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php_memcached.c
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php_memcached.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) 2009 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 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_0.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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andrei Zmievski <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $ Id: $ */
/* TODO
* - set LIBKETAMA_COMPATIBLE as the default?
* - consider setOptions()
* - fix unserialize(serialize($memc))
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <php.h>
#ifdef ZTS
#include "TSRM.h"
#endif
#include <php_ini.h>
#include <SAPI.h>
#include <ext/standard/info.h>
#include <zend_extensions.h>
#include <zend_exceptions.h>
#include <ext/standard/php_smart_str.h>
#include <ext/standard/php_var.h>
#include <libmemcached/memcached.h>
#include <zlib.h>
#include <stdbool.h>
#include "php_memcached.h"
#ifdef HAVE_MEMCACHED_IGBINARY
#include "ext/igbinary/igbinary.h"
#endif
#ifdef HAVE_JSON_API
#include "ext/json/php_json.h"
#endif
/****************************************
Custom options
****************************************/
#define MEMC_OPT_COMPRESSION -1001
#define MEMC_OPT_PREFIX_KEY -1002
#define MEMC_OPT_SERIALIZER -1003
/****************************************
Custom result codes
****************************************/
#define MEMC_RES_PAYLOAD_FAILURE -1001
/****************************************
Payload value flags
****************************************/
#define MEMC_VAL_TYPE_MASK 0xf
#define MEMC_VAL_GET_TYPE(flags) ((flags) & MEMC_VAL_TYPE_MASK)
#define MEMC_VAL_SET_TYPE(flags, type) ((flags) |= ((type) & MEMC_VAL_TYPE_MASK))
#define MEMC_VAL_IS_STRING 0
#define MEMC_VAL_IS_LONG 1
#define MEMC_VAL_IS_DOUBLE 2
#define MEMC_VAL_IS_BOOL 3
#define MEMC_VAL_IS_SERIALIZED 4
#define MEMC_VAL_IS_IGBINARY 5
#define MEMC_VAL_IS_JSON 6
#define MEMC_VAL_COMPRESSED (1<<4)
/****************************************
"get" operation flags
****************************************/
#define MEMC_GET_PRESERVE_ORDER (1<<0)
#define MEMC_COMPRESS_THRESHOLD 100
/****************************************
Helper macros
****************************************/
#define MEMC_METHOD_INIT_VARS \
zval* object = getThis(); \
php_memc_t* i_obj = NULL; \
#define MEMC_METHOD_FETCH_OBJECT \
i_obj = (php_memc_t *) zend_object_store_get_object( object TSRMLS_CC ); \
if (!i_obj->memc) { \
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Memcached constructor was not called"); \
return; \
} \
#ifndef DVAL_TO_LVAL
#ifdef _WIN64
# define DVAL_TO_LVAL(d, l) \
if ((d) > LONG_MAX) { \
(l) = (long)(unsigned long)(__int64) (d); \
} else { \
(l) = (long) (d); \
}
#else
# define DVAL_TO_LVAL(d, l) \
if ((d) > LONG_MAX) { \
(l) = (unsigned long) (d); \
} else { \
(l) = (long) (d); \
}
#endif
#endif
#ifdef HAVE_MEMCACHED_GET_NULL
// retur null on error
#define RETURN_FROM_GET RETURN_NULL()
#else
// return false on error
#define RETURN_FROM_GET RETURN_FALSE
#endif
/****************************************
Structures and definitions
****************************************/
enum memcached_serializer {
SERIALIZER_PHP = 1,
SERIALIZER_IGBINARY = 2,
SERIALIZER_JSON = 3,
};
static int le_memc;
typedef struct {
zend_object zo;
memcached_st *memc;
bool is_persistent;
bool is_pristine;
const char *plist_key;
int plist_key_len;
bool compression;
enum memcached_serializer serializer;
} php_memc_t;
enum {
MEMC_OP_SET,
MEMC_OP_ADD,
MEMC_OP_REPLACE,
MEMC_OP_APPEND,
MEMC_OP_PREPEND
};
static int le_memc;
static zend_class_entry *memcached_ce = NULL;
static zend_class_entry *memcached_exception_ce = NULL;
static zend_class_entry *spl_ce_RuntimeException = NULL;
#if (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION < 3)
