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1226 lines
37 KiB
ObjectPascal
1226 lines
37 KiB
ObjectPascal
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by Florian Klaempfl
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member of the Free Pascal development team
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Sysutils unit for EMX
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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unit sysutils;
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interface
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{$MODE objfpc}
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{ force ansistrings }
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{$H+}
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uses
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Dos;
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{$DEFINE HAS_SLEEP}
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{ Include platform independent interface part }
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{$i sysutilh.inc}
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implementation
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uses
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sysconst;
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{$DEFINE FPC_FEXPAND_UNC} (* UNC paths are supported *)
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{$DEFINE FPC_FEXPAND_DRIVES} (* Full paths begin with drive specification *)
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{ Include platform independent implementation part }
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{$i sysutils.inc}
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{****************************************************************************
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System (imported) calls
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****************************************************************************}
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(* "uses DosCalls" could not be used here due to type *)
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(* conflicts, so needed parts had to be redefined here). *)
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type
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TFileStatus = object
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end;
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PFileStatus = ^TFileStatus;
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TFileStatus3 = object (TFileStatus)
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DateCreation, {Date of file creation.}
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TimeCreation, {Time of file creation.}
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DateLastAccess, {Date of last access to file.}
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TimeLastAccess, {Time of last access to file.}
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DateLastWrite, {Date of last modification of file.}
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TimeLastWrite:word; {Time of last modification of file.}
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FileSize, {Size of file.}
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FileAlloc:cardinal; {Amount of space the file really
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occupies on disk.}
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AttrFile:cardinal; {Attributes of file.}
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end;
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PFileStatus3=^TFileStatus3;
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TFileStatus4=object(TFileStatus3)
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cbList:cardinal; {Length of entire EA set.}
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end;
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PFileStatus4=^TFileStatus4;
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TFileFindBuf3=object(TFileStatus)
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NextEntryOffset: cardinal; {Offset of next entry}
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DateCreation, {Date of file creation.}
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TimeCreation, {Time of file creation.}
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DateLastAccess, {Date of last access to file.}
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TimeLastAccess, {Time of last access to file.}
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DateLastWrite, {Date of last modification of file.}
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TimeLastWrite:word; {Time of last modification of file.}
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FileSize, {Size of file.}
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FileAlloc:cardinal; {Amount of space the file really
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occupies on disk.}
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AttrFile:cardinal; {Attributes of file.}
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Name:shortstring; {Also possible to use as ASCIIZ.
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The byte following the last string
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character is always zero.}
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end;
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PFileFindBuf3=^TFileFindBuf3;
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TFileFindBuf4=object(TFileStatus)
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NextEntryOffset: cardinal; {Offset of next entry}
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DateCreation, {Date of file creation.}
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TimeCreation, {Time of file creation.}
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DateLastAccess, {Date of last access to file.}
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TimeLastAccess, {Time of last access to file.}
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DateLastWrite, {Date of last modification of file.}
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TimeLastWrite:word; {Time of last modification of file.}
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FileSize, {Size of file.}
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FileAlloc:cardinal; {Amount of space the file really
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occupies on disk.}
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AttrFile:cardinal; {Attributes of file.}
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cbList:longint; {Size of the file's extended attributes.}
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Name:shortstring; {Also possible to use as ASCIIZ.
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The byte following the last string
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character is always zero.}
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end;
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PFileFindBuf4=^TFileFindBuf4;
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TFSInfo = record
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case word of
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1:
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(File_Sys_ID,
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Sectors_Per_Cluster,
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Total_Clusters,
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Free_Clusters: cardinal;
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Bytes_Per_Sector: word);
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2: {For date/time description,
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see file searching realted
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routines.}
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(Label_Date, {Date when volume label was created.}
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Label_Time: word; {Time when volume label was created.}
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VolumeLabel: ShortString); {Volume label. Can also be used
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as ASCIIZ, because the byte
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following the last character of
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the string is always zero.}
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end;
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PFSInfo = ^TFSInfo;
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TCountryCode=record
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Country, {Country to query info about (0=current).}
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CodePage: cardinal; {Code page to query info about (0=current).}
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end;
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PCountryCode=^TCountryCode;
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TTimeFmt = (Clock12, Clock24);
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TCountryInfo=record
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Country, CodePage: cardinal; {Country and codepage requested.}
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case byte of
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0:
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(DateFormat: cardinal; {1=ddmmyy 2=yymmdd 3=mmddyy}
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CurrencyUnit: array [0..4] of char;
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ThousandSeparator: char; {Thousands separator.}
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Zero1: byte; {Always zero.}
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DecimalSeparator: char; {Decimals separator,}
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Zero2: byte;
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DateSeparator: char; {Date separator.}
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Zero3: byte;
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TimeSeparator: char; {Time separator.}
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Zero4: byte;
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CurrencyFormat, {Bit field:
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Bit 0: 0=indicator before value
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1=indicator after value
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Bit 1: 1=insert space after
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indicator.
