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memcache.c
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memcache.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2007 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 |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Antony Dovgal <tony2001@phpclub.net> |
| Mikael Johansson <mikael AT synd DOT info> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/php_string.h"
#include "php_memcache.h"
/* True global resources - no need for thread safety here */
static int le_memcache_pool, le_memcache_server;
static zend_class_entry *memcache_pool_ce;
static zend_class_entry *memcache_ce;
ZEND_EXTERN_MODULE_GLOBALS(memcache)
/* {{{ memcache_functions[]
*/
ZEND_BEGIN_ARG_INFO(arginfo_memcache_get, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_memcache_object_get, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO()
zend_function_entry memcache_functions[] = {
PHP_FE(memcache_connect, NULL)
PHP_FE(memcache_pconnect, NULL)
PHP_FE(memcache_add_server, NULL)
PHP_FE(memcache_set_server_params, NULL)
PHP_FE(memcache_set_failure_callback, NULL)
PHP_FE(memcache_get_server_status, NULL)
PHP_FE(memcache_get_version, NULL)
PHP_FE(memcache_add, NULL)
PHP_FE(memcache_set, NULL)
PHP_FE(memcache_replace, NULL)
PHP_FE(memcache_cas, NULL)
PHP_FE(memcache_append, NULL)
PHP_FE(memcache_prepend, NULL)
PHP_FE(memcache_get, arginfo_memcache_get)
PHP_FE(memcache_delete, NULL)
PHP_FE(memcache_debug, NULL)
PHP_FE(memcache_get_stats, NULL)
PHP_FE(memcache_get_extended_stats, NULL)
PHP_FE(memcache_set_compress_threshold, NULL)
PHP_FE(memcache_increment, NULL)
PHP_FE(memcache_decrement, NULL)
PHP_FE(memcache_close, NULL)
PHP_FE(memcache_flush, NULL)
PHP_FE(memcache_set_sasl_auth_data, NULL)
{NULL, NULL, NULL}
};
static zend_function_entry php_memcache_pool_class_functions[] = {
PHP_NAMED_FE(connect, zif_memcache_pool_connect, NULL)
PHP_NAMED_FE(addserver, zif_memcache_pool_addserver, NULL)
PHP_FALIAS(setserverparams, memcache_set_server_params, NULL)
PHP_FALIAS(setfailurecallback, memcache_set_failure_callback, NULL)
PHP_FALIAS(getserverstatus, memcache_get_server_status, NULL)
PHP_NAMED_FE(findserver, zif_memcache_pool_findserver, NULL)
PHP_FALIAS(getversion, memcache_get_version, NULL)
PHP_FALIAS(add, memcache_add, NULL)
PHP_FALIAS(set, memcache_set, NULL)
PHP_FALIAS(replace, memcache_replace, NULL)
PHP_FALIAS(cas, memcache_cas, NULL)
PHP_FALIAS(append, memcache_append, NULL)
PHP_FALIAS(prepend, memcache_prepend, NULL)
PHP_FALIAS(get, memcache_get, arginfo_memcache_object_get)
PHP_FALIAS(delete, memcache_delete, NULL)
PHP_FALIAS(getstats, memcache_get_stats, NULL)
PHP_FALIAS(getextendedstats, memcache_get_extended_stats, NULL)
PHP_FALIAS(setcompressthreshold, memcache_set_compress_threshold, NULL)
PHP_FALIAS(increment, memcache_increment, NULL)
PHP_FALIAS(decrement, memcache_decrement, NULL)
PHP_FALIAS(close, memcache_close, NULL)
PHP_FALIAS(flush, memcache_flush, NULL)
PHP_FALIAS(setSaslAuthData, memcache_set_sasl_auth_data, NULL)
{NULL, NULL, NULL}
};
static zend_function_entry php_memcache_class_functions[] = {
PHP_FALIAS(connect, memcache_connect, NULL)
PHP_FALIAS(pconnect, memcache_pconnect, NULL)
PHP_FALIAS(addserver, memcache_add_server, NULL)
{NULL, NULL, NULL}
};
/* }}} */
/* {{{ memcache_module_entry
*/
zend_module_entry memcache_module_entry = {
STANDARD_MODULE_HEADER,
"memcache",
memcache_functions,
PHP_MINIT(memcache),
PHP_MSHUTDOWN(memcache),
PHP_RINIT(memcache),
NULL,
PHP_MINFO(memcache),
