/// <summary>
/// Uses the specified functions to remove a key/value pair from the dictionary if the key exists and passes a condition, or to update a key/value pair in the dictionary if the key exists but does not.
/// </summary>
/// <param name="key">The key to be removed or whose value should be updated</param>
/// <param name="removalConditionFunc">The function used to check if a key should be removed or updated.</param>
/// <param name="updateValueFactory">The function used to generate a new value for an existing key based on the key's existing value</param>
/// <returns>Whether the key was found and successfully removed or not.</returns>
public bool RemoveOrUpdate(TKey key, Func <TKey, TValue, bool> removalConditionFunc,
Func <TKey, TValue, TValue> updateValueFactory)
{
bool blnReturn;
using (EnterReadLock.Enter(LockObject))
{
if (_dicData.TryGetValue(key, out TValue objExistingValue))
{
blnReturn = removalConditionFunc(key, objExistingValue);
if (blnReturn)
{
using (LockObject.EnterWriteLock())
blnReturn = _dicData.Remove(key);
}
if (!blnReturn) // Not an else in case we somehow fail at removing a key that still passes the condition
{
using (LockObject.EnterWriteLock())
_dicData[key] = updateValueFactory(key, objExistingValue);
}
}
else
{
blnReturn = false;
}
}
return(blnReturn);
}
/// <inheritdoc />
protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
{
using (EnterReadLock.Enter(LockObject))
{
if (_blnSkipCollectionChanged)
{
return;
}
if (e.Action == NotifyCollectionChangedAction.Reset)
{
_blnSkipCollectionChanged = true;
using (LockObject.EnterWriteLock())
{
// Remove all duplicate entries
for (int intLastIndex = Count - 1; intLastIndex >= 0; --intLastIndex)
{
T objItem = this[intLastIndex];
for (int intIndex = IndexOf(objItem); intIndex != intLastIndex; intIndex = IndexOf(objItem))
{
RemoveAt(intIndex);
--intLastIndex;
}
}
}
_blnSkipCollectionChanged = false;
}
}
base.OnCollectionChanged(e);
}
/// <inheritdoc />
public bool TryTake(out KeyValuePair <TKey, TValue> item)
{
bool blnTakeSuccessful = false;
TKey objKeyToTake = default;
TValue objValue = default;
// Immediately enter a write lock to prevent attempted reads until we have either taken the item we want to take or failed to do so
using (LockObject.EnterWriteLock())
{
if (_lstIndexes.Count > 0)
{
// FIFO to be compliant with how the default for BlockingCollection<T> is ConcurrentQueue
objKeyToTake = _lstIndexes[0];
if (_dicUnorderedData.TryGetValue(objKeyToTake, out objValue))
{
blnTakeSuccessful = _dicUnorderedData.Remove(objKeyToTake);
if (blnTakeSuccessful)
{
_lstIndexes.RemoveAt(0);
}
}
}
}
if (blnTakeSuccessful)
{
item = new KeyValuePair <TKey, TValue>(objKeyToTake, objValue);
return(true);
}
item = default;
return(false);
}
// ReSharper disable once InheritdocInvalidUsage
/// <inheritdoc />
public T this[int index]
{
get
{
using (EnterReadLock.Enter(LockObject))
return(_lstOrderedData[index]);
}
set
{
using (EnterReadLock.Enter(LockObject))
{
T objOldItem = _lstOrderedData[index];
if (objOldItem.Equals(value))
{
return;
}
using (LockObject.EnterWriteLock())
{
_setData.Remove(objOldItem);
_setData.Add(value);
_lstOrderedData[index] = value;
}
}
}
}
/// <inheritdoc cref="List{T}.Sort()" />
public async ValueTask SortAsync()
{
using (await EnterReadLock.EnterAsync(LockObject))
{
if (_setData.Comparer is IComparer <T> comparer)
{
IAsyncDisposable objLocker = await LockObject.EnterWriteLockAsync();
try
{
_lstOrderedData.Sort(comparer);
}
finally
{
await objLocker.DisposeAsync();
}
}
else
{
IAsyncDisposable objLocker = await LockObject.EnterWriteLockAsync();
try
{
_lstOrderedData.Sort();
}
finally
{
await objLocker.DisposeAsync();
}
}
}
}
/// <summary>
/// Adds a key/value pair to the dictionary if the key does not already exist, or to update a key/value pair in the dictionary if the key already exists.