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Bit 2: 1=Ignore bit 0&1, replace
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decimal separator with
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indicator.}
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DecimalPlace: byte; {Number of decimal places used in
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currency indication.}
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TimeFormat: TTimeFmt; {12/24 hour.}
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Reserve1: array [0..1] of word;
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DataSeparator: char; {Data list separator}
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Zero5: byte;
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Reserve2: array [0..4] of word);
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1:
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(fsDateFmt: cardinal; {1=ddmmyy 2=yymmdd 3=mmddyy}
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szCurrency: array [0..4] of char;
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{null terminated currency symbol}
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szThousandsSeparator: array [0..1] of char;
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{Thousands separator + #0}
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szDecimal: array [0..1] of char;
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{Decimals separator + #0}
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szDateSeparator: array [0..1] of char;
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{Date separator + #0}
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szTimeSeparator: array [0..1] of char;
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{Time separator + #0}
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fsCurrencyFmt, {Bit field:
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Bit 0: 0=indicator before value
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1=indicator after value
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Bit 1: 1=insert space after
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indicator.
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Bit 2: 1=Ignore bit 0&1, replace
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decimal separator with
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indicator}
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cDecimalPlace: byte; {Number of decimal places used in
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currency indication}
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fsTimeFmt: byte; {0=12,1=24 hours}
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abReserved1: array [0..1] of word;
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szDataSeparator: array [0..1] of char;
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{Data list separator + #0}
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abReserved2: array [0..4] of word);
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end;
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PCountryInfo=^TCountryInfo;
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TRequestData=record
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PID, {ID of process that wrote element.}
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Data: cardinal; {Information from process writing the data.}
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end;
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PRequestData=^TRequestData;
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{Queue data structure for synchronously started sessions.}
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TChildInfo = record
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case boolean of
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false:
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(SessionID,
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Return: word); {Return code from the child process.}
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true:
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(usSessionID,
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usReturn: word); {Return code from the child process.}
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end;
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PChildInfo = ^TChildInfo;
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TStartData=record
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{Note: to omit some fields, use a length smaller than SizeOf(TStartData).}
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Length:word; {Length, in bytes, of datastructure
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(24/30/32/50/60).}
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Related:word; {Independent/child session (0/1).}
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FgBg:word; {Foreground/background (0/1).}
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TraceOpt:word; {No trace/trace this/trace all (0/1/2).}
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PgmTitle:PChar; {Program title.}
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PgmName:PChar; {Filename to program.}
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PgmInputs:PChar; {Command parameters (nil allowed).}
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TermQ:PChar; {System queue. (nil allowed).}
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Environment:PChar; {Environment to pass (nil allowed).}
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InheritOpt:word; {Inherit enviroment from shell/
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inherit environment from parent (0/1).}
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SessionType:word; {Auto/full screen/window/presentation
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manager/full screen Dos/windowed Dos
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(0/1/2/3/4/5/6/7).}
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Iconfile:PChar; {Icon file to use (nil allowed).}
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PgmHandle:cardinal; {0 or the program handle.}
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PgmControl:word; {Bitfield describing initial state
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of windowed sessions.}
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InitXPos,InitYPos:word; {Initial top coordinates.}
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InitXSize,InitYSize:word; {Initial size.}
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Reserved:word;
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ObjectBuffer:PChar; {If a module cannot be loaded, its
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name will be returned here.}
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ObjectBuffLen:cardinal; {Size of your buffer.}
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end;
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PStartData=^TStartData;
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const
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ilStandard = 1;
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ilQueryEAsize = 2;
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ilQueryEAs = 3;
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ilQueryFullName = 5;
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quFIFO = 0;
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quLIFO = 1;
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quPriority = 2;
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quNoConvert_Address = 0;
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quConvert_Address = 4;
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{Start the new session independent or as a child.}
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ssf_Related_Independent = 0; {Start new session independent
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of the calling session.}
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ssf_Related_Child = 1; {Start new session as a child
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session to the calling session.}
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{Start the new session in the foreground or in the background.}
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ssf_FgBg_Fore = 0; {Start new session in foreground.}
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ssf_FgBg_Back = 1; {Start new session in background.}
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{Should the program started in the new session
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be executed under conditions for tracing?}
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ssf_TraceOpt_None = 0; {No trace.}
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ssf_TraceOpt_Trace = 1; {Trace with no notification
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of descendants.}
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ssf_TraceOpt_TraceAll = 2; {Trace all descendant sessions.
