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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | daniel-mar | 1 | unit ZMWorkFile19; |
| 2 | |||
| 3 | (* |
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| 4 | ZMWorkFile19.pas - basic in/out for zip files |
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| 5 | Copyright (C) 2009, 2010 by Russell J. Peters, Roger Aelbrecht, |
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| 6 | Eric W. Engler and Chris Vleghert. |
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| 7 | |||
| 8 | This file is part of TZipMaster Version 1.9. |
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| 9 | |||
| 10 | TZipMaster is free software: you can redistribute it and/or modify |
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| 11 | it under the terms of the GNU Lesser General Public License as published by |
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| 12 | the Free Software Foundation, either version 3 of the License, or |
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| 13 | (at your option) any later version. |
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| 14 | |||
| 15 | TZipMaster is distributed in the hope that it will be useful, |
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | GNU Lesser General Public License for more details. |
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| 19 | |||
| 20 | You should have received a copy of the GNU Lesser General Public License |
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| 21 | along with TZipMaster. If not, see <http://www.gnu.org/licenses/>. |
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| 22 | |||
| 23 | contact: problems@delphizip.org (include ZipMaster in the subject). |
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| 24 | updates: http://www.delphizip.org |
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| 25 | DelphiZip maillist subscribe at http://www.freelists.org/list/delphizip |
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| 26 | |||
| 27 | modified 2010-06-20 |
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| 28 | --------------------------------------------------------------------------- *) |
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| 29 | (* |
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| 30 | if Len < 0 then must process on this segment |
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| 31 | ????Full - gives error if not processed non-split |
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| 32 | ????Check - gives error if not all done |
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| 33 | // Len = int64 |
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| 34 | function Seek(offset: Int64; From: integer): Int64; virtual; |
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| 35 | procedure CopyTo(var dest: TZMWorkFile; Len: Int64; ErrId: Integer); virtual; |
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| 36 | // only operate on < 2G at a time |
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| 37 | procedure CopyToFull(var dest: TZMWorkFile; Len, ErrId: Integer); virtual; |
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| 38 | function Read(var Buffer; ReadLen: Integer): Integer; virtual; |
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| 39 | procedure ReadCheck(var Buffer; Len, ErrId: Integer); virtual; |
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| 40 | procedure ReadFull(var Buffer; ReadLen, DSErrIdent: Integer); virtual; |
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| 41 | function Write(const Buffer; Len: Integer): Integer; virtual; |
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| 42 | function WriteCheck(const Buffer; Len, ErrId: Integer): Integer; virtual; |
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| 43 | procedure WriteFull(const Buffer; Len, ErrIdent: Integer); virtual; |
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| 44 | *) |
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| 45 | interface |
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| 46 | |||
| 47 | uses |
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| 48 | Classes, Windows, SysUtils, ZipMstr19, ZMDelZip19, ZMCore19, ZMDrv19; |
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| 49 | |||
| 50 | // file signitures read by OpenEOC |
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| 51 | type |
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| 52 | TZipFileSigs = (zfsNone, zfsLocal, zfsMulti, zfsDOS); |
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| 53 | |||
| 54 | type |
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| 55 | TZipNumberScheme = (znsNone, znsVolume, znsName, znsExt); |
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| 56 | |||
| 57 | type |
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| 58 | TZipWrites = (zwDefault, zwSingle, zwMultiple); |
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| 59 | |||
| 60 | const |
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| 61 | ProgressActions: array [TZipShowProgress] of TActionCodes = |
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| 62 | (zacTick, zacProgress, zacXProgress); |
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| 63 | MustFitError = -10999; |
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| 64 | MustFitFlag = $20000; // much bigger than any 'fixed' field |
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| 65 | MustFitMask = $1FFFF; // removes flag limits 'fixed' length |
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| 66 | |||
| 67 | type |
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| 68 | // TBytArray = array of Byte; |
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| 69 | TByteBuffer = array of Byte; |
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| 70 | |||
| 71 | type |
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| 72 | TZMWorkFile = class(TObject) |
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| 73 | private |
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| 74 | fAllowedSize: Int64; |
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| 75 | FBoss: TZMCore; |
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| 76 | fBytesRead: Int64; |
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| 77 | fBytesWritten: Int64; |
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| 78 | fDiskNr: Integer; |
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| 79 | fFileName: String; |
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| 80 | fFile_Size: Int64; |
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| 81 | fHandle: Integer; |
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| 82 | fInfo: Cardinal; |
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| 83 | // fIsMultiDisk: Boolean; |
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| 84 | fIsOpen: Boolean; |
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| 85 | fIsTemp: Boolean; |
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| 86 | fLastWrite: TFileTime; |
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| 87 | fOpenMode: Cardinal; |
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| 88 | fRealFileName: String; |
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| 89 | fRealFileSize: Int64; |
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| 90 | FReqFileName: String; |
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| 91 | fShowProgress: TZipShowProgress; |
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| 92 | fSig: TZipFileSigs; |
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| 93 | fStampDate: Cardinal; |
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| 94 | fTotalDisks: Integer; |
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| 95 | fWorkDrive: TZMWorkDrive; |
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| 96 | fWorker: TZMCore; |
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| 97 | FZipDiskAction: TZMDiskAction; |
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| 98 | FZipDiskStatus: TZMZipDiskStatus; |
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| 99 | WBuf: array of Byte; |
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| 100 | function GetConfirmErase: Boolean; |
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| 101 | function GetExists: Boolean; |
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| 102 | function GetKeepFreeOnAllDisks: Cardinal; |
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| 103 | function GetKeepFreeOnDisk1: Cardinal; |
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| 104 | function GetLastWritten: Cardinal; |
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| 105 | function GetMaxVolumeSize: Int64; |
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| 106 | function GetMinFreeVolumeSize: Cardinal; |
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| 107 | function GetPosition_F: Int64; |
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| 108 | function GetSpanOptions: TZMSpanOpts; |
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| 109 | procedure SetBoss(const Value: TZMCore); |
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| 110 | procedure SetFileName(const Value: String); |
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| 111 | procedure SetHandle(const Value: Integer); |
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| 112 | procedure SetKeepFreeOnAllDisks(const Value: Cardinal); |
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| 113 | procedure SetKeepFreeOnDisk1(const Value: Cardinal); |
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| 114 | procedure SetMaxVolumeSize(const Value: Int64); |
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| 115 | procedure SetMinFreeVolumeSize(const Value: Cardinal); |
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| 116 | procedure SetPosition(const Value: Int64); |
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| 117 | procedure SetSpanOptions(const Value: TZMSpanOpts); |
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| 118 | procedure SetWorkDrive(const Value: TZMWorkDrive); |
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| 119 | protected |
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| 120 | fBufferPosition: Integer; |
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| 121 | fConfirmErase: Boolean; |
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| 122 | fDiskBuffer: TByteBuffer; |
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| 123 | FDiskWritten: Cardinal; |
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| 124 | fSavedFileInfo: _BY_HANDLE_FILE_INFORMATION; |
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| 125 | fIsMultiPart: Boolean; |
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| 126 | FNewDisk: Boolean; |
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| 127 | FNumbering: TZipNumberScheme; |
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| 128 | function ChangeNumberedName(const FName: String; NewNbr: Cardinal; Remove: |
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| 129 | boolean): string; |
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| 130 | procedure CheckForDisk(writing, UnformOk: Boolean); |
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| 131 | procedure ClearFloppy(const dir: String); |
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| 132 | function Copy_File(Source: TZMWorkFile): Integer; |
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| 133 | procedure Diag(const msg: String); |
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| 134 | function EOS: Boolean; |
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| 135 | procedure FlushDiskBuffer; |
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| 136 | function GetFileInformation(var FileInfo: _BY_HANDLE_FILE_INFORMATION): Boolean; |
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| 137 | function GetPosition: Int64; |
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| 138 | function HasSpanSig(const FName: String): boolean; |
