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php_kafka.c
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php_kafka.c
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/**
* Copyright 2015 Elias Van Ootegem.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Special thanks to Patrick Reilly and Aleksandar Babic for their work
* On which this extension was actually built.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <php.h>
#include <php_kafka.h>
#include "kafka.h"
#include "zend_exceptions.h"
#include "zend_hash.h"
#include <zlib.h>
#include <ctype.h>
#ifdef COMPILE_DL_KAFKA
ZEND_GET_MODULE(kafka)
#endif
#define REGISTER_KAFKA_CLASS_CONST_STRING(ce, name, value) \
zend_declare_class_constant_stringl(ce, name, sizeof(name)-1, value, sizeof(value)-1)
#define REGISTER_KAFKA_CLASS_CONST_LONG(ce, name, value) \
zend_declare_class_constant_long(ce, name, sizeof(name)-1, value)
#define REGISTER_KAFKA_CLASS_CONST(ce, c_name, type) \
REGISTER_KAFKA_CLASS_CONST_ ## type(ce, #c_name, PHP_KAFKA_ ## c_name)
#ifndef BASE_EXCEPTION
#if (PHP_MAJOR_VERSION < 5) || ( ( PHP_MAJOR_VERSION == 5 ) && (PHP_MINOR_VERSION < 2) )
#define BASE_EXCEPTION zend_exception_get_default()
#else
#define BASE_EXCEPTION zend_exception_get_default(TSRMLS_C)
#endif
#endif
#define GET_KAFKA_CONNECTION(varname, thisObj) \
kafka_connection *varname = (kafka_connection *) zend_object_store_get_object( \
thisObj TSRMLS_CC \
)
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginf_kafka__constr, 0, 0, 1)
ZEND_ARG_INFO(0, brokers)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginf_kafka_set_options, 0)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginf_kafka_set_partition, 0, 0, 1)
ZEND_ARG_INFO(0, partition)
ZEND_ARG_INFO(0, mode)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginf_kafka_set_compression, 0)
ZEND_ARG_INFO(0, compression)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginf_kafka_set_log_level, 0)
ZEND_ARG_INFO(0, logLevel)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginf_kafka_get_partitions_for_topic, 0)
ZEND_ARG_INFO(0, topic)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginf_kafka_set_get_partition, 0)
ZEND_ARG_INFO(0, mode)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginf_kafka_produce, 0, 0, 2)
ZEND_ARG_INFO(0, topic)
ZEND_ARG_INFO(0, message)
ZEND_ARG_INFO(0, timeout)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginf_kafka_produce_batch, 0, 0, 2)
ZEND_ARG_INFO(0, topic)
ZEND_ARG_INFO(0, messages)
ZEND_ARG_INFO(0, timeout)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginf_kafka_consume, 0, 0, 2)
ZEND_ARG_INFO(0, topic)
ZEND_ARG_INFO(0, offset)
ZEND_ARG_INFO(0, messageCount)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginf_kafka_is_conn, 0, 0, 0)
ZEND_ARG_INFO(0, mode)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginf_kafka_void, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginf_kafka_disconnect, 0, 0, 0)
ZEND_ARG_INFO(0, mode)
ZEND_END_ARG_INFO()
/* }}} end arginfo */
/* decalre the class entries */
zend_class_entry *kafka_ce;
zend_class_entry *kafka_exception;
/* the method table */
/* each method can have its own parameters and visibility */
static zend_function_entry kafka_functions[] = {
PHP_ME(Kafka, __construct, arginf_kafka__constr, ZEND_ACC_CTOR | ZEND_ACC_PUBLIC)
PHP_ME(Kafka, __destruct, arginf_kafka_void, ZEND_ACC_DTOR | ZEND_ACC_PUBLIC)
PHP_ME(Kafka, setCompression, arginf_kafka_set_compression, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, getCompression, arginf_kafka_void, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, set_partition, arginf_kafka_set_partition, ZEND_ACC_PUBLIC|ZEND_ACC_DEPRECATED)
