330 lines
8.1 KiB
C
330 lines
8.1 KiB
C
/*
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dslist.c
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Copyright (C) 2000 Petr Vandrovec
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Revision history:
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1.00 2000, April 30 Petr Vandrovec <vandrove@vc.cvut.cz>
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Initial version, copied from nwnet.c
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Added NWDSExtSyncList.
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1.01 2000, August 25 Petr Vandrovec <vandrove@vc.cvut.cz>
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Removed DS_RESOLVE_WALK_TREE from resolve calls.
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*/
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#include <ncp/nwcalls.h>
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#include "nwnet_i.h"
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static void NWDSRewindBuf(Buf_T* buf) {
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buf->curPos = buf->data;
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buf->dataend = buf->allocend;
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buf->attrCountPtr = NULL;
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buf->valCountPtr = NULL;
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}
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static NWDSCCODE __NWDSListV1(
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NWDSContextHandle ctx,
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NWCONN_HANDLE conn,
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NWObjectID objectID,
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nuint32 qflags,
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nuint32* iterHandle,
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nuint32 dsiflags,
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Buf_T* nameb,
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Buf_T* buffer
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) {
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NWDSCCODE err;
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NW_FRAGMENT rq_frag[2];
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NW_FRAGMENT rp_frag[2];
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nuint8 rq_b[20];
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nuint8 rp_b[4];
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nuint32 ctxflags;
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err = NWDSGetContext(ctx, DCK_FLAGS, &ctxflags);
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if (err)
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return err;
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if (ctxflags & DCV_TYPELESS_NAMES)
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qflags |= 0x0001;
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if (ctxflags & DCV_DEREF_BASE_CLASS) {
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qflags |= 0x0040;
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dsiflags |= DSI_DEREFERENCE_BASE_CLASS;
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}
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qflags |= ctx->dck.name_form << 1;
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DSET_LH(rq_b, 0, 1); /* version */
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DSET_LH(rq_b, 4, qflags); /* ctxflag */
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DSET_LH(rq_b, 8, *iterHandle); /* iterhandle */
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DSET_HL(rq_b, 12, objectID);
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DSET_LH(rq_b, 16, dsiflags);
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rq_frag[0].fragAddr.ro = rq_b;
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rq_frag[0].fragSize = 20;
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rq_frag[1].fragAddr.ro = NWDSBufRetrieve(nameb, &rq_frag[1].fragSize);
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NWDSBufStartPut(buffer, DSV_LIST);
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NWDSBufSetDSIFlags(buffer, dsiflags);
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rp_frag[0].fragAddr.rw = rp_b;
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rp_frag[0].fragSize = 4;
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rp_frag[1].fragAddr.rw = NWDSBufPutPtrLen(buffer, &rp_frag[1].fragSize);
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err = NWCFragmentRequest(conn, DSV_LIST, 2, rq_frag, 2, rp_frag,
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NULL);
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if (err)
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return err;
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if (rp_frag[0].fragSize < 4)
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return ERR_INVALID_SERVER_RESPONSE;
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NWDSBufPutSkip(buffer, rp_frag[1].fragSize);
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NWDSBufFinishPut(buffer);
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*iterHandle = DVAL_LH(rp_b, 0);
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return err;
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}
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static NWDSCCODE __NWDSListV2(
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NWDSContextHandle ctx,
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NWCONN_HANDLE conn,
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NWObjectID objectID,
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nuint32 qflags,
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nuint32* iterHandle,
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nuint32 dsiflags,
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Buf_T* nameb,
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const TimeStamp_T* ts,
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Buf_T* buffer
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) {
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NWDSCCODE err;
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NW_FRAGMENT rq_frag[3];
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NW_FRAGMENT rp_frag[2];
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nuint8 rq_b[20];
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nuint8 rq_b2[8];
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nuint8 rp_b[4];
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nuint32 ctxflags;
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err = NWDSGetContext(ctx, DCK_FLAGS, &ctxflags);
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if (err)
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return err;
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if (ctxflags & DCV_TYPELESS_NAMES)
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qflags |= 0x0001;
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if (ctxflags & DCV_DEREF_BASE_CLASS) {
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qflags |= 0x0040;
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dsiflags |= DSI_DEREFERENCE_BASE_CLASS;
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}
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qflags |= ctx->dck.name_form << 1;
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DSET_LH(rq_b, 0, 2); /* version */
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DSET_LH(rq_b, 4, qflags); /* ctxflag */
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DSET_LH(rq_b, 8, *iterHandle); /* iterhandle */
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DSET_HL(rq_b, 12, objectID);
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DSET_LH(rq_b, 16, dsiflags);
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DSET_LH(rq_b2, 0, ts->wholeSeconds);
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WSET_LH(rq_b2, 4, ts->replicaNum);
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WSET_LH(rq_b2, 6, ts->eventID);
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rq_frag[0].fragAddr.ro = rq_b;
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rq_frag[0].fragSize = 20;
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rq_frag[1].fragAddr.ro = NWDSBufRetrieve(nameb, &rq_frag[1].fragSize);
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rq_frag[2].fragAddr.ro = rq_b2;
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rq_frag[2].fragSize = 8;
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NWDSBufStartPut(buffer, DSV_LIST);
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NWDSBufSetDSIFlags(buffer, dsiflags);
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rp_frag[0].fragAddr.rw = rp_b;
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rp_frag[0].fragSize = 4;
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rp_frag[1].fragAddr.rw = NWDSBufPutPtrLen(buffer, &rp_frag[1].fragSize);
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err = NWCFragmentRequest(conn, DSV_LIST, 3, rq_frag, 2, rp_frag,
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NULL);
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if (err)
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return err;
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if (rp_frag[0].fragSize < 4)
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return ERR_INVALID_SERVER_RESPONSE;
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NWDSBufPutSkip(buffer, rp_frag[1].fragSize);
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NWDSBufFinishPut(buffer);
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*iterHandle = DVAL_LH(rp_b, 0);
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return err;
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}
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NWDSCCODE NWDSExtSyncList(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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const NWDSChar* className,
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const NWDSChar* subordinateName,
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nuint32* iterHandle,
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const TimeStamp_T* timeStamp,
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nuint onlyContainers,
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Buf_T* buffer
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) {
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NWDSCCODE err;
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NWCONN_HANDLE conn;
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NWObjectID objID;
