tcl_dbcursor.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:21k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1999-2001
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: tcl_dbcursor.c,v 11.51 2002/08/06 06:20:59 bostic Exp $";
- #endif /* not lint */
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <stdlib.h>
- #include <string.h>
- #include <tcl.h>
- #endif
- #include "db_int.h"
- #include "dbinc/tcl_db.h"
- /*
- * Prototypes for procedures defined later in this file:
- */
- static int tcl_DbcDup __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DBC *));
- static int tcl_DbcGet __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DBC *, int));
- static int tcl_DbcPut __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DBC *));
- /*
- * PUBLIC: int dbc_Cmd __P((ClientData, Tcl_Interp *, int, Tcl_Obj * CONST*));
- *
- * dbc_cmd --
- * Implements the cursor command.
- */
- int
- dbc_Cmd(clientData, interp, objc, objv)
- ClientData clientData; /* Cursor handle */
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- {
- static char *dbccmds[] = {
- #if CONFIG_TEST
- "pget",
- #endif
- "close",
- "del",
- "dup",
- "get",
- "put",
- NULL
- };
- enum dbccmds {
- #if CONFIG_TEST
- DBCPGET,
- #endif
- DBCCLOSE,
- DBCDELETE,
- DBCDUP,
- DBCGET,
- DBCPUT
- };
- DBC *dbc;
- DBTCL_INFO *dbip;
- int cmdindex, result, ret;
- Tcl_ResetResult(interp);
- dbc = (DBC *)clientData;
- dbip = _PtrToInfo((void *)dbc);
- result = TCL_OK;
- if (objc <= 1) {
- Tcl_WrongNumArgs(interp, 1, objv, "command cmdargs");
- return (TCL_ERROR);
- }
- if (dbc == NULL) {
- Tcl_SetResult(interp, "NULL dbc pointer", TCL_STATIC);
- return (TCL_ERROR);
- }
- if (dbip == NULL) {
- Tcl_SetResult(interp, "NULL dbc info pointer", TCL_STATIC);
- return (TCL_ERROR);
- }
- /*
- * Get the command name index from the object based on the berkdbcmds
- * defined above.
- */
- if (Tcl_GetIndexFromObj(interp, objv[1], dbccmds, "command",
- TCL_EXACT, &cmdindex) != TCL_OK)
- return (IS_HELP(objv[1]));
- switch ((enum dbccmds)cmdindex) {
- #if CONFIG_TEST
- case DBCPGET:
- result = tcl_DbcGet(interp, objc, objv, dbc, 1);
- break;
- #endif
- case DBCCLOSE:
- /*
- * No args for this. Error if there are some.
- */
- if (objc > 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- _debug_check();
- ret = dbc->c_close(dbc);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret),
- "dbc close");
- if (result == TCL_OK) {
- (void)Tcl_DeleteCommand(interp, dbip->i_name);
- _DeleteInfo(dbip);
- }
- break;
- case DBCDELETE:
- /*
- * No args for this. Error if there are some.
- */
- if (objc > 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- _debug_check();
- ret = dbc->c_del(dbc, 0);
- result = _ReturnSetup(interp, ret, DB_RETOK_DBCDEL(ret),
- "dbc delete");
- break;
- case DBCDUP:
- result = tcl_DbcDup(interp, objc, objv, dbc);
- break;
- case DBCGET:
- result = tcl_DbcGet(interp, objc, objv, dbc, 0);
- break;
- case DBCPUT:
- result = tcl_DbcPut(interp, objc, objv, dbc);
- break;
- }
- return (result);
- }
- /*
- * tcl_DbcPut --
- */
- static int
- tcl_DbcPut(interp, objc, objv, dbc)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DBC *dbc; /* Cursor pointer */
- {
- static char *dbcutopts[] = {
- #if CONFIG_TEST
- "-nodupdata",
- #endif
- "-after",
- "-before",
- "-current",
- "-keyfirst",
- "-keylast",
- "-partial",
- NULL
- };
- enum dbcutopts {
- #if CONFIG_TEST
- DBCPUT_NODUPDATA,
- #endif
- DBCPUT_AFTER,
- DBCPUT_BEFORE,
- DBCPUT_CURRENT,
- DBCPUT_KEYFIRST,
- DBCPUT_KEYLAST,
- DBCPUT_PART
- };
- DB *thisdbp;
- DBT key, data;
- DBTCL_INFO *dbcip, *dbip;
- DBTYPE type;
- Tcl_Obj **elemv, *res;
- void *dtmp, *ktmp;
- db_recno_t recno;
- u_int32_t flag;
- int elemc, freekey, freedata, i, optindex, result, ret;
- result = TCL_OK;
- flag = 0;
- freekey = freedata = 0;
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? ?key?");
- return (TCL_ERROR);
- }
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- /*
- * Get the command name index from the object based on the options
- * defined above.
