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(*
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* Firebird Interface (fbintf). The fbintf components provide a set of
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* Pascal language bindings for the Firebird API.
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*
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* The contents of this file are subject to the Initial Developer's
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* Public License Version 1.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy
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* of the License here:
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*
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* http://www.firebirdsql.org/index.php?op=doc&id=idpl
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Initial Developer of the Original Code is Tony Whyman.
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*
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* The Original Code is (C) 2016 Tony Whyman, MWA Software
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* (http://www.mwasoftware.co.uk).
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*
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* All Rights Reserved.
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*
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* Contributor(s): ______________________________________.
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*
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*)
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unit FBOutputBlock;
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{$IFDEF MSWINDOWS}
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{$DEFINE WINDOWS}
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{$ENDIF}
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{$IFDEF FPC}
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{$mode delphi}
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{$codepage UTF8}
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{$interfaces COM}
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{$ENDIF}
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{ $DEFINE DEBUGOUTPUTBLOCK}
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interface
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{Provides common handling for the DB Info results, SQL Info and Service Response Block}
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uses
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Classes, SysUtils, FBClientAPI, IB, FBActivityMonitor;
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const
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DefaultBufferSize = 32000;
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DBInfoDefaultBufferSize = DefaultBufferSize; {allow for database page}
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type
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TItemDataType = (dtString, dtString2, dtByte, dtBytes, dtInteger, dtIntegerFixed, dtnone,
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dtList,dtSpecial, dtDateTime, dtOctetString);
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POutputBlockItemData = ^TOutputBlockItemData;
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TOutputBlockItemData = record
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{Describes a Clumplet in the buffer. FBufPtr always points to the clumplet id
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the rest of the clumplet up to the FSize is data. The data format is
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given by FDataType, and the data length is given by FDataLength}
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FBufPtr: PByte;
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FDataLength: integer;
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FSize: integer;
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FDataType: TItemDataType;
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FTruncated: boolean;
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FError: boolean;
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FSubItems: array of POutputBlockItemData;
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end;
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{ TOutputBlock }
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TOutputBlock = class(TFBInterfacedObject)
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private
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FBuffer: PByte;
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FBufSize: integer;
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FBufferParsed: boolean;
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FFirebirdClientAPI: TFBClientAPI;
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procedure ParseBuffer;
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{$IFDEF DEBUGOUTPUTBLOCK}
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procedure FormattedPrint(const aItems: array of POutputBlockItemData;
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Indent: AnsiString);
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{$ENDIF}
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procedure PrintBuf;
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protected
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FIntegerType: TItemDataType;
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FError: boolean;
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FTruncated: boolean;
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FItems: array of POutputBlockItemData;
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procedure DoParseBuffer; virtual; abstract;
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function AddItem(BufPtr: PByte): POutputBlockItemData;
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function AddIntegerItem(BufPtr: PByte): POutputBlockItemData;
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function AddStringItem(BufPtr: PByte): POutputBlockItemData;
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function AddShortStringItem(BufPtr: PByte): POutputBlockItemData;
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function AddByteItem(BufPtr: PByte): POutputBlockItemData;
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function AddBytesItem(BufPtr: PByte): POutputBlockItemData;
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function AddListItem(BufPtr: PByte): POutputBlockItemData; virtual;
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function AddSpecialItem(BufPtr: PByte): POutputBlockItemData; virtual;
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function AddDateTimeItem(BufPtr: PByte): POutputBlockItemData;
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function AddOctetString(BufPtr: PByte): POutputBlockItemData;
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public
