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dbdimp.ic
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/* Copyright (c) 1999-2024 H.Merijn Brand <[email protected]>
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the Perl README file.
*
* Large parts of this file are shamelesly copied from other DBD drivers,
* after which they are formatted to be readable, stripped and modified
* to reflect the way UNIFY can work with it.
*
* Much effort has been put in keeping this driver as clean as possible.
* It consists entirely of E/SQL statements. ufchmsg () in the sqlError ()
* function is the *ONLY* HLI call.
*
* Main sources were Oracle (1.03), FreeTDS (0.02) and Ingres (0.24, 0.25)
* whose writers seem to have copied from other sources too ;-)
*
* Thanks to Tim Bunce for valuable input in his tutorials on O'Reilly's
* Open Source Conference 2000 in Monterey, and his code review.
*
* Thanks to all other DBD writers for making DBI such a success ;-)
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
/* Get this from previously installed DBI module ...
* Makefile.PL will find it's include path
*/
#define NEED_DBIXS_VERSION 7
#include <DBIXS.h>
#include <config.h> /* perl's config, I hope */
#include <dbd_xsh.h>
#define NEED_sv_2pv_flags
#define UEXTERN static
#define UINIT0 =0
#include "dbdimp.h"
DBISTATE_DECLARE;
/* Unify stuff off here */
#include <sqle_usr.h>
#include <sqlerr.h>
#include <dbtypes.h>
#include <rhli.h>
#include <rhlierr.h>
#ifndef SQLCURRENCY
# define SQLCURRENCY -18
# endif
#ifndef SQLDATETIME
# define SQLDATETIME 0xDEADBEAF
# endif
extern int rangchk (int, int);
extern int sqlalcr (char *, SQLCRCB *, SQLDBGST *);
extern int sqlald2 (SQLDACB *, int, int, SQLDBGST *);
extern int sqlcldb ( SQLDBGST *);
extern int sqlcls (CRSCB *, SQLDBGST *);
extern SQLCRCB *sqlcrnm (char *, int, SQLDBGST *);
extern SQLDACB *sqldanm (char *, int, SQLDBGST *);
extern int sqldcls (SQLCRCB *, SQLDBGST *);
extern int sqldesc (SQLDSCRB, SQLSTCB *, SQLDACB *, SQLDBGST *);
extern int sqldlda (SQLDACB *, SQLDBGST *);
extern int sqldfch (SQLCRCB *, int, HVDS *, SQLFCHDIR, int, SQLDBGST *);
extern int sqldlst (SQLSTCB *, SQLDBGST *);
extern int sqldopn (SQLCRCB *, int, HVDS *, int, SQLDBGST *);
extern int sqldxec (SQLSTCB *, int, HVDS *, int, HVDS *, SQLDBGST *);
extern int sqlfch (CRSCB *, SQLFCHDIR, int, SQLDBGST *);
extern int sqlgtd2 (SQLDACB *, int, int, int, long, int *,
void *, int, SQLDBGST *);
extern int sqlopdb (char *, SQLDBGST *);
extern int sqlopn (CRSCB *, SQLDBGST *);
extern int sqlprep (char *, SQLSTCB *, SQLDBGST *);
extern int sqlstcd (int);
extern int sqlstd2 (SQLDACB *, int, int, SQLDA_FIELD *,
HVDS *, int, SQLDBGST *);
extern SQLSTCB *sqlstnm (char *, int, SQLDBGST *);
extern int sqltxop (int, int, SQLDBGST *);
extern int sqlxec (CRSCB *, SQLDBGST *);
extern char *basename (const char *path);
extern int uallcgp (UTXID, UTID, int, int*, UCID **, USTATUS *);
extern int uinfcgp (UTXID, int, UCID *, UOPTS, UCGPINF *, USTATUS *, USTATUS *);
#define Max(a,b) ((a)>=(b)?(a):(b))
static char *pgm = NULL;
static byte *sth_id_on;
static short n_sth_id = 4; /* Start with max 32 $sth's */
static int dbd_verbose = 0;
/* The data dictionary */
HV *h_dd = NULL;
/* forward references */
int dbd_st_finish (SV *, imp_sth_t *);
int dbd_st_rows (SV *, imp_sth_t *);
/* Check source for use: these defines cannot be used inside EXEC SQL ! */
#define MAX_SQL_LEN 4096
#define MAX_NM_LEN 20
EXEC SQL BEGIN DECLARE SECTION;
char u_sql_do[4096];
char u_sql_st[4096];
char u_sql_nm[20];
char c_sql_nm[20];
char o_sql_nm[20]; /* Output descriptor area */
char i_sql_nm[20]; /* Input descriptor area */
int n_sql_st;
int fix, fln, fic, ftp, fpr, fsc, fnl;
char fnm[48], fdC[1028];
utxtptr fdB;
ubinptr fdX;
short fdS;
int fdL;
float fdF;
double fdD;
utime fdT;
udate fdDT;
uhdate fdHDT;
char fdDTTM[24];
EXEC SQL END DECLARE SECTION;
#define DBI_debug (dbis->debug & DBIc_TRACE_LEVEL_MASK)
/* For more info about error handling, read
* https://metacpan.org/pod/DBI::DBD#The-dbd_drv_error-method
*/
#ifdef I_STDARG
static void dbg (int level, char *fmt, ...)