- */
- i = 2;
- while (i < (objc - 1)) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbcutopts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- /*
- * Reset the result so we don't get
- * an errant error message if there is another error.
- */
- if (IS_HELP(objv[i]) == TCL_OK) {
- result = TCL_OK;
- goto out;
- }
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbcutopts)optindex) {
- #if CONFIG_TEST
- case DBCPUT_NODUPDATA:
- FLAG_CHECK(flag);
- flag = DB_NODUPDATA;
- break;
- #endif
- case DBCPUT_AFTER:
- FLAG_CHECK(flag);
- flag = DB_AFTER;
- break;
- case DBCPUT_BEFORE:
- FLAG_CHECK(flag);
- flag = DB_BEFORE;
- break;
- case DBCPUT_CURRENT:
- FLAG_CHECK(flag);
- flag = DB_CURRENT;
- break;
- case DBCPUT_KEYFIRST:
- FLAG_CHECK(flag);
- flag = DB_KEYFIRST;
- break;
- case DBCPUT_KEYLAST:
- FLAG_CHECK(flag);
- flag = DB_KEYLAST;
- break;
- case DBCPUT_PART:
- if (i > (objc - 2)) {
- Tcl_WrongNumArgs(interp, 2, objv,
- "?-partial {offset length}?");
- result = TCL_ERROR;
- break;
- }
- /*
- * Get sublist as {offset length}
- */
- result = Tcl_ListObjGetElements(interp, objv[i++],
- &elemc, &elemv);
- if (elemc != 2) {
- Tcl_SetResult(interp,
- "List must be {offset length}", TCL_STATIC);
- result = TCL_ERROR;
- break;
- }
- data.flags |= DB_DBT_PARTIAL;
- result = _GetUInt32(interp, elemv[0], &data.doff);
- if (result != TCL_OK)
- break;
- result = _GetUInt32(interp, elemv[1], &data.dlen);
- /*
- * NOTE: We don't check result here because all we'd
- * do is break anyway, and we are doing that. If you
- * add code here, you WILL need to add the check
- * for result. (See the check for save.doff, a few
- * lines above and copy that.)
- */
- }
- if (result != TCL_OK)
- break;
- }
- if (result != TCL_OK)
- goto out;
- /*
- * We need to determine if we are a recno database or not. If we are,
- * then key.data is a recno, not a string.
- */
- dbcip = _PtrToInfo(dbc);
- if (dbcip == NULL)
- type = DB_UNKNOWN;
- else {
- dbip = dbcip->i_parent;
- if (dbip == NULL) {
- Tcl_SetResult(interp, "Cursor without parent database",
- TCL_STATIC);
- result = TCL_ERROR;
- return (result);
- }
- thisdbp = dbip->i_dbp;
- (void)thisdbp->get_type(thisdbp, &type);
- }
- /*
- * When we get here, we better have:
- * 1 arg if -after, -before or -current
- * 2 args in all other cases
- */
- if (flag == DB_AFTER || flag == DB_BEFORE || flag == DB_CURRENT) {
- if (i != (objc - 1)) {
- Tcl_WrongNumArgs(interp, 2, objv,
- "?-args? data");
- result = TCL_ERROR;
- goto out;
- }
- /*
- * We want to get the key back, so we need to set
- * up the location to get it back in.
