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+ initial WASI implementation of DOS.GetFTime. Not working yet, due to a

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compiler bug, related to the import of fd_filestat_get from the wasiapi unit.

git-svn-id: trunk@49536 -
This commit is contained in:
nickysn 2021-06-23 20:04:03 +00:00
parent ba1dcfc6a4
commit 953893267b
3 changed files with 50 additions and 16 deletions
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2
rtl/wasi/Makefile
View File

@ -2664,7 +2664,7 @@ wasiapi$(PPUEXT) : wasiapi.pp wasiinc/wasitypes.inc wasiinc/wasiprocs.inc $(SYST
$(COMPILER) $< -Fiwasiinc
ctypes$(PPUEXT) : $(INC)/ctypes.pp $(SYSTEMUNIT)$(PPUEXT)
$(COMPILER) $<
dos$(PPUEXT) : dos.pp $(INC)/filerec.inc $(INC)/textrec.inc system$(PPUEXT)
dos$(PPUEXT) : dos.pp $(INC)/filerec.inc $(INC)/textrec.inc wasiapi$(PPUEXT) system$(PPUEXT)
$(COMPILER) $<
sysutils$(PPUEXT) : sysutils.pp $(wildcard $(OBJPASDIR)/sysutils/*.inc) \
objpas$(PPUEXT) wasiapi$(PPUEXT) sysconst$(PPUEXT) system$(PPUEXT)

2
rtl/wasi/Makefile.fpc
View File

@ -96,7 +96,7 @@ ctypes$(PPUEXT) : $(INC)/ctypes.pp $(SYSTEMUNIT)$(PPUEXT)
#
# TP7 Compatible RTL Units
#
dos$(PPUEXT) : dos.pp $(INC)/filerec.inc $(INC)/textrec.inc system$(PPUEXT)
dos$(PPUEXT) : dos.pp $(INC)/filerec.inc $(INC)/textrec.inc wasiapi$(PPUEXT) system$(PPUEXT)
$(COMPILER) $<
#

62
rtl/wasi/dos.pp
View File

@ -46,7 +46,7 @@ Type
{Extra Utils}
//function weekday(y,m,d : longint) : longint; platform;
//Procedure UnixDateToDt(SecsPast: LongInt; Var Dt: DateTime); platform;
Procedure WasiDateToDt(NanoSecsPast: UInt64; Var Dt: DateTime); platform;
//Function DTToUnixDate(DT: DateTime): LongInt; platform;
{Disk}
@ -54,11 +54,8 @@ Type
Implementation
//Uses
// UnixUtil,
// Strings,
// Unix,
// {$ifdef FPC_USE_LIBC}initc{$ELSE}Syscall{$ENDIF};
Uses
WasiAPI;
{$DEFINE HAS_GETMSCOUNT}
@ -140,8 +137,45 @@ begin
end;
Procedure UnixDateToDt(SecsPast: LongInt; Var Dt: DateTime);
Procedure WasiDateToDt(NanoSecsPast: UInt64; Var Dt: DateTime);
const
days_in_month: array [boolean, 1..12] of Byte =
((31,28,31,30,31,30,31,31,30,31,30,31),
(31,29,31,30,31,30,31,31,30,31,30,31));
var
leap: Boolean;
days_in_year: LongInt;
Begin
{ todo: convert UTC to local time, as soon as we can get the local timezone
from WASI: https://github.com/WebAssembly/WASI/issues/239 }
NanoSecsPast:=NanoSecsPast div 1000000000;
Dt.Sec:=NanoSecsPast mod 60;
NanoSecsPast:=NanoSecsPast div 60;
Dt.Min:=NanoSecsPast mod 60;
NanoSecsPast:=NanoSecsPast div 60;
Dt.Hour:=NanoSecsPast mod 24;
NanoSecsPast:=NanoSecsPast div 24;
Dt.Year:=1970;
leap:=false;
days_in_year:=365;
while NanoSecsPast>=days_in_year do
begin
Dec(NanoSecsPast,days_in_year);
Inc(Dt.Year);
leap:=((Dt.Year mod 4)=0) and (((Dt.Year mod 100)<>0) or ((Dt.Year mod 400)=0));
if leap then
days_in_year:=365
else
days_in_year:=366;
end;
Dt.Month:=1;
Inc(NanoSecsPast);
while NanoSecsPast>days_in_month[leap,Dt.Month] do
begin
Dec(NanoSecsPast,days_in_month[leap,Dt.Month]);
Inc(Dt.Month);
end;
Dt.Day:=Word(NanoSecsPast);
End;
@ -623,20 +657,20 @@ Begin
end;
Procedure getftime (var f; var time : longint);
{Var
Info: baseunix.stat;
DT: DateTime;}
Var
Info: __wasi_filestat_t;
DT: DateTime;
Begin
{ doserror:=0;
if fpfstat(filerec(f).handle,info)<0 then
doserror:=0;
if __wasi_fd_filestat_get(filerec(f).handle,@Info)<>__WASI_ERRNO_SUCCESS then
begin
Time:=0;
doserror:=6;
exit
end
else
UnixDateToDT(Info.st_mTime,DT);
PackTime(DT,Time);}
WasiDateToDt(Info.mtim,DT);
PackTime(DT,Time);
End;
Procedure setftime(var f; time : longint);