/// </summary>
/// <param name="key">The key to be added or whose value should be updated</param>
/// <param name="addValue">The value to be added for an absent key</param>
/// <param name="updateValueFactory">The function used to generate a new value for an existing key based on the key's existing value</param>
/// <param name="token">Cancellation token to listen to.</param>
/// <returns>The new value for the key. This will be either be addValue (if the key was absent) or the result of updateValueFactory (if the key was present).</returns>
public async ValueTask <TValue> AddOrUpdateAsync(TKey key, TValue addValue, Func <TKey, TValue, TValue> updateValueFactory, CancellationToken token = default)
{
using (await EnterReadLock.EnterAsync(LockObject, token))
{
IAsyncDisposable objLocker;
if (_dicData.TryGetValue(key, out TValue objExistingValue))
{
TValue objNewValue = updateValueFactory(key, objExistingValue);
objLocker = await LockObject.EnterWriteLockAsync(token);
try
{
token.ThrowIfCancellationRequested();
_dicData[key] = objNewValue;
}
finally
{
await objLocker.DisposeAsync();
}
return(objNewValue);
}
objLocker = await LockObject.EnterWriteLockAsync(token);
try
{
token.ThrowIfCancellationRequested();
_dicData.Add(key, addValue);
}
finally
{
await objLocker.DisposeAsync();
}
return(addValue);
}
}
public override void OnInvoke(PostSharp.Aspects.MethodInterceptionArgs args)
{
LockObject t = null;
if (_typeLock.TryGetValue(instanceType, out t))
{
if (Monitor.TryEnter(t, _acquireLockTimeout))
{
try
{
Debug.WriteLine("Entering for " + instanceType + " Lock: " + t.Guid.ToString());
args.Proceed();
}
finally
{
Debug.WriteLine("Completed blocking" + instanceType + " Lock: " + t.Guid.ToString());
Monitor.Exit(t);
}
}
}
else
{
throw new InvalidOperationException("Lock object not found for " + instanceType);
}
}
public override void SetLock(LockObject lockObj)
{
base.SetLock(lockObj);
OnVertexSnappingModeChaged();
SetColors();
UpdateColliders();
}
/// <inheritdoc />
public void Dispose()
{
Mugshot?.Dispose();
DownLoadRunning?.Dispose();
MyPluginDataDic.Dispose();
LockObject?.Dispose();
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
LockObject.Dispose();
}
}
public void CopyFrom(CharacterCache objExistingCache)
{
using (LockObject.EnterWriteLock())
using (EnterReadLock.Enter(objExistingCache.LockObject))
{
_strBackground = objExistingCache.Background;
_strBuildMethod = objExistingCache.BuildMethod;
_strCharacterAlias = objExistingCache.CharacterAlias;
_strCharacterName = objExistingCache.CharacterName;
_strCharacterNotes = objExistingCache.CharacterNotes;
_strConcept = objExistingCache.Concept;
_blnCreated = objExistingCache.Created;
_strDescription = objExistingCache.Description;
_strEssence = objExistingCache.Essence;
_strGameNotes = objExistingCache.GameNotes;
_strKarma = objExistingCache.Karma;
_strFileName = objExistingCache.FileName;
_strMetatype = objExistingCache.Metatype;
_strMetavariant = objExistingCache.Metavariant;
_strPlayerName = objExistingCache.PlayerName;
_strSettingsFile = objExistingCache.SettingsFile;
_imgMugshot?.Dispose();
_imgMugshot = objExistingCache.Mugshot.Clone() as Image;
}
}
/// <summary>
/// Use in place of CollectionChanged Subtract
/// </summary>
/// <param name="objTag">Tag of delegate to remove from CollectionChanged</param>
/// <returns>True if a delegate associated with the tag was found and deleted, false otherwise.</returns>
public async ValueTask <bool> RemoveTaggedCollectionChangedAsync(object objTag)