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| 139 | function IsRightDisk: Boolean; |
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| 140 | procedure NewFlushDisk; |
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| 141 | function NewSegment: Boolean; |
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| 142 | function VolName(Part: Integer): String; |
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| 143 | function OldVolName(Part: Integer): String; |
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| 144 | function WriteSplit(const Buffer; ToWrite: Integer): Integer; |
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| 145 | function ZipFormat(const NewName: String): Integer; |
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| 146 | property AllowedSize: Int64 Read fAllowedSize Write fAllowedSize; |
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| 147 | property LastWrite: TFileTime read fLastWrite write fLastWrite; |
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| 148 | property OpenMode: Cardinal read fOpenMode; |
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| 149 | public |
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| 150 | constructor Create(wrkr: TZMCore); virtual; |
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| 151 | procedure AfterConstruction; override; |
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| 152 | function AskAnotherDisk(const DiskFile: String): Integer; |
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| 153 | function AskOverwriteSegment(const DiskFile: String; DiskSeq: Integer): Integer; |
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| 154 | procedure AssignFrom(Src: TZMWorkFile); virtual; |
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| 155 | procedure BeforeDestruction; override; |
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| 156 | function CheckRead(var Buffer; Len: Integer): Boolean; overload; |
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| 157 | procedure CheckRead(var Buffer; Len, ErrId: Integer); overload; |
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| 158 | function CheckReads(var Buffer; const Lens: array of Integer): Boolean; |
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| 159 | overload; |
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| 160 | procedure CheckReads(var Buffer; const Lens: array of Integer; |
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| 161 | ErrId: Integer); overload; |
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| 162 | function CheckSeek(offset: Int64; from, ErrId: Integer): Int64; |
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| 163 | function CheckWrite(const Buffer; Len: Integer): Boolean; overload; |
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| 164 | procedure CheckWrite(const Buffer; Len, ErrId: Integer); overload; |
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| 165 | function CheckWrites(const Buffer; const Lens: array of Integer): Boolean; |
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| 166 | overload; |
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| 167 | procedure CheckWrites(const Buffer; const Lens: array of Integer; |
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| 168 | ErrId: Integer); overload; |
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| 169 | procedure ClearFileInformation; |
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| 170 | function CopyFrom(Source: TZMWorkFile; Len: Int64): Int64; |
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| 171 | function CreateMVFileNameEx(const FileName: String; |
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| 172 | StripPartNbr, Compat: Boolean): String; |
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| 173 | function DoFileWrite(const Buffer; Len: Integer): Integer; |
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| 174 | function FileDate: Cardinal; |
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| 175 | procedure File_Close; |
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| 176 | procedure File_Close_F; |
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| 177 | function File_Create(const theName: String): Boolean; |
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| 178 | function File_CreateTemp(const Prefix, Where: String): Boolean; |
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| 179 | function File_Open(Mode: Cardinal): Boolean; |
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| 180 | function File_Rename(const NewName: string; const Safe: Boolean = false) |
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| 181 | : Boolean; |
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| 182 | function FinishWrite: Integer; |
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| 183 | procedure GetNewDisk(DiskSeq: Integer; AllowEmpty: Boolean); |
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| 184 | function LastWriteTime(var last_write: TFileTime): Boolean; |
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| 185 | function MapNumbering(Opts: TZMSpanOpts): TZMSpanOpts; |
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| 186 | procedure ProgReport(prog: TActionCodes; xprog: Integer; const Name: String; |
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| 187 | size: Int64); |
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| 188 | function Read(var Buffer; Len: Integer): Integer; |
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| 189 | function ReadFromFile(var Buffer; Len: Integer): Integer; |
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| 190 | function Reads(var Buffer; const Lens: array of Integer): Integer; |
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| 191 | function Reads_F(var Buffer; const Lens: array of Integer): Integer; |
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| 192 | function ReadTo(strm: TStream; Count: Integer): Integer; |
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| 193 | function Read_F(var Buffer; Len: Integer): Integer; |
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| 194 | function SaveFileInformation: Boolean; |
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| 195 | function Seek(offset: Int64; from: Integer): Int64; |
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| 196 | function SeekDisk(Nr: Integer): Integer; |
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| 197 | function SetEndOfFile: Boolean; |
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| 198 | function VerifyFileInformation: Boolean; |
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| 199 | function WBuffer(size: Integer): pByte; |
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| 200 | function Write(const Buffer; Len: Integer): Integer; |
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| 201 | function WriteFrom(strm: TStream; Count: Integer): Int64; |
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| 202 | function Writes(const Buffer; const Lens: array of Integer): Integer; |
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| 203 | function Writes_F(const Buffer; const Lens: array of Integer): Integer; |
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| 204 | function WriteToFile(const Buffer; Len: Integer): Integer; |
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| 205 | function Write_F(const Buffer; Len: Integer): Integer; |
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| 206 | property Boss: TZMCore read FBoss write SetBoss; |
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| 207 | property BytesRead: Int64 read fBytesRead write fBytesRead; |
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| 208 | property BytesWritten: Int64 read fBytesWritten write fBytesWritten; |
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| 209 | property ConfirmErase: Boolean read GetConfirmErase write fConfirmErase; |
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| 210 | property DiskNr: Integer read fDiskNr write fDiskNr; |
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| 211 | property Exists: Boolean read GetExists; |
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| 212 | property FileName: String read fFileName write SetFileName; |
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| 213 | property File_Size: Int64 read fFile_Size write fFile_Size; |
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| 214 | property Handle: Integer read fHandle write SetHandle; |
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| 215 | property info: Cardinal read fInfo write fInfo; |
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| 216 | property IsMultiPart: Boolean read fIsMultiPart write fIsMultiPart; |
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| 217 | property IsOpen: Boolean read fIsOpen; |
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| 218 | property IsTemp: Boolean read fIsTemp write fIsTemp; |
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| 219 | property KeepFreeOnAllDisks: Cardinal read GetKeepFreeOnAllDisks write |
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| 220 | SetKeepFreeOnAllDisks; |
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| 221 | property KeepFreeOnDisk1: Cardinal read GetKeepFreeOnDisk1 write |
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| 222 | SetKeepFreeOnDisk1; |
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| 223 | property LastWritten: Cardinal read GetLastWritten; |
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| 224 | property MaxVolumeSize: Int64 read GetMaxVolumeSize write SetMaxVolumeSize; |
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| 225 | property MinFreeVolumeSize: Cardinal read GetMinFreeVolumeSize write |
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| 226 | SetMinFreeVolumeSize; |
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| 227 | property NewDisk: Boolean Read FNewDisk Write FNewDisk; |
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| 228 | property Numbering: TZipNumberScheme Read FNumbering Write FNumbering; |
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| 229 | property Position: Int64 read GetPosition write SetPosition; |
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| 230 | property RealFileName: String read fRealFileName; |
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| 231 | property RealFileSize: Int64 read fRealFileSize write fRealFileSize; |
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| 232 | property ReqFileName: String Read FReqFileName Write FReqFileName; |
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| 233 | property ShowProgress |
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| 234 | : TZipShowProgress read fShowProgress write fShowProgress; |
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| 235 | property Sig: TZipFileSigs read fSig write fSig; |
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| 236 | property SpanOptions: TZMSpanOpts read GetSpanOptions write SetSpanOptions; |
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| 237 | // if non-zero set fileDate |
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| 238 | property StampDate: Cardinal read fStampDate write fStampDate; |
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| 239 | property TotalDisks: Integer read fTotalDisks write fTotalDisks; |
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| 240 | property WorkDrive: TZMWorkDrive read fWorkDrive write SetWorkDrive; |
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| 241 | property Worker: TZMCore read fWorker write fWorker; |
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| 242 | end; |
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| 243 | |||
| 244 | const |
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| 245 | // zfi_None: Cardinal = 0; |
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| 246 | // zfi_Open: Cardinal = 1; |
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| 247 | // zfi_Create: Cardinal = 2; |
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| 248 | zfi_Dirty: Cardinal = 4; |
