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php-src/ext/dba/dba_lmdb.c
Arnaud Le Blanc 11accb5cdf
Preferably include from build dir (#13516) 
* Include from build dir first

This fixes out of tree builds by ensuring that configure artifacts are included
from the build dir.

Before, out of tree builds would preferably include files from the src dir, as
the include path was defined as follows (ignoring includes from ext/ and sapi/) :

    -I$(top_builddir)/main
    -I$(top_srcdir)
    -I$(top_builddir)/TSRM
    -I$(top_builddir)/Zend
    -I$(top_srcdir)/main
    -I$(top_srcdir)/Zend
    -I$(top_srcdir)/TSRM
    -I$(top_builddir)/

As a result, an out of tree build would include configure artifacts such as
`main/php_config.h` from the src dir.

After this change, the include path is defined as follows:

    -I$(top_builddir)/main
    -I$(top_builddir)
    -I$(top_srcdir)/main
    -I$(top_srcdir)
    -I$(top_builddir)/TSRM
    -I$(top_builddir)/Zend
    -I$(top_srcdir)/Zend
    -I$(top_srcdir)/TSRM

* Fix extension include path for out of tree builds

* Include config.h with the brackets form

`#include "config.h"` searches in the directory containing the including-file
before any other include path. This can include the wrong config.h when building
out of tree and a config.h exists in the source tree.

Using `#include <config.h>` uses exclusively the include path, and gives
priority to the build dir.
2024-06-26 00:26:43 +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"
#ifdef 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;
int mode = info->file_permission;
zend_long map_size = info->map_size;
ZEND_ASSERT(map_size >= 0);
/* By default use the MDB_NOSUBDIR flag */
int flags = MDB_NOSUBDIR;
/* Use flags passed by the user for driver flags */
if (info->driver_flags != DBA_DEFAULT_DRIVER_FLAGS) {
ZEND_ASSERT(info->driver_flags >= 0);
switch (info->driver_flags) {
case 0:
case MDB_NOSUBDIR:
flags = info->driver_flags;
break;
default:
zend_argument_value_error(6, "must be either DBA_LMDB_USE_SUB_DIR or DBA_LMDB_NO_SUB_DIR for LMDB driver");
return FAILURE;
}
}
/* Add readonly flag if DB is opened in read only mode */
if (info->mode == DBA_READER) {
flags |= MDB_RDONLY;
}
rc = mdb_env_create(&env);
if (rc) {
*error = mdb_strerror(rc);
return FAILURE;
}
if (map_size > 0) {
rc = mdb_env_set_mapsize(env, (size_t) map_size);
if (rc) {
*error = mdb_strerror(rc);
return FAILURE;
}
}
rc = mdb_env_open(env, ZSTR_VAL(info->path), flags, mode);
if (rc) {
/* If this function [mdb_env_open()] fails, mdb_env_close() must be called to discard the MDB_env handle.
* http://www.lmdb.tech/doc/group__mdb.html#ga32a193c6bf4d7d5c5d579e71f22e9340 */
mdb_env_close(env);
*error = mdb_strerror(rc);
return FAILURE;
}
rc = mdb_txn_begin(env, NULL, /* flags */ MDB_RDONLY, &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;
zend_string *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_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return NULL;
}
k.mv_size = ZSTR_LEN(key);
k.mv_data = ZSTR_VAL(key);
rc = mdb_get(LMDB_IT(txn), LMDB_IT(dbi), &k, &v);
if (rc) {
if (MDB_NOTFOUND != rc) {
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
}
mdb_txn_abort(LMDB_IT(txn));
return NULL;
}
if (v.mv_data) {
ret = zend_string_init(v.mv_data, v.mv_size, /* persistent */ false);
}
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_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
k.mv_size = ZSTR_LEN(key);
k.mv_data = ZSTR_VAL(key);
v.mv_size = ZSTR_LEN(val);
v.mv_data = ZSTR_VAL(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_docref(NULL, 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_docref(NULL, 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_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
k.mv_size = ZSTR_LEN(key);
k.mv_data = ZSTR_VAL(key);
rc = mdb_get(LMDB_IT(txn), LMDB_IT(dbi), &k, &v);
if (rc) {
if (MDB_NOTFOUND != rc) {
php_error_docref(NULL, 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_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
return FAILURE;
}
k.mv_size = ZSTR_LEN(key);
k.mv_data = ZSTR_VAL(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_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
mdb_txn_abort(LMDB_IT(txn));
return FAILURE;
}
return SUCCESS;
}
php_error_docref(NULL, E_WARNING, "%s", mdb_strerror(rc));
mdb_txn_abort(LMDB_IT(txn));
return FAILURE;
}
DBA_FIRSTKEY_FUNC(lmdb)
{
int rc;
MDB_val k, v;
zend_string *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) {
ret = zend_string_init(k.mv_data, k.mv_size, /* persistent */ false);
}
mdb_txn_reset(LMDB_IT(txn));
return ret;
}
DBA_NEXTKEY_FUNC(lmdb)
{
int rc;
MDB_val k, v;
zend_string *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) {
ret = zend_string_init(k.mv_data, k.mv_size, /* persistent */ false);
}
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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