/*

+----------------------------------------------------------------------+

| PHP Version 5 |

+----------------------------------------------------------------------+

| Copyright (c) 1997-2009 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: Nicolas Favre-Felix <n.favre-felix@owlient.eu> |

| Maintainer: Michael Grunder <michael.grunder@gmail.com> |

+----------------------------------------------------------------------+

*/

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include "common.h"

#include "ext/standard/info.h"

#include "php_ini.h"

#include "php_redis.h"

#include "redis_array.h"

#include <zend_exceptions.h>

#include "library.h"

#include "redis_array.h"

#include "redis_array_impl.h"

/* Simple macro to detect failure in a RedisArray call */

#define RA_CALL_FAILED(rv, cmd) \

((Z_TYPE_P(rv) == IS_BOOL && Z_BVAL_P(rv) == 0) || \

(Z_TYPE_P(rv) == IS_ARRAY && zend_hash_num_elements(Z_ARRVAL_P(rv)) == 0) || \

(Z_TYPE_P(rv) == IS_LONG && Z_LVAL_P(rv) == 0 && !strcasecmp(cmd, "TYPE"))) \

extern zend_class_entry *redis_ce;

zend_class_entry *redis_array_ce;

ZEND_BEGIN_ARG_INFO_EX(__redis_array_call_args, 0, 0, 2)

ZEND_ARG_INFO(0, function_name)

ZEND_ARG_INFO(0, arguments)

ZEND_END_ARG_INFO()

zend_function_entry redis_array_functions[] = {

PHP_ME(RedisArray, __construct, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, __call, __redis_array_call_args, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, _hosts, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, _target, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, _instance, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, _function, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, _distributor, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, _rehash, NULL, ZEND_ACC_PUBLIC)

/* special implementation for a few functions */

PHP_ME(RedisArray, select, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, info, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, ping, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, flushdb, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, flushall, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, mget, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, mset, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, del, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, getOption, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, setOption, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, keys, NULL, ZEND_ACC_PUBLIC)

/* Multi/Exec */

PHP_ME(RedisArray, multi, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, exec, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, discard, NULL, ZEND_ACC_PUBLIC)

PHP_ME(RedisArray, unwatch, NULL, ZEND_ACC_PUBLIC)

/* Aliases */

PHP_MALIAS(RedisArray, delete, del, NULL, ZEND_ACC_PUBLIC)

PHP_MALIAS(RedisArray, getMultiple, mget, NULL, ZEND_ACC_PUBLIC)

{NULL, NULL, NULL}

};

static void redis_array_free(RedisArray *ra) {

int i;

/* Redis objects */

for(i=0;i<ra->count;i++) {

zval_dtor(ra->redis[i]);

efree(ra->redis[i]);

efree(ra->hosts[i]);

}

efree(ra->redis);

efree(ra->hosts);

/* delete hash function */

if(ra->z_fun) {

zval_dtor(ra->z_fun);

efree(ra->z_fun);

}

/* Distributor */

if(ra->z_dist) {

zval_dtor(ra->z_dist);

efree(ra->z_dist);

}

/* Delete pur commands */

zval_dtor(ra->z_pure_cmds);

efree(ra->z_pure_cmds);

/* Free structure itself */

efree(ra);

}

int le_redis_array;

void redis_destructor_redis_array(zend_rsrc_list_entry * rsrc TSRMLS_DC)

{

RedisArray *ra = (RedisArray*)rsrc->ptr;

/* Free previous ring if it's set */

if(ra->prev) redis_array_free(ra->prev);

/* Free parent array */

redis_array_free(ra);

}

/**

* redis_array_get

*/

PHP_REDIS_API int redis_array_get(zval *id, RedisArray **ra TSRMLS_DC)

{

zval **socket;

int resource_type;

if (Z_TYPE_P(id) != IS_OBJECT || zend_hash_find(Z_OBJPROP_P(id), "socket",

sizeof("socket"), (void **) &socket) == FAILURE) {

return -1;

}

*ra = (RedisArray *) zend_list_find(Z_LVAL_PP(socket), &resource_type);

if (!*ra || resource_type != le_redis_array) {

return -1;

}

return Z_LVAL_PP(socket);

