tcl_db.c
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上传日期:2022-05-23
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文件大小:57k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1999-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: tcl_db.c,v 11.107 2002/08/06 06:20:31 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/db_page.h"
- #include "dbinc/db_am.h"
- #include "dbinc/tcl_db.h"
- /*
- * Prototypes for procedures defined later in this file:
- */
- static int tcl_DbAssociate __P((Tcl_Interp *,
- int, Tcl_Obj * CONST*, DB *));
- static int tcl_DbClose __P((Tcl_Interp *,
- int, Tcl_Obj * CONST*, DB *, DBTCL_INFO *));
- static int tcl_DbDelete __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *));
- static int tcl_DbGet __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *, int));
- static int tcl_DbKeyRange __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *));
- static int tcl_DbPut __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *));
- static int tcl_DbStat __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *));
- static int tcl_DbTruncate __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *));
- static int tcl_DbCursor __P((Tcl_Interp *,
- int, Tcl_Obj * CONST*, DB *, DBC **));
- static int tcl_DbJoin __P((Tcl_Interp *,
- int, Tcl_Obj * CONST*, DB *, DBC **));
- static int tcl_DbGetjoin __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *));
- static int tcl_DbCount __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB *));
- static int tcl_second_call __P((DB *, const DBT *, const DBT *, DBT *));
- /*
- * _DbInfoDelete --
- *
- * PUBLIC: void _DbInfoDelete __P((Tcl_Interp *, DBTCL_INFO *));
- */
- void
- _DbInfoDelete(interp, dbip)
- Tcl_Interp *interp;
- DBTCL_INFO *dbip;
- {
- DBTCL_INFO *nextp, *p;
- /*
- * First we have to close any open cursors. Then we close
- * our db.
- */
- for (p = LIST_FIRST(&__db_infohead); p != NULL; p = nextp) {
- nextp = LIST_NEXT(p, entries);
- /*
- * Check if this is a cursor info structure and if
- * it is, if it belongs to this DB. If so, remove
- * its commands and info structure.
- */
- if (p->i_parent == dbip && p->i_type == I_DBC) {
- (void)Tcl_DeleteCommand(interp, p->i_name);
- _DeleteInfo(p);
- }
- }
- (void)Tcl_DeleteCommand(interp, dbip->i_name);
- _DeleteInfo(dbip);
- }
- /*
- *
- * PUBLIC: int db_Cmd __P((ClientData, Tcl_Interp *, int, Tcl_Obj * CONST*));
- *
- * db_Cmd --
- * Implements the "db" widget.
- */
- int
- db_Cmd(clientData, interp, objc, objv)
- ClientData clientData; /* DB handle */
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- {
- static char *dbcmds[] = {
- #if CONFIG_TEST
- "keyrange",
- "pget",
- "rpcid",
- "test",
- #endif
- "associate",
- "close",
- "count",
- "cursor",
- "del",
- "get",
- "get_join",
- "get_type",
- "is_byteswapped",
- "join",
- "put",
- "stat",
- "sync",
- "truncate",
- NULL
- };
- enum dbcmds {
- #if CONFIG_TEST
- DBKEYRANGE,
- DBPGET,
- DBRPCID,
- DBTEST,
- #endif
- DBASSOCIATE,
- DBCLOSE,
- DBCOUNT,
- DBCURSOR,
- DBDELETE,
- DBGET,
- DBGETJOIN,
- DBGETTYPE,
- DBSWAPPED,
- DBJOIN,
- DBPUT,
- DBSTAT,
- DBSYNC,
- DBTRUNCATE
- };
- DB *dbp;
- DBC *dbc;
- DBTCL_INFO *dbip;
- DBTCL_INFO *ip;
- DBTYPE type;
- Tcl_Obj *res;
- int cmdindex, isswapped, result, ret;
- char newname[MSG_SIZE];
- Tcl_ResetResult(interp);
- dbp = (DB *)clientData;
- dbip = _PtrToInfo((void *)dbp);
- memset(newname, 0, MSG_SIZE);
- result = TCL_OK;
- if (objc <= 1) {
- Tcl_WrongNumArgs(interp, 1, objv, "command cmdargs");
- return (TCL_ERROR);
- }
- if (dbp == NULL) {
- Tcl_SetResult(interp, "NULL db pointer", TCL_STATIC);
- return (TCL_ERROR);
- }
- if (dbip == NULL) {
- Tcl_SetResult(interp, "NULL db info pointer", TCL_STATIC);
- return (TCL_ERROR);
- }
- /*
- * Get the command name index from the object based on the dbcmds
- * defined above.
- */
- if (Tcl_GetIndexFromObj(interp,
- objv[1], dbcmds, "command", TCL_EXACT, &cmdindex) != TCL_OK)
- return (IS_HELP(objv[1]));
- res = NULL;
- switch ((enum dbcmds)cmdindex) {
- #if CONFIG_TEST
- case DBKEYRANGE:
- result = tcl_DbKeyRange(interp, objc, objv, dbp);
- break;
- case DBPGET:
- result = tcl_DbGet(interp, objc, objv, dbp, 1);
- break;
- case DBRPCID:
- /*
- * No args for this. Error if there are some.
- */
- if (objc > 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- /*
- * !!! Retrieve the client ID from the dbp handle directly.
- * This is for testing purposes only. It is dbp-private data.
- */
- res = Tcl_NewLongObj(dbp->cl_id);
- break;
- case DBTEST:
- result = tcl_EnvTest(interp, objc, objv, dbp->dbenv);
- break;
- #endif
- case DBASSOCIATE:
- result = tcl_DbAssociate(interp, objc, objv, dbp);
- break;
- case DBCLOSE:
- result = tcl_DbClose(interp, objc, objv, dbp, dbip);
- break;
- case DBDELETE:
- result = tcl_DbDelete(interp, objc, objv, dbp);
- break;
- case DBGET:
- result = tcl_DbGet(interp, objc, objv, dbp, 0);
- break;
- case DBPUT:
- result = tcl_DbPut(interp, objc, objv, dbp);
- break;
- case DBCOUNT:
- result = tcl_DbCount(interp, objc, objv, dbp);
- break;
- case DBSWAPPED:
- /*
- * No args for this. Error if there are some.
- */
- if (objc > 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- _debug_check();
- ret = dbp->get_byteswapped(dbp, &isswapped);
- res = Tcl_NewIntObj(isswapped);
- break;
- case DBGETTYPE:
- /*
- * No args for this. Error if there are some.
- */
- if (objc > 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- _debug_check();
- ret = dbp->get_type(dbp, &type);
- if (type == DB_BTREE)
- res = Tcl_NewStringObj("btree", strlen("btree"));
- else if (type == DB_HASH)
- res = Tcl_NewStringObj("hash", strlen("hash"));
- else if (type == DB_RECNO)
- res = Tcl_NewStringObj("recno", strlen("recno"));
- else if (type == DB_QUEUE)
- res = Tcl_NewStringObj("queue", strlen("queue"));
- else {
- Tcl_SetResult(interp,
- "db gettype: Returned unknown typen", TCL_STATIC);
- result = TCL_ERROR;
- }
- break;
- case DBSTAT:
- result = tcl_DbStat(interp, objc, objv, dbp);
- break;
- case DBSYNC:
- /*
- * No args for this. Error if there are some.
