public static async Task <GetResponse> ReadItemAsync(PooledSocket socket, CancellationToken cancellationToken = default) { var description = await TextSocketHelper.ReadResponseAsync(socket, cancellationToken).ConfigureAwait(false); if (String.Compare(description, "END", StringComparison.Ordinal) == 0) { return(null); } else if (description.Length < 6 || String.Compare(description, 0, "VALUE ", 0, 6, StringComparison.Ordinal) != 0) { throw new MemcachedClientException("No VALUE response received.\r\n" + description); } // response is: // VALUE <key> <flags> <bytes> [<cas unique>] // 0 1 2 3 4 // // cas only exists in 1.2.4+ // ulong cas = 0; var parts = description.Split(' '); if (parts.Length == 5) { if (!UInt64.TryParse(parts[4], out cas)) { throw new MemcachedClientException("Invalid CAS VALUE received."); } } else if (parts.Length < 4) { throw new MemcachedClientException("Invalid VALUE response received: " + description); } var flags = UInt16.Parse(parts[2], CultureInfo.InvariantCulture); var length = Int32.Parse(parts[3], CultureInfo.InvariantCulture); var allData = new byte[length]; var eod = new byte[2]; await socket.ReceiveAsync(allData, 0, length, cancellationToken).ConfigureAwait(false); await socket.ReceiveAsync(eod, 0, 2, cancellationToken).ConfigureAwait(false); // data is terminated by \r\n var result = new GetResponse(parts[1], flags, cas, allData); GetHelper.Logger = GetHelper.Logger ?? Caching.Logger.CreateLogger(typeof(GetHelper)); if (GetHelper.Logger.IsEnabled(LogLevel.Debug)) { GetHelper.Logger.LogDebug("Received value. Data type: {0}, size: {1}.", result.Item.Flags, result.Item.Data.Count); } return(result); }
public static GetResponse ReadItem(PooledSocket socket) { string description = TextSocketHelper.ReadResponse(socket); if (String.Compare(description, "END", StringComparison.Ordinal) == 0) { return(null); } if (description.Length < 6 || String.Compare(description, 0, "VALUE ", 0, 6, StringComparison.Ordinal) != 0) { throw new MemcachedClientException("No VALUE response received.\r\n" + description); } ulong cas = 0; string[] parts = description.Split(' '); // response is: // VALUE <key> <flags> <bytes> [<cas unique>] // 0 1 2 3 4 // // cas only exists in 1.2.4+ // if (parts.Length == 5) { if (!UInt64.TryParse(parts[4], out cas)) { throw new MemcachedClientException("Invalid CAS VALUE received."); } } else if (parts.Length < 4) { throw new MemcachedClientException("Invalid VALUE response received: " + description); } ushort flags = UInt16.Parse(parts[2], CultureInfo.InvariantCulture); int length = Int32.Parse(parts[3], CultureInfo.InvariantCulture); byte[] allData = new byte[length]; byte[] eod = new byte[2]; socket.Read(allData, 0, length); socket.Read(eod, 0, 2); // data is terminated by \r\n GetResponse retval = new GetResponse(parts[1], flags, cas, allData); if (log.IsDebugEnabled) { log.DebugFormat("Received value. Data type: {0}, size: {1}.", retval.Item.Flags, retval.Item.Data.Count); } return(retval); }
protected internal override ValueTask <IOperationResult> ReadResponseAsync(PooledSocket socket) { GetResponse r = GetHelper.ReadItem(socket); var result = new TextOperationResult(); if (r == null) { return(new ValueTask <IOperationResult>(result.Fail("Failed to read response"))); } this.result = r.Item; this.Cas = r.CasValue; GetHelper.FinishCurrent(socket); return(new ValueTask <IOperationResult>(result.Pass())); }
public static GetResponse ReadItem(PooledSocket socket) { string description = TextSocketHelper.ReadResponse(socket); if (String.Compare(description, "END", StringComparison.Ordinal) == 0) return null; if (description.Length < 6 || String.Compare(description, 0, "VALUE ", 0, 6, StringComparison.Ordinal) != 0) throw new MemcachedClientException("No VALUE response received.\r\n" + description); ulong cas = 0; string[] parts = description.Split(' '); // response is: // VALUE <key> <flags> <bytes> [<cas unique>] // 0 1 2 3 4 // // cas only exists in 1.2.4+ // if (parts.Length == 5) { if (!UInt64.TryParse(parts[4], out cas)) throw new MemcachedClientException("Invalid CAS VALUE received."); } else if (parts.Length < 4) { throw new MemcachedClientException("Invalid VALUE response received: " + description); } ushort flags = UInt16.Parse(parts[2], CultureInfo.InvariantCulture); int length = Int32.Parse(parts[3], CultureInfo.InvariantCulture); byte[] allData = new byte[length]; byte[] eod = new byte[2]; socket.Read(allData, 0, length); socket.Read(eod, 0, 2); // data is terminated by \r\n GetResponse retval = new GetResponse(parts[1], flags, cas, allData); if (log.IsDebugEnabled) log.DebugFormat("Received value. Data type: {0}, size: {1}.", retval.Item.Flags, retval.Item.Data.Count); return retval; }