- */
- if (type == DB_RECNO || type == DB_QUEUE) {
- recno = 0;
- key.data = &recno;
- key.size = sizeof(db_recno_t);
- }
- } else {
- if (i != (objc - 2)) {
- Tcl_WrongNumArgs(interp, 2, objv,
- "?-args? key data");
- result = TCL_ERROR;
- goto out;
- }
- if (type == DB_RECNO || type == DB_QUEUE) {
- result = _GetUInt32(interp, objv[objc-2], &recno);
- if (result == TCL_OK) {
- key.data = &recno;
- key.size = sizeof(db_recno_t);
- } else
- return (result);
- } else {
- ret = _CopyObjBytes(interp, objv[objc-2], &ktmp,
- &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBCPUT(ret), "dbc put");
- return (result);
- }
- key.data = ktmp;
- }
- }
- ret = _CopyObjBytes(interp, objv[objc-1], &dtmp,
- &data.size, &freedata);
- data.data = dtmp;
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBCPUT(ret), "dbc put");
- goto out;
- }
- _debug_check();
- ret = dbc->c_put(dbc, &key, &data, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_DBCPUT(ret),
- "dbc put");
- if (ret == 0 &&
- (flag == DB_AFTER || flag == DB_BEFORE) && type == DB_RECNO) {
- res = Tcl_NewLongObj((long)*(db_recno_t *)key.data);
- Tcl_SetObjResult(interp, res);
- }
- out:
- if (freedata)
- (void)__os_free(NULL, dtmp);
- if (freekey)
- (void)__os_free(NULL, ktmp);
- return (result);
- }
- /*
- * tcl_dbc_get --
- */
- static int
- tcl_DbcGet(interp, objc, objv, dbc, ispget)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DBC *dbc; /* Cursor pointer */
- int ispget; /* 1 for pget, 0 for get */
- {
- static char *dbcgetopts[] = {
- #if CONFIG_TEST
- "-dirty",
- "-get_both_range",
- "-multi",
- "-multi_key",
- #endif
- "-current",
- "-first",
- "-get_both",
- "-get_recno",
- "-join_item",
- "-last",
- "-next",
- "-nextdup",
- "-nextnodup",
- "-partial",
- "-prev",
- "-prevnodup",
- "-rmw",
- "-set",
- "-set_range",
- "-set_recno",
- NULL
- };
- enum dbcgetopts {
- #if CONFIG_TEST
- DBCGET_DIRTY,
- DBCGET_BOTH_RANGE,
- DBCGET_MULTI,
- DBCGET_MULTI_KEY,
- #endif
- DBCGET_CURRENT,
- DBCGET_FIRST,
- DBCGET_BOTH,
- DBCGET_RECNO,
- DBCGET_JOIN,
- DBCGET_LAST,
- DBCGET_NEXT,
- DBCGET_NEXTDUP,
- DBCGET_NEXTNODUP,
- DBCGET_PART,
- DBCGET_PREV,
- DBCGET_PREVNODUP,
- DBCGET_RMW,
- DBCGET_SET,
- DBCGET_SETRANGE,
- DBCGET_SETRECNO
- };
- DB *thisdbp;
- DBT key, data, pdata;
- DBTCL_INFO *dbcip, *dbip;
- DBTYPE ptype, type;
- Tcl_Obj **elemv, *myobj, *retlist;
- void *dtmp, *ktmp;
- db_recno_t precno, recno;
- u_int32_t flag, op;
- int bufsize, elemc, freekey, freedata, i, optindex, result, ret;
- result = TCL_OK;
- flag = 0;
- freekey = freedata = 0;
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? ?key?");
- return (TCL_ERROR);
- }
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- /*
- * Get the command name index from the object based on the options
- * defined above.
- */
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbcgetopts,
- "option", TCL_EXACT, &optindex) != TCL_OK) {
- /*
- * Reset the result so we don't get
- * an errant error message if there is another error.