{
IAsyncDisposable objLocker = await LockObject.EnterWriteLockAsync();
try
{
(bool blnSuccess, HashSet <NotifyCollectionChangedEventHandler> setFuncs)
= await _dicTaggedAddedDelegates.TryGetValueAsync(objTag);
if (!blnSuccess)
{
Utils.BreakIfDebug();
return(false);
}
foreach (NotifyCollectionChangedEventHandler funcDelegateToRemove in setFuncs)
{
base.CollectionChanged -= funcDelegateToRemove;
}
setFuncs.Clear();
return(true);
}
finally
{
await objLocker.DisposeAsync();
}
}
/// <summary>
/// Use in place of CollectionChanged Adder
/// </summary>
/// <param name="objTag">Tag to associate with added delegate</param>
/// <param name="funcDelegateToAdd">Delegate to add to CollectionChanged</param>
/// <returns>True if delegate was successfully added, false if a delegate already exists with the associated tag.</returns>
public async ValueTask <bool> AddTaggedCollectionChangedAsync(object objTag, NotifyCollectionChangedEventHandler funcDelegateToAdd)
{
IAsyncDisposable objLocker = await LockObject.EnterWriteLockAsync();
try
{
(bool blnSuccess, HashSet <NotifyCollectionChangedEventHandler> setFuncs)
= await _dicTaggedAddedDelegates.TryGetValueAsync(objTag);
if (!blnSuccess)
{
setFuncs = new HashSet <NotifyCollectionChangedEventHandler>();
await _dicTaggedAddedDelegates.AddAsync(objTag, setFuncs);
}
if (setFuncs.Add(funcDelegateToAdd))
{
base.CollectionChanged += funcDelegateToAdd;
return(true);
}
}
finally
{
await objLocker.DisposeAsync();
}
Utils.BreakIfDebug();
return(false);
}
public LogConfig GetLogConfig(Guid accountId, Guid componentId)
{
lock (LockObject.ForComponent(componentId))
{
var componentService = Context.ComponentService;
var component = componentService.GetComponentById(accountId, componentId);
var accountDbContext = Context.GetAccountDbContext(accountId);
var repository = accountDbContext.GetLogConfigRepository();
var config = repository.GetByComponentId(componentId);
if (config == null)
{
config = new LogConfig()
{
Enabled = true,
ComponentId = component.Id,
LastUpdateDate = DateTime.Now,
IsDebugEnabled = true,
IsTraceEnabled = true,
IsInfoEnabled = true,
IsWarningEnabled = true,
IsErrorEnabled = true,
IsFatalEnabled = true
};
repository.Add(config);
}
return(config);
}
}
protected virtual async ValueTask DisposeAsync(bool disposing)
{
if (disposing)
{
await LockObject.DisposeAsync();
}
}
private static void TryRemoveLock(string name, LockObject o)
{
if (o.LockCountAdd(-1).LockCount == 0)
{
LockDict.TryRemove(name, out _);
}
}
/// <summary>
/// Adds a key/value pair to the dictionary if the key does not already exist, or to update a key/value pair in the dictionary if the key already exists.
/// </summary>
/// <param name="key">The key to be added or whose value should be updated</param>
/// <param name="addValue">The value to be added for an absent key</param>
/// <param name="updateValueFactory">The function used to generate a new value for an existing key based on the key's existing value</param>
/// <returns>The new value for the key. This will be either be addValue (if the key was absent) or the result of updateValueFactory (if the key was present).</returns>
public async ValueTask <TValue> AddOrUpdateAsync(TKey key, TValue addValue, Func <TKey, TValue, TValue> updateValueFactory)
{
using (await EnterReadLock.EnterAsync(LockObject))
{
IAsyncDisposable objLocker;
if (_dicData.TryGetValue(key, out TValue objExistingValue))
{
TValue objNewValue = updateValueFactory(key, objExistingValue);
