metadata_topic.c

/*
  +----------------------------------------------------------------------+
  | php-rdkafka                                                          |
  +----------------------------------------------------------------------+
  | Copyright (c) 2016 Arnaud Le Blanc                                   |
  +----------------------------------------------------------------------+
  | 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: Arnaud Le Blanc <arnaud.lb@gmail.com>                        |
  +----------------------------------------------------------------------+
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_rdkafka.h"
#include "php_rdkafka_priv.h"
#include "librdkafka/rdkafka.h"
#include "ext/spl/spl_iterators.h"
#include "Zend/zend_interfaces.h"
#include "metadata_partition.h"
#include "metadata_collection.h"
#include "Zend/zend_exceptions.h"
#include "zeval.h"

typedef struct _object_intern {
#if PHP_MAJOR_VERSION < 7
    zend_object                     std;
#endif
    zval                            zmetadata;
    const rd_kafka_metadata_topic_t *metadata_topic;
#if PHP_MAJOR_VERSION >= 7
    zend_object                     std;
#endif
} object_intern;

static HashTable *get_debug_info(zval *object, int *is_temp TSRMLS_DC);

static zend_class_entry * ce;
static zend_object_handlers handlers;

static void partitions_collection(zval *return_value, zval *parent, object_intern *intern TSRMLS_DC) { /* {{{ */
    kafka_metadata_collection_init(return_value, parent, intern->metadata_topic->partitions, intern->metadata_topic->partition_cnt, sizeof(*intern->metadata_topic->partitions), kafka_metadata_partition_ctor TSRMLS_CC);
}
/* }}} */

static void free_object(zend_object *object TSRMLS_DC) /* {{{ */
{
    object_intern *intern = get_custom_object(object_intern, object);

    if (intern->metadata_topic) {
        zval_dtor(&intern->zmetadata);
    }

    zend_object_std_dtor(&intern->std TSRMLS_CC);

    free_custom_object(intern);
}
/* }}} */

static zend_object_value create_object(zend_class_entry *class_type TSRMLS_DC) /* {{{ */
{
    zend_object_value retval;
    object_intern *intern;

    intern = alloc_object(intern, class_type);
    zend_object_std_init(&intern->std, class_type TSRMLS_CC);
    object_properties_init(&intern->std, class_type);

    STORE_OBJECT(retval, intern, (zend_objects_store_dtor_t) zend_objects_destroy_object, free_object, NULL);
    SET_OBJECT_HANDLERS(retval, &handlers);

    return retval;
}
/* }}} */

static object_intern * get_object(zval *zmt TSRMLS_DC)
{
    object_intern *omt = get_custom_object_zval(object_intern, zmt);

    if (!omt->metadata_topic) {
        zend_throw_exception_ex(NULL, 0 TSRMLS_CC, "RdKafka\\Metadata\\Topic::__construct() has not been called");
        return NULL;
    }

    return omt;
}

static HashTable *get_debug_info(zval *object, int *is_temp TSRMLS_DC) /* {{{ */
{
    zval ary;
    object_intern *intern;
    zeval partitions;

    *is_temp = 1;

    array_init(&ary);

    intern = get_object(object TSRMLS_CC);
    if (!intern) {
        return Z_ARRVAL(ary);
    }

    rdkafka_add_assoc_string(&ary, "topic", intern->metadata_topic->topic);

    MAKE_STD_ZEVAL(partitions);
    partitions_collection(P_ZEVAL(partitions), object, intern TSRMLS_CC);
    add_assoc_zval(&ary, "partitions", P_ZEVAL(partitions));

    add_assoc_long(&ary, "err", intern->metadata_topic->err);

    return Z_ARRVAL(ary);
}
/* }}} */

/* {{{ proto string RdKafka\MetadataTopic::getTopic()
   Topic name */

ZEND_BEGIN_ARG_INFO_EX(arginfo_kafka_metadata_get_topic, 0, 0, 0)
ZEND_END_ARG_INFO()

PHP_METHOD(RdKafka__Metadata__Topic, getTopic)
{
    object_intern *intern;

    if (zend_parse_parameters_none() == FAILURE) {
        return;
    }

    intern = get_object(getThis() TSRMLS_CC);
    if (!intern) {
        return;
    }

    RDKAFKA_RETURN_STRING(intern->metadata_topic->topic);
}
/* }}} */

/* {{{ proto int RdKafka\MetadataTopic::getErr()
   Error */

ZEND_BEGIN_ARG_INFO_EX(arginfo_kafka_metadata_get_err, 0, 0, 0)
ZEND_END_ARG_INFO()

PHP_METHOD(RdKafka__Metadata__Topic, getErr)
{
    object_intern *intern;

    if (zend_parse_parameters_none() == FAILURE) {
        return;
    }

    intern = get_object(getThis() TSRMLS_CC);
    if (!intern) {
        return;
    }

    RETURN_LONG(intern->metadata_topic->err);
}
/* }}} */


/* {{{ proto RdKafka\Metadata\Collection RdKafka\Metadata\Topic::getPartitions()
   Partitions */

ZEND_BEGIN_ARG_INFO_EX(arginfo_kafka_metadata_get_partitions, 0, 0, 0)
ZEND_END_ARG_INFO()

PHP_METHOD(RdKafka__Metadata__Topic, getPartitions)
{
    object_intern *intern;

    if (zend_parse_parameters_none() == FAILURE) {
        return;
    }

    intern = get_object(getThis() TSRMLS_CC);
    if (!intern) {
        return;
    }

    partitions_collection(return_value, getThis(), intern TSRMLS_CC);
}
/* }}} */

static const zend_function_entry fe[] = {
    PHP_ME(RdKafka__Metadata__Topic, getTopic, arginfo_kafka_metadata_get_topic, ZEND_ACC_PUBLIC)
    PHP_ME(RdKafka__Metadata__Topic, getPartitions, arginfo_kafka_metadata_get_partitions, ZEND_ACC_PUBLIC)
    PHP_ME(RdKafka__Metadata__Topic, getErr, arginfo_kafka_metadata_get_err, ZEND_ACC_PUBLIC)
    PHP_FE_END
};

void kafka_metadata_topic_minit(TSRMLS_D)
{
    zend_class_entry tmpce;

    INIT_NS_CLASS_ENTRY(tmpce, "RdKafka\\Metadata", "Topic", fe);
    ce = zend_register_internal_class(&tmpce TSRMLS_CC);
    ce->create_object = create_object;

    handlers = kafka_default_object_handlers;
    handlers.get_debug_info = get_debug_info;
    set_object_handler_free_obj(&handlers, free_object);
    set_object_handler_offset(&handlers, XtOffsetOf(object_intern, std));
}

void kafka_metadata_topic_ctor(zval *return_value, zval *zmetadata, const void *data TSRMLS_DC)
{
    rd_kafka_metadata_topic_t *metadata_topic = (rd_kafka_metadata_topic_t*)data;
    object_intern *intern;

    if (object_init_ex(return_value, ce) != SUCCESS) {
        return;
    }

    intern = get_custom_object_zval(object_intern, return_value);
    if (!intern) {
        return;
    }

    ZVAL_ZVAL(&intern->zmetadata, zmetadata, 1, 0);
    intern->metadata_topic = metadata_topic;
}