/// <summary>Releases the unmanaged resources used by the <see cref="T:System.IO.Stream" /> and optionally releases the managed resources.</summary>
/// <param name="disposing">true to release both managed and unmanaged resources; false to release only unmanaged resources.</param>
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (Interlocked.Exchange(ref _isDisposed, 1) == 0)
{
_currentStream.Dispose();
if (_tempFile != null)
{
var tmpName = _tempFile.Name;
_tempFile = null;
var tcs = new TaskCompletionSource <Nothing>();
CoreTaskHelper.RunAsyncFuncOnNewThread(async() =>
{
try
{
await CloseFile(tmpName);
tcs.SetResult(Nothing.Value);
}
catch (Exception ex)
{
tcs.SetException(ex);
}
return(Nothing.Value);
});
if (!tcs.Task.Wait(TimeSpan.FromSeconds(5)))
{
throw new TimeoutException();
}
}
}
}
base.Dispose(disposing);
}
/// <summary>
/// Параллельная обработка перечисления на разных сессиях.
/// </summary>
/// <typeparam name="TSrc">Тип данных.</typeparam>
/// <typeparam name="T">Тип результата.</typeparam>
/// <param name="src">Перечисление.</param>
/// <param name="parallelFunc">Функция обоработки.</param>
/// <returns>Результат.</returns>
protected async ValueTask <T[]> ParallelizeOnSessions <TSrc, T>(IEnumerable <TSrc> src, Func <IEsentSession, TSrc, T> parallelFunc)
{
ValueTask <T> Do(IEsentSession session, TSrc el)
{
return(session.Run(() => parallelFunc(session, el)));
}
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
if (parallelFunc == null)
{
throw new ArgumentNullException(nameof(parallelFunc));
}
var tasks = new List <ValueTask <T> >();
var toDispose = new CompositeDisposable(null);
try
{
foreach (var el in src)
{
var session = await EsentProvider.GetSecondarySessionAndUse();
toDispose.AddDisposable(session.usage);
tasks.Add(Do(session.session, el));
}
return(await CoreTaskHelper.WhenAllValueTasks(tasks));
}
finally
{
toDispose.Dispose();
}
}
/// <summary>When overridden in a derived class, writes a sequence of bytes to the current stream and advances the current position within this stream by the number of bytes written.</summary>
/// <param name="buffer">An array of bytes. This method copies <paramref name="count" /> bytes from <paramref name="buffer" /> to the current stream. </param>
/// <param name="offset">The zero-based byte offset in <paramref name="buffer" /> at which to begin copying bytes to the current stream. </param>
/// <param name="count">The number of bytes to be written to the current stream. </param>
/// <exception cref="T:System.ArgumentException">The sum of <paramref name="offset" /> and <paramref name="count" /> is greater than the buffer length.</exception>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="buffer" /> is null.</exception>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="offset" /> or <paramref name="count" /> is negative.</exception>
/// <exception cref="T:System.IO.IOException">An I/O error occured, such as the specified file cannot be found.</exception>
/// <exception cref="T:System.NotSupportedException">The stream does not support writing.</exception>
/// <exception cref="T:System.ObjectDisposedException">
/// <see cref="M:System.IO.Stream.Write(System.Byte[],System.Int32,System.Int32)" /> was called after the stream was closed.</exception>
/// <filterpriority>1</filterpriority>
public override void Write(byte[] buffer, int offset, int count)
{
_currentStream.Write(buffer, offset, count);
if (!CoreTaskHelper.RunAsyncFuncOnNewThread(CheckStreamSize).Wait(TimeSpan.FromSeconds(10)))
{
throw new TimeoutException();
}
}
/// <summary>When overridden in a derived class, sets the length of the current stream.</summary>
/// <param name="value">The desired length of the current stream in bytes. </param>
/// <exception cref="T:System.IO.IOException">An I/O error occurs. </exception>
