public async Task FixFileLockingIssuesWhenUpdatingLastReadTime()
{
const string knownId = "known-id";
Console.WriteLine("Saving some data");
await _storage.Save(knownId, new MemoryStream(Encoding.UTF8.GetBytes("hej med dig min ven!")));
var caughtExceptions = new ConcurrentQueue <Exception>();
Console.WriteLine("Reading the data many times in parallel");
var threads = Enumerable.Range(0, 10)
.Select(i =>
{
var thread = new Thread(() =>
{
10.Times(() =>
{
try
{
using (var source = _storage.Read(knownId).Result)
using (var destination = new MemoryStream())
{
source.CopyTo(destination);
}
}
catch (Exception exception)
{
caughtExceptions.Enqueue(exception);
}
});
});
return(thread);
})
.ToList();
Console.WriteLine("Starting threads");
threads.ForEach(t => t.Start());
Console.WriteLine("Waiting for them to finish");
threads.ForEach(t => t.Join());
Console.WriteLine("Finished :)");
if (caughtExceptions.Count > 0)
{
Assert.Fail($@"Caught {caughtExceptions.Count} exceptions - here's the first 5:
{string.Join(Environment.NewLine + Environment.NewLine, caughtExceptions.Take(5))}");
}
}