#endif
#ifdef I_VARARGS
/* VARARGS2 */
static void dbg (level, fmt, va_alist)
int level;
char *fmt;
va_dcl
#endif
{
auto va_list args;
if (level > Max (dbd_verbose, DBI_debug))
return;
#ifdef I_STDARG
va_start (args, fmt);
#endif
#ifdef I_VARARGS
va_start (args);
#endif
/* DBILOGFP should ideally be replaced with DBIc_LOGPIO (imp_xxh)
* but dbg doesn't get a handle (yet) */
(void)PerlIO_vprintf (DBILOGFP, fmt, args);
(void)PerlIO_flush (DBILOGFP);
va_end (args);
} /* dbg */
#ifdef I_STDARG
static void st_dbg (int level, imp_sth_t *sth, char *fmt, ...)
#endif
#ifdef I_VARARGS
/* VARARGS2 */
static void st_dbg (level, sth, fmt, va_alist)
int level;
imp_sth_t *sth;
char *fmt;
va_dcl
#endif
{
auto va_list args;
if (level > Max (sth->dbd_verbose, Max (dbd_verbose, DBI_debug)))
return;
#ifdef I_STDARG
va_start (args, fmt);
#endif
#ifdef I_VARARGS
va_start (args);
#endif
(void)PerlIO_vprintf (DBIc_LOGPIO (sth), fmt, args);
(void)PerlIO_flush (DBIc_LOGPIO (sth));
va_end (args);
} /* st_dbg */
/* ##### Unify misc stuff ################################################## */
static void NYI (char *func) {
auto char die_msg[128];
(void)sprintf (die_msg, "DBD::UNIFY::%s () is not (yet) implemented", func);
die (die_msg);
} /* NYI */
void dbd_init (dbistate_t *dbistate) {
dTHX;
DBIS = dbistate;
(void)memset (fnm, 0, sizeof (fnm));
/* dbis->debug = 9; */
} /* dbd_init */
/* Error */
static void error (SV *h, int error_num, char *text) {
D_imp_xxh (h);
DBIh_SET_ERR_CHAR (h, imp_xxh, NULL, error_num, text, SQLSTATE, NULL);
} /* error */
/* Warning */
static void warning (SV *h, int error_num, char *text) {
D_imp_xxh (h);
DBIh_SET_ERR_CHAR (h, imp_xxh, "0", error_num, text, SQLSTATE, NULL);
} /* error */
/* Success with information */
static void info (SV *h, int error_num, char *text) {
D_imp_xxh (h);
DBIh_SET_ERR_CHAR (h, imp_xxh, "", error_num, text, SQLSTATE, NULL);
} /* error */
static int sqlError (SV *h) {
auto USTATUS status;
if (SQLCODE >= 0) {
if (SQLWARN < 0) {
dbg (4, "DBD::Unify::sqlError: SQLWARN = %d", SQLWARN);
warning (h, SQLWARN, ufchmsg (SQLWARN, &status));
}
return (1);
}
dbg (4, "DBD::Unify::sqlError: SQLCODE = %d", SQLCODE);
error (h, SQLCODE, ufchmsg (SQLCODE, &status));
dbg (4, ", returning\n");
return (0);
} /* sqlError */
/* ##### Unify DB stuff #################################################### */
int dbd_db_login (SV *dbh, imp_dbh_t *imp_dbh,
char *dbname, char *user, char *auth) {
EXEC SQL BEGIN DECLARE SECTION;
char statement[128];
EXEC SQL END DECLARE SECTION;
dTHX;
char *opt;
#ifndef PERL_USE_SAFE_PUTENV
PL_use_safe_putenv = 1;
#endif
if ((opt = getenv ("DBD_TRACE"))) {
auto int i = 0;
while (*opt) {
if (isdigit (*opt)) {
i = 10 * i + *opt - '0';
}
else {
i = -100;
}
opt++;
}
if (i >= 0 && i <= 99) {
dbd_verbose = i;
dbg (2, "Set DBD_VERBOSE = %d\n", dbd_verbose);
}
}
if ((opt = getenv ("DBD_VERBOSE"))) {
auto int i = 0;
while (*opt) {
unless (isdigit (*opt))
break;
i = 10 * i + *opt - '0';
opt++;
}
if (!*opt && i >= 0 && i <= 99) {
dbd_verbose = i;
dbg (2, "Set DBD_VERBOSE = %d\n", dbd_verbose);
}
}
dbg (3, "DBD::Unify::db_login: dbname: %s\n", dbname);
/* CONNECT [db_name];
