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root/public/ibx/trunk/fbintf/IB.pas

Comparing ibx/trunk/fbintf/IB.pas (file contents):
Revision 117 by tony, Mon Jan 22 13:58:11 2018 UTC vs.
Revision 270 by tony, Fri Jan 18 11:10:37 2019 UTC

#	Line 73 | Line 73 | unit IB;
73		{$IFEND}
74		{$ENDIF}
75
76	+	{$IFNDEF LEGACYFIREBIRDAPIONLY}
77		{$DEFINE USEFIREBIRD3API}
78	+	{$ENDIF}
79	+	{$IFNDEF FIREBIRD3APIONLY}
80		{$DEFINE USELEGACYFIREBIRDAPI}
81	+	{$ENDIF}
82
83		{
84		This unit defines the interfaces used to provide the Pascal Language
#	Line 122 | Line 126 | unit IB;
126		interface
127
128		uses
129	<	Classes, SysUtils, DB, FBMessages, IBExternals;
129	>	Classes,
130	>	{$IFDEF WINDOWS}Windows, {$ENDIF}
131	>	{$IFDEF FPC} Dynlibs, {$ENDIF}
132	>	SysUtils, DB, FBMessages, IBExternals;
133
134		const
135		{Interface version information}
136		FBIntf_Major = 1;
137	<	FBIntf_Minor = 0;
138	<	FBIntf_Release = 2;
139	<	FBIntf_Version = '1.0.2';
137	>	FBIntf_Minor = 1;
138	>	FBIntf_Release = 4;
139	>	FBIntf_Version = '1.1.4';
140
141		{These include files are converted from the 'C' originals in the Firebird API
142		and define the various constants used by the API}
#	Line 173 | Line 180 | type
180		PISC_QUAD            = ^TISC_QUAD;
181
182		{$IFNDEF FPC}
183	+	{Delphi missing definitions}
184	+	type
185	+	TLibHandle = THandle;
186	+
187	+	const
188	+	NilHandle = 0;
189	+	DirectorySeparator = '\';
190	+
191		{Delphi only seems to define CP_UTF8 and CP_UTF16}
192		const
193		CP_ACP     = 0;     // default to ANSI code page
#	Line 200 | Line 215 | type
215		TFBStatusCode = cardinal;
216		TByteArray = array of byte;
217
218	+	IFirebirdAPI = interface;
219		IAttachment = interface;
220		ITransaction = interface;
221
#	Line 395 | Line 411 | type
411		the output of an SQL Statement.
412		}
413
414	+	TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
415	+	dfDateTime,   {SQL DATETIME}
416	+	dfTime);      {SQL TIME}
417	+
418		{ IColumnMetaData }
419
420		IColumnMetaData = interface
#	Line 415 | Line 435 | type
435		function GetSize: cardinal;
436		function GetArrayMetaData: IArrayMetaData; {Valid only for Array SQL Type}
437		function GetBlobMetaData: IBlobMetaData; {Valid only for Blob SQL Type}
438	+	function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
439		property Name: AnsiString read GetName;
440		property Size: cardinal read GetSize;
441		property SQLType: cardinal read GetSQLType;
#	Line 632 | Line 653 | type
653		psRealTime, psUserTime, psBuffers,
654		psReads, psWrites, psFetches,psDeltaMemory);
655
656	<	TPerfCounters = array[TPerfStats] of comp;
656	>	TPerfCounters = array[TPerfStats] of Int64;
657
658		{The IStatement interface provides access to an SQL Statement once it has been
659		initially prepared. The interface is returned from the IAttachment interface.
#	Line 646 | Line 667 | type
667		function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
668		function GetSQLStatementType: TIBSQLStatementTypes;
669		function GetSQLText: AnsiString;
670	+	function GetProcessedSQLText: AnsiString;
671		function GetSQLDialect: integer;
672		function IsPrepared: boolean;
673		procedure Prepare(aTransaction: ITransaction=nil);
#	Line 773 | Line 795 | type
795		function getAsInteger: integer;
796		procedure DecodeIDCluster(var ConnectionType: integer; var DBFileName, DBSiteName: AnsiString);
797		function getAsBytes: TByteArray;
798	+	function getAsDateTime: TDateTime;
799		procedure DecodeVersionString(var Version: byte; var VersionString: AnsiString);
800		function getOperationCounts: TDBOperationCounts;
801		procedure DecodeUserNames(UserNames: TStrings);
#	Line 799 | Line 822 | type
822		property Items[index: integer]: IDBInfoItem read getItem; default;
823		end;
824
825	+	{The Database Information Request Block is used to pass requests for
826	+	database information where at least one item requested has a parameter.
827	+	At present, this is only fb_info_page_contents which has a single
828	+	integer parameter.}
829	+
830	+	IDIRBItem = interface(IParameterBlockItem)
831	+	['{d34a7511-8435-4a24-81a7-5103d218d234}']
832	+	end;
833	+
834	+	IDIRB = interface(IParameterBlock<IDIRBItem>)
835	+	['{1010e5ac-0a8f-403b-a302-91625e9d9579}']
836	+	end;
837	+
838	+
839		{The Database Parameter Block (DPB).