- */
- if (objc > 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- _debug_check();
- ret = dbp->sync(dbp, 0);
- res = Tcl_NewIntObj(ret);
- if (ret != 0) {
- Tcl_SetObjResult(interp, res);
- result = TCL_ERROR;
- }
- break;
- case DBCURSOR:
- snprintf(newname, sizeof(newname),
- "%s.c%d", dbip->i_name, dbip->i_dbdbcid);
- ip = _NewInfo(interp, NULL, newname, I_DBC);
- if (ip != NULL) {
- result = tcl_DbCursor(interp, objc, objv, dbp, &dbc);
- if (result == TCL_OK) {
- dbip->i_dbdbcid++;
- ip->i_parent = dbip;
- Tcl_CreateObjCommand(interp, newname,
- (Tcl_ObjCmdProc *)dbc_Cmd,
- (ClientData)dbc, NULL);
- res =
- Tcl_NewStringObj(newname, strlen(newname));
- _SetInfoData(ip, dbc);
- } else
- _DeleteInfo(ip);
- } else {
- Tcl_SetResult(interp,
- "Could not set up info", TCL_STATIC);
- result = TCL_ERROR;
- }
- break;
- case DBJOIN:
- snprintf(newname, sizeof(newname),
- "%s.c%d", dbip->i_name, dbip->i_dbdbcid);
- ip = _NewInfo(interp, NULL, newname, I_DBC);
- if (ip != NULL) {
- result = tcl_DbJoin(interp, objc, objv, dbp, &dbc);
- if (result == TCL_OK) {
- dbip->i_dbdbcid++;
- ip->i_parent = dbip;
- Tcl_CreateObjCommand(interp, newname,
- (Tcl_ObjCmdProc *)dbc_Cmd,
- (ClientData)dbc, NULL);
- res =
- Tcl_NewStringObj(newname, strlen(newname));
- _SetInfoData(ip, dbc);
- } else
- _DeleteInfo(ip);
- } else {
- Tcl_SetResult(interp,
- "Could not set up info", TCL_STATIC);
- result = TCL_ERROR;
- }
- break;
- case DBGETJOIN:
- result = tcl_DbGetjoin(interp, objc, objv, dbp);
- break;
- case DBTRUNCATE:
- result = tcl_DbTruncate(interp, objc, objv, dbp);
- break;
- }
- /*
- * Only set result if we have a res. Otherwise, lower
- * functions have already done so.
- */
- if (result == TCL_OK && res)
- Tcl_SetObjResult(interp, res);
- return (result);
- }
- /*
- * tcl_db_stat --
- */
- static int
- tcl_DbStat(interp, objc, objv, dbp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- {
- DB_BTREE_STAT *bsp;
- DB_HASH_STAT *hsp;
- DB_QUEUE_STAT *qsp;
- void *sp;
- Tcl_Obj *res, *flaglist, *myobjv[2];
- DBTYPE type;
- u_int32_t flag;
- int result, ret;
- char *arg;
- result = TCL_OK;
- flag = 0;
- if (objc > 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-faststat?");
- return (TCL_ERROR);
- }
- if (objc == 3) {
- arg = Tcl_GetStringFromObj(objv[2], NULL);
- if (strcmp(arg, "-faststat") == 0)
- flag = DB_FAST_STAT;
- else {
- Tcl_SetResult(interp,
- "db stat: unknown arg", TCL_STATIC);
- return (TCL_ERROR);
- }
- }
- _debug_check();
- ret = dbp->stat(dbp, &sp, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "db stat");
- if (result == TCL_ERROR)
- return (result);
- (void)dbp->get_type(dbp, &type);
- /*
- * Have our stats, now construct the name value
- * list pairs and free up the memory.
- */
- res = Tcl_NewObj();
- /*
- * MAKE_STAT_LIST assumes 'res' and 'error' label.
- */
- if (type == DB_HASH) {
- hsp = (DB_HASH_STAT *)sp;
- MAKE_STAT_LIST("Magic", hsp->hash_magic);
- MAKE_STAT_LIST("Version", hsp->hash_version);
- MAKE_STAT_LIST("Page size", hsp->hash_pagesize);
- MAKE_STAT_LIST("Number of keys", hsp->hash_nkeys);
- MAKE_STAT_LIST("Number of records", hsp->hash_ndata);
- MAKE_STAT_LIST("Fill factor", hsp->hash_ffactor);
- MAKE_STAT_LIST("Buckets", hsp->hash_buckets);
- if (flag != DB_FAST_STAT) {
- MAKE_STAT_LIST("Free pages", hsp->hash_free);
- MAKE_STAT_LIST("Bytes free", hsp->hash_bfree);
- MAKE_STAT_LIST("Number of big pages",
- hsp->hash_bigpages);
- MAKE_STAT_LIST("Big pages bytes free",
- hsp->hash_big_bfree);
- MAKE_STAT_LIST("Overflow pages", hsp->hash_overflows);
- MAKE_STAT_LIST("Overflow bytes free",
- hsp->hash_ovfl_free);
- MAKE_STAT_LIST("Duplicate pages", hsp->hash_dup);
- MAKE_STAT_LIST("Duplicate pages bytes free",
- hsp->hash_dup_free);
- }
- } else if (type == DB_QUEUE) {
- qsp = (DB_QUEUE_STAT *)sp;
- MAKE_STAT_LIST("Magic", qsp->qs_magic);
- MAKE_STAT_LIST("Version", qsp->qs_version);
- MAKE_STAT_LIST("Page size", qsp->qs_pagesize);
- MAKE_STAT_LIST("Extent size", qsp->qs_extentsize);
- MAKE_STAT_LIST("Number of records", qsp->qs_nkeys);
- MAKE_STAT_LIST("Record length", qsp->qs_re_len);
- MAKE_STAT_LIST("Record pad", qsp->qs_re_pad);
- MAKE_STAT_LIST("First record number", qsp->qs_first_recno);
- MAKE_STAT_LIST("Last record number", qsp->qs_cur_recno);
- if (flag != DB_FAST_STAT) {
- MAKE_STAT_LIST("Number of pages", qsp->qs_pages);
- MAKE_STAT_LIST("Bytes free", qsp->qs_pgfree);
- }
- } else { /* BTREE and RECNO are same stats */
- bsp = (DB_BTREE_STAT *)sp;
- MAKE_STAT_LIST("Magic", bsp->bt_magic);
- MAKE_STAT_LIST("Version", bsp->bt_version);
- MAKE_STAT_LIST("Number of keys", bsp->bt_nkeys);
- MAKE_STAT_LIST("Number of records", bsp->bt_ndata);
- MAKE_STAT_LIST("Minimum keys per page", bsp->bt_minkey);
- MAKE_STAT_LIST("Fixed record length", bsp->bt_re_len);
- MAKE_STAT_LIST("Record pad", bsp->bt_re_pad);
- MAKE_STAT_LIST("Page size", bsp->bt_pagesize);
- if (flag != DB_FAST_STAT) {
- MAKE_STAT_LIST("Levels", bsp->bt_levels);
- MAKE_STAT_LIST("Internal pages", bsp->bt_int_pg);
- MAKE_STAT_LIST("Leaf pages", bsp->bt_leaf_pg);
- MAKE_STAT_LIST("Duplicate pages", bsp->bt_dup_pg);
- MAKE_STAT_LIST("Overflow pages", bsp->bt_over_pg);
- MAKE_STAT_LIST("Pages on freelist", bsp->bt_free);
- MAKE_STAT_LIST("Internal pages bytes free",
- bsp->bt_int_pgfree);
- MAKE_STAT_LIST("Leaf pages bytes free",
- bsp->bt_leaf_pgfree);
- MAKE_STAT_LIST("Duplicate pages bytes free",
- bsp->bt_dup_pgfree);
- MAKE_STAT_LIST("Bytes free in overflow pages",
- bsp->bt_over_pgfree);
- }
- }
- /*
- * Construct a {name {flag1 flag2 ... flagN}} list for the
- * dbp flags. These aren't access-method dependent, but they
- * include all the interesting flags, and the integer value
- * isn't useful from Tcl--return the strings instead.