*
* db_name: [[dbhost]:[dbuser]:][dbpath] [dbname]
* $DBHOST, $DBUSER, DBPATH, $DBNAME
*
* Users are implicitly checked by grants
*
* SET CURRENT SCHEMA TO 'USCHEMA';
*
* $USCHEMA (passed as $auth)
*/
opt = dbname;
/* look for options in dbname. Syntax: dbname;options */
while (*opt && *opt != ';')
++opt;
if (*opt == ';') {
*opt = 0; /* terminate dbname */
opt++; /* point to options */
}
if (user && *user && *user != '/') {
/* we have a username */
dbg (4, " user = '%s', opt = '%s' (ignored)\n", user, opt);
}
if (dbname && *dbname) {
(void)sprintf (statement, "DBPATH=%s", dbname);
(void)putenv (statement);
}
unless (pgm) {
/* Register program to monitor system, must be done BEFORE connect */
USTATUS ustatus;
pgm = basename (SvPV_nolen (get_sv ("0", 0)));
(void)uinimsg (pgm, &ustatus);
dbg (4, " After uinimsg ('%s'), status = %ld\n", pgm, ustatus);
}
EXEC SQL
CONNECT;
dbg (4, " After connect, sqlcode = %d\n", SQLCODE);
/* Problem number 22960: 2nd Connect to same database fails */
if (SQLCODE == -254) SQLCODE = 0;
unless (sqlError (dbh))
return (0);
DBIc_IMPSET_on (imp_dbh); /* imp_dbh set up now */
DBIc_ACTIVE_on (imp_dbh); /* call disconnect before freeing */
DBIc_set (imp_dbh, DBIcf_AutoCommit, 0);
DBIc_set (imp_dbh, DBIcf_ChopBlanks, 1);
imp_dbh->id = n_dbh++;
imp_dbh->children = (imp_sth_t **)0;
imp_dbh->nchildren = 0;
imp_dbh->unicode = 0;
unless (auth && *auth)
auth = getenv ("USCHEMA");
if ((!user || !*user) && auth && *auth) {
(void)sprintf (statement, "set current schema to \"%s\"", auth);
dbg (3, " %s\n", statement);
EXEC SQL
EXECUTE IMMEDIATE :statement;
dbg (4, " After schema, sqlcode = %d\n", SQLCODE);
unless (sqlError (dbh))
return (0);
}
unless (sth_id_on || (sth_id_on = (byte *)calloc (n_sth_id, 8))) {
error (dbh, errno, "Cannot allocate space for STH's");
return (0);
}
return (1);
} /* dbd_db_login */
static char *u_err (USTATUS s) {
USTATUS status;
static char e[2048];
char *msg = ufchmsg (s, &status);
sprintf (e, "%04d: %s", s, msg ? msg : "Unknown error");
return (e);
} /* u_err */
/* Fetch DB info and store in hash
%db{AUTH}[4] = { = $db{s}{"SYS"}
AID => 4,
NAME => "SYS,
TABLES => [ 77, ...],
],
$db{TABLE}[77] = { = $db{t}{"SYS.HASH_INDEXES"}
TID => 77,
NAME => "HASH_INDEXES",
OPTIONS => 0x12,
DIRECTKEY => 0,
SCATTERED => 0,
FIXEDSIZE => 0,
PKEYED => 0,
COLUMNS => [ 323, ...],
},
$db{COLUMN}[323] = {
TID => 77,
TNAME => "
CID => 323,
NAME => "OWNR",
TYPE => 5, # CHAR
LENGTH => 18,
SCALE => 0,
NULLABLE => 0,
DSP_LEN => 18,
DSP_SCL => 0,
DSP_PICT => "",
OPTIONS => 0x10,
PKEY => 0,
RDONLY => 0,
UNIQUE => 0,
LINK => -1, # CID
REFS = [],
},
$db{TYPE}[5] = [ 5, "CHAR", "CHAR" ],
*/
static void _db_dict (int refresh) {
int n, err;
pid_t pid;
UDBID dbid;
UAID *aidl;
UCID *cidl;
ULID *lidl;
UTID *tidl;
UTXID txid;
USTATUS status = -123;
UCID *a_lnk;
AV *a_typ;
AV *a_sch;
SV **A_anm = NULL;
AV **A_tbl;
char *A_typ[128];
if (h_dd) {
unless (refresh)
return;
dbg (9, "REFRESH DD DICT CACHE (%d)\n", refresh);
sv_free ((SV *)h_dd);
}
pid = getpid ();
unless (uopndb ((char *)0, DB_NOLOCK, &dbid, &status)) {
unless (status == -151) /* Database already opened. (-151) */