}

uint32_t rcrc32(const char *s, size_t sz) {

static const uint32_t table[256] = {

0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535,

0x9E6495A3,0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD,

0xE7B82D07,0x90BF1D91,0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D,

0x6DDDE4EB,0xF4D4B551,0x83D385C7,0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC,

0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,0x3B6E20C8,0x4C69105E,0xD56041E4,

0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,0x35B5A8FA,0x42B2986C,

0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,0x26D930AC,

0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F,

0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB,

0xB6662D3D,0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F,

0x9FBFE4A5,0xE8B8D433,0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB,

0x086D3D2D,0x91646C97,0xE6635C01,0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E,

0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,0x65B0D9C6,0x12B7E950,0x8BBEB8EA,

0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,0x4DB26158,0x3AB551CE,

0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,0x4369E96A,

0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9,

0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409,

0xCE61E49F,0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81,

0xB7BD5C3B,0xC0BA6CAD,0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739,

0x9DD277AF,0x04DB2615,0x73DC1683,0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8,

0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,0xF00F9344,0x8708A3D2,0x1E01F268,

0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,0xFED41B76,0x89D32BE0,

0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,0xD6D6A3E8,

0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B,

0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF,

0x4669BE79,0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703,

0x220216B9,0x5505262F,0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7,

0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A,

0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,0x95BF4A82,0xE2B87A14,0x7BB12BAE,

0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,0x86D3D2D4,0xF1D4E242,

0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,0x88085AE6,

0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45,

0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D,

0x3E6E77DB,0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5,

0x47B2CF7F,0x30B5FFE9,0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605,

0xCDD70693,0x54DE5729,0x23D967BF,0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94,

0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D};

unsigned long ret = 0xffffffff;

size_t i;

for (i = 0; i < sz; i++) {

ret = (ret >> 8) ^ table[ (ret ^ ((unsigned char)s[i])) & 0xFF ];

}

return (ret ^ 0xFFFFFFFF);

}

/* {{{ proto RedisArray RedisArray::__construct()

Public constructor */

PHP_METHOD(RedisArray, __construct)

{

zval *z0, *z_fun = NULL, *z_dist = NULL, **zpData, *z_opts = NULL;

int id;

RedisArray *ra = NULL;

zend_bool b_index = 0, b_autorehash = 0, b_pconnect = 0;

HashTable *hPrev = NULL, *hOpts = NULL;

long l_retry_interval = 0;

zend_bool b_lazy_connect = 0;

double d_connect_timeout = 0;

if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|a", &z0, &z_opts) == FAILURE) {

RETURN_FALSE;

}

/* extract options */

if(z_opts) {

zval **z_retry_interval_pp;

zval **z_connect_timeout_pp;

hOpts = Z_ARRVAL_P(z_opts);

/* extract previous ring. */

if(FAILURE != zend_hash_find(hOpts, "previous", sizeof("previous"), (void**)&zpData) && Z_TYPE_PP(zpData) == IS_ARRAY

&& zend_hash_num_elements(Z_ARRVAL_PP(zpData)) != 0) {

/* consider previous array as non-existent if empty. */

hPrev = Z_ARRVAL_PP(zpData);

}

/* extract function name. */

if(FAILURE != zend_hash_find(hOpts, "function", sizeof("function"), (void**)&zpData)) {

MAKE_STD_ZVAL(z_fun);

*z_fun = **zpData;

zval_copy_ctor(z_fun);

}

/* extract function name. */

if(FAILURE != zend_hash_find(hOpts, "distributor", sizeof("distributor"), (void**)&zpData)) {

MAKE_STD_ZVAL(z_dist);

*z_dist = **zpData;

zval_copy_ctor(z_dist);

}

/* extract index option. */

if(FAILURE != zend_hash_find(hOpts, "index", sizeof("index"), (void**)&zpData) && Z_TYPE_PP(zpData) == IS_BOOL) {

b_index = Z_BVAL_PP(zpData);

}

/* extract autorehash option. */

if(FAILURE != zend_hash_find(hOpts, "autorehash", sizeof("autorehash"), (void**)&zpData) && Z_TYPE_PP(zpData) == IS_BOOL) {

b_autorehash = Z_BVAL_PP(zpData);

}

/* pconnect */

if(FAILURE != zend_hash_find(hOpts, "pconnect", sizeof("pconnect"), (void**)&zpData) && Z_TYPE_PP(zpData) == IS_BOOL) {

b_pconnect = Z_BVAL_PP(zpData);