PHP_MEMCACHE_VERSION,
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_MEMCACHE
ZEND_GET_MODULE(memcache)
#endif
static PHP_INI_MH(OnUpdateChunkSize) /* {{{ */
{
zend_long val;
char *endptr = NULL;
val = ZEND_STRTOL(ZSTR_VAL(new_value), &endptr, 10);
if (!endptr || (*endptr != '\0') || val <= 0) {
php_error_docref(NULL, E_WARNING, "memcache.chunk_size must be a positive integer ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return OnUpdateLong(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateFailoverAttempts) /* {{{ */
{
zend_long val;
char *endptr = NULL;
val = ZEND_STRTOL(ZSTR_VAL(new_value), &endptr, 10);
if (!endptr || (*endptr != '\0') || val <= 0) {
php_error_docref(NULL, E_WARNING, "memcache.max_failover_attempts must be a positive integer ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return OnUpdateLong(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateProtocol) /* {{{ */
{
if (!strcasecmp(ZSTR_VAL(new_value), "ascii")) {
MEMCACHE_G(protocol) = MMC_ASCII_PROTOCOL;
}
else if (!strcasecmp(ZSTR_VAL(new_value), "binary")) {
MEMCACHE_G(protocol) = MMC_BINARY_PROTOCOL;
}
else {
php_error_docref(NULL, E_WARNING, "memcache.protocol must be in set {ascii, binary} ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return SUCCESS;
}
/* }}} */
static PHP_INI_MH(OnUpdateHashStrategy) /* {{{ */
{
if (!strcasecmp(ZSTR_VAL(new_value), "standard")) {
MEMCACHE_G(hash_strategy) = MMC_STANDARD_HASH;
}
else if (!strcasecmp(ZSTR_VAL(new_value), "consistent")) {
MEMCACHE_G(hash_strategy) = MMC_CONSISTENT_HASH;
}
else {
php_error_docref(NULL, E_WARNING, "memcache.hash_strategy must be in set {standard, consistent} ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return SUCCESS;
}
/* }}} */
static PHP_INI_MH(OnUpdateHashFunction) /* {{{ */
{
if (!strcasecmp(ZSTR_VAL(new_value), "crc32")) {
MEMCACHE_G(hash_function) = MMC_HASH_CRC32;
}
else if (!strcasecmp(ZSTR_VAL(new_value), "fnv")) {
MEMCACHE_G(hash_function) = MMC_HASH_FNV1A;
}
else {
php_error_docref(NULL, E_WARNING, "memcache.hash_function must be in set {crc32, fnv} ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return SUCCESS;
}
/* }}} */
static PHP_INI_MH(OnUpdateRedundancy) /* {{{ */
{
zend_long val;
char *endptr = NULL;
val = ZEND_STRTOL(ZSTR_VAL(new_value), &endptr, 10);
if (!endptr || (*endptr != '\0') || val <= 0) {
php_error_docref(NULL, E_WARNING, "memcache.redundancy must be a positive integer ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return OnUpdateLong(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateCompressThreshold) /* {{{ */
{
zend_long val;
char *endptr = NULL;
val = ZEND_STRTOL(ZSTR_VAL(new_value), &endptr, 10);
if (!endptr || (*endptr != '\0') || val < 0) {
php_error_docref(NULL, E_WARNING, "memcache.compress_threshold must be a positive integer ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return OnUpdateLong(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdateLockTimeout) /* {{{ */
{
zend_long val;
char *endptr = NULL;
val = ZEND_STRTOL(ZSTR_VAL(new_value), &endptr, 10);
if (!endptr || (*endptr != '\0') || val <= 0) {
php_error_docref(NULL, E_WARNING, "memcache.lock_timeout must be a positive integer ('%s' given)", ZSTR_VAL(new_value));
return FAILURE;
}
return OnUpdateLong(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
static PHP_INI_MH(OnUpdatePrefixStaticKey) /* {{{ */
{
int i;
if (new_value) {
for (i=0 ; i<ZSTR_LEN(new_value) ; i++) {