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A termination queue must be
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supplied and Related must be
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ssf_Related_Child (=1).}
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{Will the new session inherit open file handles
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and environment from the calling process.}
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ssf_InhertOpt_Shell = 0; {Inherit from the shell.}
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ssf_InhertOpt_Parent = 1; {Inherit from the calling process.}
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{Specifies the type of session to start.}
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ssf_Type_Default = 0; {Use program's type.}
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ssf_Type_FullScreen = 1; {OS/2 full screen.}
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ssf_Type_WindowableVIO = 2; {OS/2 window.}
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ssf_Type_PM = 3; {Presentation Manager.}
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ssf_Type_VDM = 4; {DOS full screen.}
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ssf_Type_WindowedVDM = 7; {DOS window.}
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{Additional values for Windows programs}
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Prog_31_StdSeamlessVDM = 15; {Windows 3.1 program in its
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own windowed session.}
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Prog_31_StdSeamlessCommon = 16; {Windows 3.1 program in a
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common windowed session.}
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Prog_31_EnhSeamlessVDM = 17; {Windows 3.1 program in enhanced
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compatibility mode in its own
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windowed session.}
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Prog_31_EnhSeamlessCommon = 18; {Windows 3.1 program in enhanced
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compatibility mode in a common
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windowed session.}
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Prog_31_Enh = 19; {Windows 3.1 program in enhanced
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compatibility mode in a full
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screen session.}
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Prog_31_Std = 20; {Windows 3.1 program in a full
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screen session.}
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{Specifies the initial attributes for a OS/2 window or DOS window session.}
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ssf_Control_Visible = 0; {Window is visible.}
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ssf_Control_Invisible = 1; {Window is invisible.}
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ssf_Control_Maximize = 2; {Window is maximized.}
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ssf_Control_Minimize = 4; {Window is minimized.}
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ssf_Control_NoAutoClose = 8; {Window will not close after
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the program has ended.}
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ssf_Control_SetPos = 32768; {Use InitXPos, InitYPos,
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InitXSize, and InitYSize for
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the size and placement.}
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{This is the correct way to call external assembler procedures.}
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procedure syscall;external name '___SYSCALL';
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function DosSetFileInfo (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus;
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FileStatusLen: cardinal): cardinal; cdecl; external 'DOSCALLS' index 218;
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function DosQueryFSInfo (DiskNum, InfoLevel: cardinal; var Buffer: TFSInfo;
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BufLen: cardinal): cardinal; cdecl; external 'DOSCALLS' index 278;
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function DosQueryFileInfo (Handle: THandle; InfoLevel: cardinal;
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AFileStatus: PFileStatus; FileStatusLen: cardinal): cardinal; cdecl;
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external 'DOSCALLS' index 279;
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function DosScanEnv (Name: PChar; var Value: PChar): cardinal; cdecl;
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external 'DOSCALLS' index 227;
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function DosFindFirst (FileMask: PChar; var Handle: THandle; Attrib: cardinal;
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AFileStatus: PFileStatus; FileStatusLen: cardinal;
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var Count: cardinal; InfoLevel: cardinal): cardinal; cdecl;
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external 'DOSCALLS' index 264;