840
841		The DPB provides the parameters used when connecting to a database. It is allocated
#	Line 847 | Line 884 | type
884
885		IAttachment = interface
886		['{466e9b67-9def-4807-b3e7-e08a35e7185c}']
887	+	function getFirebirdAPI: IFirebirdAPI;
888		function getDPB: IDPB;
889		function AllocateBPB: IBPB;
890	+	function AllocateDIRB: IDIRB;
891		procedure Connect;
892		procedure Disconnect(Force: boolean=false);
893		function IsConnected: boolean;
#	Line 881 | Line 920 | type
920		function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; overload;
921		function Prepare(transaction: ITransaction; sql: AnsiString): IStatement; overload;
922		function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
923	<	aSQLDialect: integer; GenerateParamNames: boolean=false): IStatement; overload;
923	>	aSQLDialect: integer; GenerateParamNames: boolean=false;
924	>	CaseSensitiveParams: boolean = false): IStatement; overload;
925		function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
926	<	GenerateParamNames: boolean=false): IStatement; overload;
926	>	GenerateParamNames: boolean=false;
927	>	CaseSensitiveParams: boolean = false): IStatement; overload;
928
929		{Events}
930		function GetEventHandler(Events: TStrings): IEvents; overload;
#	Line 911 | Line 952 | type
952		function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData;
953		function GetDBInformation(Requests: array of byte): IDBInformation; overload;
954		function GetDBInformation(Request: byte): IDBInformation; overload;
955	+	function GetDBInformation(Requests: IDIRB): IDBInformation; overload;
956		function GetConnectString: AnsiString;
957		function GetRemoteProtocol: AnsiString;
958	+	function GetAuthenticationMethod: AnsiString;
959	+	function GetSecurityDatabase: AnsiString;
960		function GetODSMajorVersion: integer;
961		function GetODSMinorVersion: integer;
962	+	procedure getFBVersion(version: TStrings);
963		function HasActivity: boolean;
964
965		{Character Sets}
#	Line 929 | Line 974 | type
974		AllowReverseLookup:boolean; out CharSetID: integer);
975		end;
976
977	<	TProtocol = (TCP, SPX, NamedPipe, Local);
977	>	TProtocolAll = (TCP, SPX, NamedPipe, Local, inet, inet4, inet6, wnet, xnet, unknownProtocol);
978	>	TProtocol = TCP..xnet;
979
980		{Service Parameter Block (SPB).
981
#	Line 1034 | Line 1080 | type
1080		property Count: integer read getCount;
1081		end;
1082
1083	+	IFirebirdLibrary = interface;
1084	+
1085		{The IServiceManager interface provides access to a service manager. It can
1086		used to Detach and re-attach to Service Manager, to start services and to
1087		query the service manager.
#	Line 1045 | Line 1093 | type
1093
1094		IServiceManager = interface
1095		['{905b587d-1e1f-4e40-a3f8-a3519f852e48}']
1096	+	function getFirebirdAPI: IFirebirdAPI;
1097		function getSPB: ISPB;
1098		function getServerName: AnsiString;
1099	+	function getProtocol: TProtocol;
1100	+	function getPortNo: AnsiString;
1101		procedure Attach;
1102		procedure Detach(Force: boolean=false);
1103		function IsAttached: boolean;
1104		function AllocateSRB: ISRB;
1105		function AllocateSQPB: ISQPB;
1106	<	procedure Start(Request: ISRB);
1107	<	function Query(SQPB: ISQPB; Request: ISRB) :IServiceQueryResults; overload;
1108	<	function Query(Request: ISRB) :IServiceQueryResults; overload;
1106	>	function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
1107	>	function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
1108	>	function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
1109	>	end;
1110	>
1111	>	{Tbe Firebird Library API used to get information about the Firebird library}
1112	>
1113	>
1114	>	IFirebirdLibrary = interface
1115	>	['{3c04e0a1-12e0-428a-b2e1-bc6fcd97b79b}']
1116	>	function GetHandle: TLibHandle;
1117	>	function GetLibraryName: string;
1118	>	function GetLibraryFilePath: string;
1119	>	function GetFirebirdAPI: IFirebirdAPI;
1120		end;
1121
1122		{The Firebird API.