if (ZSTR_VAL(new_value)[i]=='.') {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "memcache.session_prefix_static_key cannot have dot inside (.)");
return FAILURE;
}
}
}
return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
/* }}} */
/* {{{ PHP_INI */
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("memcache.allow_failover", "1", PHP_INI_ALL, OnUpdateLong, allow_failover, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.max_failover_attempts", "20", PHP_INI_ALL, OnUpdateFailoverAttempts, max_failover_attempts, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.default_port", "11211", PHP_INI_ALL, OnUpdateLong, default_port, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.chunk_size", "32768", PHP_INI_ALL, OnUpdateChunkSize, chunk_size, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.protocol", "ascii", PHP_INI_ALL, OnUpdateProtocol, protocol, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.hash_strategy", "consistent", PHP_INI_ALL, OnUpdateHashStrategy, hash_strategy, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.hash_function", "crc32", PHP_INI_ALL, OnUpdateHashFunction, hash_function, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.redundancy", "1", PHP_INI_ALL, OnUpdateRedundancy, redundancy, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.session_redundancy", "2", PHP_INI_ALL, OnUpdateRedundancy, session_redundancy, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.compress_threshold", "20000", PHP_INI_ALL, OnUpdateCompressThreshold, compress_threshold, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.lock_timeout", "15", PHP_INI_ALL, OnUpdateLockTimeout, lock_timeout, zend_memcache_globals, memcache_globals)
STD_PHP_INI_BOOLEAN("memcache.session_prefix_host_key", "0", PHP_INI_ALL, OnUpdateBool, session_prefix_host_key, zend_memcache_globals, memcache_globals)
STD_PHP_INI_BOOLEAN("memcache.session_prefix_host_key_remove_www", "1", PHP_INI_ALL, OnUpdateBool, session_prefix_host_key_remove_www, zend_memcache_globals, memcache_globals)
STD_PHP_INI_BOOLEAN("memcache.session_prefix_host_key_remove_subdomain", "0", PHP_INI_ALL, OnUpdateBool, session_prefix_host_key_remove_subdomain, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.session_prefix_static_key", NULL, PHP_INI_ALL, OnUpdatePrefixStaticKey, session_prefix_static_key, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.session_save_path", NULL, PHP_INI_ALL, OnUpdateString, session_save_path, zend_memcache_globals, memcache_globals)
STD_PHP_INI_BOOLEAN("memcache.prefix_host_key", "0", PHP_INI_ALL, OnUpdateBool, prefix_host_key, zend_memcache_globals, memcache_globals)
STD_PHP_INI_BOOLEAN("memcache.prefix_host_key_remove_www", "1", PHP_INI_ALL, OnUpdateBool, prefix_host_key_remove_www, zend_memcache_globals, memcache_globals)
STD_PHP_INI_BOOLEAN("memcache.prefix_host_key_remove_subdomain", "0", PHP_INI_ALL, OnUpdateBool, prefix_host_key_remove_subdomain, zend_memcache_globals, memcache_globals)
STD_PHP_INI_ENTRY("memcache.prefix_static_key", NULL, PHP_INI_ALL, OnUpdatePrefixStaticKey, prefix_static_key, zend_memcache_globals, memcache_globals)
PHP_INI_END()
/* }}} */
/* {{{ internal function protos */
static void _mmc_pool_list_dtor(zend_resource*);
static void _mmc_server_list_dtor(zend_resource*);
static void php_mmc_set_failure_callback(mmc_pool_t *, zval *, zval *);
static void php_mmc_failure_callback(mmc_pool_t *, mmc_t *, zval *);
/* }}} */
/* {{{ php_memcache_init_globals()
*/
static void php_memcache_init_globals(zend_memcache_globals *memcache_globals_p)
{
MEMCACHE_G(hash_strategy) = MMC_STANDARD_HASH;