PHP_ME(Kafka, setPartition, arginf_kafka_set_partition, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, getPartition, arginf_kafka_set_get_partition, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, setLogLevel, arginf_kafka_set_log_level, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, getPartitionsForTopic, arginf_kafka_get_partitions_for_topic, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, getPartitionOffsets, arginf_kafka_get_partitions_for_topic, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, setBrokers, arginf_kafka__constr, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, setOptions, arginf_kafka_set_options, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, getTopics, arginf_kafka_void, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, disconnect, arginf_kafka_disconnect, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, isConnected, arginf_kafka_is_conn, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, produce, arginf_kafka_produce, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, produceBatch, arginf_kafka_produce_batch, ZEND_ACC_PUBLIC)
PHP_ME(Kafka, consume, arginf_kafka_consume, ZEND_ACC_PUBLIC)
{NULL,NULL,NULL} /* Marks the end of function entries */
};
zend_module_entry kafka_module_entry = {
STANDARD_MODULE_HEADER,
"kafka",
kafka_functions, /* Function entries */
PHP_MINIT(kafka), /* Module init */
PHP_MSHUTDOWN(kafka), /* Module shutdown */
PHP_RINIT(kafka), /* Request init */
PHP_RSHUTDOWN(kafka), /* Request shutdown */
NULL, /* Module information */
PHP_KAFKA_VERSION, /* Replace with version number for your extension */
STANDARD_MODULE_PROPERTIES
};
PHP_MINIT_FUNCTION(kafka)
{
zend_class_entry ce,
ce_ex;
INIT_CLASS_ENTRY(ce, "Kafka", kafka_functions);
kafka_ce = zend_register_internal_class(&ce TSRMLS_CC);
INIT_CLASS_ENTRY(ce_ex, "KafkaException", NULL);
kafka_exception = zend_register_internal_class_ex(
&ce_ex,
BASE_EXCEPTION,
NULL TSRMLS_CC
);
//do not allow people to extend this class, make it final
kafka_ce->create_object = create_kafka_connection;
kafka_ce->ce_flags |= ZEND_ACC_FINAL_CLASS;
//offset constants (consume)
REGISTER_KAFKA_CLASS_CONST(kafka_ce, OFFSET_BEGIN, STRING);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, OFFSET_END, STRING);
//compression mode constants
REGISTER_KAFKA_CLASS_CONST(kafka_ce, COMPRESSION_NONE, STRING);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, COMPRESSION_GZIP, STRING);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, COMPRESSION_SNAPPY, STRING);
//global log-mode constants TODO: refactor to ERRMODE constants
REGISTER_KAFKA_CLASS_CONST(kafka_ce, LOG_ON, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, LOG_OFF, LONG);
//connection mode constants
REGISTER_KAFKA_CLASS_CONST(kafka_ce, MODE_CONSUMER, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, MODE_PRODUCER, LONG);
//random partition constant
REGISTER_KAFKA_CLASS_CONST(kafka_ce, PARTITION_RANDOM, LONG);
//config constants:
REGISTER_KAFKA_CLASS_CONST(kafka_ce, RETRY_COUNT, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, RETRY_INTERVAL, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, CONFIRM_DELIVERY, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, QUEUE_BUFFER_SIZE, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, COMPRESSION_MODE, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, LOGLEVEL, LONG);
//confirmation value constants
REGISTER_KAFKA_CLASS_CONST(kafka_ce, CONFIRM_OFF, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, CONFIRM_BASIC, LONG);