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| 249 | zfi_MakeMask: Cardinal = $07; |
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| 250 | zfi_Error: Cardinal = 8; |
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| 251 | // zfi_NotFound: cardinal = $10; // named file not found |
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| 252 | // zfi_NoLast: cardinal = $20; // last file not found |
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| 253 | zfi_Loading: cardinal = $40; |
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| 254 | zfi_Cancelled: cardinal = $80; // loading was cancelled |
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| 255 | // zfi_FileMask: cardinal = $F0; |
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| 256 | |||
| 257 | function FileTimeToLocalDOSTime(const ft: TFileTime): Cardinal; |
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| 258 | |||
| 259 | implementation |
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| 260 | |||
| 261 | uses |
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| 262 | Forms, Controls, Dialogs, ZMMsgStr19, ZMCtx19, ZMCompat19, ZMDlg19, |
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| 263 | ZMStructs19, ZMUtils19, ZMMsg19, ZMXcpt19; |
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| 264 | {$I '.\ZipVers19.inc'} |
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| 265 | {$IFDEF VER180} |
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| 266 | {$WARN SYMBOL_DEPRECATED OFF} |
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| 267 | {$ENDIF} |
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| 268 | |||
| 269 | const |
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| 270 | MAX_PARTS = 999; |
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| 271 | MaxDiskBufferSize = (4 * 1024 * 1024); // floppies only |
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| 272 | |||
| 273 | const |
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| 274 | SZipSet = 'ZipSet_'; |
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| 275 | SPKBACK = 'PKBACK#'; |
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| 276 | |||
| 277 | (* ? FormatFloppy |
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| 278 | *) |
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| 279 | function FormatFloppy(WND: HWND; const Drive: String): Integer; |
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| 280 | const |
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| 281 | SHFMT_ID_DEFAULT = $FFFF; |
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| 282 | { options } |
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| 283 | SHFMT_OPT_FULL = $0001; |
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| 284 | // SHFMT_OPT_SYSONLY = $0002; |
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| 285 | { return values } |
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| 286 | // SHFMT_ERROR = $FFFFFFFF; |
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| 287 | // -1 Error on last format, drive may be formatable |
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| 288 | // SHFMT_CANCEL = $FFFFFFFE; // -2 last format cancelled |
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| 289 | // SHFMT_NOFORMAT = $FFFFFFFD; // -3 drive is not formatable |
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| 290 | type |
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| 291 | TSHFormatDrive = function(WND: HWND; Drive, fmtID, Options: DWORD): DWORD; |
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| 292 | stdcall; |
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| 293 | var |
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| 294 | SHFormatDrive: TSHFormatDrive; |
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| 295 | var |
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| 296 | drv: Integer; |
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| 297 | hLib: THandle; |
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| 298 | OldErrMode: Integer; |
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| 299 | begin |
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| 300 | Result := -3; // error |
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| 301 | if not((Length(Drive) > 1) and (Drive[2] = ':') and CharInSet |
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| 302 | (Drive[1], ['A' .. 'Z', 'a' .. 'z'])) then |
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| 303 | exit; |
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| 304 | if GetDriveType(PChar(Drive)) <> DRIVE_REMOVABLE then |
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| 305 | exit; |
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| 306 | drv := Ord(Upcase(Drive[1])) - Ord('A'); |
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| 307 | OldErrMode := SetErrorMode(SEM_FAILCRITICALERRORS or SEM_NOGPFAULTERRORBOX); |
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| 308 | hLib := LoadLibrary('Shell32'); |
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| 309 | if hLib <> 0 then |
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| 310 | begin |
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| 311 | @SHFormatDrive := GetProcAddress(hLib, 'SHFormatDrive'); |
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| 312 | if @SHFormatDrive <> nil then |
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| 313 | try |
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| 314 | Result := SHFormatDrive(WND, drv, SHFMT_ID_DEFAULT, SHFMT_OPT_FULL); |
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| 315 | finally |
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| 316 | FreeLibrary(hLib); |
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| 317 | end; |
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| 318 | SetErrorMode(OldErrMode); |
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| 319 | end; |
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| 320 | end; |
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| 321 | |||
| 322 | function FileTimeToLocalDOSTime(const ft: TFileTime): Cardinal; |
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| 323 | var |
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| 324 | lf: TFileTime; |
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| 325 | wd: Word; |
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| 326 | wt: Word; |
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| 327 | begin |
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| 328 | Result := 0; |
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| 329 | if FileTimeToLocalFileTime(ft, lf) and FileTimeToDosDateTime(lf, wd, wt) then |
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| 330 | Result := (wd shl 16) or wt; |
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| 331 | end; |
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| 332 | |||
| 333 | { TZMWorkFile } |
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| 334 | |||
| 335 | constructor TZMWorkFile.Create(wrkr: TZMCore); |
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| 336 | begin |
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| 337 | inherited Create; |
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| 338 | fWorker := wrkr; |
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| 339 | fBoss := wrkr; |
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| 340 | end; |
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| 341 | |||
| 342 | procedure TZMWorkFile.AfterConstruction; |
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| 343 | begin |
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| 344 | inherited; |
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| 345 | fDiskBuffer := nil; |
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| 346 | fBufferPosition := -1; |
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| 347 | fInfo := 0; |
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| 348 | fHandle := -1; |
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| 349 | fIsMultiPart := false; |
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| 350 | fBytesWritten := 0; |
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| 351 | fBytesRead := 0; |
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| 352 | fOpenMode := 0; |
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| 353 | fNumbering := znsNone; |
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| 354 | fWorkDrive := TZMWorkDrive.Create; |
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| 355 | ClearFileInformation; |
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| 356 | end; |
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| 357 | |||
| 358 | function TZMWorkFile.AskAnotherDisk(const DiskFile: String): Integer; |
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| 359 | var |
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| 360 | MsgQ: String; |
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| 361 | tmpStatusDisk: TZMStatusDiskEvent; |
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| 362 | begin |
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| 363 | MsgQ := Boss.ZipLoadStr(DS_AnotherDisk); |
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| 364 | FZipDiskStatus := FZipDiskStatus + [zdsSameFileName]; |
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| 365 | tmpStatusDisk := worker.Master.OnStatusDisk; |
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| 366 | if Assigned(tmpStatusDisk) and not(zaaYesOvrwrt in Worker.AnswerAll) then |
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| 367 | begin |
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| 368 | FZipDiskAction := zdaOk; // The default action |
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| 369 | tmpStatusDisk(Boss.Master, 0, DiskFile, FZipDiskStatus, FZipDiskAction); |
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| 370 | case FZipDiskAction of |
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| 371 | zdaCancel: |
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| 372 | Result := idCancel; |
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| 373 | zdaReject: |
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| 374 | Result := idNo; |
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| 375 | zdaErase: |
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| 376 | Result := idOk; |
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| 377 | zdaYesToAll: |
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| 378 | begin |
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| 379 | Result := idOk; |
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| 380 | // Worker.AnswerAll := Worker.AnswerAll + [zaaYesOvrwrt]; |
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| 381 | end; |
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| 382 | zdaOk: |
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| 383 | Result := idOk; |
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| 384 | else |
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| 385 | Result := idOk; |
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| 386 | end; |
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| 387 | end |
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| 388 | else |
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| 389 | Result := Boss.ZipMessageDlgEx(Boss.ZipLoadStr(FM_Confirm), MsgQ, |
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| 390 | zmtWarning + DHC_SpanOvr, [mbOk, mbCancel]); |
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| 391 | end; |
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| 392 | |||
| 393 | function TZMWorkFile.AskOverwriteSegment(const DiskFile: String; DiskSeq: |
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| 394 | Integer): Integer; |
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| 395 | var |
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| 396 | MsgQ: String; |
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| 397 | tmpStatusDisk: TZMStatusDiskEvent; |