}

/* extract retry_interval option. */

if (FAILURE != zend_hash_find(hOpts, "retry_interval", sizeof("retry_interval"), (void**)&z_retry_interval_pp)) {

if (Z_TYPE_PP(z_retry_interval_pp) == IS_LONG || Z_TYPE_PP(z_retry_interval_pp) == IS_STRING) {

if (Z_TYPE_PP(z_retry_interval_pp) == IS_LONG) {

l_retry_interval = Z_LVAL_PP(z_retry_interval_pp);

}

else {

l_retry_interval = atol(Z_STRVAL_PP(z_retry_interval_pp));

}

}

}

/* extract lazy connect option. */

if(FAILURE != zend_hash_find(hOpts, "lazy_connect", sizeof("lazy_connect"), (void**)&zpData) && Z_TYPE_PP(zpData) == IS_BOOL) {

b_lazy_connect = Z_BVAL_PP(zpData);

}

/* extract connect_timeout option */

if (FAILURE != zend_hash_find(hOpts, "connect_timeout", sizeof("connect_timeout"), (void**)&z_connect_timeout_pp)) {

if (Z_TYPE_PP(z_connect_timeout_pp) == IS_DOUBLE || Z_TYPE_PP(z_connect_timeout_pp) == IS_STRING) {

if (Z_TYPE_PP(z_connect_timeout_pp) == IS_DOUBLE) {

d_connect_timeout = Z_DVAL_PP(z_connect_timeout_pp);

}

else {

d_connect_timeout = atof(Z_STRVAL_PP(z_connect_timeout_pp));

}

}

}

}

/* extract either name of list of hosts from z0 */

switch(Z_TYPE_P(z0)) {

case IS_STRING:

ra = ra_load_array(Z_STRVAL_P(z0) TSRMLS_CC);

break;

case IS_ARRAY:

ra = ra_make_array(Z_ARRVAL_P(z0), z_fun, z_dist, hPrev, b_index, b_pconnect, l_retry_interval, b_lazy_connect, d_connect_timeout TSRMLS_CC);

break;

default:

WRONG_PARAM_COUNT;

break;

}

if(ra) {

ra->auto_rehash = b_autorehash;

ra->connect_timeout = d_connect_timeout;

if(ra->prev) ra->prev->auto_rehash = b_autorehash;

#if PHP_VERSION_ID >= 50400

id = zend_list_insert(ra, le_redis_array TSRMLS_CC);

#else

id = zend_list_insert(ra, le_redis_array);

#endif

add_property_resource(getThis(), "socket", id);

}

}

static void

ra_forward_call(INTERNAL_FUNCTION_PARAMETERS, RedisArray *ra, const char *cmd, int cmd_len, zval *z_args, zval *z_new_target) {

zval **zp_tmp, z_tmp;

char *key = NULL; /* set to avoid "unused-but-set-variable" */

int key_len;

int i;

zval *redis_inst;

zval z_fun, **z_callargs;

HashPosition pointer;

HashTable *h_args;

int argc;

zend_bool b_write_cmd = 0;

h_args = Z_ARRVAL_P(z_args);

argc = zend_hash_num_elements(h_args);

if(ra->z_multi_exec) {

redis_inst = ra->z_multi_exec; /* we already have the instance */

} else {

/* extract key and hash it. */

if(!(key = ra_find_key(ra, z_args, cmd, &key_len))) {

php_error_docref(NULL TSRMLS_CC, E_ERROR, "Could not find key");

RETURN_FALSE;

}

/* find node */

redis_inst = ra_find_node(ra, key, key_len, NULL TSRMLS_CC);

if(!redis_inst) {

php_error_docref(NULL TSRMLS_CC, E_ERROR, "Could not find any redis servers for this key.");

RETURN_FALSE;

}

}

/* check if write cmd */

b_write_cmd = ra_is_write_cmd(ra, cmd, cmd_len);

if(ra->index && b_write_cmd && !ra->z_multi_exec) { /* add MULTI + SADD */

ra_index_multi(redis_inst, MULTI TSRMLS_CC);

}

/* pass call through */

ZVAL_STRING(&z_fun, cmd, 0); /* method name */

z_callargs = emalloc(argc * sizeof(zval*));

