public void CouldAcquirePackerLock()
{
var path = TestUtils.GetPath();
ProcessConfig.Init(path);
var streamId = 42;
StartupConfig.PackerTimeoutSeconds = 0.1;
var stateTable = new StreamLogStateStorage(path);
var state = stateTable.GetState((StreamLogId)streamId);
var pl = state.AcquirePackerLock();
var pl1 = state.AcquirePackerLock();
Assert.IsTrue(pl > 0);
Assert.IsTrue(pl1 == 0);
var pl2 = state.AcquirePackerLock(pl);
Assert.IsTrue(pl2 > pl);
Thread.Sleep(200);
var pl3 = state.AcquirePackerLock();
var pl4 = state.AcquirePackerLock();
Assert.IsTrue(pl3 > 0);
Assert.IsTrue(pl4 == 0);
stateTable.Dispose();
}
internal bool TryPackBlocks(StreamLogId slid)
{
var state = _stateStorage.GetState(slid);
long packerLock;
if (state.IsValid && (packerLock = state.AcquirePackerLock()) > 0)
{
try
{
var isPackable = !_disablePacking && !state.StreamLogFlags.NoPacking();
var couldHaveMore = isPackable;
while (couldHaveMore)
{
var packAction =
state.StreamLogFlags.DropPacked()
? PackAction.Delete
: PackAction.Pack;
couldHaveMore = _streamLogManager.BlockIndex.PackBlocks(state, packAction);
if (couldHaveMore)
{
// extend lock to avoid timeout
packerLock = state.AcquirePackerLock(packerLock);
}
}
}
finally
{
if (!state.ReleasePackerLock(packerLock))
{
ThrowHelper.FailFast("Cannot release owned packer lock");
}
}
return(true);
}
return(false);
}
public void CouldCreateStreamStateView()
{
var path = TestUtils.GetPath();
var stateTable = new StreamLogStateStorage(path);
Console.WriteLine($"Used size before 1: {stateTable.UsedSize}");
var view0 = stateTable.GetState((StreamLogId)1);
Console.WriteLine($"Used size after 1: {stateTable.UsedSize}");
var view1 = stateTable.GetState((StreamLogId)2);
Console.WriteLine($"Used size after 2: {stateTable.UsedSize}");
Console.WriteLine($"0 - 1 Pointer diff: {view1.StatePointer.ToInt64() - view0.StatePointer.ToInt64()}");
var view1023 = stateTable.GetState((StreamLogId)1023);
Console.WriteLine($"Used size after 1023: {stateTable.UsedSize}");
Console.WriteLine($"1 - 1024 Pointer diff: {view1023.StatePointer.ToInt64() - view0.StatePointer.ToInt64()}");
var view1024 = stateTable.GetState((StreamLogId)1024);
Console.WriteLine($"Used size after 1024: {stateTable.UsedSize}");
Console.WriteLine($"1 - 1024 Pointer diff: {view1024.StatePointer.ToInt64() - view0.StatePointer.ToInt64()}");
var viewN1 = stateTable.GetState((StreamLogId)(-1));
Console.WriteLine($"Used size after -1: {stateTable.UsedSize}");
var viewN2 = stateTable.GetState((StreamLogId)(-2));
Console.WriteLine($"Used size after -2: {stateTable.UsedSize}");
Console.WriteLine($"-2 - -1 Pointer diff: {viewN2.StatePointer.ToInt64() - viewN1.StatePointer.ToInt64()}");
stateTable.Dispose();
}
