Support for fb_info_protocol_version (#933).

Author: cincuranet

Provider/src/FirebirdSql.Data.FirebirdClient.Tests/FbDatabaseInfoTests.cs

@@ -52,6 +52,7 @@ public void CompleteDatabaseInfoTest()
 						nameof(FbDatabaseInfo.GetDbFileIdAsync),
 						nameof(FbDatabaseInfo.GetDbGuidAsync),
 						nameof(FbDatabaseInfo.GetCreationTimestampAsync),
+						nameof(FbDatabaseInfo.GetProtocolVersionAsync),
 					}.Contains(m.Name))
 					continue;
 

Provider/src/FirebirdSql.Data.FirebirdClient/Common/IscHelper.cs

@@ -73,6 +73,7 @@ public static List<object> ParseDatabaseInfo(byte[] buffer)
 					case IscCodes.isc_info_active_tran_count:
 					case IscCodes.fb_info_next_attachment:
 					case IscCodes.fb_info_next_statement:
+					case IscCodes.fb_info_protocol_version:
 						info.Add(VaxInteger(buffer, pos, length));
 						break;
 

Provider/src/FirebirdSql.Data.FirebirdClient/FirebirdClient/FbDatabaseInfo.cs

@@ -450,6 +450,15 @@ public Task<FbZonedDateTime> GetCreationTimestampAsync(CancellationToken cancell
 			return GetValueAsync<FbZonedDateTime>(IscCodes.fb_info_creation_timestamp_tz, cancellationToken);
 		}
 
+		public int GetProtocolVersion()
+		{
+			return GetValue<int>(IscCodes.fb_info_protocol_version);
+		}
+		public Task<int> GetProtocolVersionAsync(CancellationToken cancellationToken = default)
+		{
+			return GetValueAsync<int>(IscCodes.fb_info_protocol_version, cancellationToken);
+		}
+
 		#endregion
 
 		#region Constructors
@@ -473,7 +482,7 @@ private T GetValue<T>(byte item)
 				IscCodes.isc_info_end
 			};
 			var info = Connection.InnerConnection.Database.GetDatabaseInfo(items);
-			return info.Any() ? ConvertValue<T>(info[0]): default;
+			return info.Any() ? ConvertValue<T>(info[0]) : default;
 		}
 		private async Task<T> GetValueAsync<T>(byte item, CancellationToken cancellationToken = default)
 		{