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constructor Create(api: TFBClientAPI; aSize: integer = DefaultBufferSize);
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destructor Destroy; override;
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function Buffer: PByte;
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function getBufSize: integer;
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public
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function GetCount: integer;
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function GetItem(index: integer): POutputBlockItemData;
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function Find(ItemType: byte): POutputBlockItemData;
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property Count: integer read GetCount;
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property Items[index: integer]: POutputBlockItemData read getItem; default;
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end;
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{ TOutputBlockItem }
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TOutputBlockItem = class(TFBInterfacedObject,IUnknown)
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private
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FOwner: TOutputBlock;
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FOwnerIntf: IUnknown;
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FItemData: POutputBlockItemData;
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FFirebirdClientAPI: TFBClientAPI;
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protected
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function GetItem(index: integer): POutputBlockItemData;
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function Find(ItemType: byte): POutputBlockItemData;
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procedure SetString(out S: AnsiString; Buf: PByte; Len: integer;
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CodePage: TSystemCodePage);
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property ItemData: POutputBlockItemData read FItemData;
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property Owner: TOutputBlock read FOwner;
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public
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constructor Create(AOwner: TOutputBlock; Data: POutputBlockItemData);
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public
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function GetCount: integer;
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function getItemType: byte;
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function getSize: integer;
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procedure getRawBytes(var Buffer);
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function getAsInteger: integer;
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function getParamType: byte;
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function getAsString: AnsiString;
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function getAsByte: byte;
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function getAsBytes: TByteArray;
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function getAsDateTime: TDateTime;
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function CopyTo(stream: TStream; count: integer): integer;
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end;
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TServiceQueryResultSubItem = class(TOutputBlockItem,IServiceQueryResultSubItem);
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{ TCustomOutputBlock }
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{$IFDEF FPC}
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TCustomOutputBlock<_TItem,_IItem> = class(TOutputBlock)
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{$ELSE}
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TOutputBlockItemClass = class of TOutputBlockItem;
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TCustomOutputBlock<_TItem: TOutputBlockItem;_IItem: IUnknown> = class(TOutputBlock)
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{$ENDIF}
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public
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function getItem(index: integer): _IItem;
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function find(ItemType: byte): _IItem;
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property Items[index: integer]: _IItem read getItem; default;
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end;
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{ TOutputBlockItemGroup }
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{$IFDEF FPC}
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TOutputBlockItemGroup<_TItem,_IItem> = class(TOutputBlockItem)
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{$ELSE}
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TOutputBlockItemGroup<_TItem: TOutputBlockItem; _IItem: IUnknown> = class(TOutputBlockItem)
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{$ENDIF}
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public
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function GetItem(index: integer): _IItem;
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function Find(ItemType: byte): _IItem;
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property Items[index: integer]: _IItem read getItem; default;
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end;
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{ TDBInfoItem }
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{$IFDEF FPC}
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TDBInfoItem = class;
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TDBInfoItem = class(TOutputBlockItemGroup<TDBInfoItem,IDBInfoItem>,IDBInfoItem)
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{$ELSE}
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TDBInfoItem = class(TOutputBlockItemGroup<TOutputBlockItem,IDBInfoItem>,IDBInfoItem)
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{$ENDIF}
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public
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procedure DecodeIDCluster(var ConnectionType: integer; var DBFileName, DBSiteName: AnsiString);
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procedure DecodeVersionString(var Version: byte; var VersionString: AnsiString);
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procedure DecodeUserNames(UserNames: TStrings);
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function getOperationCounts: TDBOperationCounts;
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end;
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{ TDBInformation }
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TDBInformation = class(TCustomOutputBlock<TDBInfoItem,IDBInfoItem>, IDBInformation)
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protected
