Annotation of embedaddon/php/ext/mysqli/mysqli_result_iterator.c, revision 1.1
1.1 ! misho 1: /*
! 2: +----------------------------------------------------------------------+
! 3: | PHP Version 5 |
! 4: +----------------------------------------------------------------------+
! 5: | Copyright (c) 1997-2012 The PHP Group |
! 6: +----------------------------------------------------------------------+
! 7: | This source file is subject to version 3.01 of the PHP license, |
! 8: | that is bundled with this package in the file LICENSE, and is |
! 9: | available through the world-wide-web at the following url: |
! 10: | http://www.php.net/license/3_01.txt |
! 11: | If you did not receive a copy of the PHP license and are unable to |
! 12: | obtain it through the world-wide-web, please send a note to |
! 13: | license@php.net so we can mail you a copy immediately. |
! 14: +----------------------------------------------------------------------+
! 15: | Authors: Georg Richter <georg@php.net> |
! 16: | Andrey Hristov <andrey@php.net> |
! 17: | Ulf Wendel <uw@php.net> |
! 18: +----------------------------------------------------------------------+
! 19:
! 20: $Id: mysqli.c 299335 2010-05-13 11:05:09Z andrey $
! 21: */
! 22:
! 23: #ifdef HAVE_CONFIG_H
! 24: #include "config.h"
! 25: #endif
! 26:
! 27: #include <signal.h>
! 28:
! 29: #include "php.h"
! 30: #include "php_ini.h"
! 31: #include "php_mysqli_structs.h"
! 32: #include "mysqli_priv.h"
! 33: #include "zend_interfaces.h"
! 34:
! 35:
! 36: extern zend_object_iterator_funcs php_mysqli_result_iterator_funcs;
! 37:
! 38: typedef struct {
! 39: zend_object_iterator intern;
! 40: mysqli_object *result;
! 41: zval *current_row;
! 42: my_longlong row_num;
! 43: } php_mysqli_result_iterator;
! 44:
! 45:
! 46: /* {{{ */
! 47: zend_object_iterator *php_mysqli_result_get_iterator(zend_class_entry *ce, zval *object, int by_ref TSRMLS_DC)
! 48: {
! 49: php_mysqli_result_iterator *iterator;
! 50:
! 51: if (by_ref) {
! 52: zend_error(E_ERROR, "An iterator cannot be used with foreach by reference");
! 53: }
! 54: iterator = ecalloc(1, sizeof(php_mysqli_result_iterator));
! 55:
! 56: Z_ADDREF_P(object);
! 57: iterator->intern.data = (void*)object;
! 58: iterator->intern.funcs = &php_mysqli_result_iterator_funcs;
! 59: iterator->result = (mysqli_object *) zend_object_store_get_object(object TSRMLS_CC);
! 60: iterator->row_num = -1;
! 61:
! 62: return (zend_object_iterator*)iterator;
! 63: }
! 64: /* }}} */
! 65:
! 66:
! 67: /* {{{ */
! 68: static void php_mysqli_result_iterator_dtor(zend_object_iterator *iter TSRMLS_DC)
! 69: {
! 70: php_mysqli_result_iterator *iterator = (php_mysqli_result_iterator*) iter;
! 71:
! 72: /* cleanup handled in sxe_object_dtor as we dont always have an iterator wrapper */
! 73: if (iterator->intern.data) {
! 74: zval_ptr_dtor((zval**)&iterator->intern.data);
! 75: }
! 76: if (iterator->current_row) {
! 77: zval_ptr_dtor(&iterator->current_row);
! 78: }
! 79: efree(iterator);
! 80: }
! 81: /* }}} */
! 82:
! 83:
! 84: /* {{{ */
! 85: static int php_mysqli_result_iterator_valid(zend_object_iterator *iter TSRMLS_DC)
! 86: {
! 87: php_mysqli_result_iterator *iterator = (php_mysqli_result_iterator*) iter;