REGISTER_KAFKA_CLASS_CONST(kafka_ce, CONFIRM_EXTENDED, LONG);
return SUCCESS;
}
PHP_RSHUTDOWN_FUNCTION(kafka)
{
return SUCCESS;
}
PHP_RINIT_FUNCTION(kafka)
{
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(kafka)
{
return SUCCESS;
}
zend_object_value create_kafka_connection(zend_class_entry *class_type TSRMLS_DC)
{
zend_object_value retval;
kafka_connection *intern;
zval *tmp;
// allocate the struct we're going to use
intern = emalloc(sizeof *intern);
memset(intern, 0, sizeof *intern);
//init partitions to random partitions
intern->consumer_partition = PHP_KAFKA_PARTITION_RANDOM;
intern->producer_partition = PHP_KAFKA_PARTITION_RANDOM;
//set default values
//basic confirmation (wait for success callback)
intern->delivery_confirm_mode = PHP_KAFKA_CONFIRM_BASIC;
//logging = default on (while in development, at least)
intern->log_level = PHP_KAFKA_LOG_ON;
zend_object_std_init(&intern->std, class_type TSRMLS_CC);
//add properties table
#if PHP_VERSION_ID < 50399
zend_hash_copy(
intern->std.properties, &class_type->default_properties,
(copy_ctor_func_t)zval_add_ref,
(void *)&tmp,
sizeof tmp
);
#else
object_properties_init(&intern->std, class_type);
#endif
// create a destructor for this struct
retval.handle = zend_objects_store_put(
intern,
(zend_objects_store_dtor_t) zend_objects_destroy_object,
free_kafka_connection,
NULL TSRMLS_CC
);
retval.handlers = zend_get_std_object_handlers();
return retval;
}
//clean current connections
void free_kafka_connection(void *object TSRMLS_DC)
{
int interval = 1;
kafka_connection *connection = ((kafka_connection *) object);
//no confirmation, wait to close connection a bit longer, for what it's worth
if (connection->delivery_confirm_mode == PHP_KAFKA_CONFIRM_OFF)
interval = 50;
if (connection->brokers)
efree(connection->brokers);
if (connection->compression)
efree(connection->compression);
if (connection->queue_buffer)
efree(connection->queue_buffer);
if (connection->retry_count)
efree(connection->retry_count);
if (connection->retry_interval)
efree(connection->retry_interval);
if (connection->consumer != NULL)
kafka_destroy(
connection->consumer,
1
);
if (connection->producer != NULL)
kafka_destroy(
connection->producer,
interval
);
efree(connection);
}
static
int is_number(const char *str)
{
while (*str != '\0')
{
if (!isdigit(*str))
return 0;
++str;
}
return 1;
}
//parse connection config array, and update connection struct
static int parse_options_array(zval *arr, kafka_connection **conn)
{
zval **entry;
char *assoc_key;
int key_len;
long idx;
HashPosition pos;
//make life easier, dereference struct
kafka_connection *connection = *conn;
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(arr), &pos);
while (zend_hash_get_current_data_ex(Z_ARRVAL_P(arr), (void **)&entry, &pos) == SUCCESS)
{
if (zend_hash_get_current_key_ex(Z_ARRVAL_P(arr), &assoc_key, &key_len, &idx, 0, &pos) == HASH_KEY_IS_STRING)
{
zend_throw_exception(kafka_exception, "Invalid option key, use class constants", 0 TSRMLS_CC);
return -1;
}
else
{
char tmp[128];
switch (idx)
{
case PHP_KAFKA_RETRY_COUNT:
if (Z_TYPE_PP(entry) == IS_STRING && is_number(Z_STRVAL_PP(entry)))
{
if (connection->retry_count)
efree(connection->retry_count);
connection->retry_count = estrdup(Z_STRVAL_PP(entry));
}
else if (Z_TYPE_PP(entry) == IS_LONG)
{
if (connection->retry_count)
efree(connection->retry_count);
snprintf(tmp, 128, "%d", Z_LVAL_PP(entry));
connection->retry_count = estrdup(tmp);
}
else
{
zend_throw_exception(kafka_exception, "Invalid value for Kafka::RETRY_COUNT option, expected numeric value", 0 TSRMLS_CC);
return -1;
}
break;