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| 398 | begin |
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| 399 | // Do we want to overwrite an existing file? |
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| 400 | if FileExists(DiskFile) then |
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| 401 | if (File_Age(DiskFile) = StampDate) and (Pred(DiskSeq) < DiskNr) |
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| 402 | then |
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| 403 | begin |
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| 404 | MsgQ := Boss.ZipFmtLoadStr(DS_AskPrevFile, [DiskSeq]); |
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| 405 | FZipDiskStatus := FZipDiskStatus + [zdsPreviousDisk]; |
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| 406 | end |
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| 407 | else |
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| 408 | begin |
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| 409 | MsgQ := Boss.ZipFmtLoadStr(DS_AskDeleteFile, [DiskFile]); |
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| 410 | FZipDiskStatus := FZipDiskStatus + [zdsSameFileName]; |
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| 411 | end |
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| 412 | else if not WorkDrive.DriveIsFixed then |
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| 413 | if (WorkDrive.VolumeSize <> WorkDrive.VolumeSpace) then |
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| 414 | FZipDiskStatus := FZipDiskStatus + [zdsHasFiles] |
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| 415 | // But not the same name |
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| 416 | else |
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| 417 | FZipDiskStatus := FZipDiskStatus + [zdsEmpty]; |
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| 418 | tmpStatusDisk := worker.Master.OnStatusDisk; |
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| 419 | if Assigned(tmpStatusDisk) and not(zaaYesOvrwrt in Worker.AnswerAll) then |
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| 420 | begin |
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| 421 | FZipDiskAction := zdaOk; // The default action |
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| 422 | tmpStatusDisk(Boss.Master, DiskSeq, DiskFile, FZipDiskStatus, |
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| 423 | FZipDiskAction); |
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| 424 | case FZipDiskAction of |
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| 425 | zdaCancel: |
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| 426 | Result := idCancel; |
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| 427 | zdaReject: |
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| 428 | Result := idNo; |
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| 429 | zdaErase: |
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| 430 | Result := idOk; |
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| 431 | zdaYesToAll: |
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| 432 | begin |
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| 433 | Result := idOk; |
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| 434 | Worker.AnswerAll := Worker.AnswerAll + [zaaYesOvrwrt]; |
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| 435 | end; |
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| 436 | zdaOk: |
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| 437 | Result := idOk; |
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| 438 | else |
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| 439 | Result := idOk; |
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| 440 | end; |
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| 441 | end |
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| 442 | else if ((FZipDiskStatus * [zdsPreviousDisk, zdsSameFileName]) <> []) and not |
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| 443 | ((zaaYesOvrwrt in Worker.AnswerAll) or Worker.Unattended) then |
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| 444 | begin |
||
| 445 | Result := Boss.ZipMessageDlgEx(Boss.ZipLoadStr(FM_Confirm), MsgQ, |
||
| 446 | zmtWarning + DHC_SpanOvr, [mbYes, mbNo, mbCancel, mbYesToAll]); |
||
| 447 | if Result = mrYesToAll then |
||
| 448 | begin |
||
| 449 | Worker.AnswerAll := Worker.AnswerAll + [zaaYesOvrwrt]; |
||
| 450 | Result := idOk; |
||
| 451 | end; |
||
| 452 | end |
||
| 453 | else |
||
| 454 | Result := idOk; |
||
| 455 | end; |
||
| 456 | |||
| 457 | // Src should not be open but not enforced |
||
| 458 | procedure TZMWorkFile.AssignFrom(Src: TZMWorkFile); |
||
| 459 | begin |
||
| 460 | if (Src <> Self) and (Src <> nil) then |
||
| 461 | begin |
||
| 462 | fDiskBuffer := nil; |
||
| 463 | fBufferPosition := -1; |
||
| 464 | Move(Src.fSavedFileInfo, fSavedFileInfo, SizeOf(fSavedFileInfo)); |
||
| 465 | fAllowedSize := Src.fAllowedSize; |
||
| 466 | fBytesRead := Src.fBytesRead; |
||
| 467 | fBytesWritten := Src.fBytesWritten; |
||
| 468 | fDiskNr := Src.fDiskNr; |
||
| 469 | fFile_Size := Src.fFile_Size; |
||
| 470 | fFileName := Src.fFileName; |
||
| 471 | fHandle := -1; // don't acquire handle |
||
| 472 | fInfo := Src.fInfo; |
||
| 473 | // fIsMultiDisk := Src.fIsMultiDisk; |
||
| 474 | fIsOpen := False; |
||
| 475 | fIsTemp := Src.fIsTemp; |
||
| 476 | fLastWrite := Src.fLastWrite; |
||
| 477 | fNumbering := Src.fNumbering; |
||
| 478 | fOpenMode := Src.fOpenMode; |
||
| 479 | fRealFileName := Src.fRealFileName; |
||
| 480 | fReqFileName := Src.FReqFileName; |
||
| 481 | fShowProgress := Src.fShowProgress; |
||
| 482 | fSig := Src.fSig; |
||
| 483 | fStampDate := Src.fStampDate; |
||
| 484 | fTotalDisks := Src.fTotalDisks; |
||
| 485 | fWorkDrive.AssignFrom(Src.WorkDrive); |
||
| 486 | FZipDiskAction := Src.FZipDiskAction; |
||
| 487 | FZipDiskStatus := Src.FZipDiskStatus; |
||
| 488 | end; |
||
| 489 | end; |
||
| 490 | |||
| 491 | procedure TZMWorkFile.BeforeDestruction; |
||
| 492 | begin |
||
| 493 | File_Close; |
||
| 494 | if IsTemp and FileExists(fRealFileName) then |
||
| 495 | begin |
||
| 496 | if Boss.Verbosity >= zvTrace then |
||
| 497 | Diag('Trace: Deleting ' + fRealFileName); |
||
| 498 | SysUtils.DeleteFile(fFileName); |
||
| 499 | end; |
||
| 500 | FreeAndNil(fWorkDrive); |
||
| 501 | fDiskBuffer := nil; // ++ discard contents |
||
| 502 | WBuf := nil; |
||
| 503 | inherited; |
||
| 504 | end; |
||
| 505 | |||
| 506 | // uses 'real' number |
||
| 507 | function TZMWorkFile.ChangeNumberedName(const FName: String; NewNbr: Cardinal; |
||
| 508 | Remove: boolean): string; |
||
| 509 | var |
||
| 510 | ext: string; |
||
| 511 | StripLen: Integer; |
||
| 512 | begin |
||
| 513 | if DiskNr > 999 then |
||
| 514 | raise EZipMaster.CreateResDisp(DS_TooManyParts, True); |
||
| 515 | ext := ExtractFileExt(FName); |
||
| 516 | StripLen := 0; |
||
| 517 | if Remove then |
||
| 518 | StripLen := 3; |
||
| 519 | Result := Copy(FName, 1, Length(FName) - Length(ext) - StripLen) |
||
| 520 | + Copy(IntToStr(1000 + NewNbr), 2, 3) + ext; |
||
| 521 | end; |
||
| 522 | |||
| 523 | procedure TZMWorkFile.CheckForDisk(writing, UnformOk: Boolean); |
||
| 524 | var |
||
| 525 | OnGetNextDisktmp: TZMGetNextDiskEvent; |
||
| 526 | AbortAction: Boolean; |
||
| 527 | MsgFlag: Integer; |
||
| 528 | MsgStr: String; |
||
| 529 | Res: Integer; |
||
| 530 | SizeOfDisk: Int64; |
||
| 531 | totDisks: Integer; |
||
| 532 | begin |
||
| 533 | if TotalDisks <> 1 then // check |
||
| 534 | IsMultiPart := True; |
||
| 535 | if WorkDrive.DriveIsFixed then |
||
| 536 | begin |
||
| 537 | // If it is a fixed disk we don't want a new one. |
||
| 538 | NewDisk := false; |
||
| 539 | Boss.CheckCancel; |
||
| 540 | exit; |
||
| 541 | end; |
||
| 542 | Boss.KeepAlive; // just ProcessMessages |
||
| 543 | // First check if we want a new one or if there is a disk (still) present. |
||
| 544 | while (NewDisk or (not WorkDrive.HasMedia(UnformOk))) do |
||
| 545 | begin |
||
| 546 | if Boss.Unattended then |
||
| 547 | raise EZipMaster.CreateResDisp(DS_NoUnattSpan, True); |
||
| 548 | |||
| 549 | MsgFlag := zmtWarning + DHC_SpanNxtW; // or error? |
||
| 550 | if DiskNr < 0 then // want last disk |
||
| 551 | begin |
||
| 552 | MsgStr := Boss.ZipLoadStr(DS_InsertDisk); |
||
| 553 | MsgFlag := zmtError + DHC_SpanNxtR; |
||
| 554 | end |
||
| 555 | else if writing then |
||
| 556 | begin |
||
| 557 | // This is an estimate, we can't know if every future disk has the same space available and |
||
| 558 | // if there is no disk present we can't determine the size unless it's set by MaxVolumeSize. |
||
| 559 | SizeOfDisk := WorkDrive.VolumeSize - KeepFreeOnAllDisks; |
||
| 560 | if (MaxVolumeSize <> 0) and (MaxVolumeSize < WorkDrive.VolumeSize) then |
||
| 561 | SizeOfDisk := MaxVolumeSize; |
||
| 562 | |||
| 563 | TotalDisks := DiskNr + 1; |
||
| 564 | if TotalDisks > MAX_PARTS then |
||
| 565 | raise EZipMaster.CreateResDisp(DS_TooManyParts, True); |
||
| 566 | if SizeOfDisk > 0 then |
||
| 567 | begin |
||
| 568 | totDisks := Trunc((File_Size + 4 + KeepFreeOnDisk1) / SizeOfDisk); |
||
| 569 | if TotalDisks < totDisks then |
||
| 570 | TotalDisks := totDisks; |
||
| 571 | MsgStr := Boss.ZipFmtLoadStr |
||
| 572 | (DS_InsertVolume, [DiskNr + 1, TotalDisks]); |
||
| 573 | end |
||
| 574 | else |
||
| 575 | MsgStr := Boss.ZipFmtLoadStr(DS_InsertAVolume, [DiskNr + 1]); |
||
| 576 | end |
||
| 577 | else |
||
| 578 | begin // reading - want specific disk |
||
| 579 | if TotalDisks = 0 then |
||
| 580 | MsgStr := Boss.ZipFmtLoadStr(DS_InsertAVolume, [DiskNr + 1]) |
||
| 581 | else |
||
| 582 | MsgStr := Boss.ZipFmtLoadStr(DS_InsertVolume, [DiskNr + 1, TotalDisks]); |
||
| 583 | end; |
||
| 584 | |||
| 585 | MsgStr := MsgStr + Boss.ZipFmtLoadStr(DS_InDrive, [WorkDrive.DriveStr]); |
||
| 586 | OnGetNextDisktmp := Worker.Master.OnGetNextDisk; |
||
| 587 | if Assigned(OnGetNextDisktmp) then |
||
| 588 | begin |
||
| 589 | AbortAction := false; |
||
| 590 | OnGetNextDisktmp(Boss.Master, DiskNr + 1, TotalDisks, Copy |
||
| 591 | (WorkDrive.DriveStr, 1, 1), AbortAction); |
||
| 592 | if AbortAction then |
||
| 593 | Res := idAbort |
||
| 594 | else |
||
| 595 | Res := idOk; |
||
| 596 | end |
||
| 597 | else |
||
| 598 | Res := Boss.ZipMessageDlgEx('', MsgStr, MsgFlag, mbOkCancel); |
||
| 599 | |||
| 600 | // Check if user pressed Cancel or memory is running out. |
||
| 601 | if Res = 0 then |
||
| 602 | raise EZipMaster.CreateResDisp(DS_NoMem, True); |
||
| 603 | if Res <> idOk then |
||
| 604 | begin |
||
| 605 | Boss.Cancel := GE_Abort; |
||
| 606 | info := info or zfi_Cancelled; |
||
| 607 | raise EZipMaster.CreateResDisp(DS_Canceled, false); |
||
| 608 | end; |
||
| 609 | NewDisk := false; |
||
| 610 | Boss.KeepAlive; |
||
| 611 | end; |
||
| 612 | end; |
||
| 613 | |||
| 614 | function TZMWorkFile.CheckRead(var Buffer; Len: Integer): Boolean; |
||
| 615 | begin |
||
| 616 | if Len < 0 then |
||
| 617 | Len := -Len; |
||
| 618 | Result := Read(Buffer, Len) = Len; |
||
| 619 | end; |
||
| 620 | |||
| 621 | procedure TZMWorkFile.CheckRead(var Buffer; Len, ErrId: Integer); |
||
| 622 | begin |
||
| 623 | if Len < 0 then |
||
| 624 | Len := -Len; |
||
| 625 | if not CheckRead(Buffer, Len) then |
||
| 626 | begin |
||
| 627 | if ErrId = 0 then |
||
| 628 | ErrId := DS_ReadError; |
||
| 629 | raise EZipMaster.CreateResDisp(ErrId, True); |
||
| 630 | end; |
||
| 631 | end; |
||
| 632 | |||
| 633 | function TZMWorkFile.CheckReads(var Buffer; const Lens: array of Integer) |
||
| 634 | : Boolean; |
||
| 635 | var |
||
| 636 | c: Integer; |
||
| 637 | i: Integer; |
||
| 638 | begin |
||
| 639 | c := 0; |
||
| 640 | for i := Low(Lens) to High(Lens) do |
||
| 641 | c := c + Lens[i]; |
||
| 642 | Result := Reads(Buffer, Lens) = c; |
||
| 643 | end; |
||
| 644 | |||
| 645 | procedure TZMWorkFile.CheckReads(var Buffer; const Lens: array of Integer; |
||
| 646 | ErrId: Integer); |
||
| 647 | begin |
||
| 648 | if not CheckReads(Buffer, Lens) then |
||
| 649 | begin |
||
| 650 | if ErrId = 0 then |
||
| 651 | ErrId := DS_ReadError; |
||
| 652 | raise EZipMaster.CreateResDisp(ErrId, True); |