warn ("Cannot connect to database: %s\n", u_err (status));
return;
}
unless (sqlebtx (&txid, &status)) {
warn ("Cannot start a transaction: %s\n", u_err (status));
return;
}
h_dd = newHV ();
a_typ = newAV ();
a_sch = newAV ();
A_typ[U_INT] = "INTEGER";
A_typ[U_HINT] = "HUGE INTEGER";
A_typ[U_FLT] = "FLOAT";
A_typ[U_DBL] = "DOUBLE";
A_typ[U_REAL] = "REAL";
A_typ[U_AMT] = "AMOUNT";
A_typ[U_HAMT] = "HUGE AMOUNT";
A_typ[U_DATE] = "DATE";
A_typ[U_HDATE] = "HUGE DATE";
A_typ[U_TIME] = "TIME";
A_typ[U_STR] = "CHAR";
A_typ[U_VTXT] = "TEXT";
A_typ[U_VBIN] = "BINARY";
A_typ[U_BYT] = "BYTE";
(void)av_store (a_typ, U_INT, newSVpv (A_typ[U_INT], 0));
(void)av_store (a_typ, U_HINT, newSVpv (A_typ[U_HINT], 0));
(void)av_store (a_typ, U_FLT, newSVpv (A_typ[U_FLT], 0));
(void)av_store (a_typ, U_DBL, newSVpv (A_typ[U_DBL], 0));
(void)av_store (a_typ, U_REAL, newSVpv (A_typ[U_REAL], 0));
(void)av_store (a_typ, U_AMT, newSVpv (A_typ[U_AMT], 0));
(void)av_store (a_typ, U_HAMT, newSVpv (A_typ[U_HAMT], 0));
(void)av_store (a_typ, U_DATE, newSVpv (A_typ[U_DATE], 0));
(void)av_store (a_typ, U_HDATE, newSVpv (A_typ[U_HDATE], 0));
(void)av_store (a_typ, U_TIME, newSVpv (A_typ[U_TIME], 0));
(void)av_store (a_typ, U_STR, newSVpv (A_typ[U_STR], 0));
(void)av_store (a_typ, U_VTXT, newSVpv (A_typ[U_VTXT], 0));
(void)av_store (a_typ, U_VBIN, newSVpv (A_typ[U_VBIN], 0));
(void)av_store (a_typ, U_BYT, newSVpv (A_typ[U_BYT], 0));
#ifdef H_BOOL
A_typ[U_BOOL] = "BOOL";
(void)av_store (a_typ, U_BOOL, newSVpv (A_typ[U_BOOL], 0));
#endif
#ifdef H_DEC
A_typ[U_DEC] = "DECIMAL";
(void)av_store (a_typ, U_DEC, newSVpv (A_typ[U_DEC], 0));
#endif
#ifdef H_GINT
A_typ[U_GINT] = "GIANT NUMERIC";
(void)av_store (a_typ, U_GINT, newSVpv (A_typ[U_GINT], 0));
#endif
#ifdef H_GAMT
A_typ[U_GAMT] = "GIANT AMOUNT";
(void)av_store (a_typ, U_GAMT, newSVpv (A_typ[U_GAMT], 0));
#endif
#ifdef H_DATETIME
A_typ[U_DATETIME] = "DATETIME";
(void)av_store (a_typ, U_DATETIME, newSVpv (A_typ[U_DATETIME], 0));
#endif
(void)hv_store (h_dd, "TYPE", 4, newRV_noinc ((SV *)a_typ), 0);
/* Fetch SCHEMA's (AUTH) */
if (uallath (txid, USLCK, &n, &aidl, &status)) {
UATHINF *al = (UATHINF *)calloc (n, sizeof (UATHINF));
USTATUS *asl = (USTATUS *)calloc (n, sizeof (USTATUS));
if (al && asl && uinfath (txid, n, aidl, UALLINFO, al, asl, &status)) {
int i, x = 0;
for (i = 0; i < n; i++) {
if (al[i].aid > x) x = al[i].aid;
}
A_anm = (SV **)calloc (x + 1, sizeof (SV *));
A_tbl = (AV **)calloc (x + 1, sizeof (AV *));
(void)hv_store (h_dd, "AUTH", 4, newRV_noinc ((SV *)a_sch), 0);
for (i = 0; i < n; i++) {
UAID aid = al[i].aid;
HV *h_dba = newHV ();
AV *a_tbl = newAV ();
A_anm[aid] = newSVpv (al[i].authnm, 0);
(void)hv_store (h_dba, "AID", 3, newSViv (aid), 0);
(void)hv_store (h_dba, "NAME", 4, A_anm[aid], 0);
(void)hv_store (h_dba, "TABLES", 6, newRV_noinc ((SV *)a_tbl), 0);
(void)av_store (a_sch, aid, newRV_noinc ((SV *)h_dba));
A_tbl[aid] = a_tbl;
}
}
if (al) free (al);
if (asl) free (asl);
if (n) free (aidl);
}
/* Fetch links: only one-to-one links are supported */
if (ualllnk (txid, UNULLTID, USLCK, &n, &lidl, &status)) {
ULNKINF *ll = (ULNKINF *)calloc (n, sizeof (ULNKINF));