/// <exception cref="T:System.NotSupportedException">The stream does not support both writing and seeking, such as if the stream is constructed from a pipe or console output. </exception>
/// <exception cref="T:System.ObjectDisposedException">Methods were called after the stream was closed. </exception>
/// <filterpriority>2</filterpriority>
public override void SetLength(long value)
{
_currentStream.SetLength(value);
if (!CoreTaskHelper.RunAsyncFuncOnNewThread(CheckStreamSize).Wait(TimeSpan.FromSeconds(10)))
{
throw new TimeoutException();
}
}
public async Task BlobStoreUploadBenchmarkParallel()
{
long size;
Stopwatch sw;
List <BlobId> id;
using (var str = new MemoryStream())
{
var wr = new BinaryWriter(str);
for (int i = 0; i < 1024 * 1024 * 2; i++)
{
wr.Write(i);
}
wr.Flush();
byte[] dataBuf = str.ToArray();
size = str.Length;
str.Position = 0;
id = new List <BlobId>();
sw = new Stopwatch();
sw.Start();
var l = new object();
async Task <Nothing> DoSave()
{
using (var str2 = new MemoryStream(dataBuf))
{
var id1 = await _store.SaveBlob(new InputBlob()
{
BlobStream = str2,
Category = "test",
UniqueName = Guid.NewGuid().ToString()
}, CancellationToken.None);
lock (l)
{
id.Add(id1);
}
}
return(Nothing.Value);
}
var toWait = Enumerable.Range(0, 5).Select(i => (Task)CoreTaskHelper.RunAsyncFuncOnNewThread(DoSave)).ToArray();
await Task.WhenAll(toWait);
sw.Stop();
var sizeMb = (float)size / (1024 * 1024);
var sec = sw.Elapsed.TotalSeconds / id.Count;
sw = new Stopwatch();
sw.Start();
Logger.LogMessage($"Время сохранения файла размером {id.Count}x{sizeMb:F2} Мб: {sec} сек, {sizeMb / sec} Мб/Сек");
}
}
private async Task <IList <IBoardPostEntity> > LoadEntities(IList <PostStoreEntityId> ids, PostStoreLoadMode mode)
{
ValueTask <List <IBoardPostEntity> > DoLoad(IList <PostStoreEntityId> toLoad)
{
return(OpenSession(session =>
{
var result = new List <IBoardPostEntity>();
var loadContext = CreateLoadContext(session, true, true);
var loadContextToDispose = loadContext;
using (loadContextToDispose)
{
foreach (var id in toLoad)
{
Api.MakeKey(loadContext.table.Session, loadContext.table, id.Id, MakeKeyGrbit.NewKey);
if (Api.TrySeek(loadContext.table.Session, loadContext.table, SeekGrbit.SeekEQ))
{
var r = LoadBoardEntity(session, ref loadContext, mode);
result.Add(r);
}
}
}
return result;
}));
}
if (ids == null)
{
throw new ArgumentNullException(nameof(ids));
}
mode = mode ?? DefaultLoadMode;
IList <IBoardPostEntity> loaded;
if (ids.Count > 4)
{
var toLoad = ids.DistributeToProcess(3);
var tasks = toLoad.Select(DoLoad).ToArray();
var taskResults = await CoreTaskHelper.WhenAllValueTasks(tasks);
loaded = taskResults.SelectMany(r => r).ToList();
}
else
{
loaded = await DoLoad(ids);
}
if (mode.EntityLoadMode == PostStoreEntityLoadMode.Full)
{
await FillChildrenInLoadResult(loaded);
}
return(loaded);
}
/// <summary>
/// Все модули инициализированы.
/// </summary>
protected override async ValueTask <Nothing> OnAllInitialized()
{
await base.OnAllInitialized();
try
{
ValueTask <Nothing> DoEnsureTableversion()
{
return(InMainSessionAsync(EnsureTableversion));
}
async ValueTask <Nothing> DoUpdate()
{
void SignalUpdateComplete()
{
_upgradeTcs.SetResult(Nothing.Value);
}
void SignalUpdateError(Exception ex)
{
_upgradeTcs.SetException(ex);
}
try
{
await TableVersionStatus.Instance.InitializeTableVersionOnce(DoEnsureTableversion);
await CreateOrUpgradeTables();
CoreTaskHelper.RunUnawaitedTask(SignalUpdateComplete);
}
catch (Exception ex)
{
CoreTaskHelper.RunUnawaitedTask(() => SignalUpdateError(ex));
}
return(Nothing.Value);
}
CoreTaskHelper.RunUnawaitedTaskAsync2(DoUpdate);
}
catch (Exception ex)
{
GlobalErrorHandler?.SignalError(ex);
}
return(Nothing.Value);
}
/// <summary>
/// ќдин раз вызвать инициализацию таблицы tableversion или ждать, если инициализаци¤ уже запущена.