objLocker = await LockObject.EnterWriteLockAsync().ConfigureAwait(false);
try
{
_dicData[key] = objNewValue;
}
finally
{
await objLocker.DisposeAsync().ConfigureAwait(false);
}
return(objNewValue);
}
objLocker = await LockObject.EnterWriteLockAsync().ConfigureAwait(false);
try
{
_dicData.Add(key, addValue);
}
finally
{
await objLocker.DisposeAsync().ConfigureAwait(false);
}
return(addValue);
}
}
public void GetByGuid()
{
var lockObj = new LockObject(1000);
var guid1 = new Guid("5A79EF6A-F8DF-496B-BB64-5C3B7F8E61A3");
var guid2 = Guid.Parse("5A79EF6A-F8DF-496B-BB64-5C3B7F8E61A3");
var guid3 = guid2; // копия структуры
var guid4 = new Guid("51094EE8-30F5-49EC-9A5A-94ABA9E56A8A");
var obj1 = lockObj.Get(guid1);
var obj2 = lockObj.Get(guid2);
var obj3 = lockObj.Get(guid3);
var obj4 = lockObj.Get(guid4);
Assert.True(ReferenceEquals(obj1, obj2));
Assert.True(ReferenceEquals(obj1, obj3));
Assert.False(ReferenceEquals(obj1, obj4));
int count = 100;
for (int i = 0; i < count; i++)
{
var g1 = Guid.NewGuid();
var g2 = Guid.Parse(g1.ToString());
var g3 = g1;
var o1 = lockObj.Get(g1);
var o2 = lockObj.Get(g2);
var o3 = lockObj.Get(g3);
Assert.True(ReferenceEquals(o1, o2));
Assert.True(ReferenceEquals(o1, o3));
}
}
/// <inheritdoc cref="Dictionary{TKey, TValue}.Clear" />
public void Clear()
{
using (LockObject.EnterWriteLock())
{
_dicUnorderedData.Clear();
_lstIndexes.Clear();
}
}
/// <inheritdoc />
public void Add(TKey key, TValue value)
{
using (LockObject.EnterWriteLock())
{
_dicUnorderedData.Add(key, value);
_lstIndexes.Add(key);
}
}
public virtual void SetLock(LockObject lockObj)
{
if (lockObj == null)
{
lockObj = new LockObject();
}
m_lockObj = lockObj;
}
public async Task GetLock_MissingLock_ReturnsNull()
{
string id = _idGenerator.Next(34000, 49999).ToString();
string lockCategory = _uniqueKeys.GetKey("GBLI");
LockObject missing = await _locker.GetLock(lockCategory, id);
Assert.IsNull(missing);
}
private static void ReleaseLockObject(object key, LockObject lockObj)
{
lockObj.Counter--;
lock (LockPool) {
if (lockObj.Counter == 0) {
LockPool.Remove(key);
}
}
}
private void SetDefaultEventHandlers()
{
using (LockObject.EnterWriteLock())
{
_onMyDoubleClick += OnDefaultDoubleClick;
_onMyKeyDown += OnDefaultKeyDown;
_onMyContextMenuDeleteClick += OnDefaultContextMenuDeleteClick;
}
}
/// <summary>
///
/// </summary>
/// <param name="lockObject"></param>
/// <param name="expiry"></param>
/// <returns></returns>
public bool Lock(LockObject lockObject, TimeSpan expiry)
{
Throws.ArgumentNullException(lockObject, nameof(lockObject));
if (this._memoryCache.Get(lockObject.Key) != null)
{
return(false);
}
return(this._memoryCache.Set(lockObject.Key, lockObject.Value, expiry));
}
public LoopObject(LockObject locker, int lower, int upper, int modulus, int threads)
{
this.locker = locker;
this.lower = lower;
this.upper = upper;
this.modulus = modulus;
this.amountOfThreads = threads;
CreateThreads(threads);
}
private void ReturnLockObject(LockObject lockObject)
{
lock (_lockTable)
{
if (lockObject.Close())
{
_lockTable.Remove(lockObject.GetKey());
}
}
}
static void OpenLockObject()
{
if (instance != null)
{
instance.Close();
}
instance = EditorWindow.CreateInstance <LockObject>();
instance.Show();
}
private static void ReleaseLockObject(object key, LockObject lockObj)
{
lockObj.Counter--;
lock (LockPool) {
if (lockObj.Counter == 0)
{
LockPool.Remove(key);
}
}
}
/// <summary>
/// Throws exception when metadata could not be converted to a valid PDFDocument instance.