||
| 653 | end; |
||
| 654 | end; |
||
| 655 | |||
| 656 | function TZMWorkFile.CheckSeek(offset: Int64; from, ErrId: Integer): Int64; |
||
| 657 | begin |
||
| 658 | Result := Seek(offset, from); |
||
| 659 | if Result < 0 then |
||
| 660 | begin |
||
| 661 | if ErrId = 0 then |
||
| 662 | raise EZipMaster.CreateResDisp(DS_SeekError, True); |
||
| 663 | if ErrId = -1 then |
||
| 664 | ErrId := DS_FailedSeek; |
||
| 665 | raise EZipMaster.CreateResDisp(ErrId, True); |
||
| 666 | end; |
||
| 667 | end; |
||
| 668 | |||
| 669 | function TZMWorkFile.CheckWrite(const Buffer; Len: Integer): Boolean; |
||
| 670 | begin |
||
| 671 | if Len < 0 then |
||
| 672 | Len := -Len; |
||
| 673 | Result := Write(Buffer, Len) = Len; |
||
| 674 | end; |
||
| 675 | |||
| 676 | procedure TZMWorkFile.CheckWrite(const Buffer; Len, ErrId: Integer); |
||
| 677 | begin |
||
| 678 | if not CheckWrite(Buffer, Len) then |
||
| 679 | begin |
||
| 680 | if ErrId = 0 then |
||
| 681 | ErrId := DS_WriteError; |
||
| 682 | raise EZipMaster.CreateResDisp(ErrId, True); |
||
| 683 | end; |
||
| 684 | end; |
||
| 685 | |||
| 686 | function TZMWorkFile.CheckWrites(const Buffer; const Lens: array of Integer) |
||
| 687 | : Boolean; |
||
| 688 | var |
||
| 689 | c: Integer; |
||
| 690 | i: Integer; |
||
| 691 | begin |
||
| 692 | c := 0; |
||
| 693 | for i := Low(Lens) to High(Lens) do |
||
| 694 | c := c + Lens[i]; |
||
| 695 | Result := Writes(Buffer, Lens) = c; |
||
| 696 | end; |
||
| 697 | |||
| 698 | // must read from current part |
||
| 699 | procedure TZMWorkFile.CheckWrites(const Buffer; const Lens: array of Integer; |
||
| 700 | ErrId: Integer); |
||
| 701 | begin |
||
| 702 | if not CheckWrites(Buffer, Lens) then |
||
| 703 | begin |
||
| 704 | if ErrId = 0 then |
||
| 705 | ErrId := DS_WriteError; |
||
| 706 | raise EZipMaster.CreateResDisp(ErrId, True); |
||
| 707 | end; |
||
| 708 | end; |
||
| 709 | |||
| 710 | procedure TZMWorkFile.ClearFileInformation; |
||
| 711 | begin |
||
| 712 | ZeroMemory(@fSavedFileInfo, sizeof(_BY_HANDLE_FILE_INFORMATION)); |
||
| 713 | end; |
||
| 714 | |||
| 715 | procedure TZMWorkFile.ClearFloppy(const dir: String); |
||
| 716 | var |
||
| 717 | Fname: String; |
||
| 718 | SRec: TSearchRec; |
||
| 719 | begin |
||
| 720 | if FindFirst(dir + WILD_ALL, faAnyFile, SRec) = 0 then |
||
| 721 | repeat |
||
| 722 | Fname := dir + SRec.Name; |
||
| 723 | if ((SRec.Attr and faDirectory) <> 0) and (SRec.Name <> DIR_THIS) and |
||
| 724 | (SRec.Name <> DIR_PARENT) then |
||
| 725 | begin |
||
| 726 | Fname := Fname + PathDelim; |
||
| 727 | ClearFloppy(Fname); |
||
| 728 | if Boss.Verbosity >= zvTrace then |
||
| 729 | Boss.ReportMsg(TM_Erasing, [Fname]) |
||
| 730 | else |
||
| 731 | Boss.KeepAlive; |
||
| 732 | // allow time for OS to delete last file |
||
| 733 | RemoveDir(Fname); |
||
| 734 | end |
||
| 735 | else |
||
| 736 | begin |
||
| 737 | if Boss.Verbosity >= zvTrace then |
||
| 738 | Boss.ReportMsg(TM_Deleting, [Fname]) |
||
| 739 | else |
||
| 740 | Boss.KeepAlive; |
||
| 741 | SysUtils.DeleteFile(Fname); |
||
| 742 | end; |
||
| 743 | until FindNext(SRec) <> 0; |
||
| 744 | SysUtils.FindClose(SRec); |
||
| 745 | end; |
||
| 746 | |||
| 747 | function TZMWorkFile.CopyFrom(Source: TZMWorkFile; Len: Int64): Int64; |
||
| 748 | var |
||
| 749 | BufSize: Cardinal; |
||
| 750 | SizeR: Integer; |
||
| 751 | ToRead: Integer; |
||
| 752 | wb: pByte; |
||
| 753 | begin |
||
| 754 | BufSize := 10 * 1024; // constant is somewhere |
||
| 755 | wb := WBuffer(BufSize); |
||
| 756 | Result := 0; |
||
| 757 | |||
| 758 | while Len > 0 do |
||
| 759 | begin |
||
| 760 | ToRead := BufSize; |
||
| 761 | if Len < BufSize then |
||
| 762 | ToRead := Len; |
||
| 763 | SizeR := Source.Read(wb^, ToRead); |
||
| 764 | if SizeR <> ToRead then |
||
| 765 | begin |
||
| 766 | if SizeR < 0 then |
||
| 767 | Result := SizeR |
||
| 768 | else |
||
| 769 | Result := -DS_ReadError; |
||
| 770 | exit; |
||
| 771 | end; |
||
| 772 | if SizeR > 0 then |
||
| 773 | begin |
||
| 774 | ToRead := Write(wb^, SizeR); |
||
| 775 | if SizeR <> ToRead then |
||
| 776 | begin |
||
| 777 | if ToRead < 0 then |
||
| 778 | Result := ToRead |
||
| 779 | else |
||
| 780 | Result := -DS_WriteError; |
||
| 781 | exit; |
||
| 782 | end; |
||
| 783 | Len := Len - SizeR; |
||
| 784 | Result := Result + SizeR; |
||
| 785 | ProgReport(zacProgress, PR_Copying, Source.FileName, SizeR); |
||
| 786 | end; |
||
| 787 | end; |
||
| 788 | end; |
||
| 789 | |||
| 790 | function TZMWorkFile.Copy_File(Source: TZMWorkFile): Integer; |
||
| 791 | var |
||
| 792 | fsize: Int64; |
||
| 793 | r: Int64; |
||
| 794 | begin |
||
| 795 | try |
||
| 796 | if not Source.IsOpen then |
||
| 797 | Source.File_Open(fmOpenRead); |
||
| 798 | Result := 0; |
||
| 799 | fsize := Source.Seek(0, 2); |
||
| 800 | Source.Seek(0, 0); |
||
| 801 | ProgReport(zacXItem, PR_Copying, Source.FileName, fsize); |
||
| 802 | r := self.CopyFrom(Source, fsize); |
||
| 803 | if r < 0 then |
||
| 804 | Result := Integer(r); |
||
| 805 | except |
||
| 806 | Result := -9; // general error |
||
| 807 | end; |
||
| 808 | end; |
||
| 809 | |||
| 810 | function TZMWorkFile.CreateMVFileNameEx(const FileName: String; |
||
| 811 | StripPartNbr, Compat: Boolean): String; |
||
| 812 | var |
||
| 813 | ext: String; |
||
| 814 | begin // changes FileName into multi volume FileName |
||
| 815 | if Compat then |
||
| 816 | begin |
||
| 817 | if DiskNr <> (TotalDisks - 1) then |
||
| 818 | begin |
||
| 819 | if DiskNr < 9 then |
||
| 820 | ext := '.z0' |
||
| 821 | else |
||
| 822 | ext := '.z'; |
||
| 823 | ext := ext + IntToStr(succ(DiskNr)); |
||
| 824 | end |
||
| 825 | else |
||
| 826 | ext := EXT_ZIP; |
||
| 827 | Result := ChangeFileExt(FileName, ext); |
||
| 828 | end |
||
| 829 | else |
||
| 830 | Result := ChangeNumberedName(FileName, DiskNr + 1, StripPartNbr); |
||
| 831 | end; |
||
| 832 | |||
| 833 | procedure TZMWorkFile.Diag(const msg: String); |
||
| 834 | begin |
||
| 835 | if Boss.Verbosity >= zvTrace then |
||
| 836 | Boss.ReportMessage(0, msg); |
||
| 837 | end; |
||
| 838 | |||
| 839 | function TZMWorkFile.DoFileWrite(const Buffer; Len: Integer): Integer; |
||
| 840 | begin |
||
| 841 | Result := FileWrite(fHandle, Buffer, Len); |
||
| 842 | end; |
||
| 843 | |||
| 844 | // return true if end of segment |
||
| 845 | // WARNING - repositions to end of segment |
||
| 846 | function TZMWorkFile.EOS: Boolean; |
||
| 847 | begin |
||
| 848 | Result := FileSeek64(Handle, 0, soFromCurrent) = FileSeek64 |
||
| 849 | (Handle, 0, soFromEnd); |
||
| 850 | end; |
||
| 851 | |||
| 852 | function TZMWorkFile.FileDate: Cardinal; |
||
| 853 | begin |
||
| 854 | Result := FileGetDate(fHandle); |
||
| 855 | end; |
||
| 856 | |||
| 857 | procedure TZMWorkFile.File_Close; |
||
| 858 | begin |
||
| 859 | if fDiskBuffer <> nil then |
||
| 860 | FlushDiskBuffer; |
||
| 861 | File_Close_F; |
||
| 862 | // inherited; |
||
| 863 | end; |
||
| 864 | |||
| 865 | procedure TZMWorkFile.File_Close_F; |
||
| 866 | var |
||
| 867 | th: Integer; |
||
| 868 | begin |
||
| 869 | if fHandle <> -1 then |
||
| 870 | begin |
||
| 871 | th := fHandle; |
||
| 872 | fHandle := -1; |
||
| 873 | // if open for writing set date |
||
| 874 | if (StampDate <> 0) and |
||
| 875 | ((OpenMode and (SysUtils.fmOpenReadWrite or SysUtils.fmOpenWrite)) <> 0) then |
||
| 876 | begin |
||
| 877 | FileSetDate(th, StampDate); |
||
| 878 | if Boss.Verbosity >= zvTrace then |
||
| 879 | Diag('Trace: Set file Date ' + fRealFileName + ' to ' + DateTimeToStr |
||
| 880 | (FileDateToLocalDateTime(StampDate))); |
||
| 881 | end; |
||
| 882 | FileClose(th); |
||
| 883 | if Boss.Verbosity >= zvTrace then |
||
| 884 | Diag('Trace: Closed ' + fRealFileName); |
||
| 885 | end; |
||
| 886 | fIsOpen := false; |
||
| 887 | end; |
||
| 888 | |||
| 889 | function TZMWorkFile.File_Create(const theName: String): Boolean; |
||
| 890 | var |
||
| 891 | n: String; |
||
| 892 | begin |
||
| 893 | File_Close; |
||
| 894 | Result := false; |
||
| 895 | if theName <> '' then |
||
| 896 | begin |
||
| 897 | if FileName = '' then |
||
| 898 | FileName := theName; |
||
| 899 | n := theName; |
||
| 900 | end |
||
| 901 | else |
||
| 902 | n := FileName; |
||
| 903 | if n = '' then |
||
| 904 | exit; |
||
| 905 | if Boss.Verbosity >= zvTrace then |
||
| 906 | Diag('Trace: Creating ' + n); |
||
| 907 | fRealFileName := n; |
||
| 908 | fHandle := FileCreate(n); |
||
| 909 | if fHandle <> -1 then |
||
| 910 | TZMCore(Worker).AddCleanupFile(n); |
||
| 911 | fBytesWritten := 0; |
||
| 912 | fBytesRead := 0; |
||
| 913 | Result := fHandle <> -1; |
||
| 914 | fIsOpen := Result; |
||
| 915 | fOpenMode := SysUtils.fmOpenWrite; |
||
| 916 | end; |
||
| 917 | |||
| 918 | function TZMWorkFile.File_CreateTemp(const Prefix, Where: String): Boolean; |
||
| 919 | var |
||
| 920 | Buf: String; |
||
| 921 | Len: DWORD; |
||
| 922 | tmpDir: String; |
||
| 923 | begin |
||
| 924 | Result := false; |
||
| 925 | if Length(Boss.TempDir) = 0 then |
||
| 926 | begin |
||
| 927 | if Length(Where) <> 0 then |
||
| 928 | begin |
||
| 929 | tmpDir := ExtractFilePath(Where); |
||
| 930 | tmpDir := ExpandFileName(tmpDir); |
||
| 931 | end; |
||
| 932 | // if Length(Worker.TempDir) = 0 then // Get the system temp dir |
||
| 933 | if Length(tmpDir) = 0 then // Get the system temp dir |
||
| 934 | begin |
||
| 935 | // 1. The path specified by the TMP environment variable. |
||
| 936 | // 2. The path specified by the TEMP environment variable, if TMP is not defined. |
||
| 937 | // 3. The current directory, if both TMP and TEMP are not defined. |
||
| 938 | Len := GetTempPath(0, PChar(tmpDir)); |
||
| 939 | SetLength(tmpDir, Len); |
||
| 940 | GetTempPath(Len, PChar(tmpDir)); |
||
| 941 | end; |
||
| 942 | end |
||
| 943 | else // Use Temp dir provided by ZipMaster |
||
| 944 | begin |
||
| 945 | tmpDir := Boss.TempDir; |
||
| 946 | end; |
||
| 947 | tmpDir := DelimitPath(tmpDir, True); |
||
| 948 | SetLength(Buf, MAX_PATH + 12); |
||
| 949 | if GetTempFileName(PChar(tmpDir), PChar(Prefix), 0, PChar(Buf)) <> 0 then |
||
| 950 | begin |
||
| 951 | FileName := PChar(Buf); |
||
| 952 | IsTemp := True; // delete when finished |
||
| 953 | if Boss.Verbosity >= zvTrace then |
||
| 954 | Diag('Trace: Created temporary ' + FileName); |
||
| 955 | fRealFileName := FileName; |
||
| 956 | fBytesWritten := 0; |
||
| 957 | fBytesRead := 0; |
||
| 958 | fOpenMode := SysUtils.fmOpenWrite; |
||
| 959 | Result := File_Open(fmOpenWrite); |
||
| 960 | end; |
||
| 961 | end; |
||
| 962 | |||
| 963 | function TZMWorkFile.File_Open(Mode: Cardinal): Boolean; |
||
| 964 | begin |
||
| 965 | File_Close; |
||
| 966 | if Boss.Verbosity >= zvTrace then |
||
| 967 | Diag('Trace: Opening ' + fFileName); |
||
| 968 | fRealFileName := fFileName; |
||
| 969 | fHandle := FileOpen(fFileName, Mode); |
||
| 970 | Result := fHandle <> -1; |
||
| 971 | fIsOpen := Result; |
||
| 972 | fOpenMode := Mode; |
||
| 973 | end; |
||
| 974 | |||
| 975 | function TZMWorkFile.File_Rename(const NewName: string; |
||
| 976 | const Safe: Boolean = false): Boolean; |
||
| 977 | begin |
||
| 978 | if Boss.Verbosity >= zvTrace then |
||
| 979 | Diag('Trace: Rename ' + RealFileName + ' to ' + NewName); |
||
| 980 | IsTemp := false; |
||
| 981 | if IsOpen then |
||
| 982 | File_Close; |
||
| 983 | if FileExists(FileName) then |
||
| 984 | begin |
||
| 985 | if FileExists(NewName) then |
||
| 986 | begin |
||
| 987 | if Boss.Verbosity >= zvTrace then |
||
| 988 | Diag('Trace: Erasing ' + NewName); |
||
| 989 | if (EraseFile(NewName, not Safe) <> 0) and (Boss.Verbosity >= zvTrace) |
||
| 990 | then |
||
| 991 | Diag('Trace: Erase failed ' + NewName); |
||
| 992 | end; |
||
| 993 | end; |
||
| 994 | Result := RenameFile(FileName, NewName); |
||
| 995 | if Result then |
||
| 996 | begin |
||
| 997 | fFileName := NewName; // success |
||
| 998 | fRealFileName := NewName; |
||
| 999 | end; |
||
| 1000 | end; |
||
| 1001 | |||
| 1002 | // rename last part after Write |
||
| 1003 | function TZMWorkFile.FinishWrite: Integer; |
||
| 1004 | var |
||
| 1005 | fn: String; |
||
| 1006 | LastName: String; |
||
| 1007 | MsgStr: String; |
||
| 1008 | Res: Integer; |
||
| 1009 | OnStatusDisk: TZMStatusDiskEvent; |