/* copy args to array */

for (i = 0, zend_hash_internal_pointer_reset_ex(h_args, &pointer);

zend_hash_get_current_data_ex(h_args, (void**) &zp_tmp,

&pointer) == SUCCESS;

++i, zend_hash_move_forward_ex(h_args, &pointer)) {

z_callargs[i] = *zp_tmp;

}

/* multi/exec */

if(ra->z_multi_exec) {

call_user_function(&redis_ce->function_table, &ra->z_multi_exec, &z_fun, return_value, argc, z_callargs TSRMLS_CC);

efree(z_callargs);

RETURN_ZVAL(getThis(), 1, 0);

}

/* CALL! */

if(ra->index && b_write_cmd) {

/* call using discarded temp value and extract exec results after. */

call_user_function(&redis_ce->function_table, &redis_inst, &z_fun, &z_tmp, argc, z_callargs TSRMLS_CC);

zval_dtor(&z_tmp);

/* add keys to index. */

ra_index_key(key, key_len, redis_inst TSRMLS_CC);

/* call EXEC */

ra_index_exec(redis_inst, return_value, 0 TSRMLS_CC);

} else { /* call directly through. */

call_user_function(&redis_ce->function_table, &redis_inst, &z_fun, return_value, argc, z_callargs TSRMLS_CC);

/* check if we have an error. */

if(RA_CALL_FAILED(return_value,cmd) && ra->prev && !b_write_cmd) { /* there was an error reading, try with prev ring. */

/* ERROR, FALLBACK TO PREVIOUS RING and forward a reference to the first redis instance we were looking at. */

ra_forward_call(INTERNAL_FUNCTION_PARAM_PASSTHRU, ra->prev, cmd, cmd_len, z_args, z_new_target?z_new_target:redis_inst);

}

/* Autorehash if the key was found on the previous node if this is a read command and auto rehashing is on */

if(!RA_CALL_FAILED(return_value,cmd) && !b_write_cmd && z_new_target && ra->auto_rehash) { /* move key from old ring to new ring */

ra_move_key(key, key_len, redis_inst, z_new_target TSRMLS_CC);

}

}

/* cleanup */

efree(z_callargs);

}

PHP_METHOD(RedisArray, __call)

{

zval *object;

RedisArray *ra;

zval *z_args;

char *cmd;

int cmd_len;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Osa",

&object, redis_array_ce, &cmd, &cmd_len, &z_args) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

ra_forward_call(INTERNAL_FUNCTION_PARAM_PASSTHRU, ra, cmd, cmd_len, z_args, NULL);

}

PHP_METHOD(RedisArray, _hosts)

{

zval *object;

int i;

RedisArray *ra;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",

&object, redis_array_ce) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

array_init(return_value);

for(i = 0; i < ra->count; ++i) {

add_next_index_string(return_value, ra->hosts[i], 1);

}

}

PHP_METHOD(RedisArray, _target)

{

zval *object;

RedisArray *ra;

char *key;

int key_len, i;

zval *redis_inst;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os",

&object, redis_array_ce, &key, &key_len) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

redis_inst = ra_find_node(ra, key, key_len, &i TSRMLS_CC);

if(redis_inst) {

ZVAL_STRING(return_value, ra->hosts[i], 1);

} else {

RETURN_NULL();

}

}

PHP_METHOD(RedisArray, _instance)

{

zval *object;

RedisArray *ra;

char *target;

int target_len;

zval *z_redis;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os",

&object, redis_array_ce, &target, &target_len) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

z_redis = ra_find_node_by_name(ra, target, target_len TSRMLS_CC);

if(z_redis) {

RETURN_ZVAL(z_redis, 1, 0);

} else {

RETURN_NULL();

}

}

PHP_METHOD(RedisArray, _function)

{

zval *object;

RedisArray *ra;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",

&object, redis_array_ce) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

if(ra->z_fun) {

*return_value = *ra->z_fun;

zval_copy_ctor(return_value);

} else {

RETURN_NULL();

}

}

PHP_METHOD(RedisArray, _distributor)

{

zval *object;

RedisArray *ra;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",

&object, redis_array_ce) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

if(ra->z_fun) {

*return_value = *ra->z_fun;

zval_copy_ctor(return_value);

} else {

RETURN_NULL();