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function AddSpecialItem(BufPtr: PByte): POutputBlockItemData; override;
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procedure DoParseBuffer; override;
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public
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constructor Create(api: TFBClientAPI; aSize: integer = DefaultBufferSize);
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{$IFNDEF FPC}
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function Find(ItemType: byte): IDBInfoItem;
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{$ENDIF}
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end;
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{ TServiceQueryResultItem }
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TServiceQueryResultItem = class(TOutputBlockItemGroup<TServiceQueryResultSubItem,IServiceQueryResultSubItem>,
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IServiceQueryResultItem);
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{ TServiceQueryResults }
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TServiceQueryResults = class(TCustomOutputBlock<TServiceQueryResultItem,IServiceQueryResultItem>, IServiceQueryResults)
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protected
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function AddListItem(BufPtr: PByte): POutputBlockItemData; override;
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function AddSpecialItem(BufPtr: PByte): POutputBlockItemData; override;
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procedure DoParseBuffer; override;
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{$IFNDEF FPC}
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public
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function Find(ItemType: byte): IServiceQueryResultItem;
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{$ENDIF}
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end;
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{ ISQLInfoItem }
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ISQLInfoSubItem = interface
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['{39852ee4-4851-44df-8dc0-26b991250098}']
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function getItemType: byte;
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function getSize: integer;
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function getAsString: AnsiString;
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function getAsInteger: integer;
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end;
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ISQLInfoItem = interface(ISQLInfoSubItem)
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['{34e3c39d-fe4f-4211-a7e3-0266495a359d}']
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function GetCount: integer;
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function GetItem(index: integer): ISQLInfoSubItem;
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function Find(ItemType: byte): ISQLInfoSubItem;
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property Count: integer read GetCount;
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property Items[index: integer]: ISQLInfoSubItem read getItem; default;
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end;
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{ISQLInfoResults}
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ISQLInfoResults = interface
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['{0b3fbe20-6f80-44e7-85ef-e708bc1f2043}']
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function GetCount: integer;
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function GetItem(index: integer): ISQLInfoItem;
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function Find(ItemType: byte): ISQLInfoItem;
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property Count: integer read GetCount;
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property Items[index: integer]: ISQLInfoItem read getItem; default;
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end;
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TSQLInfoResultsSubItem = class(TOutputBlockItem,ISQLInfoSubItem);
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{ TSQLInfoResultsItem }
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TSQLInfoResultsItem = class(TOutputBlockItemGroup<TSQLInfoResultsSubItem,ISQLInfoSubItem>,ISQLInfoItem);
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{ TSQLInfoResultsBuffer }
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TSQLInfoResultsBuffer = class(TCustomOutputBlock<TSQLInfoResultsItem,ISQLInfoItem>, ISQLInfoResults)
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protected
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function AddListItem(BufPtr: PByte): POutputBlockItemData; override;
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procedure DoParseBuffer; override;
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public
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constructor Create(api: TFBClientAPI; aSize: integer= DefaultBufferSize);
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end;
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IBlobInfoItem = interface
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['{3a55e558-b97f-4cf3-af95-53b84f4d9a65}']
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function getItemType: byte;
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function getSize: integer;
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function getAsString: AnsiString;
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function getAsInteger: integer;
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end;
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IBlobInfo = interface
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['{8a340109-f600-4d26-ab1d-e0be2c759f1c}']
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function GetCount: integer;
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function GetItem(index: integer): IBlobInfoItem;
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function Find(ItemType: byte): IBlobInfoItem;
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property Count: integer read GetCount;
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property Items[index: integer]: IBlobInfoItem read getItem; default;
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end;
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{$IFDEF FPC}
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TBlobInfoItem = class;
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TBlobInfoItem = class(TOutputBlockItemGroup<TBlobInfoItem,IBlobInfoItem>,IBlobInfoItem)
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{$ELSE}
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TBlobInfoItem = class(TOutputBlockItemGroup<TOutputBlockItem,IBlobInfoItem>,IBlobInfoItem)