||
| 1010 | begin |
||
| 1011 | // change extn of last file |
||
| 1012 | LastName := RealFileName; |
||
| 1013 | File_Close; |
||
| 1014 | Result := 0; |
||
| 1015 | |||
| 1016 | if IsMultiPart then |
||
| 1017 | begin |
||
| 1018 | if ((Numbering = znsExt) and not AnsiSameText(ExtractFileExt(LastName), EXT_ZIP)) or |
||
| 1019 | ((Numbering = znsName) and (DiskNr = 0)) then |
||
| 1020 | begin |
||
| 1021 | Result := -1; |
||
| 1022 | fn := FileName; |
||
| 1023 | if (FileExists(fn)) then |
||
| 1024 | begin |
||
| 1025 | MsgStr := Boss.ZipFmtLoadStr(DS_AskDeleteFile, [fn]); |
||
| 1026 | FZipDiskStatus := FZipDiskStatus + [zdsSameFileName]; |
||
| 1027 | Res := idYes; |
||
| 1028 | if not(zaaYesOvrwrt in Worker.AnswerAll) then |
||
| 1029 | begin |
||
| 1030 | OnStatusDisk := Worker.Master.OnStatusDisk; |
||
| 1031 | if Assigned(OnStatusDisk) then // 1.77 |
||
| 1032 | begin |
||
| 1033 | FZipDiskAction := zdaOk; // The default action |
||
| 1034 | OnStatusDisk(Boss.Master, DiskNr, fn, FZipDiskStatus, |
||
| 1035 | FZipDiskAction); |
||
| 1036 | if FZipDiskAction = zdaYesToAll then |
||
| 1037 | begin |
||
| 1038 | Worker.AnswerAll := Worker.AnswerAll + [zaaYesOvrwrt]; |
||
| 1039 | FZipDiskAction := zdaOk; |
||
| 1040 | end; |
||
| 1041 | if FZipDiskAction = zdaOk then |
||
| 1042 | Res := idYes |
||
| 1043 | else |
||
| 1044 | Res := idNo; |
||
| 1045 | end |
||
| 1046 | else |
||
| 1047 | Res := Boss.ZipMessageDlgEx(MsgStr, Boss.ZipLoadStr(FM_Confirm) |
||
| 1048 | , zmtWarning + DHC_WrtSpnDel, [mbYes, mbNo]); |
||
| 1049 | end; |
||
| 1050 | if (Res = 0) then |
||
| 1051 | Boss.ShowZipMessage(DS_NoMem, ''); |
||
| 1052 | if (Res = idNo) then |
||
| 1053 | Boss.ReportMsg(DS_NoRenamePart, [LastName]); |
||
| 1054 | if (Res = idYes) then |
||
| 1055 | SysUtils.DeleteFile(fn); // if it exists delete old one |
||
| 1056 | end; |
||
| 1057 | if FileExists(LastName) then // should be there but ... |
||
| 1058 | begin |
||
| 1059 | RenameFile(LastName, fn); |
||
| 1060 | Result := 0; |
||
| 1061 | if Boss.Verbosity >= zvVerbose then |
||
| 1062 | Boss.Diag(Format('renamed %s to %s', [LastName, fn])); |
||
| 1063 | end; |
||
| 1064 | end; |
||
| 1065 | end; |
||
| 1066 | end; |
||
| 1067 | |||
| 1068 | procedure TZMWorkFile.FlushDiskBuffer; |
||
| 1069 | var |
||
| 1070 | did: Integer; |
||
| 1071 | Len: Integer; |
||
| 1072 | begin |
||
| 1073 | Len := fBufferPosition; |
||
| 1074 | fBufferPosition := -1; // stop retrying on error |
||
| 1075 | if fDiskBuffer <> nil then |
||
| 1076 | begin |
||
| 1077 | Boss.KeepAlive; |
||
| 1078 | Boss.CheckCancel; |
||
| 1079 | if Len > 0 then |
||
| 1080 | begin |
||
| 1081 | repeat |
||
| 1082 | did := DoFileWrite(fDiskBuffer[0], Len); |
||
| 1083 | if did <> Len then |
||
| 1084 | begin |
||
| 1085 | NewFlushDisk; // abort or try again on new disk |
||
| 1086 | end; |
||
| 1087 | until (did = Len); |
||
| 1088 | end; |
||
| 1089 | fDiskBuffer := nil; |
||
| 1090 | end; |
||
| 1091 | end; |
||
| 1092 | |||
| 1093 | function TZMWorkFile.GetConfirmErase: Boolean; |
||
| 1094 | begin |
||
| 1095 | Result := Worker.ConfirmErase; |
||
| 1096 | end; |
||
| 1097 | |||
| 1098 | function TZMWorkFile.GetExists: Boolean; |
||
| 1099 | begin |
||
| 1100 | Result := false; |
||
| 1101 | if FileExists(FileName) then |
||
| 1102 | Result := True; |
||
| 1103 | end; |
||
| 1104 | |||
| 1105 | function TZMWorkFile.GetFileInformation(var FileInfo: |
||
| 1106 | _BY_HANDLE_FILE_INFORMATION): Boolean; |
||
| 1107 | begin |
||
| 1108 | Result := IsOpen; |
||
| 1109 | if Result then |
||
| 1110 | Result := GetFileInformationByHandle(Handle, FileInfo); |
||
| 1111 | if not Result then |
||
| 1112 | ZeroMemory(@FileInfo, sizeof(_BY_HANDLE_FILE_INFORMATION)); |
||
| 1113 | end; |
||
| 1114 | |||
| 1115 | function TZMWorkFile.GetKeepFreeOnAllDisks: Cardinal; |
||
| 1116 | begin |
||
| 1117 | Result := Worker.KeepFreeOnAllDisks; |
||
| 1118 | end; |
||
| 1119 | |||
| 1120 | function TZMWorkFile.GetKeepFreeOnDisk1: Cardinal; |
||
| 1121 | begin |
||
| 1122 | Result := Worker.KeepFreeOnDisk1; |
||
| 1123 | end; |
||
| 1124 | |||
| 1125 | function TZMWorkFile.GetLastWritten: Cardinal; |
||
| 1126 | var |
||
| 1127 | ft: TFileTime; |
||
| 1128 | begin |
||
| 1129 | Result := 0; |
||
| 1130 | if IsOpen and LastWriteTime(ft) then |
||
| 1131 | Result := FileTimeToLocalDOSTime(ft); |
||
| 1132 | end; |
||
| 1133 | |||
| 1134 | function TZMWorkFile.GetMaxVolumeSize: Int64; |
||
| 1135 | begin |
||
| 1136 | Result := Worker.MaxVolumeSize; |
||
| 1137 | end; |
||
| 1138 | |||
| 1139 | function TZMWorkFile.GetMinFreeVolumeSize: Cardinal; |
||
| 1140 | begin |
||
| 1141 | Result := Worker.MinFreeVolumeSize; |
||
| 1142 | end; |
||
| 1143 | |||
| 1144 | procedure TZMWorkFile.GetNewDisk(DiskSeq: Integer; AllowEmpty: Boolean); |
||
| 1145 | begin |
||
| 1146 | File_Close; |
||
| 1147 | // Close the file on the old disk first. |
||
| 1148 | if (TotalDisks <> 1) or (DiskSeq <> 0) then |
||
| 1149 | IsMultiPart := True; |
||
| 1150 | DiskNr := DiskSeq; |
||
| 1151 | while True do |
||
| 1152 | begin |
||
| 1153 | repeat |
||
| 1154 | NewDisk := True; |
||
| 1155 | File_Close; |
||
| 1156 | CheckForDisk(false, spTryFormat in SpanOptions); |
||
| 1157 | if AllowEmpty and WorkDrive.HasMedia(spTryFormat in SpanOptions) then |
||
| 1158 | begin |
||
| 1159 | if WorkDrive.VolumeSpace = -1 then |
||
| 1160 | exit; // unformatted |
||
| 1161 | if WorkDrive.VolumeSpace = WorkDrive.VolumeSize then |
||
| 1162 | exit; // empty |
||
| 1163 | end; |
||
| 1164 | until IsRightDisk; |
||
| 1165 | |||
| 1166 | if Boss.Verbosity >= zvVerbose then |
||
| 1167 | Boss.Diag(Boss.ZipFmtLoadStr(TM_GetNewDisk, [FileName])); |
||
| 1168 | if File_Open(fmShareDenyWrite or fmOpenRead) then |
||
| 1169 | break; // found |
||
| 1170 | if WorkDrive.DriveIsFixed then |
||
| 1171 | raise EZipMaster.CreateResDisp(DS_NoInFile, True) |
||
| 1172 | else |
||
| 1173 | Boss.ShowZipMessage(DS_NoInFile, ''); |
||
| 1174 | end; |
||
| 1175 | end; |
||
| 1176 | |||
| 1177 | function TZMWorkFile.GetPosition: Int64; |
||
| 1178 | begin |
||
| 1179 | if fDiskBuffer <> nil then |
||
| 1180 | Result := fBufferPosition |
||
| 1181 | else |
||
| 1182 | Result := GetPosition_F; |
||
| 1183 | end; |
||
| 1184 | |||
| 1185 | function TZMWorkFile.GetPosition_F: Int64; |
||
| 1186 | begin |
||
| 1187 | Result := FileSeek64(fHandle, 0, soFromCurrent); // from current |
||
| 1188 | end; |
||
| 1189 | |||
| 1190 | function TZMWorkFile.GetSpanOptions: TZMSpanOpts; |
||
| 1191 | begin |
||
| 1192 | Result := Worker.SpanOptions; |
||
| 1193 | end; |
||
| 1194 | |||
| 1195 | function TZMWorkFile.HasSpanSig(const FName: String): boolean; |
||
| 1196 | var |
||
| 1197 | fs: TFileStream; |
||
| 1198 | Sg: Cardinal; |
||
| 1199 | begin |
||
| 1200 | Result := False; |
||
| 1201 | if FileExists(FName) then |
||
| 1202 | begin |
||
| 1203 | fs := TFileStream.Create(FName, fmOpenRead); |
||
| 1204 | try |
||
| 1205 | if (fs.Size > (sizeof(TZipLocalHeader) + sizeof(Sg))) and |
||
| 1206 | (fs.Read(Sg, sizeof(Sg)) = sizeof(Sg)) then |
||
| 1207 | Result := (Sg = ExtLocalSig) and (fs.Read(Sg, sizeof(Sg)) = sizeof(Sg)) and |
||
| 1208 | (Sg = LocalFileHeaderSig); |
||
| 1209 | finally |
||
| 1210 | fs.Free; |
||
| 1211 | end; |
||
| 1212 | end; |
||
| 1213 | end; |
||
| 1214 | |||
| 1215 | function TZMWorkFile.IsRightDisk: Boolean; |
||
| 1216 | var |
||
| 1217 | fn: String; |
||
| 1218 | VName: string; |
||
| 1219 | begin |
||
| 1220 | Result := True; |
||
| 1221 | if (Numbering < znsName) and (not WorkDrive.DriveIsFixed) then |
||
| 1222 | begin |
||
| 1223 | VName := WorkDrive.DiskName; |
||
| 1224 | Boss.Diag('Checking disk ' + VName + ' need ' + VolName(DiskNr)); |
||
| 1225 | if (AnsiSameText(VName, VolName(DiskNr)) or AnsiSameText(VName, OldVolName(DiskNr))) and |
||
| 1226 | FileExists(FileName) then |
||
| 1227 | begin |
||
| 1228 | Numbering := znsVolume; |
||
| 1229 | Boss.Diag('found volume ' + VName); |
||
| 1230 | exit; |
||
| 1231 | end; |
||
| 1232 | end; |
||
| 1233 | fn := FileName; |
||
| 1234 | if Numbering = znsNone then // not known yet |
||
| 1235 | begin |
||
| 1236 | FileName := CreateMVFileNameEx(FileName, True, True); |
||
| 1237 | // make compat name |
||
| 1238 | if FileExists(FileName) then |
||
| 1239 | begin |
||
| 1240 | Numbering := znsExt; |
||
| 1241 | exit; |
||
| 1242 | end; |
||
| 1243 | FileName := fn; |
||
| 1244 | FileName := CreateMVFileNameEx(FileName, True, false); |
||
| 1245 | // make numbered name |
||
| 1246 | if FileExists(FileName) then |
||
| 1247 | begin |
||
| 1248 | Numbering := znsName; |
||
| 1249 | exit; |
||
| 1250 | end; |
||
| 1251 | if WorkDrive.DriveIsFixed then |
||
| 1252 | exit; // always true - only needed name |
||
| 1253 | FileName := fn; // restore |
||
| 1254 | Result := false; |
||
| 1255 | exit; |
||
| 1256 | end; |
||
| 1257 | // numbering scheme already known |
||
| 1258 | if Numbering = znsVolume then |
||
| 1259 | begin |
||
| 1260 | Result := false; |
||
| 1261 | exit; |
||
| 1262 | end; |
||
| 1263 | FileName := CreateMVFileNameEx(FileName, True, Numbering = znsExt); |
||
| 1264 | // fixed drive always true only needed new filename |
||
| 1265 | if (not WorkDrive.DriveIsFixed) and (not FileExists(FileName)) then |
||
| 1266 | begin |
||
| 1267 | FileName := fn; // restore |
||
| 1268 | Result := false; |
||
| 1269 | end; |
||
| 1270 | end; |
||
| 1271 | |||
| 1272 | function TZMWorkFile.LastWriteTime(var last_write: TFileTime): Boolean; |
||
| 1273 | var |
||
| 1274 | BHFInfo: TByHandleFileInformation; |
||
| 1275 | begin |
||
| 1276 | Result := false; |
||
| 1277 | last_write.dwLowDateTime := 0; |
||
| 1278 | last_write.dwHighDateTime := 0; |
||
| 1279 | if IsOpen then |
||
| 1280 | begin |
||
| 1281 | Result := GetFileInformationByHandle(fHandle, BHFInfo); |
||
| 1282 | if Result then |
||
| 1283 | last_write := BHFInfo.ftLastWriteTime; |
||
| 1284 | end; |
||
| 1285 | end; |
||
| 1286 | |||
| 1287 | function TZMWorkFile.MapNumbering(Opts: TZMSpanOpts): TZMSpanOpts; |
||
| 1288 | var |
||
| 1289 | spans: TZMSpanOpts; |
||
| 1290 | begin |
||
| 1291 | Result := Opts; |
||
| 1292 | if Numbering <> znsNone then |
||
| 1293 | begin |
||
| 1294 | // map numbering type only if known |
||
| 1295 | spans := Opts - [spCompatName] + [spNoVolumeName]; |
||
| 1296 | case Numbering of |
||
| 1297 | znsVolume: |
||
| 1298 | spans := spans - [spNoVolumeName]; |
||
| 1299 | znsExt: |
||
| 1300 | spans := spans + [spCompatName]; |
||
| 1301 | end; |
||
| 1302 | Result := spans; |
||
| 1303 | end; |
||
| 1304 | end; |
||
| 1305 | |||
| 1306 | procedure TZMWorkFile.NewFlushDisk; |
||
| 1307 | begin |
||
| 1308 | // need to allow another disk, check size, open file, name disk etc |
||
| 1309 | raise EZipMaster.CreateResDisp(DS_WriteError, True); |
||
| 1310 | end; |
||
| 1311 | |||
| 1312 | function TZMWorkFile.NewSegment: Boolean; // true to 'continue' |
||
| 1313 | var |
||
| 1314 | DiskFile: String; |
||
| 1315 | DiskSeq: Integer; |
||
| 1316 | MsgQ: String; |
||
| 1317 | Res: Integer; |
||
| 1318 | SegName: String; |
||
| 1319 | OnGetNextDisk: TZMGetNextDiskEvent; |
||
| 1320 | OnStatusDisk: TZMStatusDiskEvent; |
||
| 1321 | begin |
||
| 1322 | Result := false; |
||
| 1323 | // If we write on a fixed disk the filename must change. |
||
| 1324 | // We will get something like: FileNamexxx.zip where xxx is 001,002 etc. |
||
| 1325 | // if CompatNames are used we get FileName.zxx where xx is 01, 02 etc.. last .zip |
||
| 1326 | if Numbering = znsNone then |
||
| 1327 | begin |
||
| 1328 | if spCompatName in SpanOptions then |
||
| 1329 | Numbering := znsExt |
||
| 1330 | else if WorkDrive.DriveIsFixed or (spNoVolumeName in SpanOptions) then |
||
| 1331 | Numbering := znsName |
||
| 1332 | else |
||
| 1333 | Numbering := znsVolume; |
||
| 1334 | end; |
||
| 1335 | DiskFile := FileName; |
||
| 1336 | if Numbering <> znsVolume then |
||
| 1337 | DiskFile := CreateMVFileNameEx(DiskFile, false, Numbering = znsExt); |
||
| 1338 | CheckForDisk(True, spWipeFiles in SpanOptions); |
||
| 1339 | |||
| 1340 | OnGetNextDisk := Worker.Master.OnGetNextDisk; |
||
| 1341 | // Allow clearing of removeable media even if no volume names |
||
