{
This file is part of the Free Pascal run time library.
A file in Amiga system run time library.
Copyright (c) 1998-2003 by Nils Sjoholm
member of the Amiga RTL development team.
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{
History:
Added the defines use_amiga_smartlink and
use_auto_openlib. Implemented autoopening
of the library.
14 Jan 2003.
Update for Amigaos 3.9
Changed startcode for unit.
09 Feb 2003.
nils.sjoholm@mailbox.swipnet.se Nils Sjoholm
}
{$I useamigasmartlink.inc}
{$ifdef use_amiga_smartlink}
{$smartlink on}
{$endif use_amiga_smartlink}
UNIT nonvolatile;
INTERFACE
USES exec;
Type
pNVInfo = ^tNVInfo;
tNVInfo = record
nvi_MaxStorage,
nvi_FreeStorage : ULONG;
end;
{***************************************************************************}
pNVEntry = ^tNVEntry;
tNVEntry = record
nve_Node : tMinNode;
nve_Name : STRPTR;
nve_Size,
nve_Protection : ULONG;
end;
const
{ bit definitions for mask in SetNVProtection(). Also used for
* NVEntry.nve_Protection.
}
NVEB_DELETE = 0 ;
NVEB_APPNAME = 31;
NVEF_DELETE = 1;
NVEF_APPNAME = -2147483648;
{***************************************************************************}
{ errors from StoreNV() }
NVERR_BADNAME = 1;
NVERR_WRITEPROT = 2;
NVERR_FAIL = 3;
NVERR_FATAL = 4;
{ --- functions in V40 or higher (Release 3.1) --- }
VAR NVBase : pLibrary;
const
NONVOLATILENAME : PChar = 'nonvolatile.library';
FUNCTION DeleteNV(const appName : pCHAR;const itemName : pCHAR; killRequesters : LONGINT) : BOOLEAN;
PROCEDURE FreeNVData(data : POINTER);
FUNCTION GetCopyNV(const appName : pCHAR;const itemName : pCHAR; killRequesters : LONGINT) : POINTER;
FUNCTION GetNVInfo(killRequesters : LONGINT) : pNVInfo;
FUNCTION GetNVList(const appName : pCHAR; killRequesters : LONGINT) : pMinList;
FUNCTION SetNVProtection(const appName : pCHAR;const itemName : pCHAR; mask : LONGINT; killRequesters : LONGINT) : BOOLEAN;
FUNCTION StoreNV(const appName : pCHAR;const itemName : pCHAR;const data : POINTER; length : ULONG; killRequesters : LONGINT) : WORD;
{Here we read how to compile this unit}
{You can remove this include and use a define instead}
{$I useautoopenlib.inc}
{$ifdef use_init_openlib}
procedure InitNONVOLATILELibrary;
{$endif use_init_openlib}
{This is a variable that knows how the unit is compiled}
var
NONVOLATILEIsCompiledHow : longint;
IMPLEMENTATION
{$ifndef dont_use_openlib}
uses msgbox;
{$endif dont_use_openlib}
FUNCTION DeleteNV(const appName : pCHAR;const itemName : pCHAR; killRequesters : LONGINT) : BOOLEAN;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L appName,A0
MOVEA.L itemName,A1
MOVE.L killRequesters,D1
MOVEA.L NVBase,A6
JSR -048(A6)
MOVEA.L (A7)+,A6
TST.W D0
BEQ.B @end
MOVEQ #1,D0
@end: MOVE.B D0,@RESULT
END;
END;
PROCEDURE FreeNVData(data : POINTER);
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L data,A0
MOVEA.L NVBase,A6
JSR -036(A6)
MOVEA.L (A7)+,A6
END;
END;
FUNCTION GetCopyNV(const appName : pCHAR;const itemName : pCHAR; killRequesters : LONGINT) : POINTER;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L appName,A0
MOVEA.L itemName,A1
MOVE.L killRequesters,D1
MOVEA.L NVBase,A6
JSR -030(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
FUNCTION GetNVInfo(killRequesters : LONGINT) : pNVInfo;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVE.L killRequesters,D1
MOVEA.L NVBase,A6
JSR -054(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
FUNCTION GetNVList(const appName : pCHAR; killRequesters : LONGINT) : pMinList;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L appName,A0
MOVE.L killRequesters,D1
MOVEA.L NVBase,A6
JSR -060(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
FUNCTION SetNVProtection(const appName : pCHAR;const itemName : pCHAR; mask : LONGINT; killRequesters : LONGINT) : BOOLEAN;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L appName,A0
MOVEA.L itemName,A1
MOVE.L mask,D2
MOVE.L killRequesters,D1
MOVEA.L NVBase,A6
JSR -066(A6)
MOVEA.L (A7)+,A6
TST.W D0
BEQ.B @end
MOVEQ #1,D0
@end: MOVE.B D0,@RESULT
END;
END;
FUNCTION StoreNV(const appName : pCHAR;const itemName : pCHAR;const data : POINTER; length : ULONG; killRequesters : LONGINT) : WORD;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L appName,A0
MOVEA.L itemName,A1
MOVEA.L data,A2
MOVE.L length,D0
MOVE.L killRequesters,D1
MOVEA.L NVBase,A6
JSR -042(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
const
{ Change VERSION and LIBVERSION to proper values }
VERSION : string[2] = '0';
LIBVERSION : longword = 0;
{$ifdef use_init_openlib}
{$Info Compiling initopening of nonvolatile.library}
{$Info don't forget to use InitNONVOLATILELibrary in the beginning of your program}
var
nonvolatile_exit : Pointer;
procedure ClosenonvolatileLibrary;
begin
ExitProc := nonvolatile_exit;
if NVBase <> nil then begin
CloseLibrary(NVBase);
NVBase := nil;
end;
end;
procedure InitNONVOLATILELibrary;
begin
NVBase := nil;
NVBase := OpenLibrary(NONVOLATILENAME,LIBVERSION);
if NVBase <> nil then begin
nonvolatile_exit := ExitProc;
ExitProc := @ClosenonvolatileLibrary;
end else begin
MessageBox('FPC Pascal Error',
'Can''t open nonvolatile.library version ' + VERSION + #10 +
'Deallocating resources and closing down',
'Oops');
halt(20);
end;
end;
begin
NONVOLATILEIsCompiledHow := 2;
{$endif use_init_openlib}
{$ifdef use_auto_openlib}
{$Info Compiling autoopening of nonvolatile.library}
var
nonvolatile_exit : Pointer;
procedure ClosenonvolatileLibrary;
begin
ExitProc := nonvolatile_exit;
if NVBase <> nil then begin
CloseLibrary(NVBase);
NVBase := nil;
end;
end;
begin
NVBase := nil;
NVBase := OpenLibrary(NONVOLATILENAME,LIBVERSION);
if NVBase <> nil then begin
nonvolatile_exit := ExitProc;
ExitProc := @ClosenonvolatileLibrary;
NONVOLATILEIsCompiledHow := 1;
end else begin
MessageBox('FPC Pascal Error',
'Can''t open nonvolatile.library version ' + VERSION + #10 +
'Deallocating resources and closing down',
'Oops');
halt(20);
end;
{$endif use_auto_openlib}
{$ifdef dont_use_openlib}
begin
NONVOLATILEIsCompiledHow := 3;
{$Warning No autoopening of nonvolatile.library compiled}
{$Warning Make sure you open nonvolatile.library yourself}
{$endif dont_use_openlib}
END. (* UNIT NONVOLATILE *)
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