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function DosFindNext (Handle: THandle; AFileStatus: PFileStatus;
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FileStatusLen: cardinal; var Count: cardinal): cardinal; cdecl;
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external 'DOSCALLS' index 265;
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function DosFindClose (Handle: THandle): cardinal; cdecl;
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external 'DOSCALLS' index 263;
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function DosQueryCtryInfo (Size: cardinal; var Country: TCountryCode;
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var Res: TCountryInfo; var ActualSize: cardinal): cardinal; cdecl;
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external 'NLS' index 5;
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function DosMapCase (Size: cardinal; var Country: TCountryCode;
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AString: PChar): cardinal; cdecl; external 'NLS' index 7;
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procedure DosSleep (MSec: cardinal); cdecl; external 'DOSCALLS' index 229;
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function DosCreateQueue (var Handle: THandle; Priority:longint;
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Name: PChar): cardinal; cdecl;
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external 'QUECALLS' index 16;
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function DosReadQueue (Handle: THandle; var ReqBuffer: TRequestData;
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var DataLen: cardinal; var DataPtr: pointer;
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Element, Wait: cardinal; var Priority: byte;
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ASem: THandle): cardinal; cdecl;
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external 'QUECALLS' index 9;
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function DosCloseQueue (Handle: THandle): cardinal; cdecl;
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external 'QUECALLS' index 11;
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function DosStartSession (var AStartData: TStartData;
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var SesID, PID: cardinal): cardinal; cdecl;
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external 'SESMGR' index 37;
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function DosFreeMem(P:pointer):cardinal; cdecl; external 'DOSCALLS' index 304;
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{****************************************************************************
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File Functions
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****************************************************************************}
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const
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ofRead = $0000; {Open for reading}
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ofWrite = $0001; {Open for writing}
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ofReadWrite = $0002; {Open for reading/writing}
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doDenyRW = $0010; {DenyAll (no sharing)}
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faCreateNew = $00010000; {Create if file does not exist}
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faOpenReplace = $00040000; {Truncate if file exists}
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faCreate = $00050000; {Create if file does not exist, truncate otherwise}
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FindResvdMask = $00003737; {Allowed bits in attribute
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specification for DosFindFirst call.}
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{$ASMMODE INTEL}
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function FileOpen (const FileName: string; Mode: integer): longint; assembler;
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asm
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push ebx
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{$IFDEF REGCALL}
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mov ecx, edx
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mov edx, eax
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{$ELSE REGCALL}
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mov ecx, Mode
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mov edx, FileName
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{$ENDIF REGCALL}
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(* DenyAll if sharing not specified. *)
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test ecx, 112
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jnz @FOpen1
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or ecx, 16
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@FOpen1:
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mov eax, 7F2Bh
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call syscall
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(* syscall __open() returns -1 in case of error, i.e. exactly what we need *)
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pop ebx
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end {['eax', 'ebx', 'ecx', 'edx']};