| 1342 | if (not WorkDrive.DriveIsFixed) and (spWipeFiles in SpanOptions) and |
||
| 1343 | ((FZipDiskAction = zdaErase) or not Assigned(OnGetNextDisk)) then |
||
| 1344 | begin |
||
| 1345 | // Do we want a format first? |
||
| 1346 | if Numbering = znsVolume then |
||
| 1347 | SegName := VolName(DiskNr) |
||
| 1348 | // default name |
||
| 1349 | else |
||
| 1350 | SegName := SZipSet + IntToStr(succ(DiskNr)); |
||
| 1351 | // Ok=6 NoFormat=-3, Cancel=-2, Error=-1 |
||
| 1352 | case ZipFormat(SegName) of |
||
| 1353 | // Start formating and wait until BeforeClose... |
||
| 1354 | - 1: |
||
| 1355 | raise EZipMaster.CreateResDisp(DS_Canceled, True); |
||
| 1356 | -2: |
||
| 1357 | raise EZipMaster.CreateResDisp(DS_Canceled, false); |
||
| 1358 | end; |
||
| 1359 | end; |
||
| 1360 | if WorkDrive.DriveIsFixed or (Numbering <> znsVolume) then |
||
| 1361 | DiskSeq := DiskNr + 1 |
||
| 1362 | else |
||
| 1363 | begin |
||
| 1364 | DiskSeq := StrToIntDef(Copy(WorkDrive.DiskName, 9, 3), 1); |
||
| 1365 | if DiskSeq < 0 then |
||
| 1366 | DiskSeq := 1; |
||
| 1367 | end; |
||
| 1368 | FZipDiskStatus := []; |
||
| 1369 | Res := AskOverwriteSegment(DiskFile, DiskSeq); |
||
| 1370 | if (Res = idYes) and (WorkDrive.DriveIsFixed) and |
||
| 1371 | (spCompatName in SpanOptions) and FileExists(ReqFileName) then |
||
| 1372 | begin |
||
| 1373 | Res := AskOverwriteSegment(ReqFileName, DiskSeq); |
||
| 1374 | if (Res = idYes) then |
||
| 1375 | EraseFile(ReqFileName, Worker.HowToDelete = htdFinal); |
||
| 1376 | end; |
||
| 1377 | if (Res = 0) or (Res = idCancel) or ((Res = idNo) and WorkDrive.DriveIsFixed) |
||
| 1378 | then |
||
| 1379 | raise EZipMaster.CreateResDisp(DS_Canceled, false); |
||
| 1380 | |||
| 1381 | if Res = idNo then |
||
| 1382 | begin // we will try again... |
||
| 1383 | FDiskWritten := 0; |
||
| 1384 | NewDisk := True; |
||
| 1385 | Result := True; |
||
| 1386 | exit; |
||
| 1387 | end; |
||
| 1388 | // Create the output file. |
||
| 1389 | if not File_Create(DiskFile) then |
||
| 1390 | begin // change proposed by Pedro Araujo |
||
| 1391 | MsgQ := Boss.ZipLoadStr(DS_NoOutFile); |
||
| 1392 | Res := Boss.ZipMessageDlgEx('', MsgQ, zmtError + DHC_SpanNoOut, |
||
| 1393 | [mbRetry, mbCancel]); |
||
| 1394 | if Res = 0 then |
||
| 1395 | raise EZipMaster.CreateResDisp(DS_NoMem, True); |
||
| 1396 | if Res <> idRetry then |
||
| 1397 | raise EZipMaster.CreateResDisp(DS_Canceled, false); |
||
| 1398 | FDiskWritten := 0; |
||
| 1399 | NewDisk := True; |
||
| 1400 | Result := True; |
||
| 1401 | exit; |
||
| 1402 | end; |
||
| 1403 | |||
| 1404 | // Get the free space on this disk, correct later if neccessary. |
||
| 1405 | WorkDrive.VolumeRefresh; |
||
| 1406 | |||
| 1407 | // Set the maximum number of bytes that can be written to this disk(file). |
||
| 1408 | // Reserve space on/in all the disk/file. |
||
| 1409 | if (DiskNr = 0) and (KeepFreeOnDisk1 > 0) or (KeepFreeOnAllDisks > 0) then |
||
| 1410 | begin |
||
| 1411 | if (KeepFreeOnDisk1 mod WorkDrive.VolumeSecSize) <> 0 then |
||
| 1412 | KeepFreeOnDisk1 := succ(KeepFreeOnDisk1 div WorkDrive.VolumeSecSize) |
||
| 1413 | * WorkDrive.VolumeSecSize; |
||
| 1414 | if (KeepFreeOnAllDisks mod WorkDrive.VolumeSecSize) <> 0 then |
||
| 1415 | KeepFreeOnAllDisks := succ |
||
| 1416 | (KeepFreeOnAllDisks div WorkDrive.VolumeSecSize) |
||
| 1417 | * WorkDrive.VolumeSecSize; |
||
| 1418 | end; |
||
| 1419 | AllowedSize := WorkDrive.VolumeSize - KeepFreeOnAllDisks; |
||
| 1420 | if (MaxVolumeSize > 0) and (MaxVolumeSize < AllowedSize) then |
||
| 1421 | AllowedSize := MaxVolumeSize; |
||
| 1422 | // Reserve space on/in the first disk(file). |
||
| 1423 | if DiskNr = 0 then |
||
| 1424 | AllowedSize := AllowedSize - KeepFreeOnDisk1; |
||
| 1425 | |||
| 1426 | // Do we still have enough free space on this disk. |
||
| 1427 | if AllowedSize < MinFreeVolumeSize then // No, too bad... |
||
| 1428 | begin |
||
| 1429 | OnStatusDisk := Worker.Master.OnStatusDisk; |
||
| 1430 | File_Close; |
||
| 1431 | SysUtils.DeleteFile(DiskFile); |
||
| 1432 | if Assigned(OnStatusDisk) then // v1.60L |
||
| 1433 | begin |
||
| 1434 | if Numbering <> znsVolume then |
||
| 1435 | DiskSeq := DiskNr + 1 |
||
| 1436 | else |
||
| 1437 | begin |
||
| 1438 | DiskSeq := StrToIntDef(Copy(WorkDrive.DiskName, 9, 3), 1); |
||
| 1439 | if DiskSeq < 0 then |
||
| 1440 | DiskSeq := 1; |
||
| 1441 | end; |
||
| 1442 | FZipDiskAction := zdaOk; // The default action |
||
| 1443 | FZipDiskStatus := [zdsNotEnoughSpace]; |
||
| 1444 | OnStatusDisk(Boss.Master, DiskSeq, DiskFile, FZipDiskStatus, |
||
| 1445 | FZipDiskAction); |
||
| 1446 | if FZipDiskAction = zdaCancel then |
||
| 1447 | Res := idCancel |
||
| 1448 | else |
||
| 1449 | Res := idRetry; |
||
| 1450 | end |
||
| 1451 | else |
||
| 1452 | begin |
||
| 1453 | MsgQ := Boss.ZipLoadStr(DS_NoDiskSpace); |
||
| 1454 | Res := Boss.ZipMessageDlgEx('', MsgQ, zmtError + DHC_SpanSpace, |
||
| 1455 | [mbRetry, mbCancel]); |
||
| 1456 | end; |
||
| 1457 | if Res = 0 then |
||
| 1458 | raise EZipMaster.CreateResDisp(DS_NoMem, True); |
||
| 1459 | if Res <> idRetry then |
||
| 1460 | raise EZipMaster.CreateResDisp(DS_Canceled, false); |
||
| 1461 | FDiskWritten := 0; |
||
| 1462 | |||
| 1463 | NewDisk := True; |
||
| 1464 | // If all this was on a HD then this wouldn't be useful but... |
||
| 1465 | Result := True; |
||
| 1466 | end |
||
| 1467 | else |
||
| 1468 | begin |
||
| 1469 | // ok. it fits and the file is open |
||
| 1470 | // Set the volume label of this disk if it is not a fixed one. |
||
| 1471 | if not(WorkDrive.DriveIsFixed or (Numbering <> znsVolume)) then |
||
| 1472 | begin |
||
| 1473 | if not WorkDrive.RenameDisk(VolName(DiskNr)) then |
||
| 1474 | raise EZipMaster.CreateResDisp(DS_NoVolume, True); |
||
| 1475 | end; |
||
| 1476 | // if it is a floppy buffer it |
||
| 1477 | if (not WorkDrive.DriveIsFixed) and (AllowedSize <= MaxDiskBufferSize) then |
||
| 1478 | begin |
||
| 1479 | SetLength(fDiskBuffer, AllowedSize); |
||
| 1480 | fBufferPosition := 0; |
||
| 1481 | end; |
||
| 1482 | end; |
||
| 1483 | end; |
||
| 1484 | |||
| 1485 | function TZMWorkFile.OldVolName(Part: Integer): String; |
||
| 1486 | begin |
||
| 1487 | Result := SPKBACK + ' ' + Copy(IntToStr(1001 + Part), 2, 3); |
||
| 1488 | end; |
||
| 1489 | |||
| 1490 | procedure TZMWorkFile.ProgReport(prog: TActionCodes; xprog: Integer; const |
||
| 1491 | Name: String; size: Int64); |
||
| 1492 | var |
||
| 1493 | actn: TActionCodes; |
||
| 1494 | msg: String; |
||
| 1495 | begin |
||
| 1496 | actn := prog; |
||
| 1497 | if (Name = '') and (xprog > PR_Progress) then |
||
| 1498 | msg := Boss.ZipLoadStr(xprog) |
||
| 1499 | else |
||
| 1500 | msg := Name; |
||
| 1501 | case ShowProgress of |
||
| 1502 | zspNone: |
||
| 1503 | case prog of |
||
| 1504 | zacItem: |
||
| 1505 | actn := zacNone; |
||
| 1506 | zacProgress: |
||
| 1507 | actn := zacTick; |
||
| 1508 | zacEndOfBatch: |
||
| 1509 | actn := zacTick; |
||
| 1510 | zacCount: |
||
| 1511 | actn := zacNone; |
||
| 1512 | zacSize: |
||
| 1513 | actn := zacTick; |
||
| 1514 | zacXItem: |
||
| 1515 | actn := zacNone; |
||
| 1516 | zacXProgress: |
||
| 1517 | actn := zacTick; |
||
| 1518 | end; |
||
| 1519 | zspExtra: |
||
| 1520 | case prog of |
||
| 1521 | zacItem: |
||
| 1522 | actn := zacNone; // do nothing |
||
| 1523 | zacProgress: |
||
| 1524 | actn := zacXProgress; |
||
| 1525 | zacCount: |
||
| 1526 | actn := zacNone; // do nothing |
||
| 1527 | zacSize: |
||
| 1528 | actn := zacXItem; |
||
| 1529 | end; |
||
| 1530 | end; |
||
| 1531 | if actn <> zacNone then |
||
| 1532 | Boss.ReportProgress(actn, xprog, msg, size); |
||
| 1533 | end; |
||
| 1534 | |||
| 1535 | function TZMWorkFile.Read(var Buffer; Len: Integer): Integer; |
||
| 1536 | var |
||
| 1537 | bp: PAnsiChar; |
||
| 1538 | SizeR: Integer; |
||
| 1539 | ToRead: Integer; |
||
| 1540 | begin |
||
| 1541 | try |
||
| 1542 | if IsMultiPart then |
||
| 1543 | begin |
||
| 1544 | ToRead := Len; |
||
| 1545 | if Len < 0 then |
||
| 1546 | ToRead := -Len; |
||
| 1547 | bp := @Buffer; |
||
| 1548 | Result := 0; |
||
| 1549 | while ToRead > 0 do |
||
| 1550 | begin |
||
| 1551 | SizeR := ReadFromFile(bp^, ToRead); |
||
| 1552 | if SizeR <> ToRead then |
||
| 1553 | begin |
||
| 1554 | // Check if we are at the end of a input disk. |
||
| 1555 | if SizeR < 0 then |
||
| 1556 | begin |
||
| 1557 | Result := SizeR; |
||
| 1558 | exit; |
||
| 1559 | end; |
||
| 1560 | // if error or (len <0 and read some) or (end segment) |
||
| 1561 | if ((Len < 0) and (SizeR <> 0)) or not EOS then |
||
| 1562 | begin |
||
| 1563 | Result := -DS_ReadError; |
||
| 1564 | exit; |
||
| 1565 | end; |
||
| 1566 | // It seems we are at the end, so get a next disk. |
||
| 1567 | GetNewDisk(DiskNr + 1, false); |
||
| 1568 | end; |
||
| 1569 | if SizeR > 0 then |
||
| 1570 | begin |
||
| 1571 | Inc(bp, SizeR); |
||
| 1572 | ToRead := ToRead - SizeR; |
||
| 1573 | Result := Result + SizeR; |
||
| 1574 | end; |
||
| 1575 | end; |
||
| 1576 | end |
||
| 1577 | else |
||
| 1578 | Result := Read_F(Buffer, Len); |
||
| 1579 | except |
||
| 1580 | on E: EZipMaster do |
||
| 1581 | Result := -E.ResId; |
||
| 1582 | on E: Exception do |
||
| 1583 | Result := -DS_ReadError; |
||
| 1584 | end; |
||
| 1585 | end; |
||
| 1586 | |||
| 1587 | function TZMWorkFile.ReadFromFile(var Buffer; Len: Integer): Integer; |
||
| 1588 | begin |
||
| 1589 | if Len < 0 then |
||
| 1590 | Len := -Len; |
||
| 1591 | Result := FileRead(fHandle, Buffer, Len); |
||
| 1592 | if Result > 0 then |
||
| 1593 | BytesRead := BytesRead + Len |
||
| 1594 | else if Result < 0 then |
||
| 1595 | begin |
||
| 1596 | Result := -DS_ReadError; |
||
| 1597 | end; |
||
| 1598 | end; |
||
| 1599 | |||
| 1600 | function TZMWorkFile.Reads(var Buffer; const Lens: array of Integer): Integer; |
||
| 1601 | var |
||
| 1602 | i: Integer; |
||
| 1603 | pb: PAnsiChar; |
||
| 1604 | r: Integer; |
||
| 1605 | begin |
||
| 1606 | Result := 0; |
||
| 1607 | if IsMultiPart then |
||
| 1608 | begin |
||
| 1609 | pb := @Buffer; |
||
| 1610 | for i := Low(Lens) to High(Lens) do |
||
| 1611 | begin |
||
| 1612 | r := Read(pb^, -Lens[i]); |
||
| 1613 | if r < 0 then |
||
| 1614 | begin |
||
| 1615 | Result := r; |
||
| 1616 | break; |
||
| 1617 | end; |
||
| 1618 | Result := Result + r; |
||
| 1619 | Inc(pb, r); |
||
| 1620 | end; |
||
| 1621 | end |
||
| 1622 | else |
||
| 1623 | Result := Reads_F(Buffer, Lens); |
||
| 1624 | end; |
||
| 1625 | |||
| 1626 | function TZMWorkFile.Reads_F(var Buffer; const Lens: array of Integer): Integer; |
||
| 1627 | var |
||
| 1628 | c: Integer; |
||
| 1629 | i: Integer; |
||
| 1630 | begin |
||
| 1631 | c := 0; |
||
| 1632 | for i := Low(Lens) to High(Lens) do |
||
| 1633 | c := c + Lens[i]; |
||
| 1634 | Result := ReadFromFile(Buffer, c); |
||
| 1635 | end; |
||
| 1636 | |||
| 1637 | function TZMWorkFile.ReadTo(strm: TStream; Count: Integer): Integer; |
||
| 1638 | const |
||
| 1639 | bsize = 20 * 1024; |
||
| 1640 | var |
||
| 1641 | done: Integer; |
||
| 1642 | sz: Integer; |
||
| 1643 | wbufr: array of Byte; |
||
| 1644 | begin |
||
| 1645 | Result := 0; |
||
| 1646 | SetLength(wbufr, bsize); |
||
| 1647 | while Count > 0 do |
||
| 1648 | begin |
||
| 1649 | sz := bsize; |
||
| 1650 | if sz > Count then |
||
| 1651 | sz := Count; |
||
| 1652 | done := Read(wbufr[0], sz); |
||
| 1653 | if done > 0 then |
||
| 1654 | begin |
||
| 1655 | if strm.write(wbufr[0], done) <> done then |
||
| 1656 | done := -DS_WriteError; |
||
| 1657 | end; |
||
| 1658 | if done <> sz then |
||
| 1659 | begin |
||
| 1660 | Result := -DS_FileError; |
||
| 1661 | if done < 0 then |
||
| 1662 | Result := done; |
||
| 1663 | break; |
||
| 1664 | end; |
||
| 1665 | Count := Count - sz; |
||
| 1666 | Result := Result + sz; |
||
| 1667 | end; |
||
| 1668 | end; |
||
| 1669 | |||
| 1670 | function TZMWorkFile.Read_F(var Buffer; Len: Integer): Integer; |
||
| 1671 | begin |
||
| 1672 | Result := ReadFromFile(Buffer, Len); |
||
| 1673 | end; |
||
| 1674 | |||
| 1675 | function TZMWorkFile.SaveFileInformation: Boolean; |
||
| 1676 | begin |
||
| 1677 | Result := GetFileInformation(fSavedFileInfo); |
||
| 1678 | end; |
||
| 1679 | |||
| 1680 | function TZMWorkFile.Seek(offset: Int64; from: Integer): Int64; |
||