case PHP_KAFKA_RETRY_INTERVAL:
if (Z_TYPE_PP(entry) == IS_STRING && is_number(Z_STRVAL_PP(entry)))
{
if (connection->retry_interval)
efree(connection->retry_interval);
connection->retry_interval = estrdup(Z_STRVAL_PP(entry));
}
else if (Z_TYPE_PP(entry) == IS_LONG)
{
if (connection->retry_interval)
efree(connection->retry_interval);
snprintf(tmp, 128, "%d", Z_LVAL_PP(entry));
connection->retry_interval = estrdup(tmp);
}
else
{
zend_throw_exception(kafka_exception, "Invalid value for Kafka::RETRY_INTERVAL option, expected numeric value", 0 TSRMLS_CC);
return -1;
}
break;
case PHP_KAFKA_CONFIRM_DELIVERY:
if (
Z_TYPE_PP(entry) != IS_LONG
||
(
Z_LVAL_PP(entry) != PHP_KAFKA_CONFIRM_OFF
&&
Z_LVAL_PP(entry) != PHP_KAFKA_CONFIRM_BASIC
&&
Z_LVAL_PP(entry) != PHP_KAFKA_CONFIRM_EXTENDED
)
)
{
zend_throw_exception(kafka_exception, "Invalid value for Kafka::CONFIRM_DELIVERY, use Kafka::CONFIRM_* constants", 0 TSRMLS_CC);
return -1;
}
connection->delivery_confirm_mode = Z_LVAL_PP(entry);
break;
case PHP_KAFKA_QUEUE_BUFFER_SIZE:
if (Z_TYPE_PP(entry) == IS_STRING && is_number(Z_STRVAL_PP(entry)))
{
if (connection->queue_buffer)
efree(connection->queue_buffer);
connection->queue_buffer = estrdup(Z_STRVAL_PP(entry));
}
else if (Z_TYPE_PP(entry) == IS_LONG)
{
if (connection->queue_buffer)
efree(connection->queue_buffer);
snprintf(tmp, 128, "%d", Z_LVAL_PP(entry));
connection->queue_buffer = estrdup(tmp);
}
else
{
zend_throw_exception(kafka_exception, "Invalid value for Kafka::QUEUE_BUFFER_SIZE, expected numeric value", 0 TSRMLS_CC);
return -1;
}
break;
case PHP_KAFKA_COMPRESSION_MODE:
if (Z_TYPE_PP(entry) != IS_STRING)
{
zend_throw_exception(kafka_exception, "Invalid type for Kafka::COMPRESSION_MODE option, use Kafka::COMPRESSION_* constants", 0 TSRMLS_CC);
return -1;
}
if (
!strcmp(Z_STRVAL_PP(entry), PHP_KAFKA_COMPRESSION_GZIP)
&&
!strcmp(Z_STRVAL_PP(entry), PHP_KAFKA_COMPRESSION_NONE)
&&
!strcmp(Z_STRVAL_PP(entry), PHP_KAFKA_COMPRESSION_SNAPPY)
) {
zend_throw_exception(kafka_exception, "Invalid value for Kafka::COMPRESSION_MODE, use Kafka::COMPRESSION_* constants", 0 TSRMLS_CC);
return -1;
}
if (connection->compression)
efree(connection->compression);
connection->compression = estrdup(Z_STRVAL_PP(entry));
break;
case PHP_KAFKA_LOGLEVEL:
if (Z_TYPE_PP(entry) != IS_LONG ||
(Z_LVAL_PP(entry) != PHP_KAFKA_LOG_OFF && Z_LVAL_PP(entry) != PHP_KAFKA_LOG_ON))
{
zend_throw_exception(kafka_exception, "Invalid value for Kafka::LOGLEVEL option, use Kafka::LOG_* constants", 0 TSRMLS_CC);
return -1;
}
connection->log_level = Z_LVAL_PP(entry);
break;
}
}
zend_hash_move_forward_ex(Z_ARRVAL_P(arr), &pos);
}
return 0;
}
/** {{{ proto void DOMDocument::__construct( string $brokers [, array $options = null]);
Constructor, expects a comma-separated list of brokers to connect to
*/
PHP_METHOD(Kafka, __construct)
{
zval *arr = NULL;
char *brokers = NULL;
int brokers_len = 0;
kafka_connection *connection = (kafka_connection *) zend_object_store_get_object(
getThis() TSRMLS_CC
);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|a",
&brokers, &brokers_len, &arr) == FAILURE) {
return;
}
if (arr)
{
if (parse_options_array(arr, &connection))
return;//we've thrown an exception
}
connection->brokers = estrdup(brokers);
kafka_set_log_level(connection->log_level);
kafka_connect(brokers);
}
/* }}} end Kafka::__construct */
/* {{{ proto bool Kafka::isConnected( [ int $mode ] )
returns true if kafka connection is active, fals if not
Mode defaults to current active mode
*/
PHP_METHOD(Kafka, isConnected)
{
zval *mode = NULL,
*obj = getThis();
long tmp_val = -1;
rd_kafka_type_t type;
