public static void ExtraDisposesAreIgnored()
{
OwnedMemory <int> block = MemoryPool <int> .Shared.Rent(42);
block.Dispose();
block.Dispose();
}
static void TestLifetime(OwnedMemory <byte> owned)
{
Memory <byte> copyStoredForLater;
try {
Memory <byte> memory = owned.Memory;
Memory <byte> memorySlice = memory.Slice(10);
copyStoredForLater = memorySlice;
var r = memorySlice.Retain();
try {
Assert.Throws <InvalidOperationException>(() => { // memory is reserved; premature dispose check fires
owned.Dispose();
});
}
finally {
r.Dispose(); // release reservation
}
}
finally {
owned.Dispose(); // can finish dispose with no exception
}
Assert.Throws <ObjectDisposedException>(() => {
// memory is disposed; cannot use copy stored for later
var span = copyStoredForLater.Span;
});
}
public void DisposeStore()
{
_secretStore?.Dispose();
_secretStore = null;
_state.HandshakeHash?.Dispose();
_state.HandshakeHash = null;
}
static void BufferLifetimeBasicsAuto(OwnedMemory <byte> buffer)
{
Memory <byte> copyStoredForLater;
try
{
Memory <byte> memory = buffer.Memory;
Memory <byte> slice = memory.Slice(10);
copyStoredForLater = slice;
var handle = slice.Retain();
try
{
Assert.Throws <InvalidOperationException>(() =>
{ // memory is reserved; premature dispose check fires
buffer.Dispose();
});
}
finally
{
handle.Dispose(); // release reservation
}
}
finally
{
buffer.Dispose(); // can finish dispose with no exception
}
Assert.ThrowsAny <ObjectDisposedException>(() =>
{
// memory is disposed; cannot use copy stored for later
var span = copyStoredForLater.Span;
});
Assert.True(buffer.IsDisposed);
}
public void Dispose()
{
if (_memory == null)
{
throw new InvalidOperationException("Cannot dispose non-root database");
}
_memory.Dispose();
}
public static void IsDisposed()
{
OwnedMemory <int> block = MemoryPool <int> .Shared.Rent(42);
Assert.False(block.IsDisposed);
block.Dispose();
Assert.True(block.IsDisposed);
block.Dispose();
Assert.True(block.IsDisposed);
}
public override void Return(OwnedMemory<byte> buffer)
{
var ownedArray = buffer as OwnedArray<byte>;
if (ownedArray == null) throw new InvalidOperationException("buffer not rented from this pool");
ArrayPool<byte>.Shared.Return(ownedArray.Array);
buffer.Dispose();
}
public static void NoPinAfterDispose()
{
OwnedMemory <int> block = MemoryPool <int> .Shared.Rent(42);
block.Dispose();
Assert.Throws <ObjectDisposedException>(() => block.Pin());
}
public override void Return(OwnedMemory <byte> buffer)
{
var pooledBuffer = buffer as BufferManager;
if (pooledBuffer == null)
{
throw new Exception();
}
var memory = pooledBuffer.Pointer.ToInt64();
if (memory < _memory.ToInt64() || memory > _memory.ToInt64() + _bufferSize * _bufferCount)
{
throw new Exception("not rented from this pool");
}
var offset = memory - _memory.ToInt64();
var index = offset / _bufferSize;
lock (_lock) {
buffer.Dispose();
if (_rented[index] == false)
{
throw new Exception("this buffer is not rented");
}
_rented[index] = false;
}
}
static void DisposeAuto(OwnedMemory <byte> buffer)
{
var length = buffer.Length;
buffer.Dispose();
Assert.True(buffer.IsDisposed);
Assert.ThrowsAny <ObjectDisposedException>(() =>
{
var ignore = buffer.Span;
});
Assert.ThrowsAny <ObjectDisposedException>(() =>
{
buffer.Span.Slice(0, length);
});
Assert.ThrowsAny <ObjectDisposedException>(() =>
{
buffer.Pin();
});
Assert.ThrowsAny <ObjectDisposedException>(() =>
{
var rwBuffer = buffer.Memory;
});
Assert.ThrowsAny <ObjectDisposedException>((Action)(() =>
{
ReadOnlyMemory <byte> roBuffer = buffer.Memory;
}));
}
public static void NoTryGetArrayAfterDispose()
{
OwnedMemory <int> block = MemoryPool <int> .Shared.Rent(42);
Memory <int> memory = block.Memory;
block.Dispose();
Assert.Throws <ObjectDisposedException>(() => MemoryMarshal.TryGetArray(memory, out ArraySegment <int> arraySegment));
}
public void Dispose()
{
Debug.Assert(_buffer.ReferenceCount >= 1);
_buffer.Release();
if (_buffer.ReferenceCount == 0)
{
_buffer.Dispose();
}
}
public void Dispose()
{
Debug.Assert(_buffer.HasOutstandingReferences);
_buffer.Release();
if (!_buffer.HasOutstandingReferences)
{
_buffer.Dispose();
}
}
public void Dispose()
{
if (_pool == null)
{
throw new InvalidOperationException("only root object can (and should) be disposed.");
}
_db = ReadOnlySpan <byte> .Empty;
_values = ReadOnlySpan <byte> .Empty;
_dbMemory.Dispose();
_dbMemory = null;
}
public override void Return(OwnedMemory <byte> buffer)
{
var ownedArray = buffer as OwnedArray <byte>;
if (ownedArray == null)
{
throw new InvalidOperationException("buffer not rented from this pool");
}
ArrayPool <byte> .Shared.Return(ownedArray.Array);
buffer.Dispose();
}
private void ResizeDb()
{
var oldData = _scratchMemory.Span;
var newScratch = _pool.Rent(_scratchMemory.Length * 2);
int dbLength = newScratch.Length / 2;
var newDb = newScratch.Memory.Slice(0, dbLength);
_db.Slice(0, _valuesIndex).Span.CopyTo(newDb.Span);
_db = newDb;
var newStackMemory = newScratch.Memory.Slice(dbLength);
_stack.Resize(newStackMemory);
_scratchManager.Dispose();
_scratchManager = newScratch;
}
protected override void Dispose(bool disposing)
{
_pool.CheckDisposed();
_ownedMemory.Dispose();
}
public void Dispose()
{
_keyStore.Dispose();
_ctx.Free();
GC.SuppressFinalize(this);
}