- */
- if (IS_HELP(objv[i]) == TCL_OK) {
- result = TCL_OK;
- goto out;
- }
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbcgetopts)optindex) {
- #if CONFIG_TEST
- case DBCGET_DIRTY:
- flag |= DB_DIRTY_READ;
- break;
- case DBCGET_BOTH_RANGE:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_GET_BOTH_RANGE;
- break;
- case DBCGET_MULTI:
- flag |= DB_MULTIPLE;
- result = Tcl_GetIntFromObj(interp, objv[i], &bufsize);
- if (result != TCL_OK)
- goto out;
- i++;
- break;
- case DBCGET_MULTI_KEY:
- flag |= DB_MULTIPLE_KEY;
- result = Tcl_GetIntFromObj(interp, objv[i], &bufsize);
- if (result != TCL_OK)
- goto out;
- i++;
- break;
- #endif
- case DBCGET_RMW:
- flag |= DB_RMW;
- break;
- case DBCGET_CURRENT:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_CURRENT;
- break;
- case DBCGET_FIRST:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_FIRST;
- break;
- case DBCGET_LAST:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_LAST;
- break;
- case DBCGET_NEXT:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_NEXT;
- break;
- case DBCGET_PREV:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_PREV;
- break;
- case DBCGET_PREVNODUP:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_PREV_NODUP;
- break;
- case DBCGET_NEXTNODUP:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_NEXT_NODUP;
- break;
- case DBCGET_NEXTDUP:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_NEXT_DUP;
- break;
- case DBCGET_BOTH:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_GET_BOTH;
- break;
- case DBCGET_RECNO:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_GET_RECNO;
- break;
- case DBCGET_JOIN:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_JOIN_ITEM;
- break;
- case DBCGET_SET:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_SET;
- break;
- case DBCGET_SETRANGE:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_SET_RANGE;
- break;
- case DBCGET_SETRECNO:
- FLAG_CHECK2(flag,
- DB_RMW|DB_MULTIPLE|DB_MULTIPLE_KEY|DB_DIRTY_READ);
- flag |= DB_SET_RECNO;
- break;
- case DBCGET_PART:
- if (i == objc) {
- Tcl_WrongNumArgs(interp, 2, objv,
- "?-partial {offset length}?");
- result = TCL_ERROR;
- break;
- }
- /*
- * Get sublist as {offset length}
- */
- result = Tcl_ListObjGetElements(interp, objv[i++],
- &elemc, &elemv);
- if (elemc != 2) {
- Tcl_SetResult(interp,
- "List must be {offset length}", TCL_STATIC);
- result = TCL_ERROR;
- break;
- }
- data.flags |= DB_DBT_PARTIAL;
- result = _GetUInt32(interp, elemv[0], &data.doff);
- if (result != TCL_OK)
- break;
- result = _GetUInt32(interp, elemv[1], &data.dlen);
- /*
- * NOTE: We don't check result here because all we'd
- * do is break anyway, and we are doing that. If you
- * add code here, you WILL need to add the check
- * for result. (See the check for save.doff, a few
- * lines above and copy that.)
- */
- break;
- }
- if (result != TCL_OK)
- break;
- }
- if (result != TCL_OK)
- goto out;
- /*
- * We need to determine if we are a recno database
- * or not. If we are, then key.data is a recno, not
- * a string.
- */
- dbcip = _PtrToInfo(dbc);
- if (dbcip == NULL) {
- type = DB_UNKNOWN;
- ptype = DB_UNKNOWN;
- } else {
- dbip = dbcip->i_parent;
- if (dbip == NULL) {
- Tcl_SetResult(interp, "Cursor without parent database",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- }
- thisdbp = dbip->i_dbp;
- (void)thisdbp->get_type(thisdbp, &type);
- if (ispget && thisdbp->s_primary != NULL)
- (void)thisdbp->
- s_primary->get_type(thisdbp->s_primary, &ptype);
- else
- ptype = DB_UNKNOWN;
- }
- /*
- * When we get here, we better have:
- * 2 args, key and data if GET_BOTH/GET_BOTH_RANGE was specified.
- * 1 arg if -set, -set_range or -set_recno
- * 0 in all other cases.