GET_KAFKA_CONNECTION(k, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|z", &mode) == FAILURE)
return;
if (mode)
{
if (Z_TYPE_P(mode) == IS_LONG)
tmp_val = Z_LVAL_P(mode);
if (tmp_val != PHP_KAFKA_MODE_CONSUMER && tmp_val != PHP_KAFKA_MODE_PRODUCER)
{
zend_throw_exception(
kafka_exception,
"invalid argument passed to Kafka::isConnected, use Kafka::MODE_* constants",
0 TSRMLS_CC
);
return;
}
if (tmp_val == PHP_KAFKA_MODE_CONSUMER)
type = RD_KAFKA_CONSUMER;
else
type = RD_KAFKA_PRODUCER;
}
else
type = k->rk_type;
if (type == RD_KAFKA_CONSUMER)
{
if (k->consumer != NULL)
{
RETURN_TRUE;
}
RETURN_FALSE;
}
if (k->producer != NULL)
{
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} end bool Kafka::isConnected */
/* {{{ proto void Kafka::__destruct( void )
constructor, disconnects kafka
*/
PHP_METHOD(Kafka, __destruct)
{
int interval = 1;
kafka_connection *connection = (kafka_connection *) zend_object_store_get_object(
getThis() TSRMLS_CC
);
if (connection->delivery_confirm_mode == PHP_KAFKA_CONFIRM_OFF)
interval = 25;
if (connection->brokers)
efree(connection->brokers);
if (connection->queue_buffer)
efree(connection->queue_buffer);
if (connection->retry_count)
efree(connection->retry_count);
if (connection->retry_interval)
efree(connection->retry_interval);
if (connection->compression)
efree(connection->compression);
if (connection->consumer != NULL)
kafka_destroy(
connection->consumer,
1
);
if (connection->producer != NULL)
kafka_destroy(
connection->producer,
interval
);
connection->producer = NULL;
connection->brokers = NULL;
connection->compression = NULL;
connection->consumer = NULL;
connection->queue_buffer = connection->retry_count = connection->retry_interval = NULL;
connection->delivery_confirm_mode = 0;
connection->consumer_partition = connection->producer_partition = PHP_KAFKA_PARTITION_RANDOM;
}
/* }}} end Kafka::__destruct */
/* {{{ proto Kafka Kafka::set_partition( int $partition [, int $mode ] );
Set partition (used by consume method)
This method is deprecated, in favour of the more PSR-compliant
Kafka::setPartition
*/
PHP_METHOD(Kafka, set_partition)
{
zval *partition,
*mode = NULL,
*obj = getThis();
long p_value;
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|z", &partition, &mode) == FAILURE)
return;
if (Z_TYPE_P(partition) != IS_LONG || (mode && Z_TYPE_P(mode) != IS_LONG)) {
zend_throw_exception(kafka_exception, "Partition and/or mode is expected to be an int", 0 TSRMLS_CC);
return;
}
if (mode)
{
if (Z_LVAL_P(mode) != PHP_KAFKA_MODE_CONSUMER && Z_LVAL_P(mode) != PHP_KAFKA_MODE_PRODUCER)
{
zend_throw_exception(
kafka_exception,
"invalid mode argument passed to Kafka::setPartition, use Kafka::MODE_* constants",
0 TSRMLS_CC
);
return;
}
}
p_value = Z_LVAL_P(partition);
if (p_value < -1)
{
zend_throw_exception(
kafka_exception,
"invalid partition passed to Kafka::setPartition, partition value should be >= 0 or Kafka::PARTION_RANDOM",
0 TSRMLS_CC
);
return;
}
p_value = p_value == -1 ? PHP_KAFKA_PARTITION_RANDOM : p_value;
if (!mode)
{
connection->consumer_partition = p_value;
connection->producer_partition = p_value;
kafka_set_partition(p_value);
}
else
{
if (Z_LVAL_P(mode) != PHP_KAFKA_MODE_CONSUMER)
connection->producer_partition = p_value;
else
connection->consumer_partition = p_value;
}
//return $this
RETURN_ZVAL(getThis(), 1, 0);
}
/* }}} end Kafka::set_partition */
/* {{{ proto Kafka Kafka::setLogLevel( mixed $logLevel )
toggle syslogging on or off use Kafka::LOG_* constants
*/
PHP_METHOD(Kafka, setLogLevel)
{
zval *log_level,
*obj = getThis();
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &log_level) == FAILURE)
{
return;//?