USTATUS *lsl = (USTATUS *)calloc (n, sizeof (USTATUS));
if (ll && lsl && uinflnk (txid, n, lidl, UALLINFO, ll, lsl, &status)) {
int i, j, x = 0;
for (i = 0; i < n; i++) {
for (j = 0; j < ll[i].count; j++) {
if (ll[i].cloc[j] > x) x = ll[i].cloc[j];
}
}
a_lnk = (UCID *)calloc (x + 1, sizeof (UCID));
a_lnk[0] = x;
for (i = 0; i < n; i++) {
if (ll[i].count == 1)
a_lnk[ll[i].cloc[0]] = ll[i].ploc[0];
}
}
if (ll) free (ll);
if (lsl) free (lsl);
if (n) free (lidl);
}
else {
warn ("Call to fetch all links failed with code %d: %s\n", err, u_err (status));
}
err = ualltbl (txid, UNULLAID, USLCK, &n, &tidl, &status);
if (err != USUCCESS || n <= 0) {
warn ("Call to fetch all tables failed with code %d: %s\n", err, u_err (status));
}
else {
UTBLINF *tinfl = NULL;
USTATUS *tsl = NULL;
if ((tinfl = (UTBLINF *)calloc (n, sizeof (UTBLINF))) != NULL &&
(tsl = (USTATUS *)calloc (n, sizeof (USTATUS))) != NULL &&
uinftbl (txid, n, tidl, UALLINFO, tinfl, tsl, &status)) {
int i, c, g;
AV *a_tbl = newAV ();
AV *a_fld = newAV ();
(void)hv_store (h_dd, "TABLE", 5, newRV_noinc ((SV *)a_tbl), 0);
(void)hv_store (h_dd, "COLUMN", 6, newRV_noinc ((SV *)a_fld), 0);
for (i = 0; i < n; i++) {
UTID tid = tidl[i];
UTBLINF *ti = &tinfl[i];
UAID aid = ti->aid;
UCID *cl = ti->ucidlst;
USTATUS *csl = NULL;
UCOLINF *cinfl = NULL;
HV *h_dbt = newHV ();
AV *a_dbc = newAV ();
AV *a_dbk = newAV ();
AV *a_grp = newAV ();
SV *t_nm;
char *tname = "?";
char **tnames = NULL;
int nn;
UOPTS tops = ti->tblopts;
if (ufchtnm (txid, tid, &nn, &tnames, &status))
tname = tnames[0];
t_nm = newSVpv (tname, 0);
(void)hv_store (h_dbt, "AID", 3, newSViv (aid), 0);
(void)hv_store (h_dbt, "ANAME", 5, SvREFCNT_inc (A_anm[aid]), 0);
(void)hv_store (h_dbt, "TID", 3, newSViv (tid), 0);
(void)hv_store (h_dbt, "NAME", 4, t_nm, 0);
(void)hv_store (h_dbt, "OPTIONS", 7, newSViv (tops), 0);
(void)hv_store (h_dbt, "DIRECTKEY", 9, newSViv (tops & DB_DIRECT ? 1 : 0), 0);
(void)hv_store (h_dbt, "SCATTERED", 9, newSViv (tops & DB_SCATTR ? 1 : 0), 0);
(void)hv_store (h_dbt, "FIXEDSIZE", 9, newSViv (tops & DB_FIXSIZE ? 1 : 0), 0);
(void)hv_store (h_dbt, "EXPNUM", 6, newSViv (ti->expnum), 0);
(void)hv_store (h_dbt, "PKEYED", 6, newSViv (tops & DB_KEYED ? 1 : 0), 0);
(void)hv_store (h_dbt, "COLUMNS", 7, newRV_noinc ((SV *)a_dbc), 0);
(void)hv_store (h_dbt, "KEY", 3, newRV_noinc ((SV *)a_dbk), 0);
(void)hv_store (h_dbt, "CGRP", 4, newRV_noinc ((SV *)a_grp), 0);
/* do I want to keep the ti->tbldesc as DESCRIPTION ? */
/* No need here to store nvol, nbtree, nhsh, and nlnk yet */
(void)av_store (a_tbl, tid, newRV_noinc ((SV *)h_dbt));
if (A_tbl[aid]) av_push (A_tbl[aid], newSViv (tid));
for (c = 0; c < ti->nkey; c++)
av_push (a_dbk, newSViv (ti->keycidl[c]));
if ((cinfl = (UCOLINF *)calloc (ti->ncol, sizeof (UCOLINF))) != NULL &&
(csl = (USTATUS *)calloc (ti->ncol, sizeof (USTATUS))) != NULL &&
uinfcol (txid, ti->ncol, cl, UALLINFO, cinfl, csl, &status)) {
for (c = 0; c < ti->ncol; c++) {
UCID cid = cl[c];
UCOLINF *ci = &cinfl[c];
HV *h_dbc = newHV ();
char *cname = "?";
char **cnames = NULL;
UOPTS cops = ci->colopts;
int ctyp = ci->coltyp;
int pkey = cops & DB_COLKEY ? 1 : 0;