- */
- myobjv[0] = Tcl_NewStringObj("Flags", strlen("Flags"));
- myobjv[1] = _GetFlagsList(interp, dbp->flags, __db_inmemdbflags);
- flaglist = Tcl_NewListObj(2, myobjv);
- if (flaglist == NULL) {
- result = TCL_ERROR;
- goto error;
- }
- if ((result =
- Tcl_ListObjAppendElement(interp, res, flaglist)) != TCL_OK)
- goto error;
- Tcl_SetObjResult(interp, res);
- error:
- free(sp);
- return (result);
- }
- /*
- * tcl_db_close --
- */
- static int
- tcl_DbClose(interp, objc, objv, dbp, dbip)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- DBTCL_INFO *dbip; /* Info pointer */
- {
- static char *dbclose[] = {
- "-nosync", "--", NULL
- };
- enum dbclose {
- TCL_DBCLOSE_NOSYNC,
- TCL_DBCLOSE_ENDARG
- };
- u_int32_t flag;
- int endarg, i, optindex, result, ret;
- char *arg;
- result = TCL_OK;
- endarg = 0;
- flag = 0;
- if (objc > 4) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-nosync?");
- return (TCL_ERROR);
- }
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbclose,
- "option", TCL_EXACT, &optindex) != TCL_OK) {
- arg = Tcl_GetStringFromObj(objv[i], NULL);
- if (arg[0] == '-')
- return (IS_HELP(objv[i]));
- else
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbclose)optindex) {
- case TCL_DBCLOSE_NOSYNC:
- flag = DB_NOSYNC;
- break;
- case TCL_DBCLOSE_ENDARG:
- endarg = 1;
- break;
- }
- /*
- * If, at any time, parsing the args we get an error,
- * bail out and return.
- */
- if (result != TCL_OK)
- return (result);
- if (endarg)
- break;
- }
- _DbInfoDelete(interp, dbip);
- _debug_check();
- /* Paranoia. */
- dbp->api_internal = NULL;
- ret = (dbp)->close(dbp, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "db close");
- return (result);
- }
- /*
- * tcl_db_put --
- */
- static int
- tcl_DbPut(interp, objc, objv, dbp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- {
- static char *dbputopts[] = {
- #if CONFIG_TEST
- "-nodupdata",
- #endif
- "-append",
- "-auto_commit",
- "-nooverwrite",
- "-partial",
- "-txn",
- NULL
- };
- enum dbputopts {
- #if CONFIG_TEST
- DBGET_NODUPDATA,
- #endif
- DBPUT_APPEND,
- DBPUT_AUTO_COMMIT,
- DBPUT_NOOVER,
- DBPUT_PART,
- DBPUT_TXN
- };
- static char *dbputapp[] = {
- "-append", NULL
- };
- enum dbputapp { DBPUT_APPEND0 };
- DBT key, data;
- DBTYPE type;
- DB_TXN *txn;
- Tcl_Obj **elemv, *res;
- void *dtmp, *ktmp;
- db_recno_t recno;
- u_int32_t flag;
- int auto_commit, elemc, end, freekey, freedata;
- int i, optindex, result, ret;
- char *arg, msg[MSG_SIZE];
- txn = NULL;
- result = TCL_OK;
- flag = 0;
- if (objc <= 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? key data");
- return (TCL_ERROR);
- }
- freekey = freedata = 0;
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- /*
- * If it is a QUEUE or RECNO database, the key is a record number
- * and must be setup up to contain a db_recno_t. Otherwise the
- * key is a "string".
- */
- (void)dbp->get_type(dbp, &type);
- /*
- * We need to determine where the end of required args are. If we
- * are using a QUEUE/RECNO db and -append, then there is just one
- * req arg (data). Otherwise there are two (key data).
- *
- * We preparse the list to determine this since we need to know
- * to properly check # of args for other options below.
- */
- end = objc - 2;
- if (type == DB_QUEUE || type == DB_RECNO) {
- i = 2;
- while (i < objc - 1) {
- if (Tcl_GetIndexFromObj(interp, objv[i++], dbputapp,
- "option", TCL_EXACT, &optindex) != TCL_OK)
- continue;
- switch ((enum dbputapp)optindex) {
- case DBPUT_APPEND0:
- end = objc - 1;
- break;
- }
- }
- }
- Tcl_ResetResult(interp);
- /*
- * Get the command name index from the object based on the options
- * defined above.
- */
- i = 2;
- auto_commit = 0;
- while (i < end) {
- if (Tcl_GetIndexFromObj(interp, objv[i],
- dbputopts, "option", TCL_EXACT, &optindex) != TCL_OK)
- return (IS_HELP(objv[i]));
- i++;
- switch ((enum dbputopts)optindex) {
- #if CONFIG_TEST
- case DBGET_NODUPDATA:
- FLAG_CHECK(flag);
- flag = DB_NODUPDATA;
- break;
- #endif
- case DBPUT_TXN:
- if (i > (end - 1)) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id?");
- result = TCL_ERROR;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "Put: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- case DBPUT_AUTO_COMMIT:
- auto_commit = 1;
- break;
- case DBPUT_APPEND:
- FLAG_CHECK(flag);
- flag = DB_APPEND;
- break;
- case DBPUT_NOOVER:
- FLAG_CHECK(flag);
- flag = DB_NOOVERWRITE;
- break;
- case DBPUT_PART:
- if (i > (end - 1)) {
- 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 (auto_commit)
- flag |= DB_AUTO_COMMIT;
- if (result == TCL_ERROR)
- return (result);
- /*
- * If we are a recno db and we are NOT using append, then the 2nd
- * last arg is the key.
- */
- if (type == DB_QUEUE || type == DB_RECNO) {
- key.data = &recno;
- key.ulen = key.size = sizeof(db_recno_t);
- key.flags = DB_DBT_USERMEM;
- if (flag == DB_APPEND)
- recno = 0;
- else {
- result = _GetUInt32(interp, objv[objc-2], &recno);
- if (result != TCL_OK)
- return (result);
- }
- } else {
- ret = _CopyObjBytes(interp, objv[objc-2], &ktmp,
- &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBPUT(ret), "db put");
- return (result);
- }
- key.data = ktmp;
- }
- ret = _CopyObjBytes(interp, objv[objc-1], &dtmp,
- &data.size, &freedata);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBPUT(ret), "db put");
- goto out;
- }
- data.data = dtmp;
- _debug_check();
- ret = dbp->put(dbp, txn, &key, &data, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_DBPUT(ret), "db put");
- if (ret == 0 &&
- (type == DB_RECNO || type == DB_QUEUE) && flag == DB_APPEND) {
- res = Tcl_NewLongObj((long)recno);
- Tcl_SetObjResult(interp, res);
- }
- out:
- if (freedata)
- (void)__os_free(dbp->dbenv, dtmp);
- if (freekey)
- (void)__os_free(dbp->dbenv, ktmp);
- return (result);
- }
- /*
- * tcl_db_get --
- */
- static int
- tcl_DbGet(interp, objc, objv, dbp, ispget)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- int ispget; /* 1 for pget, 0 for get */
- {
- static char *dbgetopts[] = {
- #if CONFIG_TEST
- "-dirty",
- "-multi",
- #endif
- "-consume",
- "-consume_wait",
- "-get_both",
- "-glob",
- "-partial",
- "-recno",
- "-rmw",
- "-txn",
- "--",
- NULL
- };
- enum dbgetopts {
- #if CONFIG_TEST
- DBGET_DIRTY,
- DBGET_MULTI,
- #endif
- DBGET_CONSUME,
- DBGET_CONSUME_WAIT,
- DBGET_BOTH,
- DBGET_GLOB,
- DBGET_PART,
- DBGET_RECNO,
- DBGET_RMW,
- DBGET_TXN,
- DBGET_ENDARG
- };
- DBC *dbc;
- DBT key, pkey, data, save;
- DBTYPE type;
- DB_TXN *txn;
- Tcl_Obj **elemv, *retlist;
- void *dtmp, *ktmp;
- u_int32_t flag, cflag, isdup, mflag, rmw;
- int bufsize, elemc, end, endarg, freekey, freedata, i;
- int optindex, result, ret, useglob, useprecno, userecno;
- char *arg, *pattern, *prefix, msg[MSG_SIZE];
- db_recno_t precno, recno;
- result = TCL_OK;
- freekey = freedata = 0;
- cflag = endarg = flag = mflag = rmw = 0;
- useglob = userecno = useprecno = 0;
- txn = NULL;
- pattern = prefix = NULL;
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? key");
- return (TCL_ERROR);
- }
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- memset(&save, 0, sizeof(save));
- /* For the primary key in a pget call. */
- memset(&pkey, 0, sizeof(pkey));
- /*
- * Get the command name index from the object based on the options
- * defined above.
