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Kernel : Implementing new FILE API with Path Filtering
This commit is contained in:
Rémy GIBERT
parent
5251ba0527
commit
92c1b3cb49
@ -269,6 +269,12 @@ SYS.DecOutYA .EQ $DE
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*SYS.FPUTS .EQ $F6
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*--------------------------------------
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SYS.FOPEN .EQ $E0
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SYS.FOPEN.R .EQ $01 Open For Read
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SYS.FOPEN.W .EQ $02 Open For Write
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SYS.FOPEN.A .EQ $04 Append
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SYS.FOPEN.T .EQ $08 Open/Append in Text mode
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SYS.FOPEN.X .EQ $80 Create if not exists
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SYS.FCLOSE .EQ $E2
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SYS.FREAD .EQ $E4
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SYS.FWRITE .EQ $E6
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@ -284,7 +290,7 @@ SYS.OPENDIRYA .EQ $F4
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SYS.READDIRYA .EQ $F6
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SYS.CLOSEDIRYA .EQ $F8
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SYS.MKDIR .EQ $FA
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SYS.MKDIRYA .EQ $FA
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SYS.MKNOD .EQ $FC
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SYS.MKFIFO .EQ $FE
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*--------------------------------------
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@ -544,7 +550,10 @@ S.FILE.TYPE.LNK .EQ 5
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S.FILE.TYPE.SOCK .EQ 6
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S.FILE.TYPE.FIFO .EQ 7
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S.FILE.DATA .EQ 16 64 byte opaque data (for NFSv3)
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S.FILE.PRODOS.REF .EQ 2
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S.FILE.PRODOS.IOBUF .EQ 3
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*
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S.FILE.PRODOS .EQ 4
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*
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* no S.FILE,Variable size
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*--------------------------------------
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@ -552,18 +561,21 @@ S.FILE.DATA .EQ 16 64 byte opaque data (for NFSv3)
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*--------------------------------------
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S.DIR.HANDLER .EQ 0
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S.DIR.INO .EQ 1
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S.DIR.PATH .EQ 2
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*
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S.DIR.PATH .EQ 2 PSTR
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* no S.DIR
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*--------------------------------------
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* S.DIRENT for ReadDir
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*--------------------------------------
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S.DIRENT
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S.DIRENT.STAT .EQ 0
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S.DIRENT.NAME .EQ S.STAT
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S.DIRENT
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S.DIRENT.NAME .EQ S.STAT PSTR
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* no S.DIRENT,Variable size
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*--------------------------------------
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S.PFILTER
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S.PFT.PATH .EQ 0
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S.PFT.HANDLER .EQ 23
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S.PFT.DATA .EQ 24 8 bytes OPAQUE data for handler
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*
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S.PFT .EQ 32
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*--------------------------------------
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MAN
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SAVE INC/A2OSX.I
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167
SYS/KERNEL.S.FIL.txt
Normal file
167
SYS/KERNEL.S.FIL.txt
Normal file
@ -0,0 +1,167 @@
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PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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*--------------------------------------
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* For All SYS.xxxx calls, X = #SYSCall
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* Must be kept in X before calling
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* S.PFTCheckPathXX
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*--------------------------------------
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* S.FOPEN
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* In :
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* PULLW = PATH (PSTR)
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* PULLB = MODE
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* Out :
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* CC : A = hFILE
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* CS : A = EC
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*--------------------------------------
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S.FOPEN jsr S.PFTCHECKPATHSTK
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>PULLW MLICALL.PARAMS+1
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>PULLB S.FOPEN.MODE
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>PUSHWI S.FILE.PRODOS
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>PUSHBI S.MEM.F.INIT0
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jsr S.GetMem
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bcs .99
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>STYA ZPQuickPtr1
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stx hFILE
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>PUSHWI 1024 get a ProDOS IOBUF
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>PUSHBI S.MEM.F.ALIGN+S.MEM.F.NOMOVE
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jsr S.GetMem
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bcs .99
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>STYA MLICALL.PARAMS+3 Save Ptr to IOBUF for MLIOPEN call
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txa
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ldy #S.FILE.PRODOS.IOBUF
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sta (ZPQuickPtr1),y
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>MLICALL MLIOPEN
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bcc .1 Failed...
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bit S.FOPEN.MODE Create if not exists?