AV *a_plnk = newAV ();
if (ufchcnm (txid, cid, &nn, &cnames, &status))
cname = cnames[0];
if (ti->nkey > 1) { /* Combined keys */
int kc;
for (kc = 0; kc < ti->nkey; kc++) {
if (ti->keycidl[kc] == cid) pkey++;
}
}
av_push (a_dbc, newSViv (cid));
(void)hv_store (h_dbc, "TID", 3, newSViv (tid), 0);
(void)hv_store (h_dbc, "TNAME", 5, SvREFCNT_inc (t_nm), 0);
(void)hv_store (h_dbc, "CID", 3, newSViv (cid), 0);
(void)hv_store (h_dbc, "NAME", 4, newSVpv (cname, 0), 0);
(void)hv_store (h_dbc, "TYPE", 4, newSViv (ctyp), 0);
(void)hv_store (h_dbc, "LENGTH", 6, newSViv (ci->collen), 0);
(void)hv_store (h_dbc, "SCALE", 5, newSViv (ci->colscl), 0);
(void)hv_store (h_dbc, "NULLABLE", 8, newSViv (cops &
(DB_NONULL | DB_COLKEY) ? 0 : 1), 0);
(void)hv_store (h_dbc, "DSP_LEN", 7, newSViv (ci->dsplen), 0);
(void)hv_store (h_dbc, "DSP_SCL", 7, newSViv (ci->dspscl), 0);
(void)hv_store (h_dbc, "DSP_PICT", 8, newSVpv (ci->dsppict, 0), 0);
(void)hv_store (h_dbc, "OPTIONS", 7, newSViv (cops), 0);
(void)hv_store (h_dbc, "PKEY", 4, newSViv (pkey), 0);
(void)hv_store (h_dbc, "RDONLY", 6, newSViv (cops & DB_RDONLY ? 1 : 0), 0);
(void)hv_store (h_dbc, "UNIQUE", 6, newSViv (cops & DB_UNIQUE ? 1 : 0), 0);
(void)hv_store (h_dbc, "LINK", 4, newSViv (a_lnk && cid <= a_lnk[0]
&& a_lnk[cid] > 0 ? a_lnk[cid] : -1), 0);
(void)hv_store (h_dbc, "REFS", 4, newRV_noinc ((SV *)a_plnk), 0);
(void)hv_store (h_dbc, "NBTREE", 6, newSViv (ci->nbt), 0);
(void)hv_store (h_dbc, "NHASH", 5, newSViv (ci->nhsh), 0);
(void)hv_store (h_dbc, "NPLINK", 6, newSViv (ci->nplnk), 0);
(void)hv_store (h_dbc, "NCLINK", 6, newSViv (ci->nclnk), 0);
(void)av_store (a_fld, cid, newRV_noinc ((SV *)h_dbc));
if (ci->nplnk && a_lnk && a_lnk[0]) {
int lc;
for (lc = 1; lc < a_lnk[0]; lc++) {
if (a_lnk[lc] == cid)
av_push (a_plnk, newSViv (lc));
}
}
if (cnames) free (cnames);
}
free (cinfl);
}
/* Fetch col-groups */
if (uallcgp (txid, tid, USLCK, &g, &cidl, &status)) {
UCGPINF *lcg = (UCGPINF *)calloc (g, sizeof (UCGPINF));
USTATUS *lsl = (USTATUS *)calloc (g, sizeof (USTATUS));
if (g && lcg && lsl && uinfcgp (txid, g, cidl, UNOCLASS, lcg, lsl, &status)) {
int i, j, x = 0;
for (i = 0; i < g; i++) {
if (lcg[i].ncol > 0) {
HV *h_grp = newHV ();
AV *a_cid = newAV ();
for (j = 0; j < lcg[i].ncol; j++)
(void)av_store (a_cid, j, newSViv (lcg[i].grpcidl[j]));
(void)hv_store (h_grp, "CID", 3, newSViv (lcg[i].cid), 0);
(void)hv_store (h_grp, "TYPE", 4, newSViv (lcg[i].coltyp), 0);
(void)hv_store (h_grp, "COLUMNS", 7, newRV_noinc ((SV *)a_cid), 0);
(void)av_store (a_grp, x++, newRV_noinc ((SV *)h_grp));
}
}
}
if (lcg) free (lcg);
if (lsl) free (lsl);
if (g) free (cidl);
}
if (csl) free (csl);
if (tnames) free (tnames);
}
free (tinfl);
}
if (tsl) free (tsl);
free (tidl);
}
free (A_tbl);
if (a_lnk) free (a_lnk);
if (A_anm) free (A_anm);
/* Committing and disconnecting disables all subsequent actions
unless (ucmttx (txid, &status))
warn ("Cannot commit transaction: %s\n", u_err (status));
unless (uclsdb (dbid, DB_NOLOCK, &status)) {
warn ("Cannot close database connection: %s\n", u_err (status));
return;
}
*/
} /* _db_dict */
void dbd_st_destroy (SV *, imp_sth_t *); /* Forward ref */