const zend_fcall_info empty_fcall_info = { 0, NULL, NULL, NULL, NULL, 0, NULL, NULL, 0 };
#undef ZEND_BEGIN_ARG_INFO_EX
#define ZEND_BEGIN_ARG_INFO_EX(name, pass_rest_by_reference, return_reference, required_num_args) \
static zend_arg_info name[] = { \
{ NULL, 0, NULL, 0, 0, 0, pass_rest_by_reference, return_reference, required_num_args },
#endif
ZEND_DECLARE_MODULE_GLOBALS(php_memcached)
#ifdef COMPILE_DL_MEMCACHED
ZEND_GET_MODULE(memcached)
#endif
/****************************************
Forward declarations
****************************************/
static int php_memc_list_entry(void);
static int php_memc_handle_error(memcached_return status TSRMLS_DC);
static char *php_memc_zval_to_payload(zval *value, size_t *payload_len, uint32_t *flags, enum memcached_serializer serializer TSRMLS_DC);
static int php_memc_zval_from_payload(zval *value, char *payload, size_t payload_len, uint32_t flags TSRMLS_DC);
static void php_memc_get_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key);
static void php_memc_getMulti_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key);
static void php_memc_store_impl(INTERNAL_FUNCTION_PARAMETERS, int op, zend_bool by_key);
static void php_memc_setMulti_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key);
static void php_memc_cas_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key);
static void php_memc_delete_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key);
static void php_memc_incdec_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool incr);
static void php_memc_getDelayed_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key);
static memcached_return php_memc_do_cache_callback(zval *memc_obj, zend_fcall_info *fci, zend_fcall_info_cache *fcc, char *key, size_t key_len, zval *value TSRMLS_DC);
static int php_memc_do_result_callback(zval *memc_obj, zend_fcall_info *fci, zend_fcall_info_cache *fcc, memcached_result_st *result TSRMLS_DC);
/****************************************
Method implementations
****************************************/
/* {{{ Memcached::__construct([string persisten_id]))
Creates a Memcached object, optionally using persistent memcache connection */
static PHP_METHOD(Memcached, __construct)
{
zval *object = getThis();
php_memc_t *i_obj;
memcached_st *memc = NULL;
char *persistent_id = NULL;
int persistent_id_len;
zend_bool skip_ctor = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &persistent_id,
&persistent_id_len) == FAILURE) {
ZVAL_NULL(object);
return;
}
i_obj = (php_memc_t *) zend_object_store_get_object(object TSRMLS_CC);
i_obj->is_pristine = true;
if (persistent_id) {
char *plist_key = NULL;
int plist_key_len = 0;
zend_rsrc_list_entry *le;
php_memc_t *pi_obj = NULL;
plist_key_len = spprintf(&plist_key, 0, "memcached:id=%s", persistent_id);
if (zend_hash_find(&EG(persistent_list), plist_key, plist_key_len+1, (void *)&le) == SUCCESS) {
if (le->type == php_memc_list_entry()) {
pi_obj = (php_memc_t *) le->ptr;
}
}
/*
* If persistent memcache object is found under the given ID, skip constructor.
* Otherwise, create a new persistent object.
*/
if (pi_obj) {
skip_ctor = 1;
pi_obj->is_pristine = false;
} else {
pi_obj = pecalloc(1, sizeof(*pi_obj), 1);
if (pi_obj == NULL) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "out of memory: cannot allocate handle");
/* not reached */
}
pi_obj->is_persistent = true;
pi_obj->is_pristine = true;
if ((pi_obj->plist_key = pemalloc(plist_key_len + 1, 1)) == NULL) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "out of memory: cannot allocate handle");
/* not reached */
}
memcpy((char *)pi_obj->plist_key, plist_key, plist_key_len + 1);
pi_obj->plist_key_len = plist_key_len + 1;
/*
* Copy state bits because we've just constructed a new persistent object.
*/
pi_obj->compression = i_obj->compression;
}
/*
* Copy emalloc'ed bits.
*/
pi_obj->zo = i_obj->zo;
/*
* Replace non-persistent object with the persistent one.