}

}

PHP_METHOD(RedisArray, _rehash)

{

zval *object;

RedisArray *ra;

zend_fcall_info z_cb;

zend_fcall_info_cache z_cb_cache;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O|f",

&object, redis_array_ce, &z_cb, &z_cb_cache) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

if (ZEND_NUM_ARGS() == 0) {

ra_rehash(ra, NULL, NULL TSRMLS_CC);

} else {

ra_rehash(ra, &z_cb, &z_cb_cache TSRMLS_CC);

}

}

static void multihost_distribute(INTERNAL_FUNCTION_PARAMETERS, const char *method_name)

{

zval *object, z_fun, *z_tmp;

int i;

RedisArray *ra;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",

&object, redis_array_ce) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

/* prepare call */

ZVAL_STRING(&z_fun, method_name, 0);

array_init(return_value);

for(i = 0; i < ra->count; ++i) {

MAKE_STD_ZVAL(z_tmp);

/* Call each node in turn */

call_user_function(&redis_ce->function_table, &ra->redis[i],

&z_fun, z_tmp, 0, NULL TSRMLS_CC);

add_assoc_zval(return_value, ra->hosts[i], z_tmp);

}

}

PHP_METHOD(RedisArray, info)

{

multihost_distribute(INTERNAL_FUNCTION_PARAM_PASSTHRU, "INFO");

}

PHP_METHOD(RedisArray, ping)

{

multihost_distribute(INTERNAL_FUNCTION_PARAM_PASSTHRU, "PING");

}

PHP_METHOD(RedisArray, flushdb)

{

multihost_distribute(INTERNAL_FUNCTION_PARAM_PASSTHRU, "FLUSHDB");

}

PHP_METHOD(RedisArray, flushall)

{

multihost_distribute(INTERNAL_FUNCTION_PARAM_PASSTHRU, "FLUSHALL");

}

PHP_METHOD(RedisArray, keys)

{

zval *object, *z_args[1], *z_tmp, z_fun;

RedisArray *ra;

char *pattern;

int pattern_len, i;

/* Make sure the prototype is correct */

if(zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os",

&object, redis_array_ce, &pattern, &pattern_len) == FAILURE)

{

RETURN_FALSE;

}

/* Make sure we can grab our RedisArray object */

if(redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

/* Set up our function call (KEYS) */

ZVAL_STRING(&z_fun, "KEYS", 0);

/* We will be passing with one string argument (the pattern) */

MAKE_STD_ZVAL(z_args[0]);

ZVAL_STRINGL(z_args[0], pattern, pattern_len, 0);

/* Init our array return */

array_init(return_value);

/* Iterate our RedisArray nodes */

for(i=0; i<ra->count; ++i) {

/* Return for this node */

MAKE_STD_ZVAL(z_tmp);

/* Call KEYS on each node */

call_user_function(&redis_ce->function_table, &ra->redis[i], &z_fun, z_tmp, 1, z_args TSRMLS_CC);

/* Add the result for this host */

add_assoc_zval(return_value, ra->hosts[i], z_tmp);

}

/* Free arg array */

efree(z_args[0]);

}

PHP_METHOD(RedisArray, getOption)

{

zval *object, z_fun, *z_tmp, *z_args[1];

int i;

RedisArray *ra;

long opt;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Ol",

&object, redis_array_ce, &opt) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

/* prepare call */

ZVAL_STRING(&z_fun, "getOption", 0);

/* copy arg */

MAKE_STD_ZVAL(z_args[0]);

ZVAL_LONG(z_args[0], opt);

array_init(return_value);

for(i = 0; i < ra->count; ++i) {

MAKE_STD_ZVAL(z_tmp);

/* Call each node in turn */

call_user_function(&redis_ce->function_table, &ra->redis[i],

&z_fun, z_tmp, 1, z_args TSRMLS_CC);

add_assoc_zval(return_value, ra->hosts[i], z_tmp);

}

/* cleanup */

efree(z_args[0]);

}

PHP_METHOD(RedisArray, setOption)

{

zval *object, z_fun, *z_tmp, *z_args[2];

int i;

RedisArray *ra;

long opt;

char *val_str;

int val_len;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Ols",

&object, redis_array_ce, &opt, &val_str, &val_len) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

/* prepare call */

ZVAL_STRING(&z_fun, "setOption", 0);