#	Line 1083 | Line 1145 | type
1145		{Service Manager}
1146		function HasServiceAPI: boolean;
1147		function AllocateSPB: ISPB;
1148	<	function GetServiceManager(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager;
1148	>	function GetServiceManager(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
1149	>	function GetServiceManager(ServerName: AnsiString; Port: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
1150
1151		{Information}
1152		function GetStatus: IStatus;
1090	–	function GetLibraryName: string;
1153		function HasRollbackRetaining: boolean;
1154		function IsEmbeddedServer: boolean;
1155		function GetImplementationVersion: AnsiString;
#	Line 1095 | Line 1157 | type
1157		{Firebird 3 API}
1158		function HasMasterIntf: boolean;
1159		function GetIMaster: TObject;
1160	+	function GetFBLibrary: IFirebirdLibrary;
1161		end;
1162
1163		type
#	Line 1147 | Line 1210 | function FirebirdAPI: IFirebirdAPI;
1210		function TryIBLoad: Boolean;
1211		procedure CheckIBLoaded;
1212
1213	+	{If you want to explicitly load the Firebird library from a
1214	+	non-default location then use this function and its GetFirebirdAPI function
1215	+	to get the API.}
1216	+
1217	+	function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary;
1218	+
1219		implementation
1220
1221		uses FBClientAPI
1222		{$IFDEF USELEGACYFIREBIRDAPI}, FB25ClientAPI {$ENDIF}
1223		{$IFDEF USEFIREBIRD3API}, FB30ClientAPI {$ENDIF};
1224
1225	<	var FFirebirdAPI: IFirebirdAPI;
1225	>	var FDefaultFBLibrary: IFirebirdLibrary;
1226	>
1227	>	type
1228	>
1229	>	{ TFBLibrary }
1230	>
1231	>	TFBLibraryImpl = class(TFBLibrary)
1232	>	protected
1233	>	function GetFirebird3API: IFirebirdAPI; override;
1234	>	function GetLegacyFirebirdAPI: IFirebirdAPI; override;
1235	>	end;
1236	>
1237	>	function TFBLibraryImpl.GetFirebird3API: IFirebirdAPI;
1238	>	begin
1239	>	{$IFDEF USEFIREBIRD3API}
1240	>	Result := TFB30ClientAPI.Create(self);
1241	>	{$ELSE}
1242	>	Result := nil;
1243	>	{$ENDIF}
1244	>	end;
1245	>
1246	>	function TFBLibraryImpl.GetLegacyFirebirdAPI: IFirebirdAPI;
1247	>	begin
1248	>	{$IFDEF USELEGACYFIREBIRDAPI}
1249	>	Result := TFB25ClientAPI.Create(self);
1250	>	{$ELSE}
1251	>	Result := nil;
1252	>	{$ENDIF}
1253	>	end;
1254
1255		function FirebirdAPI: IFirebirdAPI;
1256		begin
1257	<	if FFirebirdAPI = nil then
1257	>	if FDefaultFBLibrary = nil then
1258		CheckIBLoaded;
1259	<	Result := FFirebirdAPI;
1259	>	Result := FDefaultFBLibrary.GetFirebirdAPI;
1260		end;
1261
1262		function TryIBLoad: Boolean;
1263	+	var fblib: IFirebirdLibrary;
1264		begin
1265	<	Result := FFirebirdAPI <> nil;
1265	>	Result := FDefaultFBLibrary <> nil;
1266		try
1169	–	{$IFDEF USEFIREBIRD3API}
1267		if not Result then
1268		begin
1269	<	FFirebirdAPI := TFB30ClientAPI.Create;
1270	<	Result := FFirebirdAPI.HasMasterIntf;
1271	<	end;
1272	<	{$ENDIF}
1176	<	{$IFDEF USELEGACYFIREBIRDAPI}
1177	<	if not Result then
1178	<	begin
1179	<	FFirebirdAPI := nil;
1180	<	FFirebirdAPI := TFB25ClientAPI.Create;
1181	<	Result := true;
1182	<	end;
1183	<	{$ENDIF}
1184	<	if Result and not (FFirebirdAPI as TFBClientAPI).IsLibraryLoaded then
1185	<	begin
1186	<	Result := false;
1187	<	FFirebirdAPI := nil;
1269	>	fblib := TFBLibraryImpl.Create;
1270	>	if (fblib <> nil) and (fblib.GetFirebirdAPI <> nil) then
1271	>	FDefaultFBLibrary := fblib;
1272	>	Result := FDefaultFBLibrary <> nil;
1273		end;
1274		except
1275		SysUtils.showexception(ExceptObject,ExceptAddr);
#	Line 1198 | Line 1283 | begin
1283		IBError(ibxeInterBaseMissing, [nil]);
1284		end;
1285
1286	+	function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary;
1287	+	var fblib: IFirebirdLibrary;
1288	+	begin
1289	+	if trim(aLibPathName) = '' then
1290	+	begin
1291	+	CheckIBLoaded;
1292	+	Result := FDefaultFBLibrary;
1293	+	end
1294	+	else
1295	+	begin
1296	+	fblib := TFBLibraryImpl.GetFBLibrary(aLibPathName);
1297	+	if (fblib = nil) or (fblib.GetFirebirdAPI = nil) then
1298	+	IBError(ibxeInterBaseMissing, [nil]);
1299	+	Result := fblib;
1300	+	end;
1301	+	end;
1302	+
1303		{ EIBError }
1304
1305		constructor EIBError.Create(ASQLCode: Long; Msg: AnsiString);
#	Line 1228 | Line 1330 | begin
1330		end;
1331
1332		initialization
1333	<	FFirebirdAPI := nil;
1333	>	FDefaultFBLibrary := nil;
1334
1335	+	finalization
1336	+	FDefaultFBLibrary := nil;
1337
1338		end.
1339

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