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php-src/ext/dba/dba_lmdb.c
KsaR 01b3fc03c3
Update http->https in license (#6945) 
1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as 3.0 states "php 5.1.1, 4.1.1, and earlier".
3. In some license comments is "at through the world-wide-web" while most is without "at", so deleted.
4. fixed indentation in some files before |
2021-05-06 12:16:35 +02:00

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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Anatol Belski <ab@php.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if DBA_LMDB
#include "php_lmdb.h"
#ifdef LMDB_INCLUDE_FILE
#include LMDB_INCLUDE_FILE
#endif
struct php_lmdb_info {
MDB_env *env;
MDB_txn *txn;
MDB_dbi dbi;
MDB_cursor *cur;
};
#define LMDB_IT(it) (((struct php_lmdb_info *)info->dbf)->it)
DBA_OPEN_FUNC(lmdb)
{
MDB_env *env;
MDB_txn *txn;
int rc, mode = 0644, flags = MDB_NOSUBDIR;
zend_long mapsize = 0;
if(info->argc > 0) {
mode = zval_get_long(&info->argv[0]);
if (info->argc > 1) {
mapsize = zval_get_long(&info->argv[1]);
if (mapsize < 0) {
*error = "mapsize must be greater than or equal to zero";
return FAILURE;
}
}
/* TODO implement handling of the additional flags. */
}
rc = mdb_env_create(&env);
if (rc) {
*error = mdb_strerror(rc);
return FAILURE;
}
if (mapsize > 0) {
rc = mdb_env_set_mapsize(env, (size_t) mapsize);
if (rc) {
*error = mdb_strerror(rc);
return FAILURE;
}
}
rc = mdb_env_open(env, info->path, flags, mode);
if (rc) {
*error = mdb_strerror(rc);
return FAILURE;
}
rc = mdb_txn_begin(env, NULL, 0, &txn);
if (rc) {
mdb_env_close(env);
*error = mdb_strerror(rc);
return FAILURE;
}
info->dbf = pemalloc(sizeof(struct php_lmdb_info), info->flags & DBA_PERSISTENT);
if (!info->dbf) {
*error = "Failed to allocate php_lmdb_info.";
return FAILURE;
}
memset(info->dbf, 0, sizeof(struct php_lmdb_info));
rc = mdb_dbi_open(txn, NULL, 0, &LMDB_IT(dbi));
if (rc) {
mdb_env_close(env);
pefree(info->dbf, info->flags & DBA_PERSISTENT);
*error = mdb_strerror(rc);
return FAILURE;
}
LMDB_IT(env) = env;
LMDB_IT(txn) = txn;
mdb_txn_abort(LMDB_IT(txn));
return SUCCESS;
}
DBA_CLOSE_FUNC(lmdb)
{
mdb_dbi_close(LMDB_IT(env), LMDB_IT(dbi));
mdb_env_close(LMDB_IT(env));
pefree(info->dbf, info->flags & DBA_PERSISTENT);
}
DBA_FETCH_FUNC(lmdb)
{
int rc;
MDB_val k, v;
char *ret = NULL;
if (LMDB_IT(cur)) {
rc = mdb_txn_renew(LMDB_IT(txn));
} else {
rc = mdb_txn_begin(LMDB_IT(env), NULL, MDB_RDONLY, &LMDB_IT(txn));
}
if (rc) {
php_error_docref1(NULL, key, E_WARNING, "%s", mdb_strerror(rc));
return NULL;
}
k.mv_size = keylen;
k.mv_data = key;
rc = mdb_get(LMDB_IT(txn), LMDB_IT(dbi), &k, &v);
if (rc) {
if (MDB_NOTFOUND != rc) {
php_error_docref1(NULL, key, E_WARNING, "%s", mdb_strerror(rc));
}
mdb_txn_abort(LMDB_IT(txn));
return NULL;
}
if (v.mv_data) {
if(newlen) *newlen = v.mv_size;
ret = estrndup(v.mv_data, v.mv_size);
}
if (LMDB_IT(cur)) {
mdb_txn_reset(LMDB_IT(txn));
} else {
mdb_txn_abort(LMDB_IT(txn));
}
return ret;
}
DBA_UPDATE_FUNC(lmdb)
{
int rc;
MDB_val k, v;
rc = mdb_txn_begin(LMDB_IT(env), NULL, 0, &LMDB_IT(txn));
if (rc) {
php_error_docref2(NULL, key, val, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
k.mv_size = keylen;
k.mv_data = key;
