151 lines
3.8 KiB
C
151 lines
3.8 KiB
C
/* Copyright 1992 by Abacus Research and
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* Development, Inc. All rights reserved.
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*/
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#if !defined (OMIT_RCSID_STRINGS)
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char ROMlib_rcsid_hfsCreate[] =
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"$Id: hfsCreate.c 86 2005-05-25 00:47:12Z ctm $";
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#endif
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#include "rsys/common.h"
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#include "OSUtil.h"
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#include "FileMgr.h"
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#include "rsys/hfs.h"
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typedef enum { create, delete } createop;
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PRIVATE OSErr freeallblocks(HVCB *vcbp, filerec *frp)
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{
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OSErr retval;
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filecontrolblock *fcbp;
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ParamBlockRec pbr;
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fcbp = ROMlib_getfreefcbp();
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if (!fcbp)
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retval = tmfoErr;
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else {
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fcbp->fcbVPtr = RM(vcbp);
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fcbp->fcbFlNum = frp->filFlNum;
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fcbp->fcbPLen = frp->filPyLen;
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memmove((char *) fcbp->fcbExtRec, (char *) frp->filExtRec,
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(LONGINT) sizeof(frp->filExtRec));
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fcbp->fcbMdRByt = WRITEBIT;
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pbr.ioParam.ioMisc = 0;
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pbr.ioParam.ioRefNum = CW((char *) fcbp - (char *) MR(FCBSPtr));
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retval = ROMlib_allochelper((ioParam *) &pbr, FALSE, seteof, FALSE);
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if (retval == noErr) {
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fcbp->fcbPLen = frp->filRPyLen;
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memmove((char *) fcbp->fcbExtRec, (char *) frp->filRExtRec,
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(LONGINT) sizeof(frp->filRExtRec));
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fcbp->fcbMdRByt = WRITEBIT|RESOURCEBIT;
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retval = ROMlib_allochelper((ioParam *) &pbr, FALSE, seteof, FALSE);
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}
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}
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fcbp->fcbFlNum = 0;
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return retval;
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}
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PRIVATE OSErr createhelper(ioParam *pb, BOOLEAN async, createop op,
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LONGINT dirid, filekind kind)
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{
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OSErr err, err1;
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filekind curkind;
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btparam btparamrec;
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directoryrec *drp;
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filerec *frp;
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HVCB *vcbp;
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curkind = regular | directory;
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err = ROMlib_findvcbandfile(pb, dirid, &btparamrec, &curkind, FALSE);
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vcbp = btparamrec.vcbp;
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switch (err) {
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case noErr:
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if (op == create)
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err = dupFNErr;
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else {
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if (curkind == directory) {
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drp = (directoryrec *) DATAPFROMKEY(btparamrec.foundp);
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err = ROMlib_dirbusy(CL(drp->dirDirID), vcbp);
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if (err == noErr)
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{
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if (drp->dirVal != 0)
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err = fBsyErr;
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else
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err = ROMlib_writevcbp(vcbp);
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}
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if (err == noErr)
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err = ROMlib_dirdelete(&btparamrec);
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} else {
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frp = (filerec *) DATAPFROMKEY(btparamrec.foundp);
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if (ROMlib_alreadyopen(vcbp, CL(frp->filFlNum),
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(SignedByte *) 0, 0, eitherbusy) != noErr)
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err = fBsyErr;
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#if 0
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else
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err = ROMlib_dirtyleaf(frp, vcbp);
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#endif
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if (err == noErr)
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err = ROMlib_writevcbp(vcbp);
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if (err == noErr) {
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err = freeallblocks(vcbp, frp);
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if (err == noErr)
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err = ROMlib_filedelete(&btparamrec, regular);
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}
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}
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}
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break;
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case fnfErr:
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if (op == delete)
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err = fnfErr;
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else {
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err = ROMlib_writevcbp(vcbp);
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if (err == noErr) {
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if (kind == directory)
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err = ROMlib_btcreateemptydir(&btparamrec,
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&((HFileParam *)pb)->ioDirID);
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else
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err = ROMlib_btcreateemptyfile(&btparamrec);
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}
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}
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break;
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}
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if (vcbp)
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err1 = ROMlib_cleancache(vcbp);
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else
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err1 = noErr;
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if (err1 == noErr && vcbp)
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err1 = ROMlib_flushvcbp(vcbp);
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if (err == noErr)
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err = err1;
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PBRETURN(pb, err);
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}
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PUBLIC OSErr hfsPBCreate(ParmBlkPtr pb, BOOLEAN async)
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{
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return createhelper((ioParam *) pb, async, create, (LONGINT) 0, regular);
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}
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PUBLIC OSErr hfsPBHCreate(HParmBlkPtr pb, BOOLEAN async)
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{
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return createhelper((ioParam *)pb, async, create, CL(pb->fileParam.ioDirID),
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regular);
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}
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PUBLIC OSErr hfsPBDirCreate(HParmBlkPtr pb, BOOLEAN async)
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{
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return createhelper((ioParam *)pb, async, create, CL(pb->fileParam.ioDirID),
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directory);
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}
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PUBLIC OSErr hfsPBDelete(ParmBlkPtr pb, BOOLEAN async)
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{
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return createhelper((ioParam *) pb, async, delete, (LONGINT) 0,
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regular|directory);
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}
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PUBLIC OSErr hfsPBHDelete(HParmBlkPtr pb, BOOLEAN async)
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{
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return createhelper((ioParam *)pb, async, delete, CL(pb->fileParam.ioDirID),
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regular|directory);
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}
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