private void OnDestroyPage(SecurityCriticalDataForSet <IntPtr> ptsPage, bool enterContext)
{
Invariant.Assert(ptsPage.Value != IntPtr.Zero, "Invalid page object.");
if (!this.Disposed)
{
Invariant.Assert(this._pages != null, "Collection of pages does not exist.");
Invariant.Assert(this._pages.Contains(ptsPage.Value), "Page does not exist.");
try
{
if (enterContext)
{
this.Enter();
}
PTS.Validate(PTS.FsDestroyPage(this._ptsHost.Context, ptsPage.Value));
}
finally
{
if (enterContext)
{
this.Leave();
}
this._pages.Remove(ptsPage.Value);
}
}
}
/// <summary>
/// Destroys PTS page.
/// </summary>
/// <param name="ptsPage">Pointer to PTS Page object that should be destroyed.</param>
/// <param name="enterContext">Whether needs to enter PTS Context.</param>
private void OnDestroyPage(SecurityCriticalDataForSet <IntPtr> ptsPage, bool enterContext)
{
Invariant.Assert(ptsPage.Value != IntPtr.Zero, "Invalid page object.");
// Dispatcher may invoke this operation when PtsContext is already explicitly
// disposed.
if (!this.Disposed)
{
Invariant.Assert(_pages != null, "Collection of pages does not exist.");
Invariant.Assert(_pages.Contains(ptsPage.Value), "Page does not exist.");
// Destroy given page.
// It is necessary to enter PTS Context when executing any PTS methods.
try
{
if (enterContext)
{
Enter();
}
PTS.Validate(PTS.FsDestroyPage(_ptsHost.Context, ptsPage.Value));
}
finally
{
if (enterContext)
{
Leave();
}
_pages.Remove(ptsPage.Value);
}
}
}
public void Dispose()
{
if (Interlocked.CompareExchange(ref this._disposed, 1, 0) == 0)
{
try
{
this.Enter();
for (int i = 0; i < this._pageBreakRecords.Count; i++)
{
Invariant.Assert((IntPtr)this._pageBreakRecords[i] != IntPtr.Zero, "Invalid break record object");
PTS.Validate(PTS.FsDestroyPageBreakRecord(this._ptsHost.Context, (IntPtr)this._pageBreakRecords[i]));
}
}
finally
{
this.Leave();
this._pageBreakRecords = null;
}
try
{
this.Enter();
for (int i = 0; i < this._pages.Count; i++)
{
Invariant.Assert((IntPtr)this._pages[i] != IntPtr.Zero, "Invalid break record object");
PTS.Validate(PTS.FsDestroyPage(this._ptsHost.Context, (IntPtr)this._pages[i]));
}
}
finally
{
this.Leave();
this._pages = null;
}
if (Invariant.Strict && this._unmanagedHandles != null)
{
for (int i = 0; i < this._unmanagedHandles.Length; i++)
{
object obj = this._unmanagedHandles[i].Obj;
if (obj != null)
{
Invariant.Assert(obj is BaseParagraph || obj is Section || obj is LineBreakRecord, "One of PTS Client objects is not properly disposed.");
}
}
}
this._ptsHost = null;
this._unmanagedHandles = null;
this._callbackException = null;
this._disposeCompleted = true;
}
}
//-------------------------------------------------------------------
//
// Internal Methods
//
//-------------------------------------------------------------------
#region Internal Methods
/// <summary>
/// Destroy all unmanaged resources associated with the PtsContext.
/// </summary>
public void Dispose()
{
int index;
// Do actual dispose only once.
if (Interlocked.CompareExchange(ref _disposed, 1, 0) == 0)
{
// Destroy all page break records. The collection is allocated during creation
// of the context, and can be only destroyed during dispose process.
// It is necessary to enter PTS Context when executing any PTS methods.
try
{
Enter();
for (index = 0; index < _pageBreakRecords.Count; index++)
{
Invariant.Assert(((IntPtr)_pageBreakRecords[index]) != IntPtr.Zero, "Invalid break record object");
PTS.Validate(PTS.FsDestroyPageBreakRecord(_ptsHost.Context, (IntPtr)_pageBreakRecords[index]));
}
}
finally
{
Leave();
_pageBreakRecords = null;
}
// Destroy all pages. The collection is allocated during creation
// of the context, and can be only destroyed during dispose process.
// It is necessary to enter PTS Context when executing any PTS methods.
try
{
Enter();
for (index = 0; index < _pages.Count; index++)
{
Invariant.Assert(((IntPtr)_pages[index]) != IntPtr.Zero, "Invalid break record object");
PTS.Validate(PTS.FsDestroyPage(_ptsHost.Context, (IntPtr)_pages[index]));
}
}
finally
{
Leave();
_pages = null;
}
if (Invariant.Strict && _unmanagedHandles != null)
{
// Verify that PtsContext does not contain any reference to objects.
// Because order of finalizers is not deterministic, only objects
// that can be part of the NameTable are allowed here.
for (index = 0; index < _unmanagedHandles.Length; ++index)
{
Object obj = _unmanagedHandles[index].Obj;
if (obj != null)
{
Invariant.Assert(
obj is BaseParagraph ||
obj is Section ||
obj is MS.Internal.PtsHost.LineBreakRecord, // Suppress line break record leak, looks like a PTS issue but we cannot
// get a firm repro for now. Workaround for bug #1294210.
"One of PTS Client objects is not properly disposed.");
#if DEBUG
// Make sure that FigureParagraphs are only used by TextParagraph
if (obj is FigureParagraph || obj is FloaterParagraph)
{
bool found = false;
for (int i = 0; i < _unmanagedHandles.Length; ++i)
{
Object objDbg = _unmanagedHandles[i].Obj;
if (objDbg is TextParagraph)
{
List <AttachedObject> attachedObjects = ((TextParagraph)objDbg).AttachedObjectDbg;
if (attachedObjects != null)
{
foreach (AttachedObject attachedObject in attachedObjects)
{
if (attachedObject.Para == obj)
{
found = true;
break;
}
}
}
if (found)
{
break;
}
}
}
Invariant.Assert(found, "FigureParagraph is not properly disposed.");
}
#endif
}
}
}
_ptsHost = null;
_unmanagedHandles = null;
_callbackException = null;
_disposeCompleted = true;
}
}