v.mv_size = vallen;
v.mv_data = val;
rc = mdb_put(LMDB_IT(txn), LMDB_IT(dbi), &k, &v, mode == 1 ? MDB_NOOVERWRITE : 0);
if (rc) {
if (MDB_KEYEXIST != rc) {
php_error_docref2(NULL, key, val, E_WARNING, "%s", mdb_strerror(rc));
}
mdb_txn_abort(LMDB_IT(txn));
return FAILURE;
}
rc = mdb_txn_commit(LMDB_IT(txn));
if (rc) {
php_error_docref2(NULL, key, val, E_WARNING, "%s", mdb_strerror(rc));
mdb_txn_abort(LMDB_IT(txn));
return FAILURE;
}
return SUCCESS;
}
DBA_EXISTS_FUNC(lmdb)
{
int rc;
MDB_val k, v;
if (LMDB_IT(cur)) {
rc = mdb_txn_renew(LMDB_IT(txn));
} else {
rc = mdb_txn_begin(LMDB_IT(env), NULL, MDB_RDONLY, &LMDB_IT(txn));
}
if (rc) {
php_error_docref1(NULL, key, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
k.mv_size = keylen;
k.mv_data = key;
rc = mdb_get(LMDB_IT(txn), LMDB_IT(dbi), &k, &v);
if (rc) {
if (MDB_NOTFOUND != rc) {
php_error_docref1(NULL, key, E_WARNING, "%s", mdb_strerror(rc));
}
mdb_txn_abort(LMDB_IT(txn));
return FAILURE;
}
if (LMDB_IT(cur)) {
mdb_txn_reset(LMDB_IT(txn));
} else {
mdb_txn_abort(LMDB_IT(txn));
}
return SUCCESS;
}
DBA_DELETE_FUNC(lmdb)
{
int rc;
MDB_val k;
rc = mdb_txn_begin(LMDB_IT(env), NULL, 0, &LMDB_IT(txn));
if (rc) {
php_error_docref1(NULL, key, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
k.mv_size = keylen;
k.mv_data = key;
rc = mdb_del(LMDB_IT(txn), LMDB_IT(dbi), &k, NULL);
if (!rc) {
rc = mdb_txn_commit(LMDB_IT(txn));
if (rc) {
php_error_docref1(NULL, key, E_WARNING, "%s", mdb_strerror(rc));
mdb_txn_abort(LMDB_IT(txn));
return FAILURE;
}
return SUCCESS;
}
php_error_docref1(NULL, key, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
DBA_FIRSTKEY_FUNC(lmdb)
{
int rc;
MDB_val k, v;
char *ret = NULL;
rc = mdb_txn_begin(LMDB_IT(env), NULL, MDB_RDONLY, &LMDB_IT(txn));
if (rc) {
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return NULL;
}
rc = mdb_cursor_open(LMDB_IT(txn), LMDB_IT(dbi), &LMDB_IT(cur));
if (rc) {
mdb_txn_abort(LMDB_IT(txn));
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return NULL;
}
rc = mdb_cursor_get(LMDB_IT(cur), &k, &v, MDB_FIRST);
if (rc) {
mdb_txn_abort(LMDB_IT(txn));
mdb_cursor_close(LMDB_IT(cur));
LMDB_IT(cur) = NULL;
if (MDB_NOTFOUND != rc) {
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
}
return NULL;
}
if(k.mv_data) {
if(newlen) *newlen = k.mv_size;
ret = estrndup(k.mv_data, k.mv_size);
}
mdb_txn_reset(LMDB_IT(txn));
return ret;
}
DBA_NEXTKEY_FUNC(lmdb)
{
int rc;
MDB_val k, v;
char *ret = NULL;
rc = mdb_txn_renew(LMDB_IT(txn));
if (rc) {
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return NULL;
}
rc = mdb_cursor_get(LMDB_IT(cur), &k, &v, MDB_NEXT);
if (rc) {
mdb_txn_abort(LMDB_IT(txn));
mdb_cursor_close(LMDB_IT(cur));
LMDB_IT(cur) = NULL;
if (MDB_NOTFOUND != rc) {
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
}
return NULL;
}
if(k.mv_data) {
if(newlen) *newlen = k.mv_size;
ret = estrndup(k.mv_data, k.mv_size);
}
mdb_txn_reset(LMDB_IT(txn));
return ret;
}
DBA_OPTIMIZE_FUNC(lmdb)
{
return SUCCESS;
}
DBA_SYNC_FUNC(lmdb)
{
int rc;
rc = mdb_env_sync(LMDB_IT(env), 1);
if (rc) {
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
return SUCCESS;
}
DBA_INFO_FUNC(lmdb)
{
return estrdup(MDB_VERSION_STRING);
}
#endif
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