MEMCACHE_G(hash_function) = MMC_HASH_CRC32;
}
/* }}} */
/* {{{ get_session_key_prefix
*/
static char *get_session_key_prefix() {
char *server_name=NULL, *prefix=NULL;
int static_key_len=0, server_name_len=0, i;
zval *array, *token;
if (MEMCACHE_G(session_prefix_static_key)) {
static_key_len=strlen(MEMCACHE_G(session_prefix_static_key));
}
zend_is_auto_global_str("_SERVER", sizeof("_SERVER")-1);
if (MEMCACHE_G(session_prefix_host_key)) {
if ((array = zend_hash_str_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER")-1)) &&
Z_TYPE_P(array) == IS_ARRAY &&
(token = zend_hash_str_find(Z_ARRVAL_P(array), "SERVER_NAME", sizeof("SERVER_NAME")-1)) &&
Z_TYPE_P(token) == IS_STRING) {
if (MEMCACHE_G(session_prefix_host_key_remove_www) && !strncasecmp("www.",Z_STRVAL_P(token),4)) {
server_name=Z_STRVAL_P(token)+4;
} else {
server_name=Z_STRVAL_P(token);
}
if(MEMCACHE_G(session_prefix_host_key_remove_subdomain) && server_name) {
int dots=0;
char *dots_ptr[3]={NULL,NULL,NULL};
for (i=strlen(server_name) ; i>0 ; i--) {
if (dots==sizeof(dots_ptr)) {
break;
}
if (server_name[i]=='.') {
dots_ptr[dots]=&server_name[i];
dots++;
}
}
if (dots_ptr[1] && *(dots_ptr[1]+1)) {
server_name=dots_ptr[1]+1;
}
}
server_name_len=(strlen(server_name));
}
}
if (!static_key_len && !server_name_len) {
return NULL;
}
prefix=emalloc(static_key_len + server_name_len + 1);
if (static_key_len)
memcpy(prefix, MEMCACHE_G(session_prefix_static_key), static_key_len);
if (server_name_len)
memcpy(prefix + static_key_len, server_name, server_name_len);
prefix[static_key_len + server_name_len]='\0';
return prefix;
}
/* }}} */
/* get_key_prefix
*/
static char *get_key_prefix() {
char *server_name=NULL, *prefix=NULL;
int static_key_len=0, server_name_len=0, i;
zval *array, *token;
if (MEMCACHE_G(prefix_static_key)) {
static_key_len=strlen(MEMCACHE_G(prefix_static_key));
}
if (MEMCACHE_G(prefix_host_key)) {
if ((array = zend_hash_str_find(&EG(symbol_table), "_SERVER", sizeof("_SERVER")-1)) &&
Z_TYPE_P(array) == IS_ARRAY &&
(token = zend_hash_str_find(Z_ARRVAL_P(array), "SERVER_NAME", sizeof("SERVER_NAME")-1)) &&
Z_TYPE_P(token) == IS_STRING) {
if (MEMCACHE_G(prefix_host_key_remove_www) && !strncasecmp("www.",Z_STRVAL_P(token),4)) {
server_name=Z_STRVAL_P(token)+4;
} else {
server_name=Z_STRVAL_P(token);
}
if(MEMCACHE_G(prefix_host_key_remove_subdomain) && server_name) {
int dots=0;
char *dots_ptr[3]={NULL,NULL,NULL};
for (i=strlen(server_name) ; i>0 ; i--) {
if (dots==sizeof(dots_ptr)) {
break;
}
if (server_name[i]=='.') {
dots_ptr[dots]=&server_name[i];
dots++;
}
}
if (dots_ptr[1] && *(dots_ptr[1]+1)) {
server_name=dots_ptr[1]+1;
}
}
server_name_len=(strlen(server_name));
}
}
if (!static_key_len && !server_name_len) {
return NULL;
}
prefix=emalloc(static_key_len + server_name_len + 1);
if (static_key_len)
memcpy(prefix, MEMCACHE_G(prefix_static_key), static_key_len);
if (server_name_len)
memcpy(prefix + static_key_len, server_name, server_name_len);
prefix[static_key_len + server_name_len]='\0';
return prefix;
}
/* }}} */
/* {{{ PHP_RINIT_FUNCTION
*/
PHP_RINIT_FUNCTION(memcache)
{
MEMCACHE_G(session_key_prefix) = get_session_key_prefix(TSRMLS_C);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(memcache)
{
zend_class_entry ce;
INIT_CLASS_ENTRY(ce, "MemcachePool", php_memcache_pool_class_functions);
memcache_pool_ce = zend_register_internal_class(&ce);
INIT_CLASS_ENTRY(ce, "Memcache", php_memcache_class_functions);
memcache_ce = zend_register_internal_class_ex(&ce, memcache_pool_ce);