*/
efree(i_obj);
i_obj = pi_obj;
zend_object_store_set_object(object, i_obj TSRMLS_CC);
if (plist_key) {
efree(plist_key);
}
}
if (skip_ctor) {
return;
}
memc = memcached_create(NULL);
if (memc == NULL) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "could not allocate libmemcached structure");
/* not reached */
}
i_obj->memc = memc;
if (persistent_id) {
zend_rsrc_list_entry le;
le.type = php_memc_list_entry();
le.ptr = i_obj;
if (zend_hash_update(&EG(persistent_list), (char *)i_obj->plist_key,
i_obj->plist_key_len, (void *)&le, sizeof(le), NULL) == FAILURE) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "could not register persistent entry");
/* not reached */
}
}
i_obj->serializer = MEMC_G(serializer);
}
/* }}} */
/* {{{ Memcached::get(string key [, mixed callback [, double &cas_token ] ])
Returns a value for the given key or false */
PHP_METHOD(Memcached, get)
{
php_memc_get_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ Memcached::getByKey(string server_key, string key [, mixed callback [, double &cas_token ] ])
Returns a value for key from the server identified by the server key or false */
PHP_METHOD(Memcached, getByKey)
{
php_memc_get_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ -- php_memc_get_impl */
static void php_memc_get_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key)
{
char *key = NULL;
size_t key_len = 0;
char *server_key = NULL;
int server_key_len = 0;
char *payload = NULL;
size_t payload_len = 0;
uint32_t flags = 0;
uint64_t cas = 0;
zval *cas_token = NULL;
zend_fcall_info fci = empty_fcall_info;
zend_fcall_info_cache fcc = empty_fcall_info_cache;
memcached_result_st result;
memcached_return status = MEMCACHED_SUCCESS;
MEMC_METHOD_INIT_VARS;
if (by_key) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|f!z", &server_key,
&server_key_len, &key, &key_len, &fci, &fcc, &cas_token) == FAILURE) {
return;
}
} else {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|f!z", &key, &key_len,
&fci, &fcc, &cas_token) == FAILURE) {
return;
}
}
MEMC_METHOD_FETCH_OBJECT;
MEMC_G(rescode) = MEMCACHED_SUCCESS;
if (key_len == 0) {
MEMC_G(rescode) = MEMCACHED_BAD_KEY_PROVIDED;
RETURN_FROM_GET;
}
if (cas_token) {
uint64_t orig_cas_flag;
/*
* Enable CAS support, but only if it is currently disabled.
*/
orig_cas_flag = memcached_behavior_get(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS);
if (orig_cas_flag == 0) {
memcached_behavior_set(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS, 1);
}
status = memcached_mget_by_key(i_obj->memc, server_key, server_key_len, &key, &key_len, 1);
if (php_memc_handle_error(status TSRMLS_CC) < 0) {
RETURN_FROM_GET;
}
status = MEMCACHED_SUCCESS;
memcached_result_create(i_obj->memc, &result);
if (memcached_fetch_result(i_obj->memc, &result, &status) == NULL) {
/* This is for historical reasons */
if (status == MEMCACHED_END)
status = MEMCACHED_NOTFOUND;
/*
* If the result wasn't found, and we have the read-through callback, invoke
* it to get the value. The CAS token will be 0, because we cannot generate it
* ourselves.
*/
if (status == MEMCACHED_NOTFOUND && fci.size != 0) {
status = php_memc_do_cache_callback(getThis(), &fci, &fcc, key, key_len,
return_value TSRMLS_CC);
ZVAL_DOUBLE(cas_token, 0);
}
if (php_memc_handle_error(status TSRMLS_CC) < 0) {
memcached_result_free(&result);
RETURN_FROM_GET;
}
/* if we have a callback, all processing is done */
if (fci.size != 0) {
return;
}
}
payload = memcached_result_value(&result);
payload_len = memcached_result_length(&result);
flags = memcached_result_flags(&result);
cas = memcached_result_cas(&result);
if (php_memc_zval_from_payload(return_value, payload, payload_len, flags TSRMLS_CC) < 0) {
memcached_result_free(&result);
MEMC_G(rescode) = MEMC_RES_PAYLOAD_FAILURE;
RETURN_FROM_GET;
}
zval_dtor(cas_token);
ZVAL_DOUBLE(cas_token, (double)cas);
memcached_result_free(&result);
/*
* Restore the CAS support flag, but only if we had to turn it on.