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nuint32 lh;
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struct wrappedIterationHandle *ih = NULL;
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nuint32 qflags;
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nuint8 spare[(4 + MAX_DN_BYTES) * 2];
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Buf_T nameb;
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if (!buffer)
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return ERR_NULL_POINTER;
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qflags = onlyContainers ? 2 : 0;
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NWDSSetupBuf(&nameb, spare, sizeof(spare));
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if (subordinateName) {
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err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, subordinateName);
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} else {
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err = NWDSBufPutLE32(&nameb, 0);
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}
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if (err)
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return err;
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if (className) {
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err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, className);
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} else {
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err = NWDSBufPutLE32(&nameb, 0);
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}
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if (err)
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return err;
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if (*iterHandle == NO_MORE_ITERATIONS) {
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err = NWDSResolveName2(ctx, objectName, DS_RESOLVE_READABLE,
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&conn, &objID);
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if (err)
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return err;
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lh = NO_MORE_ITERATIONS;
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} else {
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ih = __NWDSIHLookup(*iterHandle, DSV_LIST);
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if (!ih)
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return ERR_INVALID_HANDLE;
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conn = ih->conn;
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lh = ih->iterHandle;
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objID = ih->objectID;
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}
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if (timeStamp) {
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err = __NWDSListV2(ctx, conn, objID, qflags, &lh,
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ctx->dck.dsi_flags, &nameb,
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timeStamp, buffer);
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} else {
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err = __NWDSListV1(ctx, conn, objID, qflags, &lh,
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ctx->dck.dsi_flags, &nameb,
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buffer);
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}
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if (ih) {
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return __NWDSIHUpdate(ih, err, lh, iterHandle);
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}
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return __NWDSIHCreate(err, conn, objID, lh, DSV_LIST, iterHandle);
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}
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static inline NWDSCCODE __NWDSListByClassAndName(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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const NWDSChar* className,
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const NWDSChar* subordinateName,
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nuint32* iterHandle,
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nuint onlyContainers,
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Buf_T* buffer) {
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return NWDSExtSyncList(ctx, objectName, className, subordinateName,
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iterHandle, NULL, onlyContainers, buffer);
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}
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NWDSCCODE NWDSGetCountByClassAndName(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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const NWDSChar* className,
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const NWDSChar* subordinateName,
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NWObjectCount* count
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) {
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NWDSCCODE err;
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NWCONN_HANDLE conn;
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NWObjectID objID;
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nuint32 iterHandle;
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nuint32 lcnt;
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Buf_T* buf;
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nuint8 spare[(4 + MAX_DN_BYTES) * 2];
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Buf_T nameb;
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if (!count)
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return ERR_NULL_POINTER;
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NWDSSetupBuf(&nameb, spare, sizeof(spare));
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if (subordinateName)
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err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, subordinateName);
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else
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err = NWDSBufPutLE32(&nameb, 0);
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if (err)
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return err;
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if (className)
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err = NWDSPutAttrVal_XX_STRING(ctx, &nameb, subordinateName);
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else
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err = NWDSBufPutLE32(&nameb, 0);
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if (err)
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return err;
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*count = 0;
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err = NWDSResolveName2(ctx, objectName, DS_RESOLVE_READABLE,
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&conn, &objID);
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if (err)
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return err;
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lcnt = 0;
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iterHandle = NO_MORE_ITERATIONS;
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err = NWDSAllocBuf(DEFAULT_MESSAGE_LEN, &buf);
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if (err)
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goto quit_handle;
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do {
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NWObjectCount cnt;
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NWDSRewindBuf(buf);
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err = __NWDSListV1(ctx, conn, objID, 0, &iterHandle, 0, &nameb,
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buf);
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if (err)
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goto quit;
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err = NWDSGetObjectCount(ctx, buf, &cnt);
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if (err)
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goto quit;
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lcnt += cnt;
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} while (iterHandle != NO_MORE_ITERATIONS);
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quit:;
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*count = lcnt;
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NWDSFreeBuf(buf);
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quit_handle:;
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NWCCCloseConn(conn);
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return err;
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}
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NWDSCCODE NWDSListByClassAndName(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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const NWDSChar* className,
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const NWDSChar* subordinateName,
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nuint32* iterHandle,
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Buf_T* buffer) {
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return __NWDSListByClassAndName(ctx, objectName, className,
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subordinateName, iterHandle, 0, buffer);
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}
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NWDSCCODE NWDSList(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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nuint32* iterHandle,
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Buf_T* buffer) {
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return NWDSListByClassAndName(ctx, objectName, NULL, NULL, iterHandle,
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buffer);
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}
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NWDSCCODE NWDSListContainers(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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nuint32* iterHandle,
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Buf_T* buffer) {
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return __NWDSListByClassAndName(ctx, objectName, NULL, NULL,
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iterHandle, 1, buffer);
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}
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