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{$ENDIF}
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end;
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{ TBlobInfo }
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TBlobInfo = class(TCustomOutputBlock<TBlobInfoItem,IBlobInfoItem>, IBlobInfo)
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protected
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procedure DoParseBuffer; override;
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public
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constructor Create(api: TFBClientAPI; aSize: integer = DefaultBufferSize);
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end;
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implementation
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uses FBMessages {$IFNDEF FPC}, TypInfo {$ENDIF};
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function BufToStr(P: PByte; Len: integer):AnsiString;
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begin
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SetLength(Result,Len);
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Move(P^,Result[1],Len);
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end;
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{$IFDEF FPC}
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{ TOutputBlockItemGroup }
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function TOutputBlockItemGroup<_TItem,_IItem>.GetItem(index: integer): _IItem;
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var P: POutputBlockItemData;
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begin
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P := inherited getItem(index);
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Result := _TItem.Create(self.Owner,P);
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end;
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function TOutputBlockItemGroup<_TItem,_IItem>.Find(ItemType: byte): _IItem;
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var P: POutputBlockItemData;
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begin
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P := inherited Find(ItemType);
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Result := _TItem.Create(self.Owner,P);
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end;
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{ TCustomOutputBlock }
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function TCustomOutputBlock<_TItem,_IItem>.getItem(index: integer): _IItem;
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var P: POutputBlockItemData;
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begin
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P := inherited getItem(index);
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Result := _TItem.Create(self,P)
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end;
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338 |
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function TCustomOutputBlock<_TItem,_IItem>.find(ItemType: byte): _IItem;
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var P: POutputBlockItemData;
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begin
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P := inherited Find(ItemType);
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if P = nil then
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Result := nil
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else
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Result := _TItem.Create(self,P)
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end;
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348 |
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{$ELSE}
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350 |
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{ TOutputBlockItemGroup }
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352 |
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function TOutputBlockItemGroup<_TItem,_IItem>.GetItem(index: integer): _IItem;
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var P: POutputBlockItemData;
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Obj: TOutputBlockItem;
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begin
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P := inherited getItem(index);
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Obj := TOutputBlockItemClass(_TItem).Create(self.Owner,P);
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if Obj.QueryInterface(GetTypeData(TypeInfo(_IItem))^.Guid,Result) <> 0 then
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IBError(ibxeInterfaceNotSupported,[GuidToString(GetTypeData(TypeInfo(_IItem))^.Guid)]);
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end;
|
362 |
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function TOutputBlockItemGroup<_TItem,_IItem>.Find(ItemType: byte): _IItem;
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var P: POutputBlockItemData;
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Obj: TOutputBlockItem;
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begin
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P := inherited Find(ItemType);
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368 |
if P = nil then
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Result := Default(_IITEM)
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else
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begin
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Obj := TOutputBlockItemClass(_TItem).Create(self.Owner,P);
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if Obj.QueryInterface(GetTypeData(TypeInfo(_IItem))^.Guid,Result) <> 0 then
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IBError(ibxeInterfaceNotSupported,[GuidToString(GetTypeData(TypeInfo(_IItem))^.Guid)]);
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end;
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end;
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377 |
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{ TCustomOutputBlock }
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379 |
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function TCustomOutputBlock<_TItem,_IItem>.getItem(index: integer): _IItem;
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381 |
var P: POutputBlockItemData;
|
382 |
Obj: TOutputBlockItem;
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begin
|
384 |
P := inherited getItem(index);
|
385 |
Obj := TOutputBlockItemClass(_TItem).Create(self,P);
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if Obj.QueryInterface(GetTypeData(TypeInfo(_IItem))^.Guid,Result) <> 0 then
|
387 |
IBError(ibxeInterfaceNotSupported,[GuidToString(GetTypeData(TypeInfo(_IItem))^.Guid)]);
|
388 |
end;
|
389 |
|
390 |
function TCustomOutputBlock<_TItem,_IItem>.find(ItemType: byte): _IItem;
|
391 |
var P: POutputBlockItemData;
|
392 |
Obj: TOutputBlockItem;