*/
if (orig_cas_flag == 0) {
memcached_behavior_set(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS, orig_cas_flag);
}
return;
} else {
size_t dummy_length;
uint32_t dummy_flags;
int rc;
memcached_return dummy_status;
bool return_value_set = false;
status = memcached_mget_by_key(i_obj->memc, server_key, server_key_len, &key, &key_len, 1);
payload = memcached_fetch(i_obj->memc, NULL, NULL, &payload_len, &flags, &status);
/* This is for historical reasons */
if (status == MEMCACHED_END)
status = MEMCACHED_NOTFOUND;
/*
* If payload wasn't found and we have a read-through callback, invoke it to get
* the value. The callback will take care of storing the value back into memcache.
* The callback will set the return value.
*/
if (payload == NULL && status == MEMCACHED_NOTFOUND && fci.size != 0) {
status = php_memc_do_cache_callback(getThis(), &fci, &fcc, key, key_len,
return_value TSRMLS_CC);
return_value_set = true;
}
(void)memcached_fetch(i_obj->memc, NULL, NULL, &dummy_length, &dummy_flags, &dummy_status);
if (php_memc_handle_error(status TSRMLS_CC) < 0) {
if (payload) {
free(payload);
}
RETURN_FROM_GET;
}
/* if memcached gave a value and there was no callback, payload may be NULL */
if (!return_value_set) {
rc = php_memc_zval_from_payload(return_value, payload, payload_len, flags TSRMLS_CC);
free(payload);
if (rc < 0) {
MEMC_G(rescode) = MEMC_RES_PAYLOAD_FAILURE;
RETURN_FROM_GET;
}
}
}
}
/* }}} */
/* {{{ Memcached::getMulti(array keys [, array &cas_tokens ])
Returns values for the given keys or false */
PHP_METHOD(Memcached, getMulti)
{
php_memc_getMulti_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ Memcached::getMultiByKey(string server_key, array keys [, array &cas_tokens ])
Returns values for the given keys from the server identified by the server key or false */
PHP_METHOD(Memcached, getMultiByKey)
{
php_memc_getMulti_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ -- php_memc_getMulti_impl */
static void php_memc_getMulti_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key)
{
zval *keys = NULL;
char *server_key = NULL;
int server_key_len = 0;
size_t num_keys = 0;
zval **entry = NULL;
char *payload = NULL;
size_t payload_len = 0;
char **mkeys = NULL;
size_t *mkeys_len = NULL;
char *res_key = NULL;
size_t res_key_len = 0;
uint32_t flags;
uint64_t cas = 0;
zval *cas_tokens = NULL;
uint64_t orig_cas_flag;
zval *value;
long get_flags = 0;
int i = 0;
zend_bool preserve_order;
memcached_result_st result;
memcached_return status = MEMCACHED_SUCCESS;
MEMC_METHOD_INIT_VARS;
if (by_key) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sa|zl", &server_key,
&server_key_len, &keys, &cas_tokens, &get_flags) == FAILURE) {
return;
}
} else {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|zl", &keys, &cas_tokens, &get_flags) == FAILURE) {
return;
}
}
MEMC_METHOD_FETCH_OBJECT;
MEMC_G(rescode) = MEMCACHED_SUCCESS;
preserve_order = (get_flags & MEMC_GET_PRESERVE_ORDER);
num_keys = zend_hash_num_elements(Z_ARRVAL_P(keys));
mkeys = safe_emalloc(num_keys, sizeof(char *), 0);
mkeys_len = safe_emalloc(num_keys, sizeof(size_t), 0);
array_init(return_value);
/*
* Create the array of keys for libmemcached. If none of the keys were valid
* (strings), set bad key result code and return.
*/
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(keys));
zend_hash_get_current_data(Z_ARRVAL_P(keys), (void**)&entry) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(keys))) {
if (Z_TYPE_PP(entry) == IS_STRING && Z_STRLEN_PP(entry) > 0) {
mkeys[i] = Z_STRVAL_PP(entry);
mkeys_len[i] = Z_STRLEN_PP(entry);
if (preserve_order) {
add_assoc_null_ex(return_value, mkeys[i], mkeys_len[i]+1);
}
i++;
}
}
if (i == 0) {
MEMC_G(rescode) = MEMCACHED_BAD_KEY_PROVIDED;
efree(mkeys);
efree(mkeys_len);
RETURN_FROM_GET;
}
/*
* Enable CAS support, but only if it is currently disabled.
