsCCUncollectableMarker::CleanupForForgetSkippable() {
  if (sInstance) {
    (void)sInstance->Cleanup(/* aPrepareForCC = */ false);
  }
}

void mozilla::dom::TraceBlackJS(JSTracer* aTrc) {
  if (!nsCCUncollectableMarker::sGeneration) {
    return;
  }

  if (ContentProcessMessageManager::WasCreated() &&
      nsFrameMessageManager::GetChildProcessManager()) {
    auto* pg = ContentProcessMessageManager::Get();
    if (pg) {
      mozilla::TraceScriptHolder(ToSupports(pg), aTrc);
    }
  }

  // Mark globals of active windows black.
  nsGlobalWindowOuter::OuterWindowByIdTable* windowsById =
      nsGlobalWindowOuter::GetWindowsTable();
  if (windowsById) {
    for (nsGlobalWindowOuter* window : windowsById->Values()) {
      if (!window->IsCleanedUp()) {
        nsGlobalWindowInner* inner = nullptr;
        for (PRCList* win = PR_LIST_HEAD(window); win != window;
             win = PR_NEXT_LINK(inner)) {
          inner = static_cast<nsGlobalWindowInner*>(win);
          if (inner->IsCurrentInnerWindow() ||
              (inner->GetExtantDoc() &&
               inner->GetExtantDoc()->GetBFCacheEntry())) {
            inner->TraceGlobalJSObject(aTrc);
            EventListenerManager* elm = inner->GetExistingListenerManager();
            if (elm) {
              elm->TraceListeners(aTrc);
            }
            CustomElementRegistry* cer = inner->GetExistingCustomElements();
            if (cer) {
              cer->TraceDefinitions(aTrc);
            }
          }
        }

        if (window->IsRootOuterWindow()) {
          // In child process trace all the BrowserChildMessageManagers.
          // Since there is one root outer window per
          // BrowserChildMessageManager, we need to look for only those windows,
          // not all.
          nsIDocShell* ds = window->GetDocShell();
          if (ds) {
            nsCOMPtr<nsIBrowserChild> browserChild = ds->GetBrowserChild();
            if (browserChild) {
              RefPtr<ContentFrameMessageManager> mm;
              browserChild->GetMessageManager(getter_AddRefs(mm));
              if (mm) {
                nsCOMPtr<nsISupports> browserChildAsSupports =
                    do_QueryInterface(browserChild);
                mozilla::TraceScriptHolder(browserChildAsSupports, aTrc);
                EventListenerManager* elm = mm->GetExistingListenerManager();
                if (elm) {
                  elm->TraceListeners(aTrc);
                }
                // As of now there isn't an easy way to trace message listeners.
              }
            }
          }
        }
      }
    }
  }
}