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leveldb.c
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leveldb.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2016 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: |
| http://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: Reeze Xia <reeze@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "ext/standard/info.h"
#include "Zend/zend_exceptions.h"
#include "Zend/zend_interfaces.h"
#include "php_leveldb.h"
#include <leveldb/c.h>
#define LEVELDB_CHECK_OPEN_BASEDIR(file) \
if (php_check_open_basedir((file))){ \
RETURN_FALSE; \
}
#define PHP_LEVELDB_ERROR_DB_CLOSED 1
#define PHP_LEVELDB_ERROR_ITERATOR_CLOSED 2
#define LEVELDB_CHECK_DB_NOT_CLOSED(db_object) \
if ((db_object)->db == NULL) { \
zend_throw_exception(php_leveldb_ce_LevelDBException, "Can not operate on closed db", PHP_LEVELDB_ERROR_DB_CLOSED); \
return; \
}
/* PHP-LevelDB MAGIC identifier don't change this */
#define PHP_LEVELDB_CUSTOM_COMPARATOR_NAME "php_leveldb.custom_comparator"
#define php_leveldb_obj_new(class_type, ce) \
class_type *intern; \
\
intern = (class_type *)ecalloc(1, sizeof(class_type) + zend_object_properties_size(ce)); \
\
zend_object_std_init(&intern->std, ce); \
object_properties_init(&intern->std, ce); \
\
intern->std.handlers = & class_type##_handlers; \
\
return &intern->std;
#define LEVELDB_CHECK_ERROR(err) \
if ((err) != NULL) { \
zend_throw_exception(php_leveldb_ce_LevelDBException, err, 0); \
leveldb_free(err); \
return; \
}
/* {{{ leveldb_functions[]
*/
const zend_function_entry leveldb_functions[] = {
PHP_FE_END /* Must be the last line in leveldb_functions[] */
};
/* }}} */
/* {{{ leveldb_module_entry
*/
zend_module_entry leveldb_module_entry = {
STANDARD_MODULE_HEADER,
"leveldb",
leveldb_functions,
PHP_MINIT(leveldb),
PHP_MSHUTDOWN(leveldb),
NULL,
NULL,
PHP_MINFO(leveldb),
PHP_LEVELDB_VERSION,
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_LEVELDB
ZEND_GET_MODULE(leveldb)
#endif
/* Handlers */
static zend_object_handlers leveldb_object_handlers;
static zend_object_handlers leveldb_snapshot_object_handlers;
static zend_object_handlers leveldb_write_batch_object_handlers;
static zend_object_handlers leveldb_iterator_object_handlers;
/* Class entries */
zend_class_entry *php_leveldb_ce_LevelDBException;
zend_class_entry *php_leveldb_class_entry;
zend_class_entry *php_leveldb_write_batch_class_entry;
zend_class_entry *php_leveldb_iterator_class_entry;
zend_class_entry *php_leveldb_snapshot_class_entry;
/* Objects */
typedef struct {
leveldb_t *db;
/* default read options */
unsigned char verify_check_sum;
unsigned char fill_cache;
/* default write options */
unsigned char sync;
/* custom comparator */
leveldb_comparator_t *comparator;
zend_string *callable_name;
zend_object std;
} leveldb_object;
typedef struct {
leveldb_writebatch_t *batch;
zend_object std;
} leveldb_write_batch_object;
typedef struct {
leveldb_iterator_t *iterator;
leveldb_object *db;
zval zdb;
zend_object std;
} leveldb_iterator_object;
/* define an overloaded iterator structure */
typedef struct {
zend_object_iterator intern;
leveldb_iterator_object *iterator_obj;
zval *current;
} leveldb_iterator_iterator;
typedef struct {
leveldb_object *db;
zval zdb;
leveldb_snapshot_t *snapshot;
zend_object std;
} leveldb_snapshot_object;
#define LEVELDB_INTERNAL_OBJ_FROM_ZOBJ(class_name, obj) ((class_name *)((char *)(obj) - XtOffsetOf(class_name, std)))
#define LEVELDB_INTERNAL_OBJ_FROM_ZV(obj_name, zv) LEVELDB_INTERNAL_OBJ_FROM_ZOBJ(obj_name, Z_OBJ_P(zv))