- */
- i = 2;
- (void)dbp->get_type(dbp, &type);
- end = objc;
- while (i < end) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbgetopts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- arg = Tcl_GetStringFromObj(objv[i], NULL);
- if (arg[0] == '-') {
- result = IS_HELP(objv[i]);
- goto out;
- } else
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbgetopts)optindex) {
- #if CONFIG_TEST
- case DBGET_DIRTY:
- rmw |= DB_DIRTY_READ;
- break;
- case DBGET_MULTI:
- mflag |= DB_MULTIPLE;
- result = Tcl_GetIntFromObj(interp, objv[i], &bufsize);
- if (result != TCL_OK)
- goto out;
- i++;
- break;
- #endif
- case DBGET_BOTH:
- /*
- * Change 'end' and make sure we aren't already past
- * the new end.
- */
- if (i > objc - 2) {
- Tcl_WrongNumArgs(interp, 2, objv,
- "?-get_both key data?");
- result = TCL_ERROR;
- break;
- }
- end = objc - 2;
- FLAG_CHECK(flag);
- flag = DB_GET_BOTH;
- break;
- case DBGET_TXN:
- if (i >= end) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id?");
- result = TCL_ERROR;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "Get: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- case DBGET_GLOB:
- useglob = 1;
- end = objc - 1;
- break;
- case DBGET_CONSUME:
- FLAG_CHECK(flag);
- flag = DB_CONSUME;
- break;
- case DBGET_CONSUME_WAIT:
- FLAG_CHECK(flag);
- flag = DB_CONSUME_WAIT;
- break;
- case DBGET_RECNO:
- end = objc - 1;
- userecno = 1;
- if (type != DB_RECNO && type != DB_QUEUE) {
- FLAG_CHECK(flag);
- flag = DB_SET_RECNO;
- }
- break;
- case DBGET_RMW:
- rmw |= DB_RMW;
- break;
- case DBGET_PART:
- end = objc - 1;
- if (i == end) {
- 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;
- }
- save.flags = DB_DBT_PARTIAL;
- result = _GetUInt32(interp, elemv[0], &save.doff);
- if (result != TCL_OK)
- break;
- result = _GetUInt32(interp, elemv[1], &save.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;
- case DBGET_ENDARG:
- endarg = 1;
- break;
- } /* switch */
- if (result != TCL_OK)
- break;
- if (endarg)
- break;
- }
- if (result != TCL_OK)
- goto out;
- if (type == DB_RECNO || type == DB_QUEUE)
- userecno = 1;
- /*
- * Check args we have left versus the flags we were given.
- * We might have 0, 1 or 2 left. If we have 0, it must
- * be DB_CONSUME*, if 2, then DB_GET_BOTH, all others should
- * be 1.
- */
- if (((flag == DB_CONSUME || flag == DB_CONSUME_WAIT) && i != objc) ||
- (flag == DB_GET_BOTH && i != objc - 2)) {
- Tcl_SetResult(interp,
- "Wrong number of key/data given based on flags specifiedn",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- } else if (flag == 0 && i != objc - 1) {
- Tcl_SetResult(interp,
- "Wrong number of key/data givenn", TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- }
- /*
- * XXX
- * We technically shouldn't be looking inside the dbp like this,
- * but this is the only way to figure out whether the primary
- * key should also be a recno.
- */
- if (ispget) {
- if (dbp->s_primary != NULL &&
- (dbp->s_primary->type == DB_RECNO ||
- dbp->s_primary->type == DB_QUEUE))
- useprecno = 1;
- }
- /*
- * Check for illegal combos of options.
- */
- if (useglob && (userecno || flag == DB_SET_RECNO ||
- type == DB_RECNO || type == DB_QUEUE)) {
- Tcl_SetResult(interp,
- "Cannot use -glob and record numbers.n",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- }
- if (useglob && flag == DB_GET_BOTH) {
- Tcl_SetResult(interp,
- "Only one of -glob or -get_both can be specified.n",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- }
- if (useglob)
- pattern = Tcl_GetStringFromObj(objv[objc - 1], NULL);
- /*
- * This is the list we return
- */
- retlist = Tcl_NewListObj(0, NULL);
- save.flags |= DB_DBT_MALLOC;
- /*
- * isdup is used to know if we support duplicates. If not, we
- * can just do a db->get call and avoid using cursors.
- * XXX
- * When there is a db->get_flags method, it should be used.
- * isdup = dbp->get_flags(dbp) & DB_DUP;
- * For now we illegally peek.
- * XXX
- */
- isdup = dbp->flags & DB_AM_DUP;
- /*
- * If the database doesn't support duplicates or we're performing
- * ops that don't require returning multiple items, use DB->get
- * instead of a cursor operation.
- */
- if (pattern == NULL && (isdup == 0 || mflag != 0 ||
- flag == DB_SET_RECNO || flag == DB_GET_BOTH ||
- flag == DB_CONSUME || flag == DB_CONSUME_WAIT)) {
- if (flag == DB_GET_BOTH) {
- if (userecno) {
- 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_DBGET(ret), "db get");
- goto out;
- }
- key.data = ktmp;
- }
- /*
- * Already checked args above. Fill in key and save.
- * Save is used in the dbp->get call below to fill in
- * data.
- *
- * If the "data" here is really a primary key--that
- * is, if we're in a pget--and that primary key
- * is a recno, treat it appropriately as an int.
- */
- if (useprecno) {
- result = _GetUInt32(interp,
- objv[objc - 1], &precno);
- if (result == TCL_OK) {
- save.data = &precno;
- save.size = sizeof(db_recno_t);
- } else
- goto out;
- } else {
- ret = _CopyObjBytes(interp, objv[objc-1],
- &dtmp, &save.size, &freedata);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBGET(ret), "db get");
- goto out;
- }
- save.data = dtmp;
- }
- } else if (flag != DB_CONSUME && flag != DB_CONSUME_WAIT) {
- if (userecno) {
- result = _GetUInt32(
- interp, objv[(objc - 1)], &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-1],
- &ktmp, &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBGET(ret), "db get");
- goto out;
- }
- key.data = ktmp;
- }
- if (mflag & DB_MULTIPLE) {
- if ((ret = __os_malloc(dbp->dbenv,
- bufsize, &save.data)) != 0) {
- Tcl_SetResult(interp,
- db_strerror(ret), TCL_STATIC);
- goto out;
- }
- save.ulen = bufsize;
- F_CLR(&save, DB_DBT_MALLOC);
- F_SET(&save, DB_DBT_USERMEM);
- }
- }
- data = save;
- if (ispget) {
- if (flag == DB_GET_BOTH) {
- pkey.data = save.data;
- pkey.size = save.size;
- data.data = NULL;
- data.size = 0;
- }
- F_SET(&pkey, DB_DBT_MALLOC);
- _debug_check();
- ret = dbp->pget(dbp,
- txn, &key, &pkey, &data, flag | rmw);
- } else {
- _debug_check();
- ret = dbp->get(dbp,
- txn, &key, &data, flag | rmw | mflag);
- }
- result = _ReturnSetup(interp, ret, DB_RETOK_DBGET(ret),
- "db get");
- if (ret == 0) {
- /*
- * Success. Return a list of the form {name value}
- * If it was a recno in key.data, we need to convert
- * into a string/object representation of that recno.