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function FileCreate (const FileName: string): longint; assembler;
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asm
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push ebx
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{$IFDEF REGCALL}
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mov edx, eax
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{$ELSE REGCALL}
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mov edx, FileName
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{$ENDIF REGCALL}
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mov eax, 7F2Bh
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mov ecx, ofReadWrite or faCreate or doDenyRW (* Sharing to DenyAll *)
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call syscall
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pop ebx
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end {['eax', 'ebx', 'ecx', 'edx']};
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function FileCreate (const FileName: string; Mode: integer): longint;
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begin
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FileCreate:=FileCreate(FileName);
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end;
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function FileRead (Handle: longint; var Buffer; Count: longint): longint;
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assembler;
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asm
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push ebx
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{$IFDEF REGCALL}
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mov ebx, eax
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{$ELSE REGCALL}
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mov ebx, Handle
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mov ecx, Count
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mov edx, Buffer
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{$ENDIF REGCALL}
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mov eax, 3F00h
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call syscall
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jnc @FReadEnd
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mov eax, -1
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@FReadEnd:
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pop ebx
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end {['eax', 'ebx', 'ecx', 'edx']};
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function FileWrite (Handle: longint; const Buffer; Count: longint): longint;
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assembler;
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asm
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push ebx
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{$IFDEF REGCALL}
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mov ebx, eax
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{$ELSE REGCALL}
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mov ebx, Handle
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mov ecx, Count
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mov edx, Buffer
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{$ENDIF REGCALL}
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mov eax, 4000h
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call syscall
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jnc @FWriteEnd
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mov eax, -1
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@FWriteEnd:
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pop ebx
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end {['eax', 'ebx', 'ecx', 'edx']};
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function FileSeek (Handle, FOffset, Origin: longint): longint; assembler;
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asm
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push ebx
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{$IFDEF REGCALL}
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mov ebx, eax
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mov eax, ecx
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{$ELSE REGCALL}
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mov ebx, Handle
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mov eax, Origin
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mov edx, FOffset
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{$ENDIF REGCALL}
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mov ah, 42h
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call syscall
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jnc @FSeekEnd
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mov eax, -1
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@FSeekEnd:
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pop ebx
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end {['eax', 'ebx', 'edx']};
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|
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function FileSeek (Handle: longint; FOffset, Origin: Int64): Int64;
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begin
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{$warning need to add 64bit call }