#define LEVELDB_OBJ_FROM_ZV(zv) LEVELDB_INTERNAL_OBJ_FROM_ZV(leveldb_object, zv)
#define LEVELDB_SNAPSHOT_OBJ_FROM_ZV(zv) LEVELDB_INTERNAL_OBJ_FROM_ZV(leveldb_snapshot_object, zv)
#define LEVELDB_WRITE_BATCH_OBJ_FROM_ZV(zv) LEVELDB_INTERNAL_OBJ_FROM_ZV(leveldb_write_batch_object, zv)
#define LEVELDB_ITERATOR_OBJ_FROM_ZV(zv) LEVELDB_INTERNAL_OBJ_FROM_ZV(leveldb_iterator_object, zv)
#define LEVELDB_OBJ_FROM_ZOBJ(obj) LEVELDB_INTERNAL_OBJ_FROM_ZOBJ(leveldb_object, obj)
#define LEVELDB_SNAPSHOT_OBJ_FROM_ZOBJ(obj) LEVELDB_INTERNAL_OBJ_FROM_ZOBJ(leveldb_snapshot_object, obj)
#define LEVELDB_WRITE_BATCH_OBJ_FROM_ZOBJ(obj) LEVELDB_INTERNAL_OBJ_FROM_ZOBJ(leveldb_write_batch_object, obj)
#define LEVELDB_ITERATOR_OBJ_FROM_ZOBJ(obj) LEVELDB_INTERNAL_OBJ_FROM_ZOBJ(leveldb_iterator_object, obj)
void php_leveldb_object_free(zend_object *std)
{
leveldb_object *obj = LEVELDB_OBJ_FROM_ZOBJ(std);
if (obj->db) {
leveldb_close(obj->db);
}
if (obj->comparator) {
leveldb_comparator_destroy(obj->comparator);
zend_string_release(obj->callable_name);
}
zend_object_std_dtor(std);
}
static zend_object* php_leveldb_object_new(zend_class_entry *class_type)
{
php_leveldb_obj_new(leveldb_object, class_type);
}
/* Write batch object operate */
void php_leveldb_write_batch_object_free(zend_object *std)
{
leveldb_write_batch_object *obj = LEVELDB_WRITE_BATCH_OBJ_FROM_ZOBJ(std);
if (obj->batch) {
leveldb_writebatch_destroy(obj->batch);
}
zend_object_std_dtor(std);
}
static zend_object* php_leveldb_write_batch_object_new(zend_class_entry *class_type)
{
php_leveldb_obj_new(leveldb_write_batch_object, class_type);
}
/* Iterator object operate */
void php_leveldb_iterator_object_free(zend_object *std)
{
leveldb_iterator_object *obj = LEVELDB_ITERATOR_OBJ_FROM_ZOBJ(std);
if (obj->db && obj->db->db && obj->iterator) {
leveldb_iter_destroy(obj->iterator);
/* decr. obj counter */
zval_ptr_dtor(&obj->zdb);
}
zend_object_std_dtor(std);
}
static zend_object* php_leveldb_iterator_object_new(zend_class_entry *class_type)
{
php_leveldb_obj_new(leveldb_iterator_object, class_type);
}
/* Snapshot object operate */
void php_leveldb_snapshot_object_free(zend_object *std)
{
leveldb_t *db;
leveldb_snapshot_object *obj = LEVELDB_SNAPSHOT_OBJ_FROM_ZOBJ(std);
if (obj->snapshot && obj->db) {
if((db = obj->db->db) != NULL) {
leveldb_release_snapshot(db, obj->snapshot);
}
/* decr. obj counter */
zval_ptr_dtor(&obj->zdb);
}
zend_object_std_dtor(std);
}
static zend_object* php_leveldb_snapshot_object_new(zend_class_entry *class_type)
{
php_leveldb_obj_new(leveldb_snapshot_object, class_type);
}
/* arg info */
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_void, 0, 0, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_construct, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, name, IS_STRING, 0)
ZEND_ARG_ARRAY_INFO(0, options, 0)
ZEND_ARG_ARRAY_INFO(0, read_options, 0)
ZEND_ARG_ARRAY_INFO(0, write_options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_get, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_ARG_ARRAY_INFO(0, read_options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_set, 0, 0, 2)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, value, IS_STRING, 0)
ZEND_ARG_ARRAY_INFO(0, write_options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_delete, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_ARG_ARRAY_INFO(0, write_options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_write, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, batch, LevelDBWriteBatch, 0)
