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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/jaegertracing/thrift/lib/delphi/src/Thrift.Stream.pas | |
parent | Initial commit. (diff) | |
download | ceph-upstream.tar.xz ceph-upstream.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/jaegertracing/thrift/lib/delphi/src/Thrift.Stream.pas | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/delphi/src/Thrift.Stream.pas b/src/jaegertracing/thrift/lib/delphi/src/Thrift.Stream.pas new file mode 100644 index 000000000..3308c53a5 --- /dev/null +++ b/src/jaegertracing/thrift/lib/delphi/src/Thrift.Stream.pas @@ -0,0 +1,319 @@ +(* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + *) + +unit Thrift.Stream; + +{$I Thrift.Defines.inc} + +interface + +uses + Classes, + SysUtils, + SysConst, + RTLConsts, + {$IFDEF OLD_UNIT_NAMES} + ActiveX, + {$ELSE} + Winapi.ActiveX, + {$ENDIF} + Thrift.Utils; + +type + + IThriftStream = interface + ['{2A77D916-7446-46C1-8545-0AEC0008DBCA}'] + procedure Write( const buffer: TBytes; offset: Integer; count: Integer); overload; + procedure Write( const pBuf : Pointer; offset: Integer; count: Integer); overload; + function Read( var buffer: TBytes; offset: Integer; count: Integer): Integer; overload; + function Read( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer): Integer; overload; + procedure Open; + procedure Close; + procedure Flush; + function IsOpen: Boolean; + function ToArray: TBytes; + end; + + TThriftStreamImpl = class( TInterfacedObject, IThriftStream) + private + procedure CheckSizeAndOffset( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer); overload; + protected + procedure Write( const buffer: TBytes; offset: Integer; count: Integer); overload; inline; + procedure Write( const pBuf : Pointer; offset: Integer; count: Integer); overload; virtual; + function Read( var buffer: TBytes; offset: Integer; count: Integer): Integer; overload; inline; + function Read( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer): Integer; overload; virtual; + procedure Open; virtual; abstract; + procedure Close; virtual; abstract; + procedure Flush; virtual; abstract; + function IsOpen: Boolean; virtual; abstract; + function ToArray: TBytes; virtual; abstract; + end; + + TThriftStreamAdapterDelphi = class( TThriftStreamImpl ) + private + FStream : TStream; + FOwnsStream : Boolean; + protected + procedure Write( const pBuf : Pointer; offset: Integer; count: Integer); override; + function Read( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer): Integer; override; + procedure Open; override; + procedure Close; override; + procedure Flush; override; + function IsOpen: Boolean; override; + function ToArray: TBytes; override; + public + constructor Create( const AStream: TStream; AOwnsStream : Boolean); + destructor Destroy; override; + end; + + TThriftStreamAdapterCOM = class( TThriftStreamImpl) + private + FStream : IStream; + protected + procedure Write( const pBuf : Pointer; offset: Integer; count: Integer); override; + function Read( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer): Integer; override; + procedure Open; override; + procedure Close; override; + procedure Flush; override; + function IsOpen: Boolean; override; + function ToArray: TBytes; override; + public + constructor Create( const AStream: IStream); + end; + +implementation + +{ TThriftStreamAdapterCOM } + +procedure TThriftStreamAdapterCOM.Close; +begin + FStream := nil; +end; + +constructor TThriftStreamAdapterCOM.Create( const AStream: IStream); +begin + inherited Create; + FStream := AStream; +end; + +procedure TThriftStreamAdapterCOM.Flush; +begin + if IsOpen then begin + if FStream <> nil then begin + FStream.Commit( STGC_DEFAULT ); + end; + end; +end; + +function TThriftStreamAdapterCOM.IsOpen: Boolean; +begin + Result := FStream <> nil; +end; + +procedure TThriftStreamAdapterCOM.Open; +begin + // nothing to do +end; + +function TThriftStreamAdapterCOM.Read( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer): Integer; +var