*/
if (cas_tokens) {
orig_cas_flag = memcached_behavior_get(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS);
if (orig_cas_flag == 0) {
memcached_behavior_set(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS, 1);
}
}
status = memcached_mget_by_key(i_obj->memc, server_key, server_key_len, mkeys, mkeys_len, i);
/*
* Restore the CAS support flag, but only if we had to turn it on.
*/
if (cas_tokens) {
if (orig_cas_flag == 0) {
memcached_behavior_set(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS, orig_cas_flag);
}
}
efree(mkeys);
efree(mkeys_len);
if (php_memc_handle_error(status TSRMLS_CC) < 0) {
RETURN_FROM_GET;
}
/*
* Iterate through the result set and create the result array. The CAS tokens are
* returned as doubles, because we cannot store potential 64-bit values in longs.
*/
if (cas_tokens) {
zval_dtor(cas_tokens);
array_init(cas_tokens);
}
status = MEMCACHED_SUCCESS;
memcached_result_create(i_obj->memc, &result);
while ((memcached_fetch_result(i_obj->memc, &result, &status)) != NULL) {
payload = memcached_result_value(&result);
payload_len = memcached_result_length(&result);
flags = memcached_result_flags(&result);
res_key = memcached_result_key_value(&result);
res_key_len = memcached_result_key_length(&result);
MAKE_STD_ZVAL(value);
if (php_memc_zval_from_payload(value, payload, payload_len, flags TSRMLS_CC) < 0) {
zval_ptr_dtor(&value);
zval_dtor(return_value);
MEMC_G(rescode) = MEMC_RES_PAYLOAD_FAILURE;
RETURN_FROM_GET;
}
add_assoc_zval_ex(return_value, res_key, res_key_len+1, value);
if (cas_tokens) {
cas = memcached_result_cas(&result);
add_assoc_double_ex(cas_tokens, res_key, res_key_len+1, (double)cas);
}
}
memcached_result_free(&result);
if (status != MEMCACHED_END && php_memc_handle_error(status TSRMLS_CC) < 0) {
zval_dtor(return_value);
RETURN_FROM_GET;
}
}
/* }}} */
/* {{{ Memcached::getDelayed(array keys [, bool with_cas [, mixed callback ] ])
Sends a request for the given keys and returns immediately */
PHP_METHOD(Memcached, getDelayed)
{
php_memc_getDelayed_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ Memcached::getDelayedByKey(string server_key, array keys [, bool with_cas [, mixed callback ] ])
Sends a request for the given keys from the server identified by the server key and returns immediately */
PHP_METHOD(Memcached, getDelayedByKey)
{
php_memc_getDelayed_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ -- php_memc_getDelayed_impl */
static void php_memc_getDelayed_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key)
{
zval *keys = NULL;
char *server_key = NULL;
int server_key_len = 0;
zend_bool with_cas = 0;
size_t num_keys = 0;
zval **entry = NULL;
char **mkeys = NULL;
size_t *mkeys_len = NULL;
uint64_t orig_cas_flag;
zend_fcall_info fci = empty_fcall_info;
zend_fcall_info_cache fcc = empty_fcall_info_cache;
int i = 0;
memcached_return status = MEMCACHED_SUCCESS;
MEMC_METHOD_INIT_VARS;
if (by_key) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sa|bf!", &server_key,
&server_key_len, &keys, &with_cas, &fci, &fcc) == FAILURE) {
return;
}
} else {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|bf!", &keys, &with_cas,
&fci, &fcc) == FAILURE) {
return;
}
}
MEMC_METHOD_FETCH_OBJECT;
MEMC_G(rescode) = MEMCACHED_SUCCESS;
/*
* Create the array of keys for libmemcached. If none of the keys were valid
* (strings), set bad key result code and return.
*/
num_keys = zend_hash_num_elements(Z_ARRVAL_P(keys));
mkeys = safe_emalloc(num_keys, sizeof(char *), 0);
mkeys_len = safe_emalloc(num_keys, sizeof(size_t), 0);
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(keys));
zend_hash_get_current_data(Z_ARRVAL_P(keys), (void**)&entry) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(keys))) {
if (Z_TYPE_PP(entry) == IS_STRING && Z_STRLEN_PP(entry) > 0) {
mkeys[i] = Z_STRVAL_PP(entry);
mkeys_len[i] = Z_STRLEN_PP(entry);
i++;
}
}
if (i == 0) {
MEMC_G(rescode) = MEMCACHED_BAD_KEY_PROVIDED;
efree(mkeys);
efree(mkeys_len);
RETURN_FROM_GET;
}
/*
* Enable CAS support, but only if it is currently disabled.