ZEND_ARG_ARRAY_INFO(0, write_options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_getProperty, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, name, IS_STRING, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_getApproximateSizes, 0, 0, 2)
ZEND_ARG_ARRAY_INFO(0, start, 0)
ZEND_ARG_ARRAY_INFO(0, limit, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_compactRange, 0, 0, 2)
ZEND_ARG_TYPE_INFO(0, start, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, limit, IS_STRING, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_get_iterator, 0, 0, 0)
ZEND_ARG_ARRAY_INFO(0, options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_destroy, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, name, IS_STRING, 0)
ZEND_ARG_ARRAY_INFO(0, options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_repair, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, name, IS_STRING, 0)
ZEND_ARG_ARRAY_INFO(0, options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_iterator_construct, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, db, LevelDB, 0)
ZEND_ARG_ARRAY_INFO(0, read_options, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_iterator_seek, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_leveldb_snapshot_construct, 0, 0, 1)
ZEND_ARG_OBJ_INFO(0, db, LevelDB, 0)
ZEND_END_ARG_INFO()
/* Methods */
/* {{{ php_leveldb_class_methods */
static zend_function_entry php_leveldb_class_methods[] = {
PHP_ME(LevelDB, __construct, arginfo_leveldb_construct, ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
PHP_ME(LevelDB, get, arginfo_leveldb_get, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, set, arginfo_leveldb_set, ZEND_ACC_PUBLIC)
/* make put an alias of set, since leveldb use put */
PHP_MALIAS(LevelDB, put, set, arginfo_leveldb_set, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, delete, arginfo_leveldb_delete, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, write, arginfo_leveldb_write, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, getProperty, arginfo_leveldb_getProperty, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, getApproximateSizes, arginfo_leveldb_getApproximateSizes, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, compactRange, arginfo_leveldb_compactRange, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, close, arginfo_leveldb_void, ZEND_ACC_PUBLIC | ZEND_ACC_DEPRECATED)
PHP_ME(LevelDB, getIterator, arginfo_leveldb_get_iterator, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, getSnapshot, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDB, destroy, arginfo_leveldb_destroy, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_ME(LevelDB, repair, arginfo_leveldb_repair, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_FE_END
};
/* }}} */
/* {{{ php_leveldb_write_batch_class_methods */
static zend_function_entry php_leveldb_write_batch_class_methods[] = {
PHP_ME(LevelDBWriteBatch, __construct, arginfo_leveldb_void, ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
PHP_ME(LevelDBWriteBatch, set, arginfo_leveldb_set, ZEND_ACC_PUBLIC)
/* make put an alias of set, since leveldb use put */
PHP_MALIAS(LevelDBWriteBatch, put, set, arginfo_leveldb_set, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBWriteBatch, delete, arginfo_leveldb_delete, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBWriteBatch, clear, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_FE_END
};
/* }}} */