pTmp : PByte; +begin + inherited; + + if count >= buflen-offset + then count := buflen-offset; + + Result := 0; + if FStream <> nil then begin + if count > 0 then begin + pTmp := pBuf; + Inc( pTmp, offset); + FStream.Read( pTmp, count, @Result); + end; + end; +end; + +function TThriftStreamAdapterCOM.ToArray: TBytes; +var + statstg: TStatStg; + len : Integer; + NewPos : {$IF CompilerVersion >= 29.0} UInt64 {$ELSE} Int64 {$IFEND}; + cbRead : Integer; +begin + FillChar( statstg, SizeOf( statstg), 0); + len := 0; + if IsOpen then begin + if Succeeded( FStream.Stat( statstg, STATFLAG_NONAME )) then begin + len := statstg.cbSize; + end; + end; + + SetLength( Result, len ); + + if len > 0 then begin + if Succeeded( FStream.Seek( 0, STREAM_SEEK_SET, NewPos) ) then begin + FStream.Read( @Result[0], len, @cbRead); + end; + end; +end; + +procedure TThriftStreamAdapterCOM.Write( const pBuf: Pointer; offset: Integer; count: Integer); +var nWritten : Integer; + pTmp : PByte; +begin + inherited; + if IsOpen then begin + if count > 0 then begin + pTmp := pBuf; + Inc( pTmp, offset); + FStream.Write( pTmp, count, @nWritten); + end; + end; +end; + +{ TThriftStreamImpl } + +procedure TThriftStreamImpl.CheckSizeAndOffset( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer); +begin + if count > 0 then begin + if (offset < 0) or ( offset >= buflen) then begin + raise ERangeError.Create( SBitsIndexError ); + end; + if count > buflen then begin + raise ERangeError.Create( SBitsIndexError ); + end; + end; +end; + +function TThriftStreamImpl.Read(var buffer: TBytes; offset, count: Integer): Integer; +begin + if Length(buffer) > 0 + then Result := Read( @buffer[0], Length(buffer), offset, count) + else Result := 0; +end; + +function TThriftStreamImpl.Read( const pBuf : Pointer; const buflen : Integer; offset: Integer; count: Integer): Integer; +begin + Result := 0; + CheckSizeAndOffset( pBuf, buflen, offset, count ); +end; + +procedure TThriftStreamImpl.Write(const buffer: TBytes; offset, count: Integer); +begin + if Length(buffer) > 0 + then Write( @buffer[0], offset, count); +end; + +procedure TThriftStreamImpl.Write( const pBuf : Pointer; offset: Integer; count: Integer); +begin + CheckSizeAndOffset( pBuf, offset+count, offset, count); +end; + +{ TThriftStreamAdapterDelphi } + +procedure TThriftStreamAdapterDelphi.Close; +begin + FStream.Free; + FStream := nil; + FOwnsStream := False; +end; + +constructor TThriftStreamAdapterDelphi.Create( const AStream: TStream; AOwnsStream: Boolean); +begin + inherited Create; + FStream := AStream; + FOwnsStream := AOwnsStream; +end; + +destructor TThriftStreamAdapterDelphi.Destroy; +begin + if FOwnsStream + then Close; + + inherited; +end; + +procedure TThriftStreamAdapterDelphi.Flush; +begin + // nothing to do +end; + +function TThriftStreamAdapterDelphi.IsOpen: Boolean; +begin + Result := FStream <> nil; +end; + +procedure TThriftStreamAdapterDelphi.Open; +begin + // nothing to do +end; + +function TThriftStreamAdapterDelphi.Read(const pBuf : Pointer; const buflen : Integer; offset, count: Integer): Integer; +var pTmp : PByte; +begin + inherited; + + if count >= buflen-offset + then count := buflen-offset; + + if count > 0 then begin + pTmp := pBuf; + Inc( pTmp, offset); + Result := FStream.Read( pTmp^, count) + end + else Result := 0; +end; + +function TThriftStreamAdapterDelphi.ToArray: TBytes; +var + OrgPos : Integer; + len : Integer; +begin + len := 0; + if FStream <> nil then + begin + len := FStream.Size; + end; + + SetLength( Result, len ); + + if len > 0 then + begin + OrgPos := FStream.Position; + try + FStream.Position := 0; + FStream.ReadBuffer( Pointer(@Result[0])^, len ); + finally + FStream.Position := OrgPos; + end; + end +end; + +procedure TThriftStreamAdapterDelphi.Write(const pBuf : Pointer; offset, count: Integer); +var pTmp : PByte; +begin + inherited; + if count > 0 then begin + pTmp := pBuf; + Inc( pTmp, offset); + FStream.Write( pTmp^, count) + end; +end; + +end. |