}
if (Z_TYPE_P(log_level) != IS_LONG) {
zend_throw_exception(kafka_exception, "Kafka::setLogLevel expects argument to be an int", 0 TSRMLS_CC);
return;
}
if (
Z_LVAL_P(log_level) != PHP_KAFKA_LOG_ON
&&
Z_LVAL_P(log_level) != PHP_KAFKA_LOG_OFF
) {
zend_throw_exception(kafka_exception, "Invalid argument, use Kafka::LOG_* constants", 0 TSRMLS_CC);
return;
}
connection->log_level = Z_LVAL_P(log_level);
kafka_set_log_level(connection->log_level);
RETURN_ZVAL(getThis(), 1, 0);
}
/* }}} end Kafka::setLogLevel */
/* {{{ proto Kafka Kafka::setCompression( string $compression )
* Enable compression for produced messages
*/
PHP_METHOD(Kafka, setCompression)
{
zval *obj = getThis();
char *arg;
int arg_len;
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &arg, &arg_len) == FAILURE)
{
return;
}
//if valid compression constant was used...
if (
!strcmp(arg, PHP_KAFKA_COMPRESSION_GZIP)
||
!strcmp(arg, PHP_KAFKA_COMPRESSION_NONE)
||
!strcmp(arg, PHP_KAFKA_COMPRESSION_SNAPPY)
)
{
if (connection->compression || strcmp(connection->compression, arg))
{
//close connections, if any, currently only use compression for producers
if (connection->producer)
kafka_destroy(connection->producer, 1);
connection->producer = NULL;
connection->producer_partition = PHP_KAFKA_PARTITION_RANDOM;
connection->compression = estrdup(arg);
}
}
else
{
zend_throw_exception(kafka_exception, "Invalid argument, use Kafka::COMPRESSION_* constants", 0 TSRMLS_CC);
}
RETURN_ZVAL(obj, 1, 0);
}
/* }}} end proto Kafka::setCompression */
/* {{{ proto string Kafka::getCompression( void )
* Get type of compression that is currently used
*/
PHP_METHOD(Kafka, getCompression)
{
zval *obj = getThis();
GET_KAFKA_CONNECTION(connection, obj);
if (!connection->compression)
RETURN_STRING(PHP_KAFKA_COMPRESSION_NONE, 1);
RETURN_STRING(connection->compression, 1);
}
/* }}} end proto Kafka::getCompression */
/* {{{ proto Kafka Kafka::setPartition( int $partition [, int $mode ] );
Set partition to use for Kafka::consume calls
*/
PHP_METHOD(Kafka, setPartition)
{
zval *partition,
*mode = NULL,
*obj = getThis();
long p_value;
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|z", &partition, &mode) == FAILURE)
return;
if (Z_TYPE_P(partition) != IS_LONG || (mode && Z_TYPE_P(mode) != IS_LONG)) {
zend_throw_exception(kafka_exception, "Partition and/or mode is expected to be an int", 0 TSRMLS_CC);
return;
}
if (mode)
{
if (Z_LVAL_P(mode) != PHP_KAFKA_MODE_CONSUMER && Z_LVAL_P(mode) != PHP_KAFKA_MODE_PRODUCER)
{
zend_throw_exception(
kafka_exception,
"invalid mode argument passed to Kafka::setPartition, use Kafka::MODE_* constants",
0 TSRMLS_CC
);
return;
}
}
p_value = Z_LVAL_P(partition);
if (p_value < -1)
{
zend_throw_exception(
kafka_exception,
"invalid partition passed to Kafka::setPartition, partition value should be >= 0 or Kafka::PARTION_RANDOM",
0 TSRMLS_CC
);
return;
}
p_value = p_value == -1 ? PHP_KAFKA_PARTITION_RANDOM : p_value;
if (!mode)
{
connection->consumer_partition = p_value;