/* {{{ php_leveldb_iterator_class_methods */
static zend_function_entry php_leveldb_iterator_class_methods[] = {
PHP_ME(LevelDBIterator, __construct, arginfo_leveldb_iterator_construct, ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
PHP_ME(LevelDBIterator, valid, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, rewind, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, last, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, seek, arginfo_leveldb_iterator_seek, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, next, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, prev, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, key, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, current, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, getError, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_ME(LevelDBIterator, destroy, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_FE_END
};
/* }}} */
/* {{{ php_leveldb_iterator_class_methods */
static zend_function_entry php_leveldb_snapshot_class_methods[] = {
PHP_ME(LevelDBSnapshot, __construct, arginfo_leveldb_snapshot_construct, ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
PHP_ME(LevelDBSnapshot, release, arginfo_leveldb_void, ZEND_ACC_PUBLIC)
PHP_FE_END
};
/* }}} */
static void leveldb_custom_comparator_destructor(void *stat)
{
zval *callable = (zval *)stat;
zval_ptr_dtor(callable);
efree(callable);
}
static int leveldb_custom_comparator_compare(void *stat, const char *a, size_t alen, const char *b, size_t blen)
{
zval *callable = (zval *)stat;
zval params[2], result;
int ret;
ZVAL_STRINGL(¶ms[0], (char *)a, alen);
ZVAL_STRINGL(¶ms[1], (char *)b, blen);
ZVAL_NULL(&result);
assert(!ZVAL_IS_NULL(callable));
if (call_user_function(EG(function_table), NULL, callable, &result, 2, params) == SUCCESS && !Z_ISUNDEF(result)) {
convert_to_long(&result);
ret = Z_LVAL(result);
}else{
ret = 0;
}
zval_ptr_dtor(¶ms[0]);
zval_ptr_dtor(¶ms[1]);
zval_ptr_dtor(&result);
return ret;
}
static const char* leveldb_custom_comparator_name(void *stat)
{
return PHP_LEVELDB_CUSTOM_COMPARATOR_NAME;
}
static inline leveldb_options_t* php_leveldb_get_open_options(zval *options_zv, leveldb_comparator_t **out_comparator, zend_string **callable_name)
{
zval *value;
HashTable *ht;
leveldb_options_t *options = leveldb_options_create();
/* default true */
leveldb_options_set_create_if_missing(options, 1);
if (options_zv == NULL) {
return options;
}
ht = Z_ARRVAL_P(options_zv);
if ((value = zend_hash_str_find(ht, ZEND_STRL("create_if_missing"))) != NULL) {
leveldb_options_set_create_if_missing(options, zend_is_true(value));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("error_if_exists"))) != NULL) {
leveldb_options_set_error_if_exists(options, zend_is_true(value));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("paranoid_checks"))) != NULL) {
leveldb_options_set_paranoid_checks(options, zend_is_true(value));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("write_buffer_size"))) != NULL) {
convert_to_long(value);
leveldb_options_set_write_buffer_size(options, Z_LVAL_P(value));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("max_open_files"))) != NULL) {
convert_to_long(value);
leveldb_options_set_max_open_files(options, Z_LVAL_P(value));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("block_size"))) != NULL) {
convert_to_long(value);
leveldb_options_set_block_size(options, Z_LVAL_P(value));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("block_cache_size"))) != NULL) {