/* Until those babys are able to change their own dirty nappies ... */
static void change_offspring (SV *dbh, imp_dbh_t *imp_dbh) {
imp_sth_t **children;
int i, n;
/* Make this function extremely precautious ;-P */
unless (imp_dbh) return;
unless (children = imp_dbh->children) return;
unless ((n = imp_dbh->nchildren) > 0) return;
for (i = 0; i < n; i++) {
imp_sth_t *imp_sth = children[i];
if (!imp_sth || imp_sth->stat > ST_STAT_OPEN
|| imp_sth->stat & ST_STAT_OPEN) continue;
if (2 > DBIc_TRACE_LEVEL (imp_sth) && 2 > dbd_verbose) {
dbg (3, "-- %03d/%03d 0x%08X %02X",
i + 1, n, imp_sth, imp_sth ? imp_sth->stat : 0);
if (imp_sth && imp_sth->statement)
dbg (3, " '%s'", imp_sth->statement);
dbg (3, "\n");
}
dbd_st_destroy (dbh, imp_sth);
}
} /* change_offspring */
static void dbd_st_diaper (imp_dbh_t *imp_dbh, imp_sth_t *imp_sth) {
imp_sth_t **children = imp_dbh->children;
int i, n = imp_dbh->nchildren;
for (i = 0; i < n; i++) {
if (children[i]) continue;
children[i] = imp_sth;
return;
}
if (n) imp_dbh->children = (imp_sth_t **)realloc ((void *)imp_dbh->children, (imp_dbh->nchildren + 1) * sizeof (imp_sth_t *));
else imp_dbh->children = (imp_sth_t **) malloc (sizeof (imp_sth_t *));
if (imp_dbh->children) imp_dbh->children[imp_dbh->nchildren++] = imp_sth;
else imp_dbh->nchildren = 0;
} /* dbd_st_diaper */
static void dbd_st_growup (imp_dbh_t *imp_dbh, imp_sth_t *imp_sth) {
imp_sth_t **children = imp_dbh->children;
int i, n = imp_dbh->nchildren;
for (i = 0; i <= n; i++) {
unless (children[i] == imp_sth) continue;
imp_dbh->children[i] = 0;
return;
}
} /* dbd_st_growup */
int dbd_db_commit (SV *dbh, imp_dbh_t *imp_dbh) {
dTHX;
dbg (3, "DBD::Unify::db_commit\n");
unless (DBIc_ACTIVE (imp_dbh))
return (0);
change_offspring (dbh, imp_dbh);
/* Check for commit () being called whilst refs to cursors
* still exists. This needs some more thought.
*/
if (DBIc_ACTIVE_KIDS (imp_dbh) && DBIc_WARN (imp_dbh) && !PL_dirty) {
warn ("DBD::Unify::db_commit (%s) invalidates %d active cursor(s)",
SvPV_nolen (dbh), (int)DBIc_ACTIVE_KIDS (imp_dbh));
}
EXEC SQL
COMMIT WORK;
return (sqlError (dbh));
} /* dbd_db_commit */
int dbd_db_rollback (SV *dbh, imp_dbh_t *imp_dbh) {
dTHX;
dbg (3, "DBD::Unify::db_rollback\n");
unless (DBIc_ACTIVE (imp_dbh))
return (0);
change_offspring (dbh, imp_dbh);
/* Check for rollback () being called whilst refs to cursors
* still exists. See dbd_db_commit ()
*/
if (DBIc_ACTIVE_KIDS (imp_dbh) && DBIc_WARN (imp_dbh) && !PL_dirty) {
warn ("DBD::Unify::db_rollback (%s) invalidates %d active cursor(s)",
SvPV_nolen (dbh), (int)DBIc_ACTIVE_KIDS (imp_dbh));
}
EXEC SQL
ROLLBACK WORK;
return (sqlError (dbh));
} /* dbd_db_rollback */
int dbd_db_dict (SV *dbh, int reload) {
dTHX;
D_imp_dbh (dbh);
dbg (3, "DBD::Unify::db_dict (%d)\n", reload);
_db_dict (reload);
sv_setsv (DEFSV, newRV_noinc ((SV *)h_dd)); /* $_ = \%db */
return (1);
} /* dbd_db_dict */
int dbd_db_do (SV *dbh, char *statement) {
dTHX;
D_imp_dbh (dbh);
dbg (3, "DBD::Unify::db_do (\"%s\")\n", statement);
unless (DBIc_ACTIVE (imp_dbh))
return (0);
if (strlen (statement) >= MAX_SQL_LEN) {
warn ("DBD::Unify::db_do (\"%.40s ...\") statement too long", statement);