connection->producer_partition = p_value;
kafka_set_partition(p_value);
}
else
{
if (Z_LVAL_P(mode) != PHP_KAFKA_MODE_CONSUMER)
connection->producer_partition = p_value;
else
connection->consumer_partition = p_value;
}
//return $this
RETURN_ZVAL(getThis(), 1, 0);
}
/* }}} end Kafka::setPartition */
/* {{{ proto int Kafka::getPartition( int $mode )
Get partition for connection (consumer/producer)
*/
PHP_METHOD(Kafka, getPartition)
{
zval *obj = getThis(),
*arg = NULL;
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &arg) == FAILURE)
return;
if (Z_TYPE_P(arg) != IS_LONG || (Z_LVAL_P(arg) != PHP_KAFKA_MODE_CONSUMER && Z_LVAL_P(arg) != PHP_KAFKA_MODE_PRODUCER))
{
zend_throw_exception(kafka_exception, "Invalid argument passed to Kafka::getPartition, use Kafka::MODE_* constants", 0 TSRMLS_CC);
return;
}
if (Z_LVAL_P(arg) == PHP_KAFKA_MODE_CONSUMER)
RETURN_LONG(connection->consumer_partition);
RETURN_LONG(connection->producer_partition);
}
/* }}} end proto Kafka::getPartition */
/* {{{ proto array Kafka::getTopics( void )
Get all existing topics
*/
PHP_METHOD(Kafka, getTopics)
{
zval *obj = getThis();
GET_KAFKA_CONNECTION(connection, obj);
if (connection->brokers == NULL && connection->consumer == NULL)
{
zend_throw_exception(kafka_exception, "No brokers to get topics from", 0 TSRMLS_CC);
return;
}
if (connection->consumer == NULL)
{
kafka_connection_params config;
config.type = RD_KAFKA_CONSUMER;
config.log_level = connection->log_level;
config.queue_buffer = connection->queue_buffer;
config.compression = NULL;
connection->consumer = kafka_get_connection(config, connection->brokers);
if (connection->consumer == NULL)
{
zend_throw_exception(kafka_exception, "Failed to connect to kafka", 0 TSRMLS_CC);
return;
}
connection->rk_type = RD_KAFKA_CONSUMER;
}
array_init(return_value);
kafka_get_topics(connection->consumer, return_value);
}
/* }}} end Kafka::getTopics */
/* {{{ proto Kafka Kafka::setBrokers ( string $brokers [, array $options = null ] )
Set brokers on-the-fly
*/
PHP_METHOD(Kafka, setBrokers)
{
zval *arr = NULL,
*obj = getThis();
char *brokers;
int brokers_len;
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|a",
&brokers, &brokers_len, &arr) == FAILURE) {
return;
}
//if array is passed, parse it, return if an exception was thrown...
if (arr && parse_options_array(arr, &connection))
return;
if (connection->consumer)
kafka_destroy(connection->consumer, 1);
if (connection->producer)
kafka_destroy(connection->producer, 1);
//free previous brokers value, if any
if (connection->brokers)
efree(connection->brokers);
if (connection->compression)
efree(connection->compression);
//set brokers
connection->brokers = estrdup(
brokers
);
//reinit to NULL
connection->producer = connection->consumer = NULL;
connection->compression = NULL;
//restore partitions back to random...
connection->consumer_partition = connection->producer_partition = PHP_KAFKA_PARTITION_RANDOM;
//set brokers member to correct value
//we can ditch this call, I think...