- */
- op = flag & DB_OPFLAGS_MASK;
- switch (op) {
- case DB_GET_BOTH:
- #if CONFIG_TEST
- case DB_GET_BOTH_RANGE:
- #endif
- if (i != (objc - 2)) {
- Tcl_WrongNumArgs(interp, 2, objv,
- "?-args? -get_both key data");
- result = TCL_ERROR;
- goto out;
- } else {
- if (type == DB_RECNO || type == DB_QUEUE) {
- result = _GetUInt32(
- interp, objv[objc-2], &recno);
- if (result == TCL_OK) {
- key.data = &recno;
- key.size = sizeof(db_recno_t);
- } else
- goto out;
- } else {
- /*
- * Some get calls (SET_*) can change the
- * key pointers. So, we need to store
- * the allocated key space in a tmp.
- */
- ret = _CopyObjBytes(interp, objv[objc-2],
- &ktmp, &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBCGET(ret), "dbc get");
- return (result);
- }
- key.data = ktmp;
- }
- if (ptype == DB_RECNO || ptype == DB_QUEUE) {
- result = _GetUInt32(
- interp, objv[objc-1], &precno);
- if (result == TCL_OK) {
- data.data = &precno;
- data.size = sizeof(db_recno_t);
- } else
- goto out;
- } else {
- ret = _CopyObjBytes(interp, objv[objc-1],
- &dtmp, &data.size, &freedata);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBCGET(ret), "dbc get");
- goto out;
- }
- data.data = dtmp;
- }
- }
- break;
- case DB_SET:
- case DB_SET_RANGE:
- case DB_SET_RECNO:
- if (i != (objc - 1)) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? key");
- result = TCL_ERROR;
- goto out;
- }
- if (flag & (DB_MULTIPLE|DB_MULTIPLE_KEY)) {
- (void)__os_malloc(NULL, bufsize, &data.data);
- data.ulen = bufsize;
- data.flags |= DB_DBT_USERMEM;
- } else
- data.flags |= DB_DBT_MALLOC;
- if (op == DB_SET_RECNO ||
- type == DB_RECNO || type == DB_QUEUE) {
- result = _GetUInt32(interp, objv[objc - 1], &recno);
- key.data = &recno;
- key.size = sizeof(db_recno_t);
- } else {
- /*
- * Some get calls (SET_*) can change the
- * key pointers. So, we need to store
- * the allocated key space in a tmp.
- */
- ret = _CopyObjBytes(interp, objv[objc-1],
- &ktmp, &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBCGET(ret), "dbc get");
- return (result);
- }
- key.data = ktmp;
- }
- break;
- default:
- if (i != objc) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args?");
- result = TCL_ERROR;
- goto out;
- }
- key.flags |= DB_DBT_MALLOC;
- if (flag & (DB_MULTIPLE|DB_MULTIPLE_KEY)) {
- (void)__os_malloc(NULL, bufsize, &data.data);
- data.ulen = bufsize;
- data.flags |= DB_DBT_USERMEM;
- } else
- data.flags |= DB_DBT_MALLOC;
- }
- _debug_check();
- memset(&pdata, 0, sizeof(DBT));
- if (ispget) {
- F_SET(&pdata, DB_DBT_MALLOC);
- ret = dbc->c_pget(dbc, &key, &data, &pdata, flag);
- } else
- ret = dbc->c_get(dbc, &key, &data, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_DBCGET(ret), "dbc get");
- if (result == TCL_ERROR)
- goto out;
- retlist = Tcl_NewListObj(0, NULL);
- if (ret == DB_NOTFOUND)
- goto out1;
- if (op == DB_GET_RECNO) {
- recno = *((db_recno_t *)data.data);
- myobj = Tcl_NewLongObj((long)recno);
- result = Tcl_ListObjAppendElement(interp, retlist, myobj);
- } else {
- if (flag & (DB_MULTIPLE|DB_MULTIPLE_KEY))
- result = _SetMultiList(interp,
- retlist, &key, &data, type, flag);
- else if ((type == DB_RECNO || type == DB_QUEUE) &&
- key.data != NULL) {
- if (ispget)
- result = _Set3DBTList(interp, retlist, &key, 1,
- &data,
- (ptype == DB_RECNO || ptype == DB_QUEUE),
- &pdata);
- else