- */
- if (mflag & DB_MULTIPLE)
- result = _SetMultiList(interp,
- retlist, &key, &data, type, flag);
- else if (type == DB_RECNO || type == DB_QUEUE)
- if (ispget)
- result = _Set3DBTList(interp,
- retlist, &key, 1, &pkey,
- useprecno, &data);
- else
- result = _SetListRecnoElem(interp,
- retlist, *(db_recno_t *)key.data,
- data.data, data.size);
- else {
- if (ispget)
- result = _Set3DBTList(interp,
- retlist, &key, 0, &pkey,
- useprecno, &data);
- else
- result = _SetListElem(interp, retlist,
- key.data, key.size,
- data.data, data.size);
- }
- }
- /*
- * Free space from DBT.
- *
- * If we set DB_DBT_MALLOC, we need to free the space if
- * and only if we succeeded (and thus if DB allocated
- * anything). If DB_DBT_MALLOC is not set, this is a bulk
- * get buffer, and needs to be freed no matter what.
- */
- if (F_ISSET(&data, DB_DBT_MALLOC) && ret == 0)
- __os_ufree(dbp->dbenv, data.data);
- else if (!F_ISSET(&data, DB_DBT_MALLOC))
- __os_free(dbp->dbenv, data.data);
- if (ispget && ret == 0)
- __os_ufree(dbp->dbenv, pkey.data);
- if (result == TCL_OK)
- Tcl_SetObjResult(interp, retlist);
- goto out;
- }
- if (userecno) {
- result = _GetUInt32(interp, objv[(objc - 1)], &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-1], &ktmp,
- &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBGET(ret), "db get");
- return (result);
- }
- key.data = ktmp;
- }
- ret = dbp->cursor(dbp, txn, &dbc, 0);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "db cursor");
- if (result == TCL_ERROR)
- goto out;
- /*
- * At this point, we have a cursor, if we have a pattern,
- * we go to the nearest one and step forward until we don't
- * have any more that match the pattern prefix. If we have
- * an exact key, we go to that key position, and step through
- * all the duplicates. In either case we build up a list of
- * the form {{key data} {key data}...} along the way.
- */
- memset(&data, 0, sizeof(data));
- /*
- * Restore any "partial" info we have saved.
- */
- data = save;
- if (pattern) {
- /*
- * Note, prefix is returned in new space. Must free it.
- */
- ret = _GetGlobPrefix(pattern, &prefix);
- if (ret) {
- result = TCL_ERROR;
- Tcl_SetResult(interp,
- "Unable to allocate pattern space", TCL_STATIC);
- goto out1;
- }
- key.data = prefix;
- key.size = strlen(prefix);
- /*
- * If they give us an empty pattern string
- * (i.e. -glob *), go through entire DB.
- */
- if (strlen(prefix) == 0)
- cflag = DB_FIRST;
- else
- cflag = DB_SET_RANGE;
- } else
- cflag = DB_SET;
- if (ispget) {
- _debug_check();
- F_SET(&pkey, DB_DBT_MALLOC);
- ret = dbc->c_pget(dbc, &key, &pkey, &data, cflag | rmw);
- } else {
- _debug_check();
- ret = dbc->c_get(dbc, &key, &data, cflag | rmw);
- }
- result = _ReturnSetup(interp, ret, DB_RETOK_DBCGET(ret),
- "db get (cursor)");
- if (result == TCL_ERROR)
- goto out1;
- if (ret == 0 && pattern &&
- memcmp(key.data, prefix, strlen(prefix)) != 0) {
- /*
- * Free space from DB_DBT_MALLOC
- */
- free(data.data);
- goto out1;
- }
- if (pattern)
- cflag = DB_NEXT;
- else
- cflag = DB_NEXT_DUP;
- while (ret == 0 && result == TCL_OK) {
- /*
- * Build up our {name value} sublist
- */
- if (ispget)
- result = _Set3DBTList(interp, retlist, &key, 0,
- &pkey, useprecno, &data);
- else
- result = _SetListElem(interp, retlist,
- key.data, key.size, data.data, data.size);
- /*
- * Free space from DB_DBT_MALLOC
- */
- if (ispget)
- free(pkey.data);
- free(data.data);
- if (result != TCL_OK)
- break;
- /*
- * Append {name value} to return list
- */
- memset(&key, 0, sizeof(key));
- memset(&pkey, 0, sizeof(pkey));
- memset(&data, 0, sizeof(data));
- /*
- * Restore any "partial" info we have saved.
- */
- data = save;
- if (ispget) {
- F_SET(&pkey, DB_DBT_MALLOC);
- ret = dbc->c_pget(dbc, &key, &pkey, &data, cflag | rmw);
- } else
- ret = dbc->c_get(dbc, &key, &data, cflag | rmw);
- if (ret == 0 && pattern &&
- memcmp(key.data, prefix, strlen(prefix)) != 0) {
- /*
- * Free space from DB_DBT_MALLOC
- */
- free(data.data);
- break;
- }
- }
- out1:
- dbc->c_close(dbc);
- if (result == TCL_OK)
- Tcl_SetObjResult(interp, retlist);
- out:
- /*
- * _GetGlobPrefix(), the function which allocates prefix, works
- * by copying and condensing another string. Thus prefix may
- * have multiple nuls at the end, so we free using __os_free().
- */
- if (prefix != NULL)
- __os_free(dbp->dbenv, prefix);
- if (freedata)
- (void)__os_free(dbp->dbenv, dtmp);
- if (freekey)
- (void)__os_free(dbp->dbenv, ktmp);
- return (result);
- }
- /*
- * tcl_db_delete --
- */
- static int
- tcl_DbDelete(interp, objc, objv, dbp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- {
- static char *dbdelopts[] = {
- "-auto_commit",
- "-glob",
- "-txn",
- NULL
- };
- enum dbdelopts {
- DBDEL_AUTO_COMMIT,
- DBDEL_GLOB,
- DBDEL_TXN
- };
- DBC *dbc;
- DBT key, data;
- DBTYPE type;
- DB_TXN *txn;
- void *ktmp;
- db_recno_t recno;
- int freekey, i, optindex, result, ret;
- u_int32_t flag;
- char *arg, *pattern, *prefix, msg[MSG_SIZE];
- result = TCL_OK;
- freekey = 0;
- flag = 0;
- pattern = prefix = NULL;
- txn = NULL;
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? key");
- return (TCL_ERROR);
- }
- memset(&key, 0, sizeof(key));
- /*
- * The first arg must be -auto_commit, -glob, -txn or a list of keys.
- */
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbdelopts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- /*
- * If we don't have a -auto_commit, -glob or -txn,
- * then the remaining args must be exact keys.
- * Reset the result so we don't get an errant error
- * message if there is another error.
- */
- if (IS_HELP(objv[i]) == TCL_OK)
- return (TCL_OK);
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbdelopts)optindex) {
- case DBDEL_TXN:
- if (i == objc) {
- /*
- * Someone could conceivably have a key of
- * the same name. So just break and use it.
- */
- i--;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "Delete: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- case DBDEL_AUTO_COMMIT:
- flag |= DB_AUTO_COMMIT;
- break;
- case DBDEL_GLOB:
- /*
- * Get the pattern. Get the prefix and use cursors to
- * get all the data items.
- */
- if (i == objc) {
- /*
- * Someone could conceivably have a key of
- * the same name. So just break and use it.