| 1681 | begin |
||
| 1682 | Result := FileSeek64(fHandle, offset, from); |
||
| 1683 | end; |
||
| 1684 | |||
| 1685 | function TZMWorkFile.SeekDisk(Nr: Integer): Integer; |
||
| 1686 | begin |
||
| 1687 | if DiskNr <> Nr then |
||
| 1688 | GetNewDisk(Nr, false); |
||
| 1689 | Result := Nr; |
||
| 1690 | end; |
||
| 1691 | |||
| 1692 | procedure TZMWorkFile.SetBoss(const Value: TZMCore); |
||
| 1693 | begin |
||
| 1694 | if FBoss <> Value then |
||
| 1695 | begin |
||
| 1696 | if Value = nil then |
||
| 1697 | FBoss := fWorker |
||
| 1698 | else |
||
| 1699 | FBoss := Value; |
||
| 1700 | end; |
||
| 1701 | end; |
||
| 1702 | |||
| 1703 | function TZMWorkFile.SetEndOfFile: Boolean; |
||
| 1704 | begin |
||
| 1705 | if IsOpen then |
||
| 1706 | Result := Windows.SetEndOfFile(Handle) |
||
| 1707 | else |
||
| 1708 | Result := false; |
||
| 1709 | end; |
||
| 1710 | |||
| 1711 | procedure TZMWorkFile.SetFileName(const Value: String); |
||
| 1712 | begin |
||
| 1713 | if fFileName <> Value then |
||
| 1714 | begin |
||
| 1715 | if IsOpen then |
||
| 1716 | File_Close; |
||
| 1717 | fFileName := Value; |
||
| 1718 | WorkDrive.DriveStr := Value; |
||
| 1719 | end; |
||
| 1720 | end; |
||
| 1721 | |||
| 1722 | // dangerous - assumes file on same drive |
||
| 1723 | procedure TZMWorkFile.SetHandle(const Value: Integer); |
||
| 1724 | begin |
||
| 1725 | File_Close; |
||
| 1726 | fHandle := Value; |
||
| 1727 | fIsOpen := fHandle <> -1; |
||
| 1728 | end; |
||
| 1729 | |||
| 1730 | procedure TZMWorkFile.SetKeepFreeOnAllDisks(const Value: Cardinal); |
||
| 1731 | begin |
||
| 1732 | Worker.KeepFreeOnAllDisks := Value; |
||
| 1733 | end; |
||
| 1734 | |||
| 1735 | procedure TZMWorkFile.SetKeepFreeOnDisk1(const Value: Cardinal); |
||
| 1736 | begin |
||
| 1737 | Worker.KeepFreeOnDisk1 := Value; |
||
| 1738 | end; |
||
| 1739 | |||
| 1740 | procedure TZMWorkFile.SetMaxVolumeSize(const Value: Int64); |
||
| 1741 | begin |
||
| 1742 | Worker.MaxVolumeSize := Value; |
||
| 1743 | end; |
||
| 1744 | |||
| 1745 | procedure TZMWorkFile.SetMinFreeVolumeSize(const Value: Cardinal); |
||
| 1746 | begin |
||
| 1747 | Worker.MinFreeVolumeSize := Value; |
||
| 1748 | end; |
||
| 1749 | |||
| 1750 | procedure TZMWorkFile.SetPosition(const Value: Int64); |
||
| 1751 | begin |
||
| 1752 | Seek(Value, 0); |
||
| 1753 | end; |
||
| 1754 | |||
| 1755 | procedure TZMWorkFile.SetSpanOptions(const Value: TZMSpanOpts); |
||
| 1756 | begin |
||
| 1757 | Worker.SpanOptions := Value; |
||
| 1758 | end; |
||
| 1759 | |||
| 1760 | procedure TZMWorkFile.SetWorkDrive(const Value: TZMWorkDrive); |
||
| 1761 | begin |
||
| 1762 | if fWorkDrive <> Value then |
||
| 1763 | begin |
||
| 1764 | fWorkDrive := Value; |
||
| 1765 | end; |
||
| 1766 | end; |
||
| 1767 | |||
| 1768 | function TZMWorkFile.VerifyFileInformation: Boolean; |
||
| 1769 | var |
||
| 1770 | info: _BY_HANDLE_FILE_INFORMATION;//TWIN32FindData; |
||
| 1771 | begin |
||
| 1772 | GetFileInformation(info); |
||
| 1773 | Result := (info.ftLastWriteTime.dwLowDateTime = fSavedFileInfo.ftLastWriteTime.dwLowDateTime) and |
||
| 1774 | (info.ftLastWriteTime.dwHighDateTime = fSavedFileInfo.ftLastWriteTime.dwHighDateTime) and |
||
| 1775 | (info.ftCreationTime.dwLowDateTime = fSavedFileInfo.ftCreationTime.dwLowDateTime) and |
||
| 1776 | (info.ftCreationTime.dwHighDateTime = fSavedFileInfo.ftCreationTime.dwHighDateTime) and |
||
| 1777 | (info.nFileSizeLow = fSavedFileInfo.nFileSizeLow) and |
||
| 1778 | (info.nFileSizeHigh = fSavedFileInfo.nFileSizeHigh) and |
||
| 1779 | (info.nFileIndexLow = fSavedFileInfo.nFileIndexLow) and |
||
| 1780 | (info.nFileIndexHigh = fSavedFileInfo.nFileIndexHigh) and |
||
| 1781 | (info.dwFileAttributes = fSavedFileInfo.dwFileAttributes) and |
||
| 1782 | (info.dwVolumeSerialNumber = fSavedFileInfo.dwVolumeSerialNumber); |
||
| 1783 | end; |
||
| 1784 | |||
| 1785 | function TZMWorkFile.VolName(Part: Integer): String; |
||
| 1786 | begin |
||
| 1787 | Result := SPKBACK + Copy(IntToStr(1001 + Part), 2, 3); |
||
| 1788 | end; |
||
| 1789 | |||
| 1790 | function TZMWorkFile.WBuffer(size: Integer): pByte; |
||
| 1791 | begin |
||
| 1792 | if size < 1 then |
||
| 1793 | WBuf := nil |
||
| 1794 | else if HIGH(WBuf) < size then |
||
| 1795 | begin |
||
| 1796 | size := size or $3FF; |
||
| 1797 | SetLength(WBuf, size + 1); // reallocate |
||
| 1798 | end; |
||
| 1799 | Result := @WBuf[0]; |
||
| 1800 | end; |
||
| 1801 | |||
| 1802 | function TZMWorkFile.Write(const Buffer; Len: Integer): Integer; |
||
| 1803 | begin |
||
| 1804 | if IsMultiPart then |
||
| 1805 | Result := WriteSplit(Buffer, Len) |
||
| 1806 | else |
||
| 1807 | Result := Write_F(Buffer, Len); |
||
| 1808 | end; |
||
| 1809 | |||
| 1810 | function TZMWorkFile.WriteFrom(strm: TStream; Count: Integer): Int64; |
||
| 1811 | const |
||
| 1812 | bsize = 20 * 1024; |
||
| 1813 | var |
||
| 1814 | done: Integer; |
||
| 1815 | maxsize: Integer; |
||
| 1816 | sz: Integer; |
||
| 1817 | wbufr: array of Byte; |
||
| 1818 | begin |
||
| 1819 | Result := 0; |
||
| 1820 | SetLength(wbufr, bsize); |
||
| 1821 | maxsize := strm.size - strm.Position; |
||
| 1822 | if Count > maxsize then |
||
| 1823 | Count := maxsize; |
||
| 1824 | while Count > 0 do |
||
| 1825 | begin |
||
| 1826 | sz := bsize; |
||
| 1827 | if sz > Count then |
||
| 1828 | sz := Count; |
||
| 1829 | done := strm.Read(wbufr[0], sz); |
||
| 1830 | if done > 0 then |
||
| 1831 | done := Write(wbufr[0], done); // split ok? |
||
| 1832 | if done <> sz then |
||
| 1833 | begin |
||
| 1834 | Result := -DS_FileError; |
||
| 1835 | if done < 0 then |
||
| 1836 | Result := done; |
||
| 1837 | break; |
||
| 1838 | end; |
||
| 1839 | Count := Count - sz; |
||
| 1840 | Result := Result + sz; |
||
| 1841 | end; |
||
| 1842 | end; |
||
| 1843 | |||
| 1844 | function TZMWorkFile.Writes(const Buffer; const Lens: array of Integer) |
||
| 1845 | : Integer; |
||
| 1846 | var |
||
| 1847 | c: Integer; |
||
| 1848 | i: Integer; |
||
| 1849 | begin |
||
| 1850 | if IsMultiPart then |
||
| 1851 | begin |
||
| 1852 | c := 0; |
||
| 1853 | for i := Low(Lens) to High(Lens) do |
||
| 1854 | c := c + Lens[i]; |
||
| 1855 | Result := Write(Buffer, -c); |
||
| 1856 | end |
||
| 1857 | else |
||
| 1858 | Result := Writes_F(Buffer, Lens); |
||
| 1859 | end; |
||
| 1860 | |||
| 1861 | function TZMWorkFile.WriteSplit(const Buffer; ToWrite: Integer): Integer; |
||
| 1862 | var |
||
| 1863 | Buf: PAnsiChar; |
||
| 1864 | Len: Cardinal; |
||
| 1865 | MaxLen: Cardinal; |
||
| 1866 | MinSize: Cardinal; |
||
| 1867 | MustFit: Boolean; |
||
| 1868 | Res: Integer; |
||
| 1869 | begin { WriteSplit } |
||
| 1870 | try |
||
| 1871 | Result := 0; |
||
| 1872 | MustFit := false; |
||
| 1873 | if ToWrite >= 0 then |
||
| 1874 | begin |
||
| 1875 | Len := ToWrite; |
||
| 1876 | MinSize := 0; |
||
| 1877 | end |
||
| 1878 | else |
||
| 1879 | begin |
||
| 1880 | Len := -ToWrite; |
||
| 1881 | MustFit := (Len and MustFitFlag) <> 0; |
||
| 1882 | Len := Len and MustFitMask; |
||
| 1883 | MinSize := Len; |
||
| 1884 | end; |
||
| 1885 | Buf := @Buffer; |
||
| 1886 | Boss.KeepAlive; |
||
| 1887 | Boss.CheckCancel; |
||
| 1888 | |||
| 1889 | // Keep writing until error or Buffer is empty. |
||
| 1890 | while True do |
||
| 1891 | begin |
||
| 1892 | // Check if we have an output file already opened, if not: create one, |
||
| 1893 | // do checks, gather info. |
||
| 1894 | if (not IsOpen) then |
||
| 1895 | begin |
||
| 1896 | NewDisk := DiskNr <> 0; // allow first disk in drive |
||
| 1897 | if NewSegment then |
||
| 1898 | begin |
||
| 1899 | NewDisk := True; |
||
| 1900 | continue; |
||
| 1901 | end; |
||
| 1902 | end; |
||
| 1903 | |||
| 1904 | // Check if we have at least MinSize available on this disk, |
||
| 1905 | // headers are not allowed to cross disk boundaries. ( if zero than don't care.) |
||
| 1906 | if (MinSize <> 0) and (MinSize > AllowedSize) then |
||
| 1907 | begin // close this part |
||
| 1908 | // all parts must be same stamp |
||
| 1909 | if StampDate = 0 then |
||
| 1910 | StampDate := LastWritten; |
||
| 1911 | File_Close; |
||
| 1912 | FDiskWritten := 0; |
||
| 1913 | NewDisk := True; |
||
| 1914 | DiskNr := DiskNr + 1; // RCV270299 |
||
| 1915 | if not MustFit then |
||
| 1916 | continue; |
||
| 1917 | Result := MustFitError; |
||
| 1918 | break; |
||
| 1919 | end; |
||
| 1920 | |||
| 1921 | // Don't try to write more bytes than allowed on this disk. |
||
| 1922 | MaxLen := HIGH(Integer); |
||
| 1923 | if AllowedSize < MaxLen then |
||
| 1924 | MaxLen := Integer(AllowedSize); |
||
| 1925 | if Len < MaxLen then |
||
| 1926 | MaxLen := Len; |
||
| 1927 | if fDiskBuffer <> nil then |
||
| 1928 | begin |
||
| 1929 | Move(Buf^, fDiskBuffer[fBufferPosition], MaxLen); |
||
| 1930 | Res := MaxLen; |
||
| 1931 | Inc(fBufferPosition, MaxLen); |
||
| 1932 | end |
||
| 1933 | else |
||
| 1934 | Res := WriteToFile(Buf^, MaxLen); |
||
| 1935 | if Res < 0 then |
||
| 1936 | raise EZipMaster.CreateResDisp(DS_NoWrite, True); |
||
| 1937 | // A write error (disk removed?) |
||
| 1938 | |||
| 1939 | Inc(FDiskWritten, Res); |
||
| 1940 | Inc(Result, Res); |
||
| 1941 | AllowedSize := AllowedSize - MaxLen; |
||
| 1942 | if MaxLen = Len then |
||
| 1943 | break; |
||
| 1944 | |||
| 1945 | // We still have some data left, we need a new disk. |
||
| 1946 | if StampDate = 0 then |
||
| 1947 | StampDate := LastWritten; |
||
| 1948 | File_Close; |
||
| 1949 | AllowedSize := 0; |
||
| 1950 | FDiskWritten := 0; |
||
| 1951 | DiskNr := DiskNr + 1; |
||
| 1952 | NewDisk := True; |
||
| 1953 | Inc(Buf, MaxLen); |
||
| 1954 | Dec(Len, MaxLen); |
||
| 1955 | end; { while(True) } |
||
| 1956 | except |
||
| 1957 | on E: EZipMaster do |
||
| 1958 | begin |
||
| 1959 | Result := -E.ResId; |
||
| 1960 | end; |
||
| 1961 | on E: Exception do |
||
| 1962 | begin |
||
| 1963 | Result := -DS_UnknownError; |
||
| 1964 | end; |
||
| 1965 | end; |
||
| 1966 | end; |
||
| 1967 | |||
| 1968 | function TZMWorkFile.Writes_F(const Buffer; const Lens: array of Integer) |
||
| 1969 | : Integer; |
||
| 1970 | var |
||
| 1971 | c: Integer; |
||
| 1972 | i: Integer; |
||
| 1973 | begin |
||
| 1974 | c := 0; |
||
| 1975 | for i := Low(Lens) to High(Lens) do |
||
| 1976 | c := c + Lens[i]; |
||
| 1977 | Result := WriteToFile(Buffer, c); |
||
| 1978 | end; |
||
| 1979 | |||
| 1980 | function TZMWorkFile.WriteToFile(const Buffer; Len: Integer): Integer; |
||
| 1981 | begin |
||
| 1982 | if Len < 0 then |
||
| 1983 | Len := (-Len) and MustFitMask; |
||
| 1984 | Result := DoFileWrite(Buffer, Len); |
||
| 1985 | if Result > 0 then |
||
| 1986 | BytesWritten := BytesWritten + Len; |
||
| 1987 | end; |
||
| 1988 | |||
| 1989 | function TZMWorkFile.Write_F(const Buffer; Len: Integer): Integer; |
||
| 1990 | begin |
||
| 1991 | Result := WriteToFile(Buffer, Len); |
||
| 1992 | end; |
||
| 1993 | |||
| 1994 | function TZMWorkFile.ZipFormat(const NewName: String): Integer; |
||
| 1995 | var |
||
| 1996 | msg: String; |
||
| 1997 | Res: Integer; |
||
| 1998 | Vol: String; |
||
| 1999 | begin |
||
| 2000 | if NewName <> '' then |
||
| 2001 | Vol := NewName |
||
| 2002 | else |
||
| 2003 | Vol := WorkDrive.DiskName; |
||
| 2004 | if Length(Vol) > 11 then |
||
| 2005 | Vol := Copy(Vol, 1, 11); |
||
| 2006 | Result := -3; |
||
| 2007 | if WorkDrive.DriveIsFloppy then |
||
| 2008 | begin |
||
| 2009 | if (spTryFormat in SpanOptions) then |
||
| 2010 | Result := FormatFloppy(Application.Handle, WorkDrive.DriveStr); |
||
| 2011 | if Result = -3 then |
||
| 2012 | begin |
||
| 2013 | if ConfirmErase then |
||
| 2014 | begin |
||
| 2015 | msg := Boss.ZipFmtLoadStr(FM_Erase, [WorkDrive.DriveStr]); |
||
| 2016 | Res := Boss.ZipMessageDlgEx(Boss.ZipLoadStr(FM_Confirm), msg, |
||
| 2017 | zmtWarning + DHC_FormErase, [mbYes, mbNo]); |
||
| 2018 | if Res <> idYes then |
||
| 2019 | begin |
||
| 2020 | Result := -3; // no was -2; // cancel |
||
| 2021 | exit; |
||
| 2022 | end; |
||
| 2023 | end; |
||
| 2024 | ClearFloppy(WorkDrive.DriveStr); |
||
| 2025 | Result := 0; |
||
| 2026 | end; |
||
| 2027 | WorkDrive.HasMedia(false); |
||
| 2028 | if (Result = 0) and (Numbering = znsVolume) then |
||
| 2029 | WorkDrive.RenameDisk(Vol); |
||
| 2030 | end; |
||
| 2031 | end; |
||
| 2032 | |||
| 2033 | end. |