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Result:=FileSeek(Handle,Longint(Foffset),Longint(Origin));
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end;
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|
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procedure FileClose (Handle: longint);
|
|
begin
|
|
if (Handle > 4) or ((os_mode = osOS2) and (Handle > 2)) then
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asm
|
|
push ebx
|
|
mov eax, 3E00h
|
|
mov ebx, Handle
|
|
call syscall
|
|
pop ebx
|
|
end ['eax'];
|
|
end;
|
|
|
|
|
|
function FileTruncate (Handle, Size: longint): boolean; assembler;
|
|
asm
|
|
push ebx
|
|
{$IFDEF REGCALL}
|
|
mov ebx, eax
|
|
{$ELSE REGCALL}
|
|
mov ebx, Handle
|
|
mov edx, Size
|
|
{$ENDIF REGCALL}
|
|
mov eax, 7F25h
|
|
push ebx
|
|
call syscall
|
|
pop ebx
|
|
jc @FTruncEnd
|
|
mov eax, 4202h
|
|
mov edx, 0
|
|
call syscall
|
|
mov eax, 0
|
|
jnc @FTruncEnd
|
|
dec eax
|
|
@FTruncEnd:
|
|
pop ebx
|
|
end {['eax', 'ebx', 'ecx', 'edx']};
|
|
|
|
|
|
function FileAge (const FileName: string): longint;
|
|
var Handle: longint;
|
|
begin
|
|
Handle := FileOpen (FileName, 0);
|
|
if Handle <> -1 then
|
|
begin
|
|
Result := FileGetDate (Handle);
|
|
FileClose (Handle);
|
|
end
|
|
else
|
|
Result := -1;
|
|
end;
|
|
|
|
|
|
function FileExists (const FileName: string): boolean; assembler;
|
|
asm
|
|
{$IFDEF REGCALL}
|
|
mov edx, eax
|
|
{$ELSE REGCALL}
|
|
mov edx, FileName
|
|
{$ENDIF REGCALL}
|
|
mov ax, 4300h
|
|
call syscall
|
|
mov eax, 0
|
|
jc @FExistsEnd
|
|
test cx, 18h
|
|
jnz @FExistsEnd
|
|
inc eax
|
|
@FExistsEnd:
|
|
end {['eax', 'ecx', 'edx']};
|
|
|
|
|
|
type TRec = record
|
|
T, D: word;
|
|
end;
|
|
PSearchRec = ^SearchRec;
|
|
|
|
function FindFirst (const Path: string; Attr: longint; out Rslt: TSearchRec): longint;
|
|
|
|
var SR: PSearchRec;
|
|
FStat: PFileFindBuf3;
|
|
Count: cardinal;
|
|
Err: cardinal;
|
|
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
New (FStat);
|
|
Rslt.FindHandle := THandle ($FFFFFFFF);
|
|
Count := 1;
|
|
Err := DosFindFirst (PChar (Path), Rslt.FindHandle,
|
|
Attr and FindResvdMask, FStat, SizeOf (FStat^), Count,
|
|
ilStandard);
|
|
if (Err = 0) and (Count = 0) then Err := 18;
|
|
FindFirst := -Err;
|
|
if Err = 0 then
|
|
begin
|
|
Rslt.Name := FStat^.Name;
|
|
Rslt.Size := FStat^.FileSize;
|
|
Rslt.Attr := FStat^.AttrFile;
|
|
Rslt.ExcludeAttr := 0;
|
|
TRec (Rslt.Time).T := FStat^.TimeLastWrite;
|
|
TRec (Rslt.Time).D := FStat^.DateLastWrite;
|
|
end;
|
|
Dispose (FStat);
|
|
end
|
|
else
|
|
begin
|
|
Err := DOS.DosError;
|
|
GetMem (SR, SizeOf (SearchRec));
|
|
Rslt.FindHandle := longint(SR);
|
|
DOS.FindFirst (Path, Attr, SR^);
|
|
FindFirst := -DOS.DosError;
|
|
if DosError = 0 then
|
|
begin
|
|
Rslt.Time := SR^.Time;
|
|
Rslt.Size := SR^.Size;
|
|
Rslt.Attr := SR^.Attr;
|
|
Rslt.ExcludeAttr := 0;
|
|
Rslt.Name := SR^.Name;
|
|
end;
|
|
DOS.DosError := Err;
|
|
end;
|
|
end;
|
|
|
|
|
|
function FindNext (var Rslt: TSearchRec): longint;
|
|
|
|
var SR: PSearchRec;
|
|
FStat: PFileFindBuf3;
|
|
Count: cardinal;
|
|
Err: cardinal;
|
|
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
New (FStat);
|
|
Count := 1;
|
|
Err := DosFindNext (Rslt.FindHandle, FStat, SizeOf (FStat^),
|
|
Count);
|
|
if (Err = 0) and (Count = 0) then Err := 18;
|
|
FindNext := -Err;
|
|
if Err = 0 then
|
|
begin
|
|
Rslt.Name := FStat^.Name;
|
|
Rslt.Size := FStat^.FileSize;
|
|
Rslt.Attr := FStat^.AttrFile;
|
|
Rslt.ExcludeAttr := 0;
|
|
TRec (Rslt.Time).T := FStat^.TimeLastWrite;
|
|
TRec (Rslt.Time).D := FStat^.DateLastWrite;
|
|
end;
|
|
Dispose (FStat);
|
|
end
|
|
else
|
|
begin
|
|
SR := PSearchRec (Rslt.FindHandle);
|
|
if SR <> nil then
|
|
begin
|
|
DOS.FindNext (SR^);
|
|
FindNext := -DosError;
|
|
if DosError = 0 then
|
|
begin
|
|
Rslt.Time := SR^.Time;
|
|
Rslt.Size := SR^.Size;
|
|
Rslt.Attr := SR^.Attr;
|
|
Rslt.ExcludeAttr := 0;
|
|
Rslt.Name := SR^.Name;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure FindClose (var F: TSearchrec);
|
|
|
|
var SR: PSearchRec;
|
|
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
DosFindClose (F.FindHandle);
|
|
end
|
|
else
|
|
begin
|
|
SR := PSearchRec (F.FindHandle);
|
|
DOS.FindClose (SR^);
|
|
FreeMem (SR, SizeOf (SearchRec));
|
|
end;
|
|
F.FindHandle := 0;
|
|
end;
|
|
|
|
|
|
function FileGetDate (Handle: longint): longint; assembler;
|
|
asm
|
|
push ebx
|
|
{$IFDEF REGCALL}
|
|
mov ebx, eax
|
|
{$ELSE REGCALL}
|
|
mov ebx, Handle
|
|
{$ENDIF REGCALL}
|
|
mov ax, 5700h
|
|
call syscall
|
|
mov eax, -1
|
|
jc @FGetDateEnd
|
|
mov ax, dx
|
|
shld eax, ecx, 16
|
|
@FGetDateEnd:
|
|
pop ebx
|
|
end {['eax', 'ebx', 'ecx', 'edx']};
|
|
|
|
|
|
function FileSetDate (Handle, Age: longint): longint;
|
|
var FStat: PFileStatus3;
|
|
RC: cardinal;
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
New (FStat);
|
|
RC := DosQueryFileInfo (Handle, ilStandard, FStat,
|
|
SizeOf (FStat^));
|
|
if RC <> 0 then
|
|
FileSetDate := -1
|
|
else
|
|
begin
|
|
FStat^.DateLastAccess := Hi (Age);
|
|
FStat^.DateLastWrite := Hi (Age);
|
|
FStat^.TimeLastAccess := Lo (Age);
|
|
FStat^.TimeLastWrite := Lo (Age);
|
|
RC := DosSetFileInfo (Handle, ilStandard, FStat,
|
|
SizeOf (FStat^));
|
|
if RC <> 0 then
|
|
FileSetDate := -1
|
|
else
|
|
FileSetDate := 0;
|
|
end;
|
|
Dispose (FStat);
|
|
end
|
|
else
|
|
asm
|
|
push ebx
|
|
mov ax, 5701h
|
|
mov ebx, Handle
|
|
mov cx, word ptr [Age]