- */
- i--;
- break;
- }
- pattern = Tcl_GetStringFromObj(objv[i++], NULL);
- break;
- }
- if (result != TCL_OK)
- break;
- }
- if (result != TCL_OK)
- goto out;
- /*
- * XXX
- * For consistency with get, we have decided for the moment, to
- * allow -glob, or one key, not many. The code was originally
- * written to take many keys and we'll leave it that way, because
- * tcl_DbGet may one day accept many disjoint keys to get, rather
- * than one, and at that time we'd make delete be consistent. In
- * any case, the code is already here and there is no need to remove,
- * just check that we only have one arg left.
- *
- * If we have a pattern AND more keys to process, there is an error.
- * Either we have some number of exact keys, or we have a pattern.
- *
- * If we have a pattern and an auto commit flag, there is an error.
- */
- if (pattern == NULL) {
- if (i != (objc - 1)) {
- Tcl_WrongNumArgs(
- interp, 2, objv, "?args? -glob pattern | key");
- result = TCL_ERROR;
- goto out;
- }
- } else {
- if (i != objc) {
- Tcl_WrongNumArgs(
- interp, 2, objv, "?args? -glob pattern | key");
- result = TCL_ERROR;
- goto out;
- }
- if (flag & DB_AUTO_COMMIT) {
- Tcl_SetResult(interp,
- "Cannot use -auto_commit and patterns.n",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- }
- }
- /*
- * If we have remaining args, they are all exact keys. Call
- * DB->del on each of those keys.
- *
- * If it is a RECNO database, the key is a record number and must be
- * setup up to contain a db_recno_t. Otherwise the key is a "string".
- */
- (void)dbp->get_type(dbp, &type);
- ret = 0;
- while (i < objc && ret == 0) {
- memset(&key, 0, sizeof(key));
- if (type == DB_RECNO || type == DB_QUEUE) {
- result = _GetUInt32(interp, objv[i++], &recno);
- if (result == TCL_OK) {
- key.data = &recno;
- key.size = sizeof(db_recno_t);
- } else
- return (result);
- } else {
- ret = _CopyObjBytes(interp, objv[i++], &ktmp,
- &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBDEL(ret), "db del");
- return (result);
- }
- key.data = ktmp;
- }
- _debug_check();
- ret = dbp->del(dbp, txn, &key, flag);
- /*
- * If we have any error, set up return result and stop
- * processing keys.
- */
- if (freekey)
- (void)__os_free(dbp->dbenv, ktmp);
- if (ret != 0)
- break;
- }
- result = _ReturnSetup(interp, ret, DB_RETOK_DBDEL(ret), "db del");
- /*
- * At this point we've either finished or, if we have a pattern,
- * we go to the nearest one and step forward until we don't
- * have any more that match the pattern prefix.
- */
- if (pattern) {
- ret = dbp->cursor(dbp, txn, &dbc, 0);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret),
- "db cursor");
- goto out;
- }
- /*
- * Note, prefix is returned in new space. Must free it.
- */
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- ret = _GetGlobPrefix(pattern, &prefix);
- if (ret) {
- result = TCL_ERROR;
- Tcl_SetResult(interp,
- "Unable to allocate pattern space", TCL_STATIC);
- goto out;
- }
- key.data = prefix;
- key.size = strlen(prefix);
- if (strlen(prefix) == 0)
- flag = DB_FIRST;
- else
- flag = DB_SET_RANGE;
- ret = dbc->c_get(dbc, &key, &data, flag);
- while (ret == 0 &&
- memcmp(key.data, prefix, strlen(prefix)) == 0) {
- /*
- * Each time through here the cursor is pointing
- * at the current valid item. Delete it and
- * move ahead.
- */
- _debug_check();
- ret = dbc->c_del(dbc, 0);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_DBCDEL(ret), "db c_del");
- break;
- }
- /*
- * Deleted the current, now move to the next item
- * in the list, check if it matches the prefix pattern.
- */
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- ret = dbc->c_get(dbc, &key, &data, DB_NEXT);
- }
- if (ret == DB_NOTFOUND)
- ret = 0;
- /*
- * _GetGlobPrefix(), the function which allocates prefix, works
- * by copying and condensing another string. Thus prefix may
- * have multiple nuls at the end, so we free using __os_free().
- */
- __os_free(dbp->dbenv, prefix);
- dbc->c_close(dbc);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "db del");
- }
- out:
- return (result);
- }
- /*
- * tcl_db_cursor --
- */
- static int
- tcl_DbCursor(interp, objc, objv, dbp, dbcp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- DBC **dbcp; /* Return cursor pointer */
- {
- static char *dbcuropts[] = {
- #if CONFIG_TEST
- "-dirty",
- "-update",
- #endif
- "-txn",
- NULL
- };
- enum dbcuropts {
- #if CONFIG_TEST
- DBCUR_DIRTY,
- DBCUR_UPDATE,
- #endif
- DBCUR_TXN
- };
- DB_TXN *txn;
- u_int32_t flag;
- int i, optindex, result, ret;
- char *arg, msg[MSG_SIZE];
- result = TCL_OK;
- flag = 0;
- txn = NULL;
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbcuropts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- result = IS_HELP(objv[i]);
- goto out;
- }
- i++;
- switch ((enum dbcuropts)optindex) {
- #if CONFIG_TEST
- case DBCUR_DIRTY:
- flag |= DB_DIRTY_READ;
- break;
- case DBCUR_UPDATE:
- flag |= DB_WRITECURSOR;
- break;
- #endif
- case DBCUR_TXN:
- if (i == objc) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id?");
- result = TCL_ERROR;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "Cursor: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- }
- if (result != TCL_OK)
- break;
- }
- if (result != TCL_OK)
- goto out;
- _debug_check();
- ret = dbp->cursor(dbp, txn, dbcp, flag);
- if (ret != 0)
- result = _ErrorSetup(interp, ret, "db cursor");
- out:
- return (result);
- }
- /*
- * tcl_DbAssociate --
- * Call DB->associate().
- */
- static int
- tcl_DbAssociate(interp, objc, objv, dbp)
- Tcl_Interp *interp;
- int objc;
- Tcl_Obj *CONST objv[];
- DB *dbp;
- {
- static char *dbaopts[] = {
- "-auto_commit",
- "-create",
- "-txn",
- NULL
- };
- enum dbaopts {
- DBA_AUTO_COMMIT,
- DBA_CREATE,
- DBA_TXN
- };
- DB *sdbp;
- DB_TXN *txn;
- DBTCL_INFO *sdbip;
- int i, optindex, result, ret;
- char *arg, msg[MSG_SIZE];
- u_int32_t flag;
- txn = NULL;
- result = TCL_OK;
- flag = 0;
- if (objc < 2) {
- Tcl_WrongNumArgs(interp, 2, objv, "[callback] secondary");
- return (TCL_ERROR);
- }
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbaopts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- result = IS_HELP(objv[i]);
- if (result == TCL_OK)
- return (result);
- result = TCL_OK;
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbaopts)optindex) {
- case DBA_AUTO_COMMIT:
- flag |= DB_AUTO_COMMIT;
- break;
- case DBA_CREATE:
- flag |= DB_CREATE;
- break;
- case DBA_TXN:
- if (i > (objc - 1)) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id?");
- result = TCL_ERROR;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "Associate: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- }
- }
- if (result != TCL_OK)
- return (result);
- /*
- * Better be 1 or 2 args left. The last arg must be the sdb
- * handle. If 2 args then objc-2 is the callback proc, else
- * we have a NULL callback.
- */
- /* Get the secondary DB handle. */
- arg = Tcl_GetStringFromObj(objv[objc - 1], NULL);
- sdbp = NAME_TO_DB(arg);
- if (sdbp == NULL) {
- snprintf(msg, MSG_SIZE,
- "Associate: Invalid database handle: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- return (TCL_ERROR);
- }
- /*
- * The callback is simply a Tcl object containing the name
- * of the callback proc, which is the second-to-last argument.