/// </summary>
/// <param name="initFunc">‘ункци¤ инициализации.</param>
public async Task InitializeTableVersionOnce(Func <ValueTask <Nothing> > initFunc)
{
if (initFunc == null)
{
throw new ArgumentNullException(nameof(initFunc));
}
if (Interlocked.Exchange(ref _isProcessing, 1) == 0)
{
try
{
await CoreTaskHelper.RunAsyncFuncOnNewThreadValueTask(initFunc);
_tcs.SetResult(Nothing.Value);
}
catch (Exception ex)
{
_tcs.SetException(ex);
}
}
else
{
await _task;
}
}
private async Task <Nothing> CloseFile(string tmpName)
{
return(await CoreTaskHelper.RunAsyncFuncOnNewThread(async() =>
{
var tempFile2 = await ApplicationData.Current.TemporaryFolder.GetFileAsync(tmpName);
if (_moveToFolder != null && !string.IsNullOrWhiteSpace(_moveToFileName))
{
try
{
await tempFile2.MoveAsync(_moveToFolder, _moveToFileName, NameCollisionOption.ReplaceExisting);
}
catch
{
await tempFile2.DeleteAsync();
throw;
}
}
else
{
await tempFile2.DeleteAsync();
}
return Nothing.Value;
}));
}
public async Task BoardReferenceParallelQuery()
{
var boards = await TestResources.LoadBoardReferencesFromResource();
var parser = _provider.FindNetworkDtoParser <MobileBoardInfoCollection, IList <IBoardReference> >();
var result = parser.Parse(boards);
await _store.UpdateReferences(result, true);
async Task <Nothing> Query(int cid, int qid)
{
Logger.LogMessage($"Query {cid}:{qid} started");
var links = result.Take(40).Select(r => r.BoardLink);
foreach (var l in links)
{
var o = await _store.LoadReference(l);
Assert.IsNotNull(o, "Не получена информация о доске");
Assert.IsTrue(BoardLinkEqualityComparer.Instance.Equals(l, o.BoardLink), "Ссылка не соответствует исходной");
}
Logger.LogMessage($"Query {cid}:{qid} finished");
return(Nothing.Value);
}
for (var i = 0; i < 5; i++)
{
Logger.LogMessage($"Cycle {i} started");
await _collection.Suspend();
Logger.LogMessage("DB suspended");
await _collection.Resume();
Logger.LogMessage("DB resumed");
var cid = i;
var toWait = new Task[]
{
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 1)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 2)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 3)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 4)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 5)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 6)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 7)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 8)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 9)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 10)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 11)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 12)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 13)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 14)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 15)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 16)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 17)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 18)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 19)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 20)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 21)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 22)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 23)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 24)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 25)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 26)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 27)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 28)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 29)),
CoreTaskHelper.RunAsyncFuncOnNewThread(() => Query(cid, 30)),
};
Logger.LogMessage($"Waiting for all queries (cycle {i})");
await Task.WhenAll(toWait);
Logger.LogMessage($"Waited for all queries (cycle {i})");
}
}
public async ValueTask <(IEsentSession session, IDisposable disposable)> GetAvailableSession(bool autoUse)
{
async Task <Nothing> DoDisposeExccessSessions()
{
async Task DoDispose(EsentSession s)