|
393 |
begin
|
394 |
P := inherited Find(ItemType);
|
395 |
Obj := TOutputBlockItemClass(_TItem).Create(self,P);
|
396 |
if Obj.QueryInterface(GetTypeData(TypeInfo(_IItem))^.Guid,Result) <> 0 then
|
397 |
IBError(ibxeInterfaceNotSupported,[GuidToString(GetTypeData(TypeInfo(_IItem))^.Guid)]);
|
398 |
end;
|
399 |
|
400 |
{$ENDIF}
|
401 |
|
402 |
{ TOutputBlockItem }
|
403 |
|
404 |
function TOutputBlockItem.GetCount: integer;
|
405 |
begin
|
406 |
Result := Length(FItemData^.FSubItems);
|
407 |
end;
|
408 |
|
409 |
function TOutputBlockItem.GetItem(index: integer): POutputBlockItemData;
|
410 |
begin
|
411 |
if (index >= 0) and (index < Length(FItemData^.FSubItems)) then
|
412 |
Result := FItemData^.FSubItems[index]
|
413 |
else
|
414 |
with FFirebirdClientAPI do
|
415 |
IBError(ibxeOutputBlockIndexError,[index]);
|
416 |
end;
|
417 |
|
418 |
function TOutputBlockItem.Find(ItemType: byte): POutputBlockItemData;
|
419 |
var i: integer;
|
420 |
begin
|
421 |
Result := nil;
|
422 |
for i := 0 to GetCount - 1 do
|
423 |
if byte(FItemData^.FSubItems[i]^.FBufPtr^) = ItemType then
|
424 |
begin
|
425 |
Result := FItemData^.FSubItems[i];
|
426 |
Exit;
|
427 |
end;
|
428 |
end;
|
429 |
|
430 |
{ TOutputBlockItem }
|
431 |
|
432 |
procedure TOutputBlockItem.SetString(out S: AnsiString; Buf: PByte;
|
433 |
Len: integer; CodePage: TSystemCodePage);
|
434 |
var rs: RawByteString;
|
435 |
i: integer;
|
436 |
begin
|
437 |
{There seems to be a memory manager problem with SetString that can cause
|
438 |
an unhandled exception at the end of a program if it is used to set the
|
439 |
string. Safer to copy characters one by one. Note that Setlength does
|
440 |
not work around the bug either.}
|
441 |
rs := '';
|
442 |
for i := 0 to len-1 do
|
443 |
rs := rs + PAnsiChar(buf+i)^;
|
444 |
// system.SetString(rs,PAnsiChar(Buf),len);
|
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SetCodePage(rs,CodePage,false);
|
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S := rs;
|
447 |
end;
|
448 |
|
449 |
constructor TOutputBlockItem.Create(AOwner: TOutputBlock;
|
450 |
Data: POutputBlockItemData);
|
451 |
begin
|
452 |
inherited Create;
|
453 |
FOwner := AOwner;
|
454 |
FOwnerIntf := AOwner;
|
455 |
FFirebirdClientAPI := AOwner.FFirebirdClientAPI;
|
456 |
FItemData := Data;
|
457 |
end;
|
458 |
|
459 |
function TOutputBlockItem.getItemType: byte;
|
460 |
begin
|
461 |
Result := byte(FItemData^.FBufPtr^);
|
462 |
end;
|
463 |
|
464 |
function TOutputBlockItem.getSize: integer;
|
465 |
begin
|
466 |
if FItemData = nil then
|
467 |
Result := 0
|
468 |
else
|
469 |
Result := FItemData^.FDataLength;
|
470 |
end;
|
471 |
|
472 |
procedure TOutputBlockItem.getRawBytes(var Buffer);
|
473 |
begin
|
474 |
with FItemData^ do
|
475 |
Move(FBufPtr^,Buffer,FDatalength);
|
476 |
end;
|
477 |
|
478 |
function TOutputBlockItem.getAsInteger: integer;
|
479 |
var len: integer;
|
480 |
begin
|
481 |
with FItemData^ do
|
482 |
case FDataType of
|
483 |
dtIntegerFixed:
|
484 |
with FFirebirdClientAPI do
|
485 |
Result := DecodeInteger(FBufPtr+1,4);
|
486 |
|
487 |
dtByte,
|
488 |
dtInteger:
|
489 |
with FFirebirdClientAPI do
|
490 |
begin
|
491 |
len := DecodeInteger(FBufPtr+1,2);
|
492 |
Result := DecodeInteger(FBufPtr+3,len);
|
493 |
end;
|
494 |
else
|
495 |
IBError(ibxeOutputBlockTypeError,[nil]);
|
496 |
end;
|
497 |
end;
|
498 |
|
499 |
function TOutputBlockItem.getParamType: byte;
|
500 |
begin
|
501 |
Result := byte(FItemData^.FBufPtr^)
|
502 |
end;
|
503 |
|
504 |
function TOutputBlockItem.getAsString: AnsiString;
|
505 |
var len: integer;
|
506 |
begin
|
507 |
Result := '';
|
508 |
with FItemData^ do
|
509 |
case FDataType of
|
510 |
dtIntegerFixed,
|
511 |
dtInteger:
|
512 |
Result := IntToStr(getAsInteger);
|
513 |
dtByte:
|
514 |
Result := IntToStr(getAsByte);
|
515 |
dtString:
|
516 |
begin
|
517 |
len := byte((FBufPtr+1)^);
|
518 |
SetString(Result,FBufPtr+2,len,CP_ACP);
|
519 |
end;
|
520 |
dtString2:
|
521 |
begin
|
522 |
with FFirebirdClientAPI do
|
523 |
len := DecodeInteger(FBufPtr+1,2);
|
524 |
SetString(Result,FBufPtr+3,len,CP_ACP);
|
525 |
end;
|
526 |
dtOctetString:
|
527 |
begin
|
528 |
with FFirebirdClientAPI do
|
529 |
len := DecodeInteger(FBufPtr+1,2);
|
530 |
SetString(Result,FBufPtr+3,len,CP_NONE);
|
531 |
end;
|
532 |
else
|
533 |
IBError(ibxeOutputBlockTypeError,[nil]);
|
534 |
end;
|
535 |
end;
|
536 |
|
537 |
function TOutputBlockItem.getAsByte: byte;
|
538 |
begin
|
539 |
with FItemData^ do
|
540 |
if FDataType = dtByte then
|
541 |
Result := byte((FBufPtr+2)^)
|
542 |
else
|
543 |
IBError(ibxeOutputBlockTypeError,[nil]);
|
544 |
end;
|
545 |
|
546 |
function TOutputBlockItem.getAsBytes: TByteArray;
|
547 |
var i: integer;
|
548 |
P: PByte;
|
549 |
begin
|
550 |
with FItemData^ do
|
551 |
if FDataType = dtBytes then
|
552 |
begin
|
553 |
SetLength(Result,FDataLength);
|
554 |
P := FBufPtr;
|
555 |
for i := 0 to FDataLength - 1 do
|
556 |
begin
|
557 |
Result[i] := byte(P^);
|
558 |
Inc(P);
|
559 |
end
|
560 |
end
|
561 |
else
|
562 |
IBError(ibxeOutputBlockTypeError,[nil]);
|
563 |
end;
|
564 |
|
565 |
function TOutputBlockItem.getAsDateTime: TDateTime;
|
566 |
var aDate: integer;
|
567 |
aTime: integer;
|
568 |
begin
|
569 |
with FItemData^, FFirebirdClientAPI do
|
570 |
if FDataType = dtDateTime then
|
571 |
begin
|
572 |
aDate := DecodeInteger(FBufPtr+3,4);
|
573 |
aTime := DecodeInteger(FBufPtr+7,4);
|
574 |
Result := SQLDecodeDate(@aDate) + SQLDecodeTime(@aTime)
|
575 |
end
|
576 |
else
|
577 |
IBError(ibxeOutputBlockTypeError,[nil]);
|
578 |
end;
|
579 |
|
580 |
|
581 |
function TOutputBlockItem.CopyTo(stream: TStream; count: integer): integer;
|
582 |
var len: integer;
|
583 |
begin
|
584 |
if count < 0 then count := 0;
|
585 |
with FItemData^ do
|
586 |
begin
|
587 |
case FDataType of
|
588 |
dtString:
|
589 |
begin
|
590 |
len := byte((FBufPtr+1)^);
|
591 |
if (count > 0) and (count < len) then len := count;
|
592 |
Result := stream.Write((FBufPtr+2)^,len);
|
593 |
end;
|
594 |
dtString2:
|
595 |
begin
|
596 |
with FFirebirdClientAPI do
|
597 |
len := DecodeInteger(FBufPtr+1,2);
|
598 |
if (count > 0) and (count < len) then len := count;
|
599 |
Result := stream.Write((FBufPtr+3)^,len);
|
600 |
end;
|
601 |
else
|
602 |
IBError(ibxeOutputBlockTypeError,[nil]);
|
603 |
end;
|
604 |
end;
|
605 |
end;
|
606 |
|
607 |
{ TOutputBlock }
|
608 |
|
609 |
procedure TOutputBlock.ParseBuffer;
|
610 |
begin
|
611 |
if not FBufferParsed then
|
612 |
begin
|
613 |
{$IFDEF DEBUGOUTPUTBLOCK}
|
614 |
PrintBuf;
|
615 |
{$ENDIF}
|
616 |
DoParseBuffer;
|
617 |
if FError or FTruncated then
|
618 |
SetLength(FItems,Length(FItems)-1);
|
619 |
{$IFDEF DEBUGOUTPUTBLOCK}
|
620 |
FormattedPrint(FItems,'');
|
621 |
{$ENDIF}
|
622 |
end;
|
623 |
FBufferParsed := true;
|
624 |
end;
|
625 |
|
626 |
function TOutputBlock.AddItem(BufPtr: PByte): POutputBlockItemData;
|
627 |
begin
|
628 |
new(Result);
|
629 |
with Result^ do
|
630 |
begin
|
631 |
FDataType := dtNone;
|
632 |
FBufPtr := BufPtr;
|
633 |
FDataLength := 0;
|
634 |
FSize := 1;
|
635 |
SetLength(FSubItems,0);
|
636 |