convert_to_long(value);
leveldb_options_set_cache(options, leveldb_cache_create_lru(Z_LVAL_P(value)));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("block_restart_interval"))) != NULL) {
convert_to_long(value);
leveldb_options_set_block_restart_interval(options, Z_LVAL_P(value));
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("compression"))) != NULL) {
convert_to_long(value);
switch (Z_LVAL_P(value))
{
case leveldb_no_compression:
case leveldb_snappy_compression:
#ifdef MOJANG_LEVELDB
case leveldb_zlib_compression:
case leveldb_zlib_raw_compression:
#endif
leveldb_options_set_compression(options, Z_LVAL_P(value));
break;
default:
php_error_docref(NULL, E_WARNING, "Unsupported compression type");
break;
}
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("comparator"))) != NULL
&& !ZVAL_IS_NULL(value)) {
leveldb_comparator_t *comparator;
if (!zend_is_callable(value, 0, callable_name)) {
zend_throw_exception_ex(php_leveldb_ce_LevelDBException, 0,
"Invalid open option: comparator, %s() is not callable", ZSTR_VAL(*callable_name));
zend_string_release(*callable_name);
*callable_name = NULL;
leveldb_options_destroy(options);
return NULL;
}
zval *z2 = (zval *)emalloc(sizeof(zval));
ZVAL_COPY(z2, value);
comparator = leveldb_comparator_create((void *)(z2),
leveldb_custom_comparator_destructor, leveldb_custom_comparator_compare,
leveldb_custom_comparator_name);
if (comparator) {
*out_comparator = comparator;
}
leveldb_options_set_comparator(options, comparator);
}
return options;
}
static inline leveldb_readoptions_t *php_leveldb_get_readoptions(leveldb_object *intern, zval *options_zv)
{
zval *value;
HashTable *ht;
leveldb_readoptions_t *readoptions = leveldb_readoptions_create();
if (options_zv == NULL) {
return readoptions;
}
ht = Z_ARRVAL_P(options_zv);
if ((value = zend_hash_str_find(ht, ZEND_STRL("verify_check_sum"))) != NULL) {
leveldb_readoptions_set_verify_checksums(readoptions, zend_is_true(value));
} else {
leveldb_readoptions_set_verify_checksums(readoptions, intern->verify_check_sum);
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("fill_cache"))) != NULL) {
leveldb_readoptions_set_fill_cache(readoptions, zend_is_true(value));
} else {
leveldb_readoptions_set_fill_cache(readoptions, intern->fill_cache);
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("snapshot"))) != NULL
&& !ZVAL_IS_NULL(value)) {
if (Z_TYPE_P(value) == IS_OBJECT && Z_OBJCE_P(value) == php_leveldb_snapshot_class_entry) {
leveldb_snapshot_object *obj = LEVELDB_SNAPSHOT_OBJ_FROM_ZV(value);
if (obj->snapshot == NULL) {
zend_throw_exception_ex(php_leveldb_ce_LevelDBException, 0,
"Invalid snapshot parameter, it has been released");
leveldb_readoptions_destroy(readoptions);
return NULL;
}
leveldb_readoptions_set_snapshot(readoptions, obj->snapshot);
} else {
zend_throw_exception_ex(php_leveldb_ce_LevelDBException, 0,
"Invalid snapshot parameter, it must be an instance of LevelDBSnapshot");
leveldb_readoptions_destroy(readoptions);
return NULL;
}
}
return readoptions;
}
static inline void php_leveldb_set_readoptions(leveldb_object *intern, zval *options_zv)
{
zval *value;
HashTable *ht;
if (options_zv == NULL) {
return;
}
ht = Z_ARRVAL_P(options_zv);
if ((value = zend_hash_str_find(ht, ZEND_STRL("verify_check_sum"))) != NULL) {
intern->verify_check_sum = zend_is_true(value);
}
if ((value = zend_hash_str_find(ht, ZEND_STRL("fill_cache"))) != NULL) {
intern->fill_cache = zend_is_true(value);
}
}