*/
if (with_cas) {
orig_cas_flag = memcached_behavior_get(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS);
if (orig_cas_flag == 0) {
memcached_behavior_set(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS, 1);
}
}
/*
* Issue the request, but collect results only if the result callback is provided.
*/
status = memcached_mget_by_key(i_obj->memc, server_key, server_key_len, mkeys, mkeys_len, i);
/*
* Restore the CAS support flag, but only if we had to turn it on.
*/
if (with_cas) {
if (orig_cas_flag == 0) {
memcached_behavior_set(i_obj->memc, MEMCACHED_BEHAVIOR_SUPPORT_CAS, orig_cas_flag);
}
}
efree(mkeys);
efree(mkeys_len);
if (php_memc_handle_error(status TSRMLS_CC) < 0) {
RETURN_FROM_GET;
}
if (fci.size != 0) {
/*
* We have a result callback. Iterate through the result set and invoke the
* callback for each one.
*/
memcached_result_st result;
memcached_result_create(i_obj->memc, &result);
while ((memcached_fetch_result(i_obj->memc, &result, &status)) != NULL) {
if (php_memc_do_result_callback(getThis(), &fci, &fcc, &result TSRMLS_CC) < 0) {
status = MEMCACHED_FAILURE;
break;
}
}
memcached_result_free(&result);
/* we successfully retrieved all rows */
if (status == MEMCACHED_END) {
status = MEMCACHED_SUCCESS;
}
if (php_memc_handle_error(status TSRMLS_CC) < 0) {
RETURN_FROM_GET;
}
}
RETURN_TRUE;
}
/* }}} */
/* {{{ Memcached::fetch()
Returns the next result from a previous delayed request */
PHP_METHOD(Memcached, fetch)
{
char *res_key = NULL;
size_t res_key_len = 0;
char *payload = NULL;
size_t payload_len = 0;
zval *value;
uint32_t flags = 0;
uint64_t cas = 0;
memcached_result_st result;
memcached_return status = MEMCACHED_SUCCESS;
MEMC_METHOD_INIT_VARS;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "") == FAILURE) {
return;
}
MEMC_METHOD_FETCH_OBJECT;
MEMC_G(rescode) = MEMCACHED_SUCCESS;
memcached_result_create(i_obj->memc, &result);
if ((memcached_fetch_result(i_obj->memc, &result, &status)) == NULL) {
php_memc_handle_error(status TSRMLS_CC);
memcached_result_free(&result);
RETURN_FROM_GET;
}
payload = memcached_result_value(&result);
payload_len = memcached_result_length(&result);
flags = memcached_result_flags(&result);
res_key = memcached_result_key_value(&result);
res_key_len = memcached_result_key_length(&result);
cas = memcached_result_cas(&result);
MAKE_STD_ZVAL(value);
if (php_memc_zval_from_payload(value, payload, payload_len, flags TSRMLS_CC) < 0) {
zval_ptr_dtor(&value);
MEMC_G(rescode) = MEMC_RES_PAYLOAD_FAILURE;
RETURN_FROM_GET;
}
array_init(return_value);
add_assoc_stringl_ex(return_value, ZEND_STRS("key"), res_key, res_key_len, 1);
add_assoc_zval_ex(return_value, ZEND_STRS("value"), value);
add_assoc_double_ex(return_value, ZEND_STRS("cas"), (double)cas);
memcached_result_free(&result);
}
/* }}} */
/* {{{ Memcached::fetchAll()
Returns all the results from a previous delayed request */
PHP_METHOD(Memcached, fetchAll)
{
char *res_key = NULL;
size_t res_key_len = 0;
char *payload = NULL;
size_t payload_len = 0;
zval *value, *entry;
uint32_t flags;
uint64_t cas = 0;
memcached_result_st result;
memcached_return status = MEMCACHED_SUCCESS;
MEMC_METHOD_INIT_VARS;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "") == FAILURE) {
return;
}
MEMC_METHOD_FETCH_OBJECT;
MEMC_G(rescode) = MEMCACHED_SUCCESS;
array_init(return_value);
memcached_result_create(i_obj->memc, &result);
while ((memcached_fetch_result(i_obj->memc, &result, &status)) != NULL) {
payload = memcached_result_value(&result);
payload_len = memcached_result_length(&result);
flags = memcached_result_flags(&result);
res_key = memcached_result_key_value(&result);