/* copy args */

MAKE_STD_ZVAL(z_args[0]);

ZVAL_LONG(z_args[0], opt);

MAKE_STD_ZVAL(z_args[1]);

ZVAL_STRINGL(z_args[1], val_str, val_len, 0);

array_init(return_value);

for(i = 0; i < ra->count; ++i) {

MAKE_STD_ZVAL(z_tmp);

/* Call each node in turn */

call_user_function(&redis_ce->function_table, &ra->redis[i],

&z_fun, z_tmp, 2, z_args TSRMLS_CC);

add_assoc_zval(return_value, ra->hosts[i], z_tmp);

}

/* cleanup */

efree(z_args[0]);

efree(z_args[1]);

}

PHP_METHOD(RedisArray, select)

{

zval *object, z_fun, *z_tmp, *z_args[2];

int i;

RedisArray *ra;

long opt;

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Ol",

&object, redis_array_ce, &opt) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

/* prepare call */

ZVAL_STRING(&z_fun, "select", 0);

/* copy args */

MAKE_STD_ZVAL(z_args[0]);

ZVAL_LONG(z_args[0], opt);

array_init(return_value);

for(i = 0; i < ra->count; ++i) {

MAKE_STD_ZVAL(z_tmp);

/* Call each node in turn */

call_user_function(&redis_ce->function_table, &ra->redis[i],

&z_fun, z_tmp, 1, z_args TSRMLS_CC);

add_assoc_zval(return_value, ra->hosts[i], z_tmp);

}

/* cleanup */

efree(z_args[0]);

}

#define HANDLE_MULTI_EXEC(cmd) do {\

if (redis_array_get(getThis(), &ra TSRMLS_CC) >= 0 && ra->z_multi_exec) {\

int i, num_varargs;\

zval ***varargs = NULL;\

zval z_arg_array;\

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O*",\

&object, redis_array_ce, &varargs, &num_varargs) == FAILURE) {\

RETURN_FALSE;\

}\

/* copy all args into a zval hash table */\

array_init(&z_arg_array);\

for(i = 0; i < num_varargs; ++i) {\

zval *z_tmp;\

MAKE_STD_ZVAL(z_tmp);\

*z_tmp = **varargs[i];\

zval_copy_ctor(z_tmp);\

INIT_PZVAL(z_tmp);\

add_next_index_zval(&z_arg_array, z_tmp);\

}\

/* call */\

ra_forward_call(INTERNAL_FUNCTION_PARAM_PASSTHRU, ra, cmd, sizeof(cmd)-1, &z_arg_array, NULL);\

zval_dtor(&z_arg_array);\

if(varargs) {\

efree(varargs);\

}\

return;\

}\

}while(0)

/* MGET will distribute the call to several nodes and regroup the values. */

PHP_METHOD(RedisArray, mget)

{

zval *object, *z_keys, z_fun, *z_argarray, **data, *z_ret, **z_cur, *z_tmp_array, *z_tmp;

int i, j, n;

RedisArray *ra;

int *pos, argc, *argc_each;

HashTable *h_keys;

HashPosition pointer;

zval **redis_instances, **argv;

/* Multi/exec support */

HANDLE_MULTI_EXEC("MGET");

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oa",

&object, redis_array_ce, &z_keys) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}

/* prepare call */

ZVAL_STRING(&z_fun, "MGET", 0);

/* init data structures */

h_keys = Z_ARRVAL_P(z_keys);

argc = zend_hash_num_elements(h_keys);

argv = emalloc(argc * sizeof(zval*));

pos = emalloc(argc * sizeof(int));

redis_instances = emalloc(argc * sizeof(zval*));

memset(redis_instances, 0, argc * sizeof(zval*));

argc_each = emalloc(ra->count * sizeof(int));

memset(argc_each, 0, ra->count * sizeof(int));

/* associate each key to a redis node */

for (i = 0, zend_hash_internal_pointer_reset_ex(h_keys, &pointer);

zend_hash_get_current_data_ex(h_keys, (void**) &data,

&pointer) == SUCCESS;

zend_hash_move_forward_ex(h_keys, &pointer), ++i)

{

/* If we need to represent a long key as a string */

unsigned int key_len;

char kbuf[40], *key_lookup;