! 88:
! 89: return iterator->current_row && Z_TYPE_P(iterator->current_row) == IS_ARRAY ? SUCCESS : FAILURE;
! 90: }
! 91: /* }}} */
! 92:
! 93:
! 94: /* {{{ */
! 95: static void php_mysqli_result_iterator_current_data(zend_object_iterator *iter, zval ***data TSRMLS_DC)
! 96: {
! 97: php_mysqli_result_iterator *iterator = (php_mysqli_result_iterator*) iter;
! 98:
! 99: *data = &iterator->current_row;
! 100: }
! 101: /* }}} */
! 102:
! 103:
! 104: /* {{{ */
! 105: static void php_mysqli_result_iterator_move_forward(zend_object_iterator *iter TSRMLS_DC)
! 106: {
! 107:
! 108: php_mysqli_result_iterator *iterator = (php_mysqli_result_iterator*) iter;
! 109: mysqli_object *intern = iterator->result;
! 110: MYSQL_RES *result;
! 111:
! 112: MYSQLI_FETCH_RESOURCE_BY_OBJ(result, MYSQL_RES *, intern, "mysqli_result", MYSQLI_STATUS_VALID);
! 113: if (iterator->current_row) {
! 114: zval_ptr_dtor(&iterator->current_row);
! 115: }
! 116: MAKE_STD_ZVAL(iterator->current_row);
! 117: php_mysqli_fetch_into_hash_aux(iterator->current_row, result, MYSQLI_ASSOC TSRMLS_CC);
! 118: if (Z_TYPE_P(iterator->current_row) == IS_ARRAY) {
! 119: iterator->row_num++;
! 120: }
! 121: }
! 122: /* }}} */
! 123:
! 124:
! 125: /* {{{ */
! 126: static void php_mysqli_result_iterator_rewind(zend_object_iterator *iter TSRMLS_DC)
! 127: {
! 128: php_mysqli_result_iterator *iterator = (php_mysqli_result_iterator*) iter;
! 129: mysqli_object *intern = iterator->result;
! 130: MYSQL_RES *result;
! 131:
! 132: MYSQLI_FETCH_RESOURCE_BY_OBJ(result, MYSQL_RES *, intern, "mysqli_result", MYSQLI_STATUS_VALID);
! 133:
! 134: if (mysqli_result_is_unbuffered(result)) {
! 135: #if MYSQLI_USE_MYSQLND
! 136: if (result->unbuf->eof_reached) {
! 137: #else
! 138: if (result->eof) {
! 139: #endif
! 140: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Data fetched with MYSQLI_USE_RESULT can be iterated only once");
! 141: return;
! 142: }
! 143: } else {
! 144: mysql_data_seek(result, 0);
! 145: }
! 146: iterator->row_num = -1;
! 147: php_mysqli_result_iterator_move_forward(iter TSRMLS_CC);
! 148: }
! 149: /* }}} */
! 150:
! 151:
! 152: /* {{{ php_mysqli_result_iterator_current_key */
! 153: static int php_mysqli_result_iterator_current_key(zend_object_iterator *iter, char **str_key, uint *str_key_len, ulong *int_key TSRMLS_DC)
! 154: {
! 155: php_mysqli_result_iterator *iterator = (php_mysqli_result_iterator*) iter;
! 156:
! 157: *int_key = (ulong) iterator->row_num;
! 158: return HASH_KEY_IS_LONG;
! 159: }
! 160: /* }}} */
! 161:
! 162:
! 163: /* {{{ php_mysqli_result_iterator_funcs */
! 164: zend_object_iterator_funcs php_mysqli_result_iterator_funcs = {
! 165: php_mysqli_result_iterator_dtor,
! 166: php_mysqli_result_iterator_valid,
! 167: php_mysqli_result_iterator_current_data,
! 168: php_mysqli_result_iterator_current_key,
! 169: php_mysqli_result_iterator_move_forward,
! 170: php_mysqli_result_iterator_rewind,
! 171: };
! 172: /* }}} */
! 173:
! 174:
! 175: /*
! 176: * Local variables:
! 177: * tab-width: 4
! 178: * c-basic-offset: 4
! 179: * End:
! 180: * vim600: noet sw=4 ts=4 fdm=marker
! 181: * vim<600: noet sw=4 ts=4
! 182: */
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