kafka_connect(
connection->brokers
);
//return
RETURN_ZVAL(obj, 1, 0);
}
/* }}} end Kafka::setBrokers */
/* proto Kafka Kafka::setOptions( array $options )
* Set connection options on the "fly"
*/
PHP_METHOD(Kafka, setOptions)
{
zval *arr = NULL,
*obj = getThis();
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a", &arr) == FAILURE)
{
return;
}
if (parse_options_array(arr, &connection))
return;
RETURN_ZVAL(obj, 1, 0);
}
/* end proto Kafka::setOptions */
/* {{{ proto array Kafka::getPartitionsForTopic( string $topic )
Get an array of available partitions for a given topic
*/
PHP_METHOD(Kafka, getPartitionsForTopic)
{
zval *obj = getThis();
char *topic = NULL;
int topic_len = 0;
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",
&topic, &topic_len) == FAILURE) {
return;
}
if (!connection->consumer)
{
kafka_connection_params config;
config.type = RD_KAFKA_CONSUMER;
config.log_level = connection->log_level;
config.queue_buffer = connection->queue_buffer;
config.compression = NULL;
connection->consumer = kafka_get_connection(config, connection->brokers);
if (connection->consumer == NULL)
{
zend_throw_exception(kafka_exception, "Failed to connect to kafka", 0 TSRMLS_CC);
return;
}
connection->rk_type = RD_KAFKA_CONSUMER;
}
array_init(return_value);
kafka_get_partitions(connection->consumer, return_value, topic);
}
/* }}} end Kafka::getPartitionsForTopic */
/* {{{ proto Kafka::getPartitionOffsets( string $topic )
* Get an array containing all partitions and their respective first offsets
*/
PHP_METHOD(Kafka, getPartitionOffsets)
{
char *topic = NULL;
int topic_len = 0,
kafka_r;
long *offsets = NULL,
i;
kafka_connection *connection = (kafka_connection *) zend_object_store_get_object(
getThis() TSRMLS_CC
);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",
&topic, &topic_len) == FAILURE) {
return;
}
if (!connection->consumer)
{
kafka_connection_params config;
config.type = RD_KAFKA_CONSUMER;
config.log_level = connection->log_level;
config.queue_buffer = connection->queue_buffer;
config.compression = NULL;
connection->consumer = kafka_get_connection(config, connection->brokers);
if (connection->consumer == NULL)
{
zend_throw_exception(kafka_exception, "Failed to connect to kafka", 0 TSRMLS_CC);
return;
}
connection->rk_type = RD_KAFKA_CONSUMER;
}
kafka_r = kafka_partition_offsets(
connection->consumer,
&offsets,
topic
);
if (kafka_r < 1) {
char *msg = NULL;
if (kafka_r)
msg = kafka_r == -2 ? "No kafka connection" : "Allocation error";
else
msg = "Failed to get metadata for topic";
zend_throw_exception(
kafka_exception,
msg,
0 TSRMLS_CC
);
return;
}
array_init(return_value);
for (i=0;i<kafka_r;++i) {
add_index_long(return_value,i, offsets[i]);
}
free(offsets);//kafka allocates this bit, free outside of zend
} /* }}} end Kafka::getPartitionOffsets */
/* {{{ proto bool Kafka::disconnect( [int $mode] );
if No $mode argument is passed, all connections will be closed
Disconnects kafka, returns false if disconnect failed
*/
PHP_METHOD(Kafka, disconnect)
{
zval *obj = getThis(),
*mode = NULL;
long type = -1;
GET_KAFKA_CONNECTION(connection, obj);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|z",
&mode) == FAILURE) {
return;
}
if (mode)
{//mode was given
if (Z_TYPE_P(mode) == IS_LONG)
type = Z_LVAL_P(mode);
if (type != PHP_KAFKA_MODE_CONSUMER && type != PHP_KAFKA_MODE_PRODUCER)
{
zend_throw_exception(
kafka_exception,
"invalid argument passed to Kafka::disconnect, use Kafka::MODE_* constants",
0 TSRMLS_CC
);
return;
}
if (type == PHP_KAFKA_MODE_CONSUMER)
{//disconnect consumer
if (connection->consumer)
kafka_destroy(connection->consumer, 1);
connection->consumer = NULL;
}
else
{