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|
/*
+----------------------------------------------------------------------+
| PHP HTML Embedded Scripting Language Version 3.0 |
+----------------------------------------------------------------------+
| Copyright (c) 2000 PHP Development Team (See Credits file) |
+----------------------------------------------------------------------+
| This program is free software; you can redistribute it and/or modify |
| it under the terms of one of the following licenses: |
| |
| A) the GNU General Public License as published by the Free Software |
| Foundation; either version 2 of the License, or (at your option) |
| any later version. |
| |
| B) the PHP License as published by the PHP Development Team and |
| included in the distribution in the file: LICENSE |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of both licenses referred to here. |
| If you did not, or have any questions about PHP licensing, please |
| contact core@php.net. |
+----------------------------------------------------------------------+
| Authors: Sascha Schumann <sascha@schumann.cx> |
+----------------------------------------------------------------------+
*/
/* $Id: dba_db2.c,v 1.13 2000/07/10 10:15:36 sas Exp $ */
#include "php.h"
#if DBA_DB2
#include "php3_db2.h"
#include <sys/stat.h>
#include <string.h>
#if DB2_DB2_DB_H
#include <db2/db.h>
#elif DB2_DB_DB2_H
#include <db/db2.h>
#elif DB2_DB2_H
#include <db2.h>
#elif DB2_DB_H
#include <db.h>
#endif
#define DB2_DATA dba_db2_data *dba = info->dbf
#define DB2_GKEY \
DBT gkey; \
memset(&gkey, 0, sizeof(gkey)); \
gkey.data = (char *) key; gkey.size = keylen
typedef struct {
DB *dbp;
DBC *cursor;
} dba_db2_data;
DBA_OPEN_FUNC(db2)
{
DB *dbp;
DBTYPE type;
int gmode = 0;
int filemode = 0644;
struct stat check_stat;
type = info->mode == DBA_READER ? DB_UNKNOWN :
info->mode == DBA_TRUNC ? DB_BTREE :
stat(info->path, &check_stat) ? DB_BTREE : DB_UNKNOWN;
gmode = info->mode == DBA_READER ? DB_RDONLY :
info->mode == DBA_CREAT ? DB_CREATE :
info->mode == DBA_WRITER ? 0 :
info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
if(gmode == -1)
return FAILURE;
if(info->argc > 0) {
convert_to_long(info->argv[0]);
filemode = info->argv[0]->value.lval;
}
if(!db_open(info->path, type, gmode, filemode, NULL, NULL, &dbp)) {
info->dbf = malloc(sizeof(dba_db2_data));
memset(info->dbf, 0, sizeof(dba_db2_data));
((dba_db2_data *) info->dbf)->dbp = dbp;
return SUCCESS;
}
return FAILURE;
}
DBA_CLOSE_FUNC(db2)
{
DB2_DATA;
if(dba->cursor) dba->cursor->c_close(dba->cursor);
dba->dbp->close(dba->dbp, 0);
free(dba);
}
DBA_FETCH_FUNC(db2)
{
DBT gval;
char *new = NULL;
DB2_DATA;
DB2_GKEY;
memset(&gval, 0, sizeof(gval));
if(!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
if(newlen) *newlen = gval.size;
new = estrndup(gval.data, gval.size);
}
return new;
}
DBA_UPDATE_FUNC(db2)
{
DBT gval;
DB2_DATA;
DB2_GKEY;
memset(&gval, 0, sizeof(gval));
gval.data = (char *) val;
gval.size = vallen;
if(!dba->dbp->put(dba->dbp, NULL, &gkey, &gval,
mode == 1 ? DB_NOOVERWRITE : 0)) {
return SUCCESS;
}
return FAILURE;
}
DBA_EXISTS_FUNC(db2)
{
DBT gval;
DB2_DATA;
DB2_GKEY;
memset(&gval, 0, sizeof(gval));
if(!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
return SUCCESS;
}
return FAILURE;
}
DBA_DELETE_FUNC(db2)
{
DB2_DATA;
DB2_GKEY;
return dba->dbp->del(dba->dbp, NULL, &gkey, 0) ? FAILURE : SUCCESS;
}
DBA_FIRSTKEY_FUNC(db2)
{
DB2_DATA;
if(dba->cursor) {
dba->cursor->c_close(dba->cursor);
}
dba->cursor = NULL;
#if (DB_VERSION_MAJOR > 2) || (DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR > 6) || (DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR == 6 && DB_VERSION_PATCH >= 4)
if(dba->dbp->cursor(dba->dbp, NULL, &dba->cursor, 0)) {
#else
if(dba->dbp->cursor(dba->dbp, NULL, &dba->cursor)) {
#endif
return NULL;
}
/* we should introduce something like PARAM_PASSTHRU... */
return dba_nextkey_db2(info, newlen);
}
DBA_NEXTKEY_FUNC(db2)
{
DB2_DATA;
DBT gkey, gval;
char *nkey = NULL;
memset(&gkey, 0, sizeof(gkey));
memset(&gval, 0, sizeof(gval));
if(!dba->cursor->c_get(dba->cursor, &gkey, &gval, DB_NEXT)) {
if(gkey.data) {
nkey = estrndup(gkey.data, gkey.size);
if(newlen) *newlen = gkey.size;
}
}
return nkey;
}
DBA_OPTIMIZE_FUNC(db2)
{
return SUCCESS;
}
DBA_SYNC_FUNC(db2)
{
DB2_DATA;
return dba->dbp->sync(dba->dbp, 0) ? FAILURE : SUCCESS;
}
#endif
|