- *
- * Note that the callback needs to go in the *secondary* DB handle's
- * info struct; we may have multiple secondaries with different
- * callbacks.
- */
- sdbip = (DBTCL_INFO *)sdbp->api_internal;
- if (i != objc - 1) {
- /*
- * We have 2 args, get the callback.
- */
- sdbip->i_second_call = objv[objc - 2];
- Tcl_IncrRefCount(sdbip->i_second_call);
- /* Now call associate. */
- _debug_check();
- ret = dbp->associate(dbp, txn, sdbp, tcl_second_call, flag);
- } else {
- /*
- * We have a NULL callback.
- */
- sdbip->i_second_call = NULL;
- ret = dbp->associate(dbp, txn, sdbp, NULL, flag);
- }
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "associate");
- return (result);
- }
- /*
- * tcl_second_call --
- * Callback function for secondary indices. Get the callback
- * out of ip->i_second_call and call it.
- */
- static int
- tcl_second_call(dbp, pkey, data, skey)
- DB *dbp;
- const DBT *pkey, *data;
- DBT *skey;
- {
- DBTCL_INFO *ip;
- Tcl_Interp *interp;
- Tcl_Obj *pobj, *dobj, *objv[3];
- int len, result, ret;
- void *retbuf, *databuf;
- ip = (DBTCL_INFO *)dbp->api_internal;
- interp = ip->i_interp;
- objv[0] = ip->i_second_call;
- /*
- * Create two ByteArray objects, with the contents of the pkey
- * and data DBTs that are our inputs.
- */
- pobj = Tcl_NewByteArrayObj(pkey->data, pkey->size);
- Tcl_IncrRefCount(pobj);
- dobj = Tcl_NewByteArrayObj(data->data, data->size);
- Tcl_IncrRefCount(dobj);
- objv[1] = pobj;
- objv[2] = dobj;
- result = Tcl_EvalObjv(interp, 3, objv, 0);
- Tcl_DecrRefCount(pobj);
- Tcl_DecrRefCount(dobj);
- if (result != TCL_OK) {
- __db_err(dbp->dbenv,
- "Tcl callback function failed with code %d", result);
- return (EINVAL);
- }
- retbuf =
- Tcl_GetByteArrayFromObj(Tcl_GetObjResult(interp), &len);
- /*
- * retbuf is owned by Tcl; copy it into malloc'ed memory.
- * We need to use __os_umalloc rather than ufree because this will
- * be freed by DB using __os_ufree--the DB_DBT_APPMALLOC flag
- * tells DB to free application-allocated memory.
- */
- if ((ret = __os_umalloc(dbp->dbenv, len, &databuf)) != 0)
- return (ret);
- memcpy(databuf, retbuf, len);
- skey->data = databuf;
- skey->size = len;
- F_SET(skey, DB_DBT_APPMALLOC);
- return (0);
- }
- /*
- * tcl_db_join --
- */
- static int
- tcl_DbJoin(interp, objc, objv, dbp, dbcp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- DBC **dbcp; /* Cursor pointer */
- {
- static char *dbjopts[] = {
- "-nosort",
- NULL
- };
- enum dbjopts {
- DBJ_NOSORT
- };
- DBC **listp;
- u_int32_t flag;
- int adj, i, j, optindex, size, result, ret;
- char *arg, msg[MSG_SIZE];
- result = TCL_OK;
- flag = 0;
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "curs1 curs2 ...");
- return (TCL_ERROR);
- }
- i = 2;
- adj = i;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbjopts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- result = IS_HELP(objv[i]);
- if (result == TCL_OK)
- return (result);
- result = TCL_OK;
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbjopts)optindex) {
- case DBJ_NOSORT:
- flag |= DB_JOIN_NOSORT;
- adj++;
- break;
- }
- }
- if (result != TCL_OK)
- return (result);
- /*
- * Allocate one more for NULL ptr at end of list.
- */
- size = sizeof(DBC *) * ((objc - adj) + 1);
- ret = __os_malloc(dbp->dbenv, size, &listp);
- if (ret != 0) {
- Tcl_SetResult(interp, db_strerror(ret), TCL_STATIC);
- return (TCL_ERROR);
- }
- memset(listp, 0, size);
- for (j = 0, i = adj; i < objc; i++, j++) {
- arg = Tcl_GetStringFromObj(objv[i], NULL);
- listp[j] = NAME_TO_DBC(arg);
- if (listp[j] == NULL) {
- snprintf(msg, MSG_SIZE,
- "Join: Invalid cursor: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- goto out;
- }
- }
- listp[j] = NULL;
- _debug_check();
- ret = dbp->join(dbp, listp, dbcp, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "db join");
- out:
- __os_free(dbp->dbenv, listp);
- return (result);
- }
- /*
- * tcl_db_getjoin --
- */
- static int
- tcl_DbGetjoin(interp, objc, objv, dbp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- {
- static char *dbgetjopts[] = {
- #if CONFIG_TEST
- "-nosort",
- #endif
- "-txn",
- NULL
- };
- enum dbgetjopts {
- #if CONFIG_TEST
- DBGETJ_NOSORT,
- #endif
- DBGETJ_TXN
- };
- DB_TXN *txn;
- DB *elemdbp;
- DBC **listp;
- DBC *dbc;
- DBT key, data;
- Tcl_Obj **elemv, *retlist;
- void *ktmp;
- u_int32_t flag;
- int adj, elemc, freekey, i, j, optindex, result, ret, size;
- char *arg, msg[MSG_SIZE];
- result = TCL_OK;
- flag = 0;
- freekey = 0;
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "{db1 key1} {db2 key2} ...");
- return (TCL_ERROR);
- }
- txn = NULL;
- i = 2;
- adj = i;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbgetjopts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- result = IS_HELP(objv[i]);
- if (result == TCL_OK)
- return (result);
- result = TCL_OK;
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbgetjopts)optindex) {
- #if CONFIG_TEST
- case DBGETJ_NOSORT:
- flag |= DB_JOIN_NOSORT;
- adj++;
- break;
- #endif
- case DBGETJ_TXN:
- if (i == objc) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id?");
- result = TCL_ERROR;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- adj += 2;
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "GetJoin: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- }
- }
- if (result != TCL_OK)
- return (result);
- size = sizeof(DBC *) * ((objc - adj) + 1);
- ret = __os_malloc(NULL, size, &listp);
- if (ret != 0) {
- Tcl_SetResult(interp, db_strerror(ret), TCL_STATIC);
- return (TCL_ERROR);
- }
- memset(listp, 0, size);
- for (j = 0, i = adj; i < objc; i++, j++) {
- /*
- * Get each sublist as {db key}
- */
- result = Tcl_ListObjGetElements(interp, objv[i],
- &elemc, &elemv);
- if (elemc != 2) {
- Tcl_SetResult(interp, "Lists must be {db key}",
- TCL_STATIC);
- result = TCL_ERROR;
- goto out;
- }
- /*
- * Get a pointer to that open db. Then, open a cursor in
- * that db, and go to the "key" place.