return (0);
}
(void)strcpy (u_sql_do, statement);
EXEC SQL
EXECUTE IMMEDIATE :u_sql_do;
dbg (4, " After execute, sqlcode = %d\n", SQLCODE);
unless (sqlError (dbh))
return (0);
return (1);
} /* dbd_db_do */
int dbd_db_disconnect (SV *dbh, imp_dbh_t *imp_dbh) {
dTHX;
dbg (3, "DBD::Unify::db_disconnect\n");
unless (DBIc_ACTIVE (imp_dbh))
return (0);
change_offspring (dbh, imp_dbh);
if (imp_dbh->nchildren) {
if (imp_dbh->children) free ((void *)imp_dbh->children);
imp_dbh->children = (imp_sth_t **)0;
imp_dbh->nchildren = 0;
}
if (DBIc_ACTIVE_KIDS (imp_dbh) && DBIc_WARN (imp_dbh) && !PL_dirty) {
warn ("DBD::Unify::db_disconnect (%s) invalidates %d active cursor(s)",
SvPV_nolen (dbh), (int)DBIc_ACTIVE_KIDS (imp_dbh));
}
DBIc_ACTIVE_off (imp_dbh);
EXEC SQL
DISCONNECT;
dbg (4, " After disconn, sqlcode = %d\n", SQLCODE);
imp_dbh->id = 0;
/* We assume that disconnect will always work
* since most errors imply already disconnected.
*/
return (sqlError (dbh));
} /* dbd_db_disconnect */
int dbd_discon_all (SV *drh, imp_drh_t *imp_drh) {
dTHX;
if (!PL_dirty && !SvTRUE (perl_get_sv ("DBI::PERL_ENDING", 0))) {
sv_setiv (DBIc_ERR (imp_drh), (IV)1);
sv_setpv (DBIc_ERRSTR (imp_drh), "disconnect_all not implemented");
(void)DBIh_EVENT2 (drh, ERROR_event, DBIc_ERR (imp_drh), DBIc_ERRSTR (imp_drh));
return (FALSE);
}
if (PL_perl_destruct_level)
PL_perl_destruct_level = 0;
return (FALSE);
} /* dbd_discon_all */
void dbd_db_destroy (SV *dbh, imp_dbh_t *imp_dbh) {
dTHX;
dbg (3, "DBD::Unify::db_destroy\n");
if (DBIc_ACTIVE (imp_dbh))
dbd_db_disconnect (dbh, imp_dbh);
DBIc_IMPSET_off (imp_dbh);
/* No, share it among all DB handles
(void)free (sth_id_on);
*/
} /* dbd_db_destroy */
int dbd_db_STORE_attrib (SV *dbh, imp_dbh_t *imp_dbh, SV *keysv, SV *valuesv) {
dTHX;
STRLEN kl;
char *key = SvPV (keysv, kl);
unless (DBIc_ACTIVE (imp_dbh))
return (0);
if (kl == 11 && (strEQ (key, "uni_verbose") || strEQ (key, "dbd_verbose"))) {
dbd_verbose = SvIV (valuesv); /* dbd_verbose in DBD::Oracle since 1.22 :) */
dbg (2, "Set DBD_VERBOSE = %d\n", dbd_verbose);
return (TRUE);
}
if (kl == 10 && strEQ (key, "AutoCommit")) {
DBIc_set (imp_dbh, DBIcf_AutoCommit, 0); /* Allways off */
return (TRUE);
}
if (kl == 11 && strEQ (key, "uni_unicode")) {
imp_dbh->unicode = SvOK (valuesv) && SvTRUE (valuesv) ? 1 : 0;
return (TRUE);
}
if ((kl == 13 && strEQ (key, "uni_scanlevel")) ||
(kl == 9 && strEQ (key, "ScanLevel"))) {
auto int val = SvIV (valuesv);
dbg (3, "DBD::Unify::dbd_db_STORE (ScanLevel = %d)\n", val);
if (val < 1 || val > 16)
return (FALSE);
(void)sprintf (u_sql_do, "set transaction scan level %d", val);
EXEC SQL
EXECUTE IMMEDIATE :u_sql_do;
dbg (4, " After SCANLVL, sqlcode = %d\n", SQLCODE);
unless (sqlError (dbh))
return (FALSE);
return (TRUE);
}
return (FALSE);
} /* dbd_db_STORE_attrib */
SV *dbd_db_FETCH_attrib (SV *dbh, imp_dbh_t *imp_dbh, SV *keysv) {
dTHX;
STRLEN kl;
char *key = SvPV (keysv, kl);
unless (DBIc_ACTIVE (imp_dbh))
return (NULL);
if (kl == 11 && (strEQ (key, "uni_verbose") || strEQ (key, "dbd_verbose")))
return (newSViv (dbd_verbose));
if (kl == 11 && strEQ (key, "uni_unicode"))