end;
|
637 |
end;
|
638 |
|
639 |
function TOutputBlock.AddIntegerItem(BufPtr: PByte): POutputBlockItemData;
|
640 |
begin
|
641 |
new(Result);
|
642 |
with Result^ do
|
643 |
begin
|
644 |
FDataType := FIntegerType;
|
645 |
FBufPtr := BufPtr;
|
646 |
if FDataType = dtIntegerFixed then
|
647 |
begin
|
648 |
FDataLength := 4;
|
649 |
FSize := 5;
|
650 |
end
|
651 |
else
|
652 |
begin
|
653 |
with FFirebirdClientAPI do
|
654 |
FDataLength := DecodeInteger(FBufPtr+1, 2);
|
655 |
FSize := FDataLength + 3;
|
656 |
end;
|
657 |
SetLength(FSubItems,0);
|
658 |
end;
|
659 |
end;
|
660 |
|
661 |
function TOutputBlock.AddStringItem(BufPtr: PByte): POutputBlockItemData;
|
662 |
begin
|
663 |
new(Result);
|
664 |
with Result^ do
|
665 |
begin
|
666 |
FDataType := dtString2;
|
667 |
FBufPtr := BufPtr;
|
668 |
with FFirebirdClientAPI do
|
669 |
FDataLength := DecodeInteger(FBufPtr+1, 2);
|
670 |
FSize := FDataLength + 3;
|
671 |
SetLength(FSubItems,0);
|
672 |
end;
|
673 |
end;
|
674 |
|
675 |
function TOutputBlock.AddShortStringItem(BufPtr: PByte): POutputBlockItemData;
|
676 |
begin
|
677 |
new(Result);
|
678 |
with Result^ do
|
679 |
begin
|
680 |
FDataType := dtString;
|
681 |
FBufPtr := BufPtr;
|
682 |
FDataLength := byte((FBufPtr+1)^);
|
683 |
FSize := FDataLength + 2;
|
684 |
SetLength(FSubItems,0);
|
685 |
end;
|
686 |
end;
|
687 |
|
688 |
function TOutputBlock.AddByteItem(BufPtr: PByte): POutputBlockItemData;
|
689 |
begin
|
690 |
new(Result);
|
691 |
with Result^ do
|
692 |
begin
|
693 |
FDataType := dtByte;
|
694 |
FBufPtr := BufPtr;
|
695 |
FDataLength := 1;
|
696 |
FSize := 2;
|
697 |
SetLength(FSubItems,0);
|
698 |
end;
|
699 |
end;
|
700 |
|
701 |
function TOutputBlock.AddBytesItem(BufPtr: PByte): POutputBlockItemData;
|
702 |
begin
|
703 |
new(Result);
|
704 |
with Result^ do
|
705 |
begin
|
706 |
FDataType := dtBytes;
|
707 |
FBufPtr := BufPtr;
|
708 |
with FFirebirdClientAPI do
|
709 |
FDataLength := DecodeInteger(FBufPtr+1, 2);
|
710 |
FSize := FDataLength + 3;
|
711 |
SetLength(FSubItems,0);
|
712 |
end;
|
713 |
end;
|
714 |
|
715 |
function TOutputBlock.AddListItem(BufPtr: PByte): POutputBlockItemData;
|
716 |
begin
|
717 |
new(Result);
|
718 |
with Result^ do
|
719 |
begin
|
720 |
FDataType := dtList;
|
721 |
FBufPtr := BufPtr;
|
722 |
FSize := FBuffer + FBufSize - FBufPtr;
|
723 |
FDataLength := FSize - 1;
|
724 |
SetLength(FSubItems,0);
|
725 |
end;
|
726 |
end;
|
727 |
|
728 |
function TOutputBlock.AddSpecialItem(BufPtr: PByte): POutputBlockItemData;
|
729 |
begin
|
730 |
new(Result);
|
731 |
with Result^ do
|
732 |
begin
|
733 |
FDataType := dtSpecial;
|
734 |
FBufPtr := BufPtr;
|
735 |
FSize := FBuffer + FBufSize - FBufPtr;
|
736 |
FDataLength := FSize - 1;
|
737 |
SetLength(FSubItems,0);
|
738 |
end;
|
739 |
end;
|
740 |
|
741 |
function TOutputBlock.AddDateTimeItem(BufPtr: PByte): POutputBlockItemData;
|
742 |
begin
|
743 |
new(Result);
|
744 |
with Result^ do
|
745 |
begin
|
746 |
FDataType := dtDateTime;
|
747 |
FBufPtr := BufPtr;
|
748 |
with FFirebirdClientAPI do
|
749 |
FDataLength := DecodeInteger(FBufPtr+1, 2);
|
750 |
FSize := FDataLength + 3;
|
751 |
SetLength(FSubItems,0);
|
752 |
end;
|
753 |
end;
|
754 |
|
755 |
function TOutputBlock.AddOctetString(BufPtr: PByte): POutputBlockItemData;
|
756 |
begin
|
757 |
new(Result);
|
758 |
with Result^ do
|
759 |
begin
|
760 |
FDataType := dtOctetString;
|
761 |
FBufPtr := BufPtr;
|
762 |
with FFirebirdClientAPI do
|
763 |
FDataLength := DecodeInteger(FBufPtr+1, 2);
|
764 |
FSize := FDataLength + 3;
|
765 |
SetLength(FSubItems,0);
|
766 |
end;
|
767 |
end;
|
768 |
|
769 |
constructor TOutputBlock.Create(api: TFBClientAPI; aSize: integer);
|
770 |
begin
|
771 |
inherited Create;
|
772 |
FFirebirdClientAPI := api;
|
773 |
FBufSize := aSize;
|
774 |
GetMem(FBuffer,aSize);
|
775 |
if FBuffer = nil then
|
776 |
OutOfMemoryError;
|
777 |
FillChar(FBuffer^,aSize,255);
|
778 |
FBufferParsed := false;
|
779 |
FIntegerType := dtIntegerFixed;
|
780 |
end;
|
781 |
|
782 |
destructor TOutputBlock.Destroy;
|
783 |
var i, j: integer;
|
784 |
begin
|
785 |
for i := 0 to length(FItems) - 1 do
|
786 |
begin
|
787 |
if FItems[i] <> nil then
|
788 |
begin
|
789 |
for j := 0 to Length(FItems[i]^.FSubItems) -1 do
|
790 |
if FItems[i]^.FSubItems[j] <> nil then
|
791 |
dispose(FItems[i]^.FSubItems[j]);
|
792 |
dispose(FItems[i]);
|
793 |
end;
|
794 |
end;
|
795 |
FreeMem(FBuffer);
|
796 |
inherited Destroy;
|
797 |
end;
|
798 |
|
799 |
function TOutputBlock.Buffer: PByte;
|
800 |
begin
|
801 |
Result := FBuffer;
|
802 |
end;
|
803 |
|
804 |
function TOutputBlock.getBufSize: integer;
|
805 |
begin
|
806 |
Result := FBufSize;
|
807 |
end;
|
808 |
|
809 |
function TOutputBlock.GetCount: integer;
|
810 |
begin
|
811 |
ParseBuffer;
|
812 |
Result := length(FItems);
|
813 |
end;
|
814 |
|
815 |
function TOutputBlock.GetItem(index: integer): POutputBlockItemData;
|
816 |
begin
|
817 |
ParseBuffer;
|
818 |
if (index >= 0) and (index < Length(FItems)) then
|
819 |
Result := FItems[index]
|
820 |
else
|
821 |
IBError(ibxeOutputBlockIndexError,[index]);
|
822 |
end;
|
823 |
|
824 |
function TOutputBlock.Find(ItemType: byte): POutputBlockItemData;
|
825 |
var i: integer;
|
826 |
begin
|
827 |
Result := nil;
|
828 |
for i := 0 to getCount - 1 do
|
829 |
if byte(FItems[i]^.FBufPtr^) = ItemType then
|
830 |
begin
|
831 |
Result := FItems[i];
|
832 |
Exit;
|
833 |
end;
|
834 |
end;
|
835 |
|
836 |
{$IFDEF DEBUGOUTPUTBLOCK}
|
837 |
procedure TOutputBlock.FormattedPrint(
|
838 |
const aItems: array of POutputBlockItemData; Indent: AnsiString);
|
839 |
|
840 |
var i: integer;
|
841 |
item: TOutputBlockItem;
|
842 |
begin
|
843 |
if FError then
|
844 |
writeln('Error')
|
845 |
else
|
846 |
if FTruncated then
|
847 |
writeln('Truncated')
|
848 |
else
|
849 |
for i := 0 to Length(aItems) - 1 do
|
850 |
with aItems[i]^ do
|
851 |
begin
|
852 |
if FError then
|
853 |
writeln('Error')
|
854 |
else
|
855 |
if FTruncated then
|
856 |
writeln('Truncated')
|
857 |
else
|
858 |
case FDataType of
|
859 |
dtList:
|
860 |
begin
|
861 |
writeln(Indent,'ItemType = ',byte(FBufPtr^));
|
862 |
FormattedPrint(FSubItems,Indent + ' ');
|
863 |
end;
|
864 |
dtSpecial:
|
865 |
writeln(Indent,'ItemType = ',byte(FBufPtr^),' Length = ',FSize);
|
866 |
else
|
867 |
begin
|
868 |
item := TOutputBlockItem.Create(self,(aItems[i]));
|
869 |
try
|
870 |
writeln(Indent,'ItemType = ',byte(FBufPtr^),' Value = ',(item as TOutputBlockItem).GetAsString);
|
871 |
except
|
872 |
writeln(Indent,'Unknown ItemType = ',byte(FBufPtr^));
|
873 |
end;
|
874 |
end;
|
875 |
end;
|
876 |
end;
|
877 |
end;
|
878 |
{$ENDIF}
|
879 |
|
880 |
procedure TOutputBlock.PrintBuf;
|
881 |
var i: integer;
|
882 |
begin
|
883 |
write(classname,': ');
|
884 |
for i := 0 to getBufSize - 1 do
|
885 |
begin
|
886 |
write(Format('%x ',[byte(Buffer[i])]));
|
887 |
if byte(FBuffer[i]) = isc_info_end then break;
|
888 |
end;
|
889 |
writeln;
|
890 |
for i := 0 to getBufSize - 1 do
|
891 |
begin
|
892 |
if chr(FBuffer[i]) in [' '..'~'] then
|
893 |
write(chr(Buffer[i]))
|
894 |
else
|
895 |
write('.');
|
896 |