- */
- elemdbp = NAME_TO_DB(Tcl_GetStringFromObj(elemv[0], NULL));
- if (elemdbp == NULL) {
- snprintf(msg, MSG_SIZE, "Get_join: Invalid db: %sn",
- Tcl_GetStringFromObj(elemv[0], NULL));
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- goto out;
- }
- ret = elemdbp->cursor(elemdbp, txn, &listp[j], 0);
- if ((result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret),
- "db cursor")) == TCL_ERROR)
- goto out;
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- ret = _CopyObjBytes(interp, elemv[elemc-1], &ktmp,
- &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_STD(ret), "db join");
- goto out;
- }
- key.data = ktmp;
- ret = (listp[j])->c_get(listp[j], &key, &data, DB_SET);
- if ((result = _ReturnSetup(interp, ret, DB_RETOK_DBCGET(ret),
- "db cget")) == TCL_ERROR)
- goto out;
- }
- listp[j] = NULL;
- _debug_check();
- ret = dbp->join(dbp, listp, &dbc, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "db join");
- if (result == TCL_ERROR)
- goto out;
- retlist = Tcl_NewListObj(0, NULL);
- while (ret == 0 && result == TCL_OK) {
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- key.flags |= DB_DBT_MALLOC;
- data.flags |= DB_DBT_MALLOC;
- ret = dbc->c_get(dbc, &key, &data, 0);
- /*
- * Build up our {name value} sublist
- */
- if (ret == 0) {
- result = _SetListElem(interp, retlist,
- key.data, key.size,
- data.data, data.size);
- free(key.data);
- free(data.data);
- }
- }
- dbc->c_close(dbc);
- if (result == TCL_OK)
- Tcl_SetObjResult(interp, retlist);
- out:
- if (freekey)
- (void)__os_free(dbp->dbenv, ktmp);
- while (j) {
- if (listp[j])
- (listp[j])->c_close(listp[j]);
- j--;
- }
- __os_free(dbp->dbenv, listp);
- return (result);
- }
- /*
- * tcl_DbCount --
- */
- static int
- tcl_DbCount(interp, objc, objv, dbp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- {
- Tcl_Obj *res;
- DBC *dbc;
- DBT key, data;
- void *ktmp;
- db_recno_t count, recno;
- int freekey, result, ret;
- result = TCL_OK;
- count = 0;
- freekey = 0;
- res = NULL;
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "key");
- return (TCL_ERROR);
- }
- memset(&key, 0, sizeof(key));
- /*
- * Get the count for our key.
- * We do this by getting a cursor for this DB. Moving the cursor
- * to the set location, and getting a count on that cursor.
- */
- ret = 0;
- memset(&key, 0, sizeof(key));
- memset(&data, 0, sizeof(data));
- /*
- * If it's a queue or recno database, we must make sure to
- * treat the key as a recno rather than as a byte string.
- */
- if (dbp->type == DB_RECNO || dbp->type == DB_QUEUE) {
- result = _GetUInt32(interp, objv[2], &recno);
- if (result == TCL_OK) {
- key.data = &recno;
- key.size = sizeof(db_recno_t);
- } else
- return (result);
- } else {
- ret = _CopyObjBytes(interp, objv[2], &ktmp,
- &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_STD(ret), "db count");
- return (result);
- }
- key.data = ktmp;
- }
- _debug_check();
- ret = dbp->cursor(dbp, NULL, &dbc, 0);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret),
- "db cursor");
- goto out;
- }
- /*
- * Move our cursor to the key.
- */
- ret = dbc->c_get(dbc, &key, &data, DB_SET);
- if (ret == DB_NOTFOUND)
- count = 0;
- else {
- ret = dbc->c_count(dbc, &count, 0);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret),
- "db c count");
- goto out;
- }
- }
- res = Tcl_NewLongObj((long)count);
- Tcl_SetObjResult(interp, res);
- out:
- if (freekey)
- (void)__os_free(dbp->dbenv, ktmp);
- (void)dbc->c_close(dbc);
- return (result);
- }
- #if CONFIG_TEST
- /*
- * tcl_DbKeyRange --
- */
- static int
- tcl_DbKeyRange(interp, objc, objv, dbp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- {
- static char *dbkeyropts[] = {
- "-txn",
- NULL
- };
- enum dbkeyropts {
- DBKEYR_TXN
- };
- DB_TXN *txn;
- DB_KEY_RANGE range;
- DBT key;
- DBTYPE type;
- Tcl_Obj *myobjv[3], *retlist;
- void *ktmp;
- db_recno_t recno;
- u_int32_t flag;
- int freekey, i, myobjc, optindex, result, ret;
- char *arg, msg[MSG_SIZE];
- result = TCL_OK;
- flag = 0;
- freekey = 0;
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id? key");
- return (TCL_ERROR);
- }
- txn = NULL;
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbkeyropts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- result = IS_HELP(objv[i]);
- if (result == TCL_OK)
- return (result);
- result = TCL_OK;
- Tcl_ResetResult(interp);
- break;
- }
- i++;
- switch ((enum dbkeyropts)optindex) {
- case DBKEYR_TXN:
- if (i == objc) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id?");
- result = TCL_ERROR;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "KeyRange: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- }
- }
- if (result != TCL_OK)
- return (result);
- (void)dbp->get_type(dbp, &type);
- ret = 0;
- /*
- * Make sure we have a key.
- */
- if (i != (objc - 1)) {
- Tcl_WrongNumArgs(interp, 2, objv, "?args? key");
- result = TCL_ERROR;
- goto out;
- }
- memset(&key, 0, sizeof(key));
- if (type == DB_RECNO || type == DB_QUEUE) {
- result = _GetUInt32(interp, objv[i], &recno);
- if (result == TCL_OK) {
- key.data = &recno;
- key.size = sizeof(db_recno_t);
- } else
- return (result);
- } else {
- ret = _CopyObjBytes(interp, objv[i++], &ktmp,
- &key.size, &freekey);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_STD(ret), "db keyrange");
- return (result);
- }
- key.data = ktmp;
- }
- _debug_check();
- ret = dbp->key_range(dbp, txn, &key, &range, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "db keyrange");
- if (result == TCL_ERROR)
- goto out;
- /*
- * If we succeeded, set up return list.
- */
- myobjc = 3;
- myobjv[0] = Tcl_NewDoubleObj(range.less);
- myobjv[1] = Tcl_NewDoubleObj(range.equal);
- myobjv[2] = Tcl_NewDoubleObj(range.greater);
- retlist = Tcl_NewListObj(myobjc, myobjv);
- if (result == TCL_OK)
- Tcl_SetObjResult(interp, retlist);
- out:
- if (freekey)
- (void)__os_free(dbp->dbenv, ktmp);
- return (result);
- }
- #endif
- /*
- * tcl_DbTruncate --
- */
- static int
- tcl_DbTruncate(interp, objc, objv, dbp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB *dbp; /* Database pointer */
- {
- static char *dbcuropts[] = {
- "-auto_commit",
- "-txn",
- NULL
- };
- enum dbcuropts {
- DBTRUNC_AUTO_COMMIT,
- DBTRUNC_TXN
- };
- DB_TXN *txn;
- Tcl_Obj *res;
- u_int32_t count, flag;
- int i, optindex, result, ret;
- char *arg, msg[MSG_SIZE];
- txn = NULL;
- flag = 0;
- result = TCL_OK;
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i], dbcuropts, "option",
- TCL_EXACT, &optindex) != TCL_OK) {
- result = IS_HELP(objv[i]);
- goto out;
- }
- i++;
- switch ((enum dbcuropts)optindex) {
- case DBTRUNC_AUTO_COMMIT:
- flag |= DB_AUTO_COMMIT;
- break;
- case DBTRUNC_TXN:
- if (i == objc) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-txn id?");
- result = TCL_ERROR;
- break;
- }
- arg = Tcl_GetStringFromObj(objv[i++], NULL);
- txn = NAME_TO_TXN(arg);
- if (txn == NULL) {
- snprintf(msg, MSG_SIZE,
- "Truncate: Invalid txn: %sn", arg);
- Tcl_SetResult(interp, msg, TCL_VOLATILE);
- result = TCL_ERROR;
- }
- break;
- }
- if (result != TCL_OK)
- break;
- }
- if (result != TCL_OK)
- goto out;
- _debug_check();
- ret = dbp->truncate(dbp, txn, &count, flag);
- if (ret != 0)
- result = _ErrorSetup(interp, ret, "db truncate");
- else {
- res = Tcl_NewLongObj((long)count);
- Tcl_SetObjResult(interp, res);
- }
- out:
- return (result);
- }