static inline leveldb_writeoptions_t *php_leveldb_get_writeoptions(leveldb_object *intern, zval *options_zv)
{
zval *value;
HashTable *ht;
leveldb_writeoptions_t *writeoptions = leveldb_writeoptions_create();
if (options_zv == NULL) {
return writeoptions;
}
ht = Z_ARRVAL_P(options_zv);
if ((value = zend_hash_str_find(ht, ZEND_STRL("sync"))) != NULL) {
leveldb_writeoptions_set_sync(writeoptions, zend_is_true(value));
} else {
leveldb_writeoptions_set_sync(writeoptions, intern->sync);
}
return writeoptions;
}
static inline void php_leveldb_set_writeoptions(leveldb_object *intern, zval *options_zv)
{
zval *value;
if (options_zv == NULL) {
return;
}
if ((value = zend_hash_str_find(Z_ARRVAL_P(options_zv), ZEND_STRL("sync"))) != NULL) {
intern->sync = zend_is_true(value);
}
}
/* {{{ proto LevelDB LevelDB::__construct(string $name [, array $options [, array $readoptions [, array $writeoptions]]])
Instantiates a LevelDB object and opens the give database */
PHP_METHOD(LevelDB, __construct)
{
char *name;
size_t name_len;
zval *options_zv = NULL, *readoptions_zv = NULL, *writeoptions_zv = NULL;
char *err = NULL;
leveldb_t *db = NULL;
leveldb_options_t *openoptions;
leveldb_object *intern;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|a!a!a!",
&name, &name_len, &options_zv, &readoptions_zv, &writeoptions_zv) == FAILURE) {
return;
}
LEVELDB_CHECK_OPEN_BASEDIR(name);
intern = LEVELDB_OBJ_FROM_ZV(getThis());
if (intern->db) {
leveldb_close(intern->db);
}
openoptions = php_leveldb_get_open_options(options_zv, &intern->comparator, &intern->callable_name);
if (!openoptions) {
return;
}
php_leveldb_set_readoptions(intern, readoptions_zv);
php_leveldb_set_writeoptions(intern, writeoptions_zv);
db = leveldb_open(openoptions, (const char *)name, &err);
leveldb_options_destroy(openoptions);
LEVELDB_CHECK_ERROR(err);
intern->db = db;
}
/* }}} */
/* {{{ proto mixed LevelDB::get(string $key [, array $read_options])
Returns the value for the given key or false */
PHP_METHOD(LevelDB, get)
{
char *key, *value;
size_t key_len;
size_t value_len;
zval *readoptions_zv = NULL;
char *err = NULL;
leveldb_readoptions_t *readoptions;
leveldb_object *intern;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|z",
&key, &key_len, &readoptions_zv) == FAILURE) {
return;
}
intern = LEVELDB_OBJ_FROM_ZV(getThis());
LEVELDB_CHECK_DB_NOT_CLOSED(intern);
readoptions = php_leveldb_get_readoptions(intern, readoptions_zv);
value = leveldb_get(intern->db, readoptions, key, key_len, &value_len, &err);
leveldb_readoptions_destroy(readoptions);
LEVELDB_CHECK_ERROR(err);
if (value == NULL) {
RETURN_FALSE;
}
RETVAL_STRINGL(value, value_len);
leveldb_free(value);
}
/* }}} */
/* {{{ proto bool LevelDB::set(string $key, string $value [, array $write_options])
An alias method for LevelDB::put() */
/* proto bool LevelDB::put(string $key, string $value [, array $write_options])
Puts the value for the given key */
PHP_METHOD(LevelDB, set)
{
char *key, *value;
size_t key_len, value_len;
zval *writeoptions_zv = NULL;
char *err = NULL;
leveldb_writeoptions_t *writeoptions;
leveldb_object *intern;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss|z",
&key, &key_len, &value, &value_len, &writeoptions_zv) == FAILURE) {
return;
}
intern = LEVELDB_OBJ_FROM_ZV(getThis());
LEVELDB_CHECK_DB_NOT_CLOSED(intern);
writeoptions = php_leveldb_get_writeoptions(intern, writeoptions_zv);
leveldb_put(intern->db, writeoptions, key, key_len, value, value_len, &err);
leveldb_writeoptions_destroy(writeoptions);