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bpl .98 no....error
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.1 lda MLICALL.PARAMS+5 get ref_num
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ldy #S.FILE.PRODOS.REF
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sta (ZPQuickPtr1),y
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lda S.FOPEN.MODE
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bit #SYS.FOPEN.A
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beq .1
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.1
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lda hFILE
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clc
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rts CC
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.98 pha save MLI error
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jsr S.FCLOSEA.1
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pla get back MLI error
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sec
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.99 rts
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*--------------------------------------
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S.FOPEN.MODE .BS 1
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hFILE .BS 1
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*--------------------------------------
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* S.FCLOSEA
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* In :
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* A = hFILE
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*--------------------------------------
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S.FCLOSEA jsr S.PFTCHECKFILEA
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr1
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S.FCLOSEA.1 ldy #S.FILE.PRODOS.REF
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lda (ZPQuickPtr1),y
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beq .1
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sta MLICALL.PARAMS+1
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>MLICALL MLICLOSE
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.1 ldy #S.FILE.PRODOS.IOBUF
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lda (ZPQuickPtr1),y
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beq .2
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jsr S.FreeMemA
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.2 lda hFILE
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jsr S.FreeMemA
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rts
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*--------------------------------------
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* S.FREAD
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* In :
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* PULLB = hFILE
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* PULLW = Bytes To Read
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* PULLW = Dest Ptr
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* Out :
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* Y,A = Bytes Read
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*--------------------------------------
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S.FREAD jsr S.PFTCHECKFILESTK
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>PULLB MLICALL.PARAMS+1
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>PULLW MLICALL.PARAMS+4
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>PULLW MLICALL.PARAMS+2
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>MLICALL MLIREAD
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bcs .9
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>LDYA MLICALL.PARAMS+6
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.9 rts
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*--------------------------------------
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* S.FWRITE
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* In :
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* PULLB = hFILE
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* PULLW = Bytes To Write
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* PULLW = Src Ptr
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* Out :
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* Y,A = Bytes Written
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*--------------------------------------
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S.FWRITE jsr S.PFTCHECKFILESTK
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>PULLB MLICALL.PARAMS+1
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>PULLW MLICALL.PARAMS+4
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>PULLW MLICALL.PARAMS+2
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>MLICALL MLIWRITE
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bcs .9
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>LDYA MLICALL.PARAMS+6
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.9 rts
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*--------------------------------------
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* S.FFLUSHA
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* In :
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* A = hFILE
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*--------------------------------------
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S.FFLUSHA jsr S.PFTCHECKFILEA
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sta MLICALL.PARAMS+1
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>MLICALL MLIFLUSH
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rts
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*--------------------------------------
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*--------------------------------------
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S.FSEEK
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*--------------------------------------
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*--------------------------------------
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S.FTELL
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*--------------------------------------
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*--------------------------------------
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S.FEOF
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*--------------------------------------
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*--------------------------------------
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S.REMOVE
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*--------------------------------------
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*--------------------------------------
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S.RENAME
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*--------------------------------------
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S.MKDIRYA jsr S.PFTCHECKPATHYA
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>STYA MLICALL.PARAMS+1
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lda #$C3
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sta MLICALL.PARAMS+3 Access
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lda #$0F
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sta MLICALL.PARAMS+4 type=Directory
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lda #$0D Storage=Linked List
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sta MLICALL.PARAMS+7
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>MLICALL MLICREATE
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rts
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*--------------------------------------
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MAN
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SAVE SYS/KERNEL.S.FIL
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LOAD SYS/KERNEL.S
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ASM
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@ -11,8 +11,14 @@ AUTO 6
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* CC :
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* CS : A = EC
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*--------------------------------------
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S.PFTCHECKPATHSTK
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lda (pStack) read PTR.LO on top of stack
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pha
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ldy #1
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lda (pStack),y read PTR.HI on top of stack
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ply
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S.PFTCHECKPATHYA
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phx save #SYSCALL
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stx S.PFT.SYSCALL save #SYSCALL
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>STYA ZPQuickPtr1
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>LDYA FltMgr.Table
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@ -31,15 +37,16 @@ S.PFTCHECKPATHYA
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dey
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bne .2
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lda (ZPQuickPtr2) get len again
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tay
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iny
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ldy #S.S.PFT.HANDLER
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lda (ZPQuickPtr2),y get hLib
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jsr S.GetMemPtrA
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>STYA .3+1
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pla getback #SYSCALL
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lda S.PFT.SYSCALL getback #SYSCALL
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sec
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sbc #SYS.FOPEN-4 0=Lib.load, 2=Lib.Unload
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tax
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pla discard JSR return @
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pla
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@ -50,21 +57,24 @@ S.PFTCHECKPATHYA
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.8 lda ZPQuickPtr2
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clc
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adc (ZPQuickPtr2) Add STR len
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adc #2 skip hMem & XOffset
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adc #S.PFT
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sta ZPQuickPtr2
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bcc .1 always
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bcc .1
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.9 plx restore X from Stack
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.9 >LDYA ZPQuickPtr1 restore passed params
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ldx S.PFT.SYSCALL
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rts
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*--------------------------------------
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* In :
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* Y,A = PTR to S.DIR
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* PUSHB/A = hFILE
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* Out :
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* CC : Y,A = PTR to S.DIRENT
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* CS : A = EC
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*--------------------------------------
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S.PFTCHECKFILEYA
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S.PFTCHECKFILESTK
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lda (pStack) read hFILE on top of stack
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S.PFTCHECKFILEA
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jsr GetMemPtrA X = unmidified
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.8 clc
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rts
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@ -73,14 +83,14 @@ S.PFTCHECKFILEYA
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rts
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*--------------------------------------
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* In :
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* Y,A = PTR to S.FILE
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* hDIR
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*--------------------------------------
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S.PFTCHECKDIRYA
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S.PFTCHECKDIRA lda (pStack) read hDIR on top of stack
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rts
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*--------------------------------------
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S.PFT.SYSCALL .BS 1
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*--------------------------------------
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MAN
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SAVE SYS/KERNEL.S.PFT
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