res_key_len = memcached_result_key_length(&result);
cas = memcached_result_cas(&result);
MAKE_STD_ZVAL(value);
if (php_memc_zval_from_payload(value, payload, payload_len, flags TSRMLS_CC) < 0) {
zval_ptr_dtor(&value);
zval_dtor(return_value);
MEMC_G(rescode) = MEMC_RES_PAYLOAD_FAILURE;
RETURN_FROM_GET;
}
MAKE_STD_ZVAL(entry);
array_init(entry);
add_assoc_stringl_ex(entry, ZEND_STRS("key"), res_key, res_key_len, 1);
add_assoc_zval_ex(entry, ZEND_STRS("value"), value);
add_assoc_double_ex(entry, ZEND_STRS("cas"), (double)cas);
add_next_index_zval(return_value, entry);
}
memcached_result_free(&result);
if (status != MEMCACHED_END && php_memc_handle_error(status TSRMLS_CC) < 0) {
zval_dtor(return_value);
RETURN_FROM_GET;
}
}
/* }}} */
/* {{{ Memcached::set(string key, mixed value [, int expiration ])
Sets the value for the given key */
PHP_METHOD(Memcached, set)
{
php_memc_store_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, MEMC_OP_SET, 0);
}
/* }}} */
/* {{{ Memcached::setByKey(string server_key, string key, mixed value [, int expiration ])
Sets the value for the given key on the server identified by the server key */
PHP_METHOD(Memcached, setByKey)
{
php_memc_store_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, MEMC_OP_SET, 1);
}
/* }}} */
/* {{{ Memcached::setMulti(array items [, int expiration ])
Sets the keys/values specified in the items array */
PHP_METHOD(Memcached, setMulti)
{
php_memc_setMulti_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ Memcached::setMultiByKey(string server_key, array items [, int expiration ])
Sets the keys/values specified in the items array on the server identified by the given server key */
PHP_METHOD(Memcached, setMultiByKey)
{
php_memc_setMulti_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ -- php_memc_setMulti_impl */
static void php_memc_setMulti_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_key)
{
zval *entries;
char *server_key = NULL;
int server_key_len = 0;
time_t expiration = 0;
zval **entry;
char *str_key;
uint str_key_len;
ulong num_key;
char *payload;
size_t payload_len;
uint32_t flags = 0;
memcached_return status;
MEMC_METHOD_INIT_VARS;
if (by_key) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sa|l", &server_key,
&server_key_len, &entries, &expiration) == FAILURE) {
return;
}
} else {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|l", &entries, &expiration) == FAILURE) {
return;
}
}
MEMC_METHOD_FETCH_OBJECT;
MEMC_G(rescode) = MEMCACHED_SUCCESS;
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(entries));
zend_hash_get_current_data(Z_ARRVAL_P(entries), (void**)&entry) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(entries))) {
if (zend_hash_get_current_key_ex(Z_ARRVAL_P(entries), &str_key, &str_key_len, &num_key, 0, NULL) != HASH_KEY_IS_STRING) {
continue;
}
flags = 0;
if (i_obj->compression) {
flags |= MEMC_VAL_COMPRESSED;
}
payload = php_memc_zval_to_payload(*entry, &payload_len, &flags, i_obj->serializer TSRMLS_CC);
if (payload == NULL) {
MEMC_G(rescode) = MEMC_RES_PAYLOAD_FAILURE;
RETURN_FALSE;
}
if (!by_key) {
server_key = str_key;
server_key_len = str_key_len-1;
}
status = memcached_set_by_key(i_obj->memc, server_key, server_key_len, str_key,
str_key_len-1, payload, payload_len, expiration, flags);
efree(payload);
if (php_memc_handle_error(status TSRMLS_CC) < 0) {
RETURN_FALSE;
}
}
RETURN_TRUE;
}
/* }}} */
/* {{{ Memcached::add(string key, mixed value [, int expiration ])
Sets the value for the given key, failing if the key already exists */
PHP_METHOD(Memcached, add)
{
php_memc_store_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, MEMC_OP_ADD, 0);
}