LEVELDB_CHECK_ERROR(err);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool LevelDB::delete(string $key [, array $write_options])
Deletes the given key */
PHP_METHOD(LevelDB, delete)
{
char *key;
size_t key_len;
zval *writeoptions_zv = NULL;
char *err = NULL;
leveldb_writeoptions_t *writeoptions;
leveldb_object *intern;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|z",
&key, &key_len, &writeoptions_zv) == FAILURE) {
return;
}
intern = LEVELDB_OBJ_FROM_ZV(getThis());
LEVELDB_CHECK_DB_NOT_CLOSED(intern);
writeoptions = php_leveldb_get_writeoptions(intern, writeoptions_zv);
leveldb_delete(intern->db, writeoptions, key, key_len, &err);
leveldb_writeoptions_destroy(writeoptions);
LEVELDB_CHECK_ERROR(err);
if (err != NULL) {
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool LevelDB::write(LevelDBWriteBatch $batch [, array $write_options])
Executes all of the operations added in the write batch */
PHP_METHOD(LevelDB, write)
{
zval *writeoptions_zv = NULL;
zval *write_batch;
char *err = NULL;
leveldb_object *intern;
leveldb_writeoptions_t *writeoptions;
leveldb_write_batch_object *write_batch_object;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O|z",
&write_batch, php_leveldb_write_batch_class_entry, &writeoptions_zv) == FAILURE) {
return;
}
intern = LEVELDB_OBJ_FROM_ZV(getThis());
LEVELDB_CHECK_DB_NOT_CLOSED(intern);
writeoptions = php_leveldb_get_writeoptions(intern, writeoptions_zv);
write_batch_object = LEVELDB_WRITE_BATCH_OBJ_FROM_ZV(write_batch);
leveldb_write(intern->db, writeoptions, write_batch_object->batch, &err);
leveldb_writeoptions_destroy(writeoptions);
LEVELDB_CHECK_ERROR(err);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto mixed LevelDB::getProperty(string $name)
Returns the property of the db */
PHP_METHOD(LevelDB, getProperty)
{
char *name, *property;
size_t name_len;
leveldb_object *intern;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &name, &name_len) == FAILURE) {
return;
}
intern = LEVELDB_OBJ_FROM_ZV(getThis());
LEVELDB_CHECK_DB_NOT_CLOSED(intern);
property = leveldb_property_value(intern->db, (const char *)name);
if (property == NULL) {
RETURN_FALSE;
}
RETVAL_STRING(property);
leveldb_free(property);
}
/* }}} */
/* {{{ proto void LevelDB::compactRange(string $start, string $limit)
Compact the range between the specified */
PHP_METHOD(LevelDB, compactRange)
{
char *start, *limit;
size_t start_len, limit_len;
leveldb_object *intern;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss", &start, &start_len, &limit, &limit_len) == FAILURE) {
return;
}
intern = LEVELDB_OBJ_FROM_ZV(getThis());
LEVELDB_CHECK_DB_NOT_CLOSED(intern);
leveldb_compact_range(intern->db, (const char *)start, (size_t)start_len, (const char *)limit, (size_t)limit_len);
}
/* }}} */
/* {{{ proto mixed LevelDB::getApproximateSizes(array $start, array $limit)
Get the approximate number of bytes of file system space used by one or more key ranges
or return false on failure */
PHP_METHOD(LevelDB, getApproximateSizes)
{
leveldb_object *intern;
zval *start, *limit, *start_val, *limit_val;
char **start_key, **limit_key;
size_t *start_len, *limit_len;
unsigned int num_ranges, i = 0;
HashPosition pos_start, pos_limit;
uint64_t *sizes;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "aa", &start, &limit) == FAILURE) {
return;
}
intern = LEVELDB_OBJ_FROM_ZV(getThis());
LEVELDB_CHECK_DB_NOT_CLOSED(intern);
num_ranges = zend_hash_num_elements(Z_ARRVAL_P(start));
if (num_ranges != zend_hash_num_elements(Z_ARRVAL_P(limit))) {