if byte(FBuffer[i]) = isc_info_end then break;
|
897 |
end;
|
898 |
writeln;
|
899 |
end;
|
900 |
|
901 |
{ TDBInfoItem }
|
902 |
|
903 |
procedure TDBInfoItem.DecodeIDCluster(var ConnectionType: integer;
|
904 |
var DBFileName, DBSiteName: AnsiString);
|
905 |
var P: PByte;
|
906 |
begin
|
907 |
with ItemData^ do
|
908 |
if FBufPtr^ = isc_info_db_id then
|
909 |
begin
|
910 |
P := FBufPtr + 3;
|
911 |
if FDataLength > 0 then
|
912 |
ConnectionType := integer(P^);
|
913 |
Inc(P);
|
914 |
SetString(DBFileName,P+1,byte(P^),CP_ACP);
|
915 |
P := P + Length(DBFileName) + 1;
|
916 |
SetString(DBSiteName,P+1,byte(P^),CP_ACP);
|
917 |
end
|
918 |
else
|
919 |
IBError(ibxeInfoBufferTypeError,[integer(FBufPtr^)]);
|
920 |
end;
|
921 |
|
922 |
procedure TDBInfoItem.DecodeVersionString(var Version: byte;
|
923 |
var VersionString: AnsiString);
|
924 |
var P: PByte;
|
925 |
begin
|
926 |
with ItemData^ do
|
927 |
if FBufPtr^ = isc_info_version then
|
928 |
begin
|
929 |
P := FBufPtr+3;
|
930 |
VersionString := '';
|
931 |
Version := byte(P^);
|
932 |
Inc(P);
|
933 |
SetString(VersionString,P+1,byte(P^),CP_ACP);
|
934 |
end
|
935 |
else
|
936 |
IBError(ibxeInfoBufferTypeError,[integer(FBufPtr^)]);
|
937 |
end;
|
938 |
|
939 |
procedure TDBInfoItem.DecodeUserNames(UserNames: TStrings);
|
940 |
var P: PByte;
|
941 |
s: AnsiString;
|
942 |
begin
|
943 |
with ItemData^ do
|
944 |
if FBufPtr^ = isc_info_user_names then
|
945 |
begin
|
946 |
P := FBufPtr+3;
|
947 |
while (P < FBufPtr + FSize) do
|
948 |
begin
|
949 |
SetString(s,P+1,byte(P^),CP_ACP);
|
950 |
UserNames.Add(s);
|
951 |
P := P + Length(s) + 1;
|
952 |
end;
|
953 |
end
|
954 |
else
|
955 |
IBError(ibxeInfoBufferTypeError,[integer(FBufPtr^)]);
|
956 |
end;
|
957 |
|
958 |
function TDBInfoItem.getOperationCounts: TDBOperationCounts;
|
959 |
var tableCounts: integer;
|
960 |
P: PByte;
|
961 |
i: integer;
|
962 |
begin
|
963 |
with ItemData^ do
|
964 |
if byte(FBufPtr^) in [isc_info_backout_count, isc_info_delete_count,
|
965 |
isc_info_expunge_count,isc_info_insert_count, isc_info_purge_count,
|
966 |
isc_info_read_idx_count, isc_info_read_seq_count, isc_info_update_count] then
|
967 |
begin
|
968 |
tableCounts := FDataLength div 6;
|
969 |
SetLength(Result,TableCounts);
|
970 |
P := FBufPtr + 3;
|
971 |
for i := 0 to TableCounts -1 do
|
972 |
with FFirebirdClientAPI do
|
973 |
begin
|
974 |
Result[i].TableID := DecodeInteger(P,2);
|
975 |
Inc(P,2);
|
976 |
Result[i].Count := DecodeInteger(P,4);
|
977 |
Inc(P,4);
|
978 |
end;
|
979 |
end
|
980 |
else
|
981 |
IBError(ibxeInfoBufferTypeError,[integer(FBufPtr^)]);
|
982 |
end;
|
983 |
|
984 |
{ TDBInformation }
|
985 |
|
986 |
function TDBInformation.AddSpecialItem(BufPtr: PByte): POutputBlockItemData;
|
987 |
begin
|
988 |
Result := inherited AddSpecialItem(BufPtr);
|
989 |
with Result^ do
|
990 |
begin
|
991 |
with FFirebirdClientAPI do
|
992 |
FDataLength := DecodeInteger(FBufPtr+1,2);
|
993 |
FSize := FDataLength + 3;
|
994 |
end;
|
995 |
end;
|
996 |
|
997 |
procedure TDBInformation.DoParseBuffer;
|
998 |
var P: PByte;
|
999 |
index: integer;
|
1000 |
begin
|
1001 |
P := Buffer;
|
1002 |
index := 0;
|
1003 |
SetLength(FItems,0);
|
1004 |
while (P^ <> isc_info_end) and (P < Buffer + getBufSize) do
|
1005 |
begin
|
1006 |
SetLength(FItems,index+1);
|
1007 |
case byte(P^) of
|
1008 |
isc_info_db_read_only,
|
1009 |
isc_info_no_reserve,
|
1010 |
isc_info_allocation,
|
1011 |
isc_info_ods_minor_version,
|
1012 |
isc_info_ods_version,
|
1013 |
isc_info_db_SQL_dialect,
|
1014 |
isc_info_page_size,
|
1015 |
isc_info_current_memory,
|
1016 |
isc_info_forced_writes,
|
1017 |
isc_info_max_memory,
|
1018 |
isc_info_num_buffers,
|
1019 |
isc_info_sweep_interval,
|
1020 |
isc_info_fetches,
|
1021 |
isc_info_marks,
|
1022 |
isc_info_reads,
|
1023 |
isc_info_writes,
|
1024 |
isc_info_active_tran_count,
|
1025 |
fb_info_pages_used,
|
1026 |
fb_info_pages_free,
|
1027 |
fb_info_conn_flags:
|
1028 |
FItems[index] := AddIntegerItem(P);
|
1029 |
|
1030 |
isc_info_implementation,
|
1031 |
isc_info_base_level:
|
1032 |
FItems[index] := AddBytesItem(P);
|
1033 |
|
1034 |
isc_info_creation_date:
|
1035 |
FItems[index] := AddDateTimeItem(P);
|
1036 |
|
1037 |
fb_info_page_contents:
|
1038 |
FItems[index] := AddOctetString(P);
|
1039 |
|
1040 |
fb_info_crypt_key:
|
1041 |
FItems[index] := AddStringItem(P);
|
1042 |
|
1043 |
isc_info_db_id,
|
1044 |
isc_info_version,
|
1045 |
isc_info_backout_count,
|
1046 |
isc_info_delete_count,
|
1047 |
isc_info_expunge_count,
|
1048 |
isc_info_insert_count,
|
1049 |
isc_info_purge_count,
|
1050 |
isc_info_read_idx_count,
|
1051 |
isc_info_read_seq_count,
|
1052 |
isc_info_update_count,
|
1053 |
isc_info_user_names:
|
1054 |
FItems[index] := AddSpecialItem(P);
|
1055 |
|
1056 |
else
|
1057 |
FItems[index] := AddSpecialItem(P);
|
1058 |
end;
|
1059 |
P := P + FItems[index]^.FSize;
|
1060 |
Inc(index);
|
1061 |
end;
|
1062 |
end;
|
1063 |
|
1064 |
{$IFNDEF FPC}
|
1065 |
function TDBInformation.Find(ItemType: byte): IDBInfoItem;
|
1066 |
begin
|
1067 |
Result := inherited Find(ItemType);
|
1068 |
if Result.GetSize = 0 then
|
1069 |
Result := nil;
|
1070 |
end;
|
1071 |
{$ENDIF}
|
1072 |
|
1073 |
constructor TDBInformation.Create(api: TFBClientAPI; aSize: integer);
|
1074 |
begin
|
1075 |
inherited Create(api,aSize);
|
1076 |
FIntegerType := dtInteger;
|
1077 |
end;
|
1078 |
|
1079 |
{ TServiceQueryResults }
|
1080 |
|
1081 |
function TServiceQueryResults.AddListItem(BufPtr: PByte): POutputBlockItemData;
|
1082 |
var P: PByte;
|
1083 |
i: integer;
|
1084 |
group: byte;
|
1085 |
begin
|
1086 |
Result := inherited AddListItem(BufPtr);
|
1087 |
P := BufPtr + 1;
|
1088 |
i := 0;
|
1089 |
group := byte(BufPtr^);
|
1090 |
if group in [isc_info_svc_get_users,isc_info_svc_limbo_trans] then
|
1091 |
begin
|
1092 |
with FFirebirdClientAPI do
|
1093 |
Result^.FSize := DecodeInteger(P,2) + 3;
|
1094 |
Inc(P,2);
|
1095 |
end;
|
1096 |
with Result^ do
|
1097 |
begin
|
1098 |
while (P < FBufPtr + FSize) and (P^ <> isc_info_flag_end) do
|
1099 |
begin
|
1100 |
SetLength(FSubItems,i+1);
|
1101 |
FSubItems[i] := nil;
|
1102 |
case group of
|
1103 |
isc_info_svc_svr_db_info:
|
1104 |
case integer(P^) of
|
1105 |
isc_spb_num_att,
|
1106 |
isc_spb_num_db:
|
1107 |
FSubItems[i] := AddIntegerItem(P);
|
1108 |
|
1109 |
isc_spb_dbname:
|
1110 |
FSubItems[i] := AddStringItem(P);
|
1111 |
|
1112 |
else
|
1113 |
IBError(ibxeOutputParsingError, [integer(P^),BufToStr(P,FSize - (P-FBufPtr))]);
|
1114 |
end;
|
1115 |
|
1116 |
isc_info_svc_get_license:
|
1117 |
case integer(P^) of
|
1118 |
isc_spb_lic_id,
|
1119 |
isc_spb_lic_key:
|
1120 |
FSubItems[i] := AddIntegerItem(P);
|
1121 |
else
|
1122 |
IBError(ibxeOutputParsingError, [integer(P^),BufToStr(P,FSize - (P-FBufPtr))]);
|
1123 |
end;
|
1124 |
|
1125 |
isc_info_svc_limbo_trans:
|
1126 |
case integer(P^) of
|
1127 |
isc_spb_tra_id,
|
1128 |
isc_spb_single_tra_id,
|
1129 |
isc_spb_multi_tra_id:
|
1130 |
FSubItems[i] := AddIntegerItem(P);
|
1131 |
|
1132 |
isc_spb_tra_host_site,
|
1133 |
isc_spb_tra_remote_site,
|
1134 |
isc_spb_tra_db_path:
|
1135 |