/// </summary>
/// <param name="library"></param>
/// <param name="data"></param>
/// <param name="library_items_annotations_cache"></param>
/// <returns></returns>
public static PDFDocument LoadFromMetaData(Library library, byte[] data, Dictionary <string, byte[]> /* can be null */ library_items_annotations_cache)
{
DictionaryBasedObject dictionary = PDFMetadataSerializer.ReadFromStream(data);
LockObject _lock = new LockObject();
PDFDocument pdf_document = new PDFDocument(_lock, library, dictionary);
// thread-UNSAFE access is permitted as the PDF has just been created so there's no thread-safety risk yet.
pdf_document.doc.GetAnnotations(library_items_annotations_cache);
return(pdf_document);
}
public EventType GetOrCreate(EventType eventType, Guid accountId)
{
var lockObj = LockObject.ForEventType(accountId, eventType.SystemName);
lock (lockObj)
{
var repository = GetEventTypeRepository(accountId);
return(repository.GetOrCreate(eventType));
}
}
public CountLoop(LockObject locker, int lower, int upper, int modulus, int threads)
: base(locker, lower, upper, modulus, threads)
{
this.counter = 0;
action = (int i) =>
{
counter++;
};
}
public ListLoop(LockObject locker, int lower, int upper, int modulus, int threads)
: base(locker, lower, upper, modulus, threads)
{
list = new LinkedList<int>();
action = (int i) =>
{
list.AddLast(i);
};
}
public KeyValuePair <TKey, TValue> this[int index]
{
get
{
using (EnterReadLock.Enter(LockObject))
return(new KeyValuePair <TKey, TValue>(_lstIndexes[index], _dicUnorderedData[_lstIndexes[index]]));
}
set
{
using (EnterReadLock.Enter(LockObject))
{
if (_dicUnorderedData.TryGetValue(value.Key, out TValue objOldValue))
{
int intOriginalIndex = _lstIndexes.IndexOf(value.Key);
if (index == intOriginalIndex)
{
return;
}
TKey objKeyToRemove = _lstIndexes[index];
using (LockObject.EnterWriteLock())
{
_lstIndexes[index] = value.Key;
for (int i = intOriginalIndex; i < _lstIndexes.Count - 2; ++i)
{
if (i != index)
{
_lstIndexes[i] = _lstIndexes[i + 1];
}
}
_lstIndexes.RemoveAt(_lstIndexes.Count - 1);
if (objKeyToRemove != null)
{
_dicUnorderedData.Remove(objKeyToRemove);
}
if (!objOldValue.Equals(value.Value))
{
_dicUnorderedData[value.Key] = value.Value;
}
}
}
else
{
using (LockObject.EnterWriteLock())
{
TKey objKeyToRemove = _lstIndexes[index];
_dicUnorderedData.Remove(objKeyToRemove);
_dicUnorderedData.Add(value.Key, value.Value);
_lstIndexes[index] = value.Key;
}
}
}
}
}
private static LockObject GetLockObject(object key)
{
lock (LockPool) {
var lockObj = LockPool[key] as LockObject;
if (lockObj == null) {
lockObj = new LockObject();
LockPool[key] = lockObj;
}
lockObj.Counter++;
return lockObj;
}
}
/// <summary>
/// �ͷ�������, ���������ü���Ϊ0ʱ, ����������Ƴ�
/// </summary>
/// <param name="key"></param>
/// <param name="lockObj"></param>
private static void ReleaseLockObject(object key, LockObject lockObj)
{
lockObj.Counter--;
lock (_lockPool)
{
//Console.WriteLine(string.Format("I am thread {0}:lock counter is {1}", Thread.CurrentThread.Name, lockObj.Counter));
if (lockObj.Counter == 0)
{
_lockPool.Remove(key);
}
}
}
public SearchLoop(LockObject locker, int lower, int upper, int modulus, int threads, string hash)
: base(locker, lower, upper, modulus, threads)
{
answer = -1;
stop = false;
this.hash = hash;
action = (int i) =>
{
answer = i;
stop = true;
};
}
LoopObject CreateLoop(LockObject locker, ProgramMode programMode)
{
switch (programMode)
{
case ProgramMode.Count:
return new CountLoop(locker, lower, upper, modulus, threads);
case ProgramMode.List:
return new ListLoop(locker, lower, upper, modulus, threads);
case ProgramMode.Search:
return new SearchLoop(locker, lower, upper, modulus, threads, hash);
default:
throw new NotImplementedException();
}
}
public IDisposable AcquireLock(string key)
{
LockObject obj;
lock (keyLocksLock)
{
if (!keyLocks.TryGetValue(key,
out obj))
{
keyLocks[key] = obj = new LockObject(key);
}
obj.Withdraw();
}
Monitor.Enter(obj);
return new DisposableToken(this,
obj);
}
public DisposableToken(StringLock stringLock, LockObject lockObject)
{
this.stringLock = stringLock;
this.lockObject = lockObject;
}
