public LogExtentEnumerator(LogExtentCollection collection)
{
this.collection = collection;
this.version = this.collection.Version;
SafeFileHandle logHandle = this.collection.Store.Handle;
CLFS_SCAN_CONTEXT scanContext = new CLFS_SCAN_CONTEXT();
try
{
List <LogExtent> extents = new List <LogExtent>();
CLFS_INFORMATION logInfo;
this.collection.Store.GetLogFileInformation(out logInfo);
if (logInfo.TotalContainers > 0)
{
UnsafeNativeMethods.CreateLogContainerScanContextSync(
logHandle,
0,
logInfo.TotalContainers,
CLFS_SCAN_MODE.CLFS_SCAN_FORWARD,
ref scanContext);
long containerPointer = scanContext.pinfoContainer.ToInt64();
CLFS_CONTAINER_INFORMATION_WRAPPER info;
info = new CLFS_CONTAINER_INFORMATION_WRAPPER();
int infoSize;
infoSize = Marshal.SizeOf(typeof(CLFS_CONTAINER_INFORMATION_WRAPPER));
for (uint i = 0; i < scanContext.cContainersReturned; i++)
{
Marshal.PtrToStructure(new IntPtr(containerPointer),
info);
LogExtent extent = new LogExtent(
info.info.GetActualFileName(logHandle),
info.info.FileSize,
(LogExtentState)info.info.State);
extents.Add(extent);
containerPointer += infoSize;
}
}
this.innerEnum = extents.GetEnumerator();
}
finally
{
if ((scanContext.eScanMode & CLFS_SCAN_MODE.CLFS_SCAN_INITIALIZED) != 0)
{
UnsafeNativeMethods.ScanLogContainersSyncClose(
ref scanContext);
}
}
}
void CommonInitialize(bool writeOnly)
{
if (!ThreadPool.BindHandle(this.logFile))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new IOException(SR.GetString(SR.IO_BindFailed)));
}
this.logManagement = new LogManagementAsyncResult(this);
if (!writeOnly)
{
CLFS_INFORMATION info;
GetLogFileInformation(out info);
this.archivable = ((info.Attributes &
Const.FILE_ATTRIBUTE_ARCHIVE) != 0);
this.extents = new LogExtentCollection(this);
this.logPolicy = new LogPolicy(this);
}
}