{
try
{
await s.DisposeInternal();
}
catch
{
// Игнорируем ошибки
}
}
List <EsentSession> toDispose = new List <EsentSession>();
lock (Waiters.UsingLock)
{
var allSessions = _readonlySessions.Count;
var freeSessions = _readonlySessions.Where(s => s.UsingsCount == 0).ToArray();
if (allSessions > MaxReserveSessionsCount)
{
toDispose.AddRange(freeSessions.Skip(ReserveSessionsCount));
}
foreach (var s in toDispose)
{
_readonlySessions.Remove(s);
}
}
if (toDispose.Count > 0)
{
var t1 = Task.WhenAll(toDispose.Select(DoDispose));
var t2 = Task.Delay(TimeSpan.FromSeconds(15));
await Task.WhenAny(t1, t2);
}
return(Nothing.Value);
}
lock (Waiters.UsingLock)
{
var freeSessions = _readonlySessions.Where(s => s.UsingsCount == 0).ToArray();
if (freeSessions.Length > 0)
{
EsentSession r;
IDisposable d = null;
if (freeSessions.Length == 1)
{
r = freeSessions[0];
}
else
{
r = freeSessions[_rnd.Next(0, freeSessions.Length)];
}
if (autoUse)
{
r.UsingsCount++;
d = r.CreateUsageDisposable();
}
return(r, d);
}
}
var newSession = await EsentSession.CreateReadOnlySession(MainSession, Waiters);
IDisposable d2 = null;
lock (Waiters.UsingLock)
{
_readonlySessions.Add(newSession);
if (autoUse)
{
newSession.UsingsCount++;
d2 = newSession.CreateUsageDisposable();
}
}
CoreTaskHelper.RunUnawaitedTaskAsync(DoDisposeExccessSessions);
return(newSession, d2);
}
private async ValueTask <Nothing> SetChildren(IBoardPostEntity entity)
{
if (entity == null)
{
return(Nothing.Value);
}
ValueTask <List <IBoardPostEntity> > DoLoad(IList <(PostStoreEntityId id, int counter)> toLoad)
{
return(OpenSession(session =>
{
var result = new List <IBoardPostEntity>();
var loadContext = CreateLoadContext(session, true, true);
var loadContextToDispose = loadContext;
using (loadContextToDispose)
{
foreach (var id in toLoad)
{
Api.MakeKey(loadContext.table.Session, loadContext.table, id.id.Id, MakeKeyGrbit.NewKey);
if (Api.TrySeek(loadContext.table.Session, loadContext.table, SeekGrbit.SeekEQ))
{
var r = LoadBoardEntity(session, ref loadContext, FullLoadMode);
if (r is IBoardPostLight l)
{
l.Counter = id.counter;
}
result.Add(r);
}
}
}
return result;
}));
}
var collection = entity as IBoardPostCollection;
var threadCollection = entity as IBoardPageThreadCollection;
if ((entity.EntityType == PostStoreEntityType.Thread || entity.EntityType == PostStoreEntityType.ThreadPreview || entity.EntityType == PostStoreEntityType.Catalog || entity.EntityType == PostStoreEntityType.BoardPage) &&
entity is IPostModelStoreChildrenLoadStageInfo loadStage && (collection?.Posts != null || threadCollection?.Threads != null) &&
entity.StoreId != null)
{
if (loadStage.Stage == ChildrenLoadStageId.Completed)
{
var childrenIds = await OpenSession(session0 => EnumEntityChildren(session0, entity.StoreId.Value));
IList <IBoardPostEntity> loaded;
if (childrenIds.Count > 4)
{
var toLoad = childrenIds.DistributeToProcess(3);
var tasks = toLoad.Select(DoLoad).ToArray();
var taskResults = await CoreTaskHelper.WhenAllValueTasks(tasks);
loaded = taskResults.SelectMany(r => r).ToList();
}
else
{
loaded = await DoLoad(childrenIds);
}
if (collection?.Posts != null)
{
IEnumerable <IBoardPost> toAdd;
if (entity.EntityType == PostStoreEntityType.Catalog)
{
int GetCatalogSequence(IBoardPost p)
{
if (p is IBoardPostEntityWithSequence s)
{
return(s.OnPageSequence);
}
return(int.MaxValue);
}
toAdd = loaded.OfType <IBoardPost>().Deduplicate(p => p.Link, BoardLinkEqualityComparer.Instance).OrderBy(GetCatalogSequence);
}
else
{
toAdd = loaded.OfType <IBoardPost>().Deduplicate(p => p.Link, BoardLinkEqualityComparer.Instance).OrderBy(p => p.Link, BoardLinkComparer.Instance);
}
foreach (var item in toAdd)
{
collection.Posts.Add(item);
}
}
if (threadCollection?.Threads != null)
{
var toAdd = loaded.OfType <IThreadPreviewPostCollection>().Deduplicate(p => p.Link, BoardLinkEqualityComparer.Instance).OrderBy(p => p.OnPageSequence);
foreach (var item in toAdd)
{
threadCollection.Threads.Add(item);
}
}
}
}
return(Nothing.Value);
}