|
|
mov dx, word ptr [Age + 2]
|
|
call syscall
|
|
jnc @FSetDateEnd
|
|
mov eax, -1
|
|
@FSetDateEnd:
|
|
mov Result, eax
|
|
pop ebx
|
|
end ['eax', 'ecx', 'edx'];
|
|
end;
|
|
|
|
|
|
function FileGetAttr (const FileName: string): longint; assembler;
|
|
asm
|
|
{$IFDEF REGCALL}
|
|
mov edx, eax
|
|
{$ELSE REGCALL}
|
|
mov edx, FileName
|
|
{$ENDIF REGCALL}
|
|
mov ax, 4300h
|
|
call syscall
|
|
jnc @FGetAttrEnd
|
|
mov eax, -1
|
|
@FGetAttrEnd:
|
|
end {['eax', 'edx']};
|
|
|
|
|
|
function FileSetAttr (const Filename: string; Attr: longint): longint; assembler;
|
|
asm
|
|
{$IFDEF REGCALL}
|
|
mov ecx, edx
|
|
mov edx, eax
|
|
{$ELSE REGCALL}
|
|
mov ecx, Attr
|
|
mov edx, FileName
|
|
{$ENDIF REGCALL}
|
|
mov ax, 4301h
|
|
call syscall
|
|
mov eax, 0
|
|
jnc @FSetAttrEnd
|
|
mov eax, -1
|
|
@FSetAttrEnd:
|
|
end {['eax', 'ecx', 'edx']};
|
|
|
|
|
|
function DeleteFile (const FileName: string): boolean; assembler;
|
|
asm
|
|
{$IFDEF REGCALL}
|
|
mov edx, eax
|
|
{$ELSE REGCALL}
|
|
mov edx, FileName
|
|
{$ENDIF REGCALL}
|
|
mov ax, 4100h
|
|
call syscall
|
|
mov eax, 0
|
|
jc @FDeleteEnd
|
|
inc eax
|
|
@FDeleteEnd:
|
|
end {['eax', 'edx']};
|
|
|
|
|
|
function RenameFile (const OldName, NewName: string): boolean; assembler;
|
|
asm
|
|
push edi
|
|
{$IFDEF REGCALL}
|
|
mov edx, eax
|
|
mov edi, edx
|
|
{$ELSE REGCALL}
|
|
mov edx, OldName
|
|
mov edi, NewName
|
|
{$ENDIF REGCALL}
|
|
mov ax, 5600h
|
|
call syscall
|
|
mov eax, 0
|
|
jc @FRenameEnd
|
|
inc eax
|
|
@FRenameEnd:
|
|
pop edi
|
|
end {['eax', 'edx', 'edi']};
|
|
|
|
|
|
{****************************************************************************
|
|
Disk Functions
|
|
****************************************************************************}
|
|
|
|
{$ASMMODE ATT}
|
|
|
|
function DiskFree (Drive: byte): int64;
|
|
|
|
var FI: TFSinfo;
|
|
RC: cardinal;
|
|
|
|
begin
|
|
if (os_mode = osDOS) or (os_mode = osDPMI) then
|
|
{Function 36 is not supported in OS/2.}
|
|
asm
|
|
pushl %ebx
|
|
movb Drive,%dl
|
|
movb $0x36,%ah
|
|
call syscall
|
|
cmpw $-1,%ax
|
|
je .LDISKFREE1
|
|
mulw %cx
|
|
mulw %bx
|
|
shll $16,%edx
|
|
movw %ax,%dx
|
|
movl $0,%eax
|
|
xchgl %edx,%eax
|
|
jmp .LDISKFREE2
|
|
.LDISKFREE1:
|
|
cltd
|
|
.LDISKFREE2:
|
|
popl %ebx
|
|
leave
|
|
ret
|
|
end
|
|
else
|
|
{In OS/2, we use the filesystem information.}
|
|
begin
|
|
RC := DosQueryFSInfo (Drive, 1, FI, SizeOf (FI));
|
|
if RC = 0 then
|
|
DiskFree := int64 (FI.Free_Clusters) *
|
|
int64 (FI.Sectors_Per_Cluster) * int64 (FI.Bytes_Per_Sector)
|
|
else
|
|
DiskFree := -1;
|
|
end;
|
|
end;
|
|
|
|
function DiskSize (Drive: byte): int64;
|
|
|
|
var FI: TFSinfo;
|
|
RC: cardinal;
|
|
|
|
begin
|
|
if (os_mode = osDOS) or (os_mode = osDPMI) then
|
|
{Function 36 is not supported in OS/2.}
|
|
asm
|
|
pushl %ebx
|
|
movb Drive,%dl
|
|
movb $0x36,%ah
|
|
call syscall
|
|
movw %dx,%bx
|
|
cmpw $-1,%ax
|
|
je .LDISKSIZE1
|
|
mulw %cx
|
|
mulw %bx
|
|
shll $16,%edx
|
|
movw %ax,%dx
|
|
movl $0,%eax
|
|
xchgl %edx,%eax
|
|
jmp .LDISKSIZE2
|
|
.LDISKSIZE1:
|
|
cltd
|
|
.LDISKSIZE2:
|
|
popl %ebx
|
|
leave
|
|
ret
|
|
end
|
|
else
|
|
{In OS/2, we use the filesystem information.}
|
|
begin
|
|
RC := DosQueryFSinfo (Drive, 1, FI, SizeOf (FI));
|
|
if RC = 0 then
|
|
DiskSize := int64 (FI.Total_Clusters) *
|
|
int64 (FI.Sectors_Per_Cluster) * int64 (FI.Bytes_Per_Sector)
|
|
else
|
|
DiskSize := -1;
|
|
end;
|
|
end;
|
|
|
|
|
|
function GetCurrentDir: string;
|
|
begin
|
|
GetDir (0, Result);
|
|
end;
|
|
|
|
|
|
function SetCurrentDir (const NewDir: string): boolean;
|
|
begin
|
|
{$I-}
|
|
ChDir (NewDir);
|
|
Result := (IOResult = 0);
|
|
{$I+}
|
|
end;
|
|
|
|
|
|
function CreateDir (const NewDir: string): boolean;
|
|
begin
|
|
{$I-}
|
|
MkDir (NewDir);
|
|
Result := (IOResult = 0);
|
|
{$I+}
|
|
end;
|
|
|
|
|
|
function RemoveDir (const Dir: string): boolean;
|
|
begin
|
|
{$I-}
|
|
RmDir (Dir);
|
|
Result := (IOResult = 0);
|
|
{$I+}
|
|
end;
|
|
|
|
|
|
{$ASMMODE INTEL}
|
|
function DirectoryExists (const Directory: string): boolean; assembler;
|
|
asm
|
|
{$IFDEF REGCALL}
|
|
mov edx, eax
|
|
{$ELSE REGCALL}
|
|
mov edx, Directory
|
|
{$ENDIF REGCALL}
|
|
mov ax, 4300h
|
|
call syscall
|
|
mov eax, 0
|
|
jc @FExistsEnd
|
|
test cx, 10h
|
|
jz @FExistsEnd
|
|
inc eax
|
|
@FExistsEnd:
|
|
end {['eax', 'ecx', 'edx']};
|
|
|
|
|
|
{****************************************************************************
|
|
Time Functions
|
|
****************************************************************************}
|
|
|
|
procedure GetLocalTime (var SystemTime: TSystemTime); assembler;
|
|
asm
|
|
(* Expects the default record alignment (word)!!! *)
|
|
push edi
|
|
{$IFDEF REGCALL}
|
|
push eax
|
|
{$ENDIF REGCALL}
|
|
mov ah, 2Ah
|
|
call syscall
|
|
{$IFDEF REGCALL}
|
|
pop eax
|
|
{$ELSE REGCALL}
|
|
mov edi, SystemTime
|
|
{$ENDIF REGCALL}
|
|
mov ax, cx
|
|
stosw
|
|
xor eax, eax
|
|
mov al, 10
|
|
mul dl
|
|
shl eax, 16
|
|
mov al, dh
|
|
stosd
|
|
push edi
|
|
mov ah, 2Ch
|
|
call syscall
|
|
pop edi
|
|
xor eax, eax
|
|
mov al, cl
|
|
shl eax, 16
|
|
mov al, ch
|
|
stosd
|
|
mov al, dl
|
|
shl eax, 16
|
|
mov al, dh
|
|
stosd
|
|
pop edi
|
|
end {['eax', 'ecx', 'edx', 'edi']};
|
|
{$asmmode default}
|
|
|
|
|
|
{****************************************************************************
|
|
Misc Functions
|
|
****************************************************************************}
|