FSubItems[i] := AddStringItem(P);
|
1136 |
|
1137 |
isc_spb_tra_advise,
|
1138 |
isc_spb_tra_state:
|
1139 |
FSubItems[i] := AddByteItem(P);
|
1140 |
else
|
1141 |
IBError(ibxeOutputParsingError, [integer(P^),BufToStr(P,FSize - (P-FBufPtr))]);
|
1142 |
end;
|
1143 |
|
1144 |
isc_info_svc_get_users:
|
1145 |
case integer(P^) of
|
1146 |
isc_spb_sec_admin,
|
1147 |
isc_spb_sec_userid,
|
1148 |
isc_spb_sec_groupid:
|
1149 |
FSubItems[i] := AddIntegerItem(P);
|
1150 |
|
1151 |
isc_spb_sec_username,
|
1152 |
isc_spb_sec_password,
|
1153 |
isc_spb_sec_firstname,
|
1154 |
isc_spb_sec_middlename,
|
1155 |
isc_spb_sec_lastname:
|
1156 |
FSubItems[i] := AddStringItem(P);
|
1157 |
|
1158 |
else
|
1159 |
IBError(ibxeOutputParsingError, [integer(P^),BufToStr(P,FSize - (P-FBufPtr))]);
|
1160 |
end;
|
1161 |
|
1162 |
end;
|
1163 |
P := P + FSubItems[i]^.FSize;
|
1164 |
Inc(i);
|
1165 |
end;
|
1166 |
FDataLength := 0;
|
1167 |
for i := 0 to Length(FSubItems) - 1 do
|
1168 |
FDataLength := FDataLength + FSubItems[i]^.FSize;
|
1169 |
if group in [isc_info_svc_get_users,isc_info_svc_limbo_trans] then
|
1170 |
Exit;
|
1171 |
|
1172 |
if (P < FBufPtr + FSize) and (P^ = isc_info_flag_end) then
|
1173 |
FSize := FDataLength + 2 {include start and end flag}
|
1174 |
else
|
1175 |
FSize := FDataLength + 1; {start flag only}
|
1176 |
end;
|
1177 |
end;
|
1178 |
|
1179 |
function TServiceQueryResults.AddSpecialItem(BufPtr: PByte
|
1180 |
): POutputBlockItemData;
|
1181 |
var P: PByte;
|
1182 |
i: integer;
|
1183 |
begin
|
1184 |
Result := inherited AddSpecialItem(BufPtr);
|
1185 |
with Result^ do
|
1186 |
begin
|
1187 |
with FFirebirdClientAPI do
|
1188 |
FDataLength := DecodeInteger(FBufPtr+1, 2);
|
1189 |
|
1190 |
P := FBufPtr + 3; {skip length bytes}
|
1191 |
i := 0;
|
1192 |
while P < FBufPtr + FDataLength do
|
1193 |
begin
|
1194 |
FSubItems[i] := AddIntegerItem(P);
|
1195 |
P := P + FSubItems[i]^.FSize;
|
1196 |
Inc(i);
|
1197 |
end;
|
1198 |
end;
|
1199 |
end;
|
1200 |
|
1201 |
procedure TServiceQueryResults.DoParseBuffer;
|
1202 |
var P: PByte;
|
1203 |
i: integer;
|
1204 |
begin
|
1205 |
P := Buffer;
|
1206 |
i := 0;
|
1207 |
while (P < Buffer + getBufSize) and (P^ <> isc_info_end) do
|
1208 |
begin
|
1209 |
SetLength(FItems,i+1);
|
1210 |
FItems[i] := nil;
|
1211 |
case integer(P^) of
|
1212 |
isc_info_svc_line,
|
1213 |
isc_info_svc_get_env,
|
1214 |
isc_info_svc_get_env_lock,
|
1215 |
isc_info_svc_get_env_msg,
|
1216 |
isc_info_svc_user_dbpath,
|
1217 |
isc_info_svc_server_version,
|
1218 |
isc_info_svc_implementation,
|
1219 |
isc_info_svc_to_eof:
|
1220 |
FItems[i] := AddStringItem(P);
|
1221 |
|
1222 |
isc_info_svc_get_license_mask,
|
1223 |
isc_info_svc_capabilities,
|
1224 |
isc_info_svc_version,
|
1225 |
isc_info_svc_running,
|
1226 |
isc_info_svc_stdin:
|
1227 |
FItems[i] := AddIntegerItem(P);
|
1228 |
|
1229 |
isc_info_svc_timeout,
|
1230 |
isc_info_data_not_ready,
|
1231 |
isc_info_truncated:
|
1232 |
FItems[i] := AddItem(P);
|
1233 |
|
1234 |
isc_info_svc_svr_db_info,
|
1235 |
isc_info_svc_get_license,
|
1236 |
isc_info_svc_limbo_trans,
|
1237 |
isc_info_svc_get_users:
|
1238 |
FItems[i] := AddListItem(P);
|
1239 |
|
1240 |
isc_info_svc_get_config:
|
1241 |
FItems[i] := AddSpecialItem(P);
|
1242 |
|
1243 |
|
1244 |
else
|
1245 |
IBError(ibxeOutputParsingError, [integer(P^),BufToStr(P,getBufSize - (P-Buffer))]);
|
1246 |
end;
|
1247 |
P := P + FItems[i]^.FSize;
|
1248 |
Inc(i);
|
1249 |
end;
|
1250 |
end;
|
1251 |
|
1252 |
{$IFNDEF FPC}
|
1253 |
function TServiceQueryResults.Find(ItemType: byte): IServiceQueryResultItem;
|
1254 |
begin
|
1255 |
Result := inherited Find(ItemType);
|
1256 |
if Result.GetSize = 0 then
|
1257 |
Result := nil;
|
1258 |
end;
|
1259 |
{$ENDIF}
|
1260 |
|
1261 |
{ TSQLInfoResultsBuffer }
|
1262 |
|
1263 |
function TSQLInfoResultsBuffer.AddListItem(BufPtr: PByte): POutputBlockItemData;
|
1264 |
var P: PByte;
|
1265 |
i: integer;
|
1266 |
begin
|
1267 |
Result := inherited AddListItem(BufPtr);
|
1268 |
P := BufPtr + 1;
|
1269 |
i := 0;
|
1270 |
|
1271 |
if byte(BufPtr^) = isc_info_sql_records then
|
1272 |
begin
|
1273 |
with FFirebirdClientAPI do
|
1274 |
Result^.FSize := DecodeInteger(P,2) + 3;
|
1275 |
Inc(P,2);
|
1276 |
with Result^ do
|
1277 |
begin
|
1278 |
while (P < FBufPtr + FSize) and (byte(P^) <> isc_info_end) do
|
1279 |
begin
|
1280 |
SetLength(FSubItems,i+1);
|
1281 |
case integer(P^) of
|
1282 |
isc_info_req_select_count,
|
1283 |
isc_info_req_insert_count,
|
1284 |
isc_info_req_update_count,
|
1285 |
isc_info_req_delete_count:
|
1286 |
FSubItems[i] := AddIntegerItem(P);
|
1287 |
|
1288 |
isc_info_truncated:
|
1289 |
begin
|
1290 |
FTruncated := true;
|
1291 |
Exit;
|
1292 |
end;
|
1293 |
|
1294 |
isc_info_error:
|
1295 |
begin
|
1296 |
FError := true;
|
1297 |
Exit;
|
1298 |
end;
|
1299 |
else
|
1300 |
FSubItems[i] := AddSpecialItem(P);
|
1301 |
end;
|
1302 |
P := P + FSubItems[i]^.FSize;
|
1303 |
Inc(i);
|
1304 |
end;
|
1305 |
end;
|
1306 |
end;
|
1307 |
end;
|
1308 |
|
1309 |
procedure TSQLInfoResultsBuffer.DoParseBuffer;
|
1310 |
var P: PByte;
|
1311 |
index: integer;
|
1312 |
begin
|
1313 |
P := Buffer;
|
1314 |
index := 0;
|
1315 |
SetLength(FItems,0);
|
1316 |
while (P^ <> isc_info_end) and (P < Buffer + getBufSize) do
|
1317 |
begin
|
1318 |
SetLength(FItems,index+1);
|
1319 |
case byte(P^) of
|
1320 |
isc_info_sql_stmt_type:
|
1321 |
FItems[index] := AddIntegerItem(P);
|
1322 |
|
1323 |
isc_info_sql_get_plan:
|
1324 |
FItems[index] := AddStringItem(P);
|
1325 |
|
1326 |
isc_info_sql_records:
|
1327 |
FItems[index] := AddListItem(P);
|
1328 |
|
1329 |
isc_info_truncated:
|
1330 |
begin
|
1331 |
FTruncated := true;
|
1332 |
Exit;
|
1333 |
end;
|
1334 |
|
1335 |
isc_info_error:
|
1336 |
begin
|
1337 |
FError := true;
|
1338 |
Exit;
|
1339 |
end;
|
1340 |
|
1341 |
else
|
1342 |
FItems[index] := AddSpecialItem(P);
|
1343 |
end;
|
1344 |
P := P + FItems[index]^.FSize;
|
1345 |
Inc(index);
|
1346 |
end;
|
1347 |
end;
|
1348 |
|
1349 |
constructor TSQLInfoResultsBuffer.Create(api: TFBClientAPI; aSize: integer);
|
1350 |
begin
|
1351 |
inherited Create(api,aSize);
|
1352 |
FIntegerType := dtInteger;
|
1353 |
end;
|
1354 |
|
1355 |
{ TBlobInfo }
|
1356 |
|
1357 |
procedure TBlobInfo.DoParseBuffer;
|
1358 |
var P: PByte;
|
1359 |
index: integer;
|
1360 |
begin
|
1361 |
P := Buffer;
|
1362 |
index := 0;
|
1363 |
SetLength(FItems,0);
|
1364 |
while (P^ <> isc_info_end) and (P < Buffer + getBufSize) do
|
1365 |
begin
|
1366 |
SetLength(FItems,index+1);
|
1367 |
case byte(P^) of
|
1368 |
isc_info_blob_num_segments,
|
1369 |
isc_info_blob_max_segment,
|
1370 |
isc_info_blob_total_length,
|
1371 |
isc_info_blob_type:
|
1372 |
FItems[index] := AddIntegerItem(P);
|
1373 |
else
|
1374 |
FItems[index] := AddSpecialItem(P);
|
1375 |
end;
|
1376 |
P := P + FItems[index]^.FSize;
|
1377 |
Inc(index);
|
1378 |
end;
|
1379 |
end;
|
1380 |
|
1381 |
constructor TBlobInfo.Create(api: TFBClientAPI; aSize: integer);
|
1382 |
begin
|
1383 |
inherited Create(api,aSize);
|
1384 |
FIntegerType := dtInteger;
|
1385 |
end;
|
1386 |
|
1387 |
end.
|
1388 |
|