private async Task TryEnsureBackwardsCompatibilityAsync()
{
try
{
// Before Wasabi 1.1.5
var oldIndexFilepath = Path.Combine(EnvironmentHelpers.GetDataDir(Path.Combine("WalletWasabi", "Client")), $"Index{Network}.dat");
if (File.Exists(oldIndexFilepath))
{
string[] allLines = await File.ReadAllLinesAsync(oldIndexFilepath);
var matureLines = allLines.SkipLast(100);
var immatureLines = allLines.TakeLast(100);
await MatureIndexFileManager.WriteAllLinesAsync(matureLines);
await ImmatureIndexFileManager.WriteAllLinesAsync(immatureLines);
File.Delete(oldIndexFilepath);
}
}
catch (Exception ex)
{
Logger.LogWarning <IndexStore>($"Backwards compatibility couldn't be ensured. Exception: {ex.ToString()}");
}
}
/// <summary>
/// It'll LogError the exceptions.
/// If cancelled, it'll LogTrace the exception.
/// </summary>
private async Task TryCommitToFileAsync(TimeSpan throttle, CancellationToken cancel)
{
try
{
// If throttle is requested, then throttle.
if (throttle != TimeSpan.Zero)
{
// Increment the throttle ID and remember the incremented value.
int incremented = Interlocked.Increment(ref _throttleId);
if (incremented < 21)
{
await Task.Delay(throttle, cancel);
}
// If the _throttleId is still the incremented value, then I am the latest CommitToFileAsync request.
// In this case I want to make the _throttledId 0 and go ahead and do the writeline.
// If the _throttledId is not the incremented value anymore then I am not the latest request here,
// So just return, the latest request will do the file write in its own time.
if (Interlocked.CompareExchange(ref _throttleId, 0, incremented) != incremented)
{
return;
}
}
else
{
Interlocked.Exchange(ref _throttleId, 0); // So to notified the currently throttled threads that they don't have to run.
}
using (await MatureIndexFileManager.Mutex.LockAsync(cancel))
using (await ImmatureIndexFileManager.Mutex.LockAsync(cancel))
using (await IndexLock.LockAsync(cancel))
{
// Don't feed the cancellationToken here I always want this to finish running for safety.
var currentImmatureLines = ImmatureFilters.Select(x => x.ToHeightlessLine());
var matureLinesToAppend = currentImmatureLines.SkipLast(100);
var immatureLines = currentImmatureLines.TakeLast(100);
await MatureIndexFileManager.AppendAllLinesAsync(matureLinesToAppend);
await ImmatureIndexFileManager.WriteAllLinesAsync(immatureLines);
while (ImmatureFilters.Count > 100)
{
ImmatureFilters.RemoveFirst();
}
}
}
catch (Exception ex) when(ex is OperationCanceledException ||
ex is TaskCanceledException ||
ex is TimeoutException)
{
Logger.LogTrace <IndexStore>(ex);
}
catch (Exception ex)
{
Logger.LogError <IndexStore>(ex);
}
}
private async Task EnsureBackwardsCompatibilityAsync()
{
try
{
// Before Wasabi 1.1.5
var oldIndexFilePath = Path.Combine(EnvironmentHelpers.GetDataDir(Path.Combine("WalletWasabi", "Client")), $"Index{Network}.dat");
// Before Wasabi 1.1.6
var oldFileNames = new[]
{
"ImmatureIndex.dat",
"ImmatureIndex.dat.dig",
"MatureIndex.dat",
"MatureIndex.dat.dig"
};
var oldIndexFolderPath = Path.Combine(EnvironmentHelpers.GetDataDir(Path.Combine("WalletWasabi", "Client")), "BitcoinStore", Network.ToString());
foreach (var fileName in oldFileNames)
{
var oldFilePath = Path.Combine(oldIndexFolderPath, fileName);
if (File.Exists(oldFilePath))
{
string newFilePath = oldFilePath.Replace(oldIndexFolderPath, WorkFolderPath);
if (File.Exists(newFilePath))
{
File.Delete(newFilePath);
}
File.Move(oldFilePath, newFilePath);
}
}
if (File.Exists(oldIndexFilePath))
{
string[] allLines = await File.ReadAllLinesAsync(oldIndexFilePath).ConfigureAwait(false);
var matureLines = allLines.SkipLast(100);
var immatureLines = allLines.TakeLast(100);
await MatureIndexFileManager.WriteAllLinesAsync(matureLines).ConfigureAwait(false);
await ImmatureIndexFileManager.WriteAllLinesAsync(immatureLines).ConfigureAwait(false);
File.Delete(oldIndexFilePath);
}
await DeleteIfDeprecatedAsync().ConfigureAwait(false);
}
catch (Exception ex)
{
Logger.LogWarning($"Backwards compatibility could not be ensured. Exception: {ex}.");
}
}