|
|
|
procedure Beep;
|
|
begin
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Locale Functions
|
|
****************************************************************************}
|
|
|
|
procedure InitAnsi;
|
|
var I: byte;
|
|
Country: TCountryCode;
|
|
begin
|
|
for I := 0 to 255 do
|
|
UpperCaseTable [I] := Chr (I);
|
|
Move (UpperCaseTable, LowerCaseTable, SizeOf (UpperCaseTable));
|
|
if os_mode = osOS2 then
|
|
begin
|
|
FillChar (Country, SizeOf (Country), 0);
|
|
DosMapCase (SizeOf (UpperCaseTable), Country, @UpperCaseTable);
|
|
end
|
|
else
|
|
begin
|
|
(* !!! TODO: DOS/DPMI mode support!!! *)
|
|
end;
|
|
for I := 0 to 255 do
|
|
if UpperCaseTable [I] <> Chr (I) then
|
|
LowerCaseTable [Ord (UpperCaseTable [I])] := Chr (I);
|
|
end;
|
|
|
|
|
|
procedure InitInternational;
|
|
var Country: TCountryCode;
|
|
CtryInfo: TCountryInfo;
|
|
Size: cardinal;
|
|
RC: cardinal;
|
|
begin
|
|
Size := 0;
|
|
FillChar (Country, SizeOf (Country), 0);
|
|
FillChar (CtryInfo, SizeOf (CtryInfo), 0);
|
|
RC := DosQueryCtryInfo (SizeOf (CtryInfo), Country, CtryInfo, Size);
|
|
if RC = 0 then
|
|
begin
|
|
DateSeparator := CtryInfo.DateSeparator;
|
|
case CtryInfo.DateFormat of
|
|
1: begin
|
|
ShortDateFormat := 'd/m/y';
|
|
LongDateFormat := 'dd" "mmmm" "yyyy';
|
|
end;
|
|
2: begin
|
|
ShortDateFormat := 'y/m/d';
|
|
LongDateFormat := 'yyyy" "mmmm" "dd';
|
|
end;
|
|
3: begin
|
|
ShortDateFormat := 'm/d/y';
|
|
LongDateFormat := 'mmmm" "dd" "yyyy';
|
|
end;
|
|
end;
|
|
TimeSeparator := CtryInfo.TimeSeparator;
|
|
DecimalSeparator := CtryInfo.DecimalSeparator;
|
|
ThousandSeparator := CtryInfo.ThousandSeparator;
|
|
CurrencyFormat := CtryInfo.CurrencyFormat;
|
|
CurrencyString := PChar (CtryInfo.CurrencyUnit);
|
|
end;
|
|
InitAnsi;
|
|
InitInternationalGeneric;
|
|
end;
|
|
|
|
function SysErrorMessage(ErrorCode: Integer): String;
|
|
|
|
begin
|
|
Result:=Format(SUnknownErrorCode,[ErrorCode]);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
OS Utils
|
|
****************************************************************************}
|
|
|
|
Function GetEnvironmentVariable(Const EnvVar : String) : String;
|
|
|
|
begin
|
|
GetEnvironmentVariable := StrPas (GetEnvPChar (EnvVar));
|
|
end;
|
|
|
|
|
|
Function GetEnvironmentVariableCount : Integer;
|
|
|
|
begin
|
|
(* Result:=FPCCountEnvVar(EnvP); - the amount is already known... *)
|
|
GetEnvironmentVariableCount := EnvC;
|
|
end;
|
|
|
|
|
|
Function GetEnvironmentString(Index : Integer) : String;
|
|
|
|
begin
|
|
Result:=FPCGetEnvStrFromP (EnvP, Index);
|
|
end;
|
|
|
|
|
|
{$ASMMODE INTEL}
|
|
procedure Sleep (Milliseconds: cardinal);
|
|
|
|
begin
|
|
if os_mode = osOS2 then DosSleep (Milliseconds) else
|
|
asm
|
|
mov edx, Milliseconds
|
|
mov eax, 7F30h
|
|
call syscall
|
|
end ['eax', 'edx'];
|
|
end;
|
|
{$ASMMODE DEFAULT}
|
|
|
|
|
|
function ExecuteProcess (const Path: AnsiString; const ComLine: AnsiString):
|
|
integer;
|
|
var
|
|
HQ: THandle;
|
|
SPID, STID, QName: shortstring;
|
|
SD: TStartData;
|
|
SID, PID: cardinal;
|
|
RD: TRequestData;
|
|
PCI: PChildInfo;
|
|
CISize: cardinal;
|
|
Prio: byte;
|
|
E: EOSError;
|
|
CommandLine: ansistring;
|
|
|
|
begin
|
|
if os_Mode = osOS2 then
|
|
begin
|
|
FillChar (SD, SizeOf (SD), 0);
|
|
SD.Length := 24;
|
|
SD.Related := ssf_Related_Child;
|
|
SD.PgmName := PChar (Path);
|
|
SD.PgmInputs := PChar (ComLine);
|
|
Str (GetProcessID, SPID);
|
|
Str (ThreadID, STID);
|
|
QName := '\QUEUES\FPC_ExecuteProcess_p' + SPID + 't' + STID + '.QUE'#0;
|
|
SD.TermQ := @QName [1];
|
|
Result := DosCreateQueue (HQ, quFIFO or quConvert_Address, @QName [1]);
|
|
if Result = 0 then
|
|
begin
|
|
Result := DosStartSession (SD, SID, PID);
|
|
if (Result = 0) or (Result = 457) then
|
|
begin
|
|
Result := DosReadQueue (HQ, RD, CISize, PCI, 0, 0, Prio, 0);
|
|
if Result = 0 then
|
|
begin
|
|
Result := PCI^.Return;
|
|
DosCloseQueue (HQ);
|
|
DosFreeMem (PCI);
|
|
Exit;
|
|
end;
|
|
end;
|
|
DosCloseQueue (HQ);
|
|
end;
|
|
if ComLine = '' then
|
|
CommandLine := Path
|
|
else
|
|
CommandLine := Path + ' ' + ComLine;
|
|
E := EOSError.CreateFmt (SExecuteProcessFailed, [CommandLine, Result]);
|
|
E.ErrorCode := Result;
|
|
raise E;
|
|
end else
|
|
begin
|
|
Dos.Exec (Path, ComLine);
|
|
if DosError <> 0 then
|
|
begin
|
|
if ComLine = '' then
|
|
CommandLine := Path
|
|
else
|
|
CommandLine := Path + ' ' + ComLine;
|
|
E := EOSError.CreateFmt (SExecuteProcessFailed, [CommandLine, DosError]);
|
|
E.ErrorCode := DosError;
|
|
raise E;
|
|
end;
|
|
ExecuteProcess := DosExitCode;
|
|
end;
|
|
end;
|
|
|
|
|
|
function ExecuteProcess (const Path: AnsiString;
|
|
const ComLine: array of AnsiString): integer;
|
|
|
|
var
|
|
CommandLine: AnsiString;
|
|
I: integer;
|
|
|
|
begin
|
|
Commandline := '';
|
|
for I := 0 to High (ComLine) do
|
|
if Pos (' ', ComLine [I]) <> 0 then
|
|
CommandLine := CommandLine + ' ' + '"' + ComLine [I] + '"'
|
|
else
|
|
CommandLine := CommandLine + ' ' + Comline [I];
|
|
ExecuteProcess := ExecuteProcess (Path, CommandLine);
|
|
end;
|
|
|
|
|
|
|
|
{****************************************************************************
|
|
Initialization code
|
|
****************************************************************************}
|
|
|
|
Initialization
|
|
InitExceptions; { Initialize exceptions. OS independent }
|
|
InitInternational; { Initialize internationalization settings }
|
|
Finalization
|
|
DoneExceptions;
|
|
end.
|