php_error_docref(NULL, E_WARNING, "The num of start keys and limit keys didn't match");
RETURN_FALSE;
}
array_init(return_value);
start_key = emalloc(num_ranges * sizeof(char *));
limit_key = emalloc(num_ranges * sizeof(char *));
start_len = emalloc(num_ranges * sizeof(size_t));
limit_len = emalloc(num_ranges * sizeof(size_t));
sizes = emalloc(num_ranges * sizeof(uint64_t));
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(start), &pos_start);
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(limit), &pos_limit);
while ((start_val = zend_hash_get_current_data_ex(Z_ARRVAL_P(start), &pos_start)) != NULL &&
(limit_val = zend_hash_get_current_data_ex(Z_ARRVAL_P(limit), &pos_limit)) != NULL) {
start_key[i] = Z_STRVAL_P(start_val);
start_len[i] = Z_STRLEN_P(start_val);
limit_key[i] = Z_STRVAL_P(limit_val);
limit_len[i] = Z_STRLEN_P(limit_val);
zend_hash_move_forward_ex(Z_ARRVAL_P(start), &pos_start);
zend_hash_move_forward_ex(Z_ARRVAL_P(limit), &pos_limit);
++i;
}
leveldb_approximate_sizes(intern->db, num_ranges,
(const char* const *)start_key, (const size_t *)start_len,
(const char* const *)limit_key, (const size_t *)limit_len, sizes);
for (i = 0; i < num_ranges; ++i) {
add_next_index_long(return_value, sizes[i]);
}
efree(start_key);
efree(start_len);
efree(limit_key);
efree(limit_len);
efree(sizes);
}
/* }}} */
/* {{{ proto bool LevelDB::close()
Close the opened db */
PHP_METHOD(LevelDB, close)
{
if (zend_parse_parameters_none() == FAILURE) {
return;
}
/* NOOP and deprecated function */
RETURN_TRUE;
}
/* }}} */
/* {{{ proto LevelDBIterator LevelDB::getIterator([array $read_options])
Gets a new iterator for the db */
PHP_METHOD(LevelDB, getIterator)
{
zval *readoptions_zv = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|a", &readoptions_zv) == FAILURE) {
return;
}
object_init_ex(return_value, php_leveldb_iterator_class_entry);
#if PHP_VERSION_ID < 80000
zend_call_method(return_value, php_leveldb_iterator_class_entry,
#else
zend_call_method(Z_OBJ_P(return_value), php_leveldb_iterator_class_entry,
#endif
&php_leveldb_iterator_class_entry->constructor, "__construct", sizeof("__construct") - 1,
NULL, (readoptions_zv == NULL ? 1 : 2), getThis(), readoptions_zv);
}
/* }}} */
/* {{{ proto LevelDBSnapshot LevelDB::getSnapshot()
Gets a new snapshot for the db */
PHP_METHOD(LevelDB, getSnapshot)
{
if (zend_parse_parameters_none() == FAILURE) {
return;
}
object_init_ex(return_value, php_leveldb_snapshot_class_entry);
#if PHP_VERSION_ID < 80000
zend_call_method_with_1_params(return_value, php_leveldb_snapshot_class_entry,
&php_leveldb_snapshot_class_entry->constructor, "__construct", NULL, getThis());
#else
zend_call_method_with_1_params(Z_OBJ_P(return_value), php_leveldb_snapshot_class_entry,
&php_leveldb_snapshot_class_entry->constructor, "__construct", NULL, getThis());
#endif
}
/* }}} */
/* {{{ proto bool LevelDB::destroy(string $name [, array $options])
Destroy the contents of the specified database */
PHP_METHOD(LevelDB, destroy)
{
char *name;
size_t name_len;
zval *options_zv = NULL;
char *err = NULL;
zend_string *callable_name = NULL;
leveldb_options_t *options;
leveldb_comparator_t *comparator = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|z",
&name, &name_len, &options_zv) == FAILURE) {
return;
}
LEVELDB_CHECK_OPEN_BASEDIR(name);
options = php_leveldb_get_open_options(options_zv, &comparator, &callable_name);
if (!options) {
return;
}
leveldb_destroy_db(options, name, &err);
if (comparator) {
leveldb_comparator_destroy(comparator);
zend_string_release(callable_name);
}