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//
// System.Diagnostics.EventLogEntryCollection.cs
//
// Authors:
// Jonathan Pryor (jonpryor@vt.edu)
//
// (C) 2002 Jonathan Pryor
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Diagnostics;
namespace System.Diagnostics {
public class EventLogEntryCollection : ICollection, IEnumerable {
readonly EventLogImpl _impl;
internal EventLogEntryCollection(EventLogImpl impl)
{
_impl = impl;
}
public int Count {
get { return _impl.EntryCount; }
}
public virtual EventLogEntry this [int index] {
get { return _impl[index]; }
}
bool ICollection.IsSynchronized {
get { return false; }
}
object ICollection.SyncRoot {
get { return this; }
}
public void CopyTo (EventLogEntry[] eventLogEntries, int index)
{
EventLogEntry[] entries = _impl.GetEntries ();
Array.Copy (entries, 0, eventLogEntries, index, entries.Length);
}
public IEnumerator GetEnumerator ()
{
return new EventLogEntryEnumerator (_impl);
}
void ICollection.CopyTo (Array array, int index)
{
EventLogEntry[] entries = _impl.GetEntries ();
Array.Copy (entries, 0, array, index, entries.Length);
}
private class EventLogEntryEnumerator : IEnumerator
{
internal EventLogEntryEnumerator (EventLogImpl impl)
{
_impl = impl;
}
object IEnumerator.Current {
get { return Current; }
}
public EventLogEntry Current {
get {
#if NET_2_0
if (_currentEntry != null)
return _currentEntry;
#else
if (_currentIndex >= 0 && _currentIndex < _impl.EntryCount)
return _impl [_currentIndex];
#endif
throw new InvalidOperationException ("No current EventLog"
+ " entry available, cursor is located before the first"
+ " or after the last element of the enumeration.");
}
}
public bool MoveNext ()
{
_currentIndex++;
#if NET_2_0
if (_currentIndex >= _impl.EntryCount) {
_currentEntry = null;
return false;
}
_currentEntry = _impl [_currentIndex];
return true;
#else
return (_currentIndex < _impl.EntryCount);
#endif
}
public void Reset ()
{
_currentIndex = - 1;
}
readonly EventLogImpl _impl;
int _currentIndex = -1;
#if NET_2_0
EventLogEntry _currentEntry;
#endif
}
}
}
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