/* phpredis proper can only use string or long keys, so restrict to that here */

if(Z_TYPE_PP(data) != IS_STRING && Z_TYPE_PP(data) != IS_LONG) {

php_error_docref(NULL TSRMLS_CC, E_ERROR, "MGET: all keys must be strings or longs");

efree(argv);

efree(pos);

efree(redis_instances);

efree(argc_each);

RETURN_FALSE;

}

/* Convert to a string for hash lookup if it isn't one */

if(Z_TYPE_PP(data) == IS_STRING) {

key_len = Z_STRLEN_PP(data);

key_lookup = Z_STRVAL_PP(data);

} else {

key_len = snprintf(kbuf, sizeof(kbuf), "%ld", Z_LVAL_PP(data));

key_lookup = (char*)kbuf;

}

/* Find our node */

redis_instances[i] = ra_find_node(ra, key_lookup, key_len, &pos[i] TSRMLS_CC);

argc_each[pos[i]]++; /* count number of keys per node */

argv[i] = *data;

}

/* prepare return value */

array_init(return_value);

MAKE_STD_ZVAL(z_tmp_array);

array_init(z_tmp_array);

/* calls */

for(n = 0; n < ra->count; ++n) { /* for each node */

/* We don't even need to make a call to this node if no keys go there */

if(!argc_each[n]) continue;

/* copy args for MGET call on node. */

MAKE_STD_ZVAL(z_argarray);

array_init(z_argarray);

for(i = 0; i < argc; ++i) {

if(pos[i] != n) continue;

MAKE_STD_ZVAL(z_tmp);

*z_tmp = *argv[i];

zval_copy_ctor(z_tmp);

INIT_PZVAL(z_tmp);

add_next_index_zval(z_argarray, z_tmp);

}

/* call MGET on the node */

MAKE_STD_ZVAL(z_ret);

call_user_function(&redis_ce->function_table, &ra->redis[n],

&z_fun, z_ret, 1, &z_argarray TSRMLS_CC);

/* cleanup args array */

zval_ptr_dtor(&z_argarray);

for(i = 0, j = 0; i < argc; ++i) {

/* Error out if we didn't get a proper response */

if(Z_TYPE_P(z_ret) != IS_ARRAY) {

/* cleanup */

zval_dtor(z_ret);

efree(z_ret);

zval_ptr_dtor(&z_tmp_array);

efree(pos);

efree(redis_instances);

efree(argc_each);

/* failure */

RETURN_FALSE;

}

if(pos[i] != n) continue;

zend_hash_quick_find(Z_ARRVAL_P(z_ret), NULL, 0, j, (void**)&z_cur);

j++;

MAKE_STD_ZVAL(z_tmp);

*z_tmp = **z_cur;

zval_copy_ctor(z_tmp);

INIT_PZVAL(z_tmp);

add_index_zval(z_tmp_array, i, z_tmp);

}

zval_dtor(z_ret);

efree(z_ret);

}

/* copy temp array in the right order to return_value */

for(i = 0; i < argc; ++i) {

zend_hash_quick_find(Z_ARRVAL_P(z_tmp_array), NULL, 0, i, (void**)&z_cur);

MAKE_STD_ZVAL(z_tmp);

*z_tmp = **z_cur;

zval_copy_ctor(z_tmp);

INIT_PZVAL(z_tmp);

add_next_index_zval(return_value, z_tmp);

}

/* cleanup */

zval_ptr_dtor(&z_tmp_array);

efree(argv);

efree(pos);

efree(redis_instances);

efree(argc_each);

}

/* MSET will distribute the call to several nodes and regroup the values. */

PHP_METHOD(RedisArray, mset)

{

zval *object, *z_keys, z_fun, *z_argarray, **data, z_ret;

int i, n;

RedisArray *ra;

int *pos, argc, *argc_each;

HashTable *h_keys;

zval **redis_instances, *redis_inst, **argv;

char *key, **keys, **key_free, kbuf[40];

unsigned int key_len, free_idx = 0;

int type, *key_lens;

unsigned long idx;

/* Multi/exec support */

HANDLE_MULTI_EXEC("MSET");

if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oa",

&object, redis_array_ce, &z_keys) == FAILURE) {

RETURN_FALSE;

}

if (redis_array_get(object, &ra TSRMLS_CC) < 0) {

RETURN_FALSE;

}