- result = _SetListRecnoElem(interp, retlist,
- *(db_recno_t *)key.data,
- data.data, data.size);
- } else {
- if (ispget)
- result = _Set3DBTList(interp, retlist, &key, 0,
- &data,
- (ptype == DB_RECNO || ptype == DB_QUEUE),
- &pdata);
- else
- result = _SetListElem(interp, retlist,
- key.data, key.size, data.data, data.size);
- }
- }
- if (key.data != NULL && F_ISSET(&key, DB_DBT_MALLOC))
- __os_ufree(dbc->dbp->dbenv, key.data);
- if (data.data != NULL && F_ISSET(&data, DB_DBT_MALLOC))
- __os_ufree(dbc->dbp->dbenv, data.data);
- if (pdata.data != NULL && F_ISSET(&pdata, DB_DBT_MALLOC))
- __os_ufree(dbc->dbp->dbenv, pdata.data);
- out1:
- if (result == TCL_OK)
- Tcl_SetObjResult(interp, retlist);
- out:
- if (data.data != NULL && flag & (DB_MULTIPLE|DB_MULTIPLE_KEY))
- __os_free(dbc->dbp->dbenv, data.data);
- if (freedata)
- (void)__os_free(NULL, dtmp);
- if (freekey)
- (void)__os_free(NULL, ktmp);
- return (result);
- }
- /*
- * tcl_DbcDup --
- */
- static int
- tcl_DbcDup(interp, objc, objv, dbc)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DBC *dbc; /* Cursor pointer */
- {
- static char *dbcdupopts[] = {
- "-position",
- NULL
- };
- enum dbcdupopts {
- DBCDUP_POS
- };
- DBC *newdbc;
- DBTCL_INFO *dbcip, *newdbcip, *dbip;
- Tcl_Obj *res;
- u_int32_t flag;
- int i, optindex, result, ret;
- char newname[MSG_SIZE];
- result = TCL_OK;
- flag = 0;
- res = NULL;
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args?");
- return (TCL_ERROR);
- }
- /*
- * Get the command name index from the object based on the options
- * defined above.
- */
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbcdupopts,
- "option", TCL_EXACT, &optindex) != TCL_OK) {
- /*
- * Reset the result so we don't get
- * an errant error message if there is another error.
- */
- if (IS_HELP(objv[i]) == TCL_OK) {
- result = TCL_OK;
- goto out;
- }
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbcdupopts)optindex) {
- case DBCDUP_POS:
- flag = DB_POSITION;
- break;
- }
- if (result != TCL_OK)
- break;
- }
- if (result != TCL_OK)
- goto out;
- /*
- * We need to determine if we are a recno database
- * or not. If we are, then key.data is a recno, not
- * a string.
- */
- dbcip = _PtrToInfo(dbc);
- if (dbcip == NULL) {
- Tcl_SetResult(interp, "Cursor without info structure",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- } else {
- dbip = dbcip->i_parent;
- if (dbip == NULL) {
- Tcl_SetResult(interp, "Cursor without parent database",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- }
- }
- /*
- * Now duplicate the cursor. If successful, we need to create
- * a new cursor command.
- */
- snprintf(newname, sizeof(newname),
- "%s.c%d", dbip->i_name, dbip->i_dbdbcid);
- newdbcip = _NewInfo(interp, NULL, newname, I_DBC);
- if (newdbcip != NULL) {
- ret = dbc->c_dup(dbc, &newdbc, flag);
- if (ret == 0) {
- dbip->i_dbdbcid++;
- newdbcip->i_parent = dbip;
- Tcl_CreateObjCommand(interp, newname,
- (Tcl_ObjCmdProc *)dbc_Cmd,
- (ClientData)newdbc, NULL);
- res = Tcl_NewStringObj(newname, strlen(newname));
- _SetInfoData(newdbcip, newdbc);
- Tcl_SetObjResult(interp, res);
- } else {
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret),
- "db dup");
- _DeleteInfo(newdbcip);
- }
- } else {
- Tcl_SetResult(interp, "Could not set up info", TCL_STATIC);
- result = TCL_ERROR;
- }
- out:
- return (result);
- }