le_memcache_pool = zend_register_list_destructors_ex(_mmc_pool_list_dtor, NULL, "memcache connection", module_number);
le_memcache_server = zend_register_list_destructors_ex(NULL, _mmc_server_list_dtor, "persistent memcache connection", module_number);
#ifdef ZTS
ts_allocate_id(&memcache_globals_id, sizeof(zend_memcache_globals), (ts_allocate_ctor) php_memcache_init_globals, NULL);
#else
php_memcache_init_globals(&memcache_globals);
#endif
REGISTER_LONG_CONSTANT("MEMCACHE_COMPRESSED", MMC_COMPRESSED, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MEMCACHE_USER1", MMC_RESERVED_APPLICATIONDEFINEDFLAG_12, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MEMCACHE_USER2", MMC_RESERVED_APPLICATIONDEFINEDFLAG_13, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MEMCACHE_USER3", MMC_RESERVED_APPLICATIONDEFINEDFLAG_14, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MEMCACHE_USER4", MMC_RESERVED_APPLICATIONDEFINEDFLAG_15, CONST_CS | CONST_PERSISTENT);
REGISTER_INI_ENTRIES();
#if HAVE_MEMCACHE_SESSION
REGISTER_LONG_CONSTANT("MEMCACHE_HAVE_SESSION", 1, CONST_CS | CONST_PERSISTENT);
php_session_register_module(ps_memcache_ptr);
#else
REGISTER_LONG_CONSTANT("MEMCACHE_HAVE_SESSION", 0, CONST_CS | CONST_PERSISTENT);
#endif
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(memcache)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(memcache)
{
php_info_print_table_start();
php_info_print_table_header(2, "memcache support", "enabled");
php_info_print_table_row(2, "Version", PHP_MEMCACHE_VERSION);
php_info_print_table_row(2, "Revision", "$Revision$");
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* ------------------
internal functions
------------------ */
static void _mmc_pool_list_dtor(zend_resource *rsrc) /* {{{ */
{
mmc_pool_t *pool = (mmc_pool_t *)rsrc->ptr;
if (!Z_ISUNDEF(pool->failure_callback_param)) {
Z_DELREF(pool->failure_callback_param);
ZVAL_UNDEF(&pool->failure_callback_param);
}
mmc_pool_free(pool);
}
/* }}} */
static void _mmc_server_list_dtor(zend_resource *rsrc) /* {{{ */
{
mmc_server_free((mmc_t *)rsrc->ptr);
}
/* }}} */
static int mmc_get_pool(zval *id, mmc_pool_t **pool) /* {{{ */
{
zval *zv;
if (Z_TYPE_P(id) != IS_OBJECT || (zv = zend_hash_str_find(Z_OBJPROP_P(id), "connection", sizeof("connection")-1)) == NULL) {
php_error_docref(NULL, E_WARNING, "No servers added to memcache connection");
return 0;
}
if (Z_TYPE_P(zv) != IS_RESOURCE || (*pool = zend_fetch_resource_ex(zv, "connection", le_memcache_pool)) == NULL) {
php_error_docref(NULL, E_WARNING, "Invalid MemcachePool->connection member variable");
return 0;
}
return 1;
}
/* }}} */
int mmc_stored_handler(mmc_t *mmc, mmc_request_t *request, int response, const char *message, unsigned int message_len, void *param) /*
handles SET/ADD/REPLACE response, param is a zval pointer to store result into {{{ */
{
zval *result = (zval *)param;
if (response == MMC_OK) {
if (Z_TYPE_P(result) == IS_NULL) {
ZVAL_TRUE(result);
}
return MMC_REQUEST_DONE;
}
/* return FALSE or catch memory errors without failover */
if (response == MMC_RESPONSE_EXISTS || response == MMC_RESPONSE_OUT_OF_MEMORY || response == MMC_RESPONSE_TOO_LARGE
|| response == MMC_RESPONSE_CLIENT_ERROR) {
ZVAL_FALSE(result);
if (response != MMC_RESPONSE_EXISTS) {
/* trigger notice but no need for failover */
php_error_docref(NULL, E_NOTICE, "Server %s (tcp %d, udp %d) failed with: %s (%d)",
mmc->host, mmc->tcp.port, mmc->udp.port, message, response);
}
return MMC_REQUEST_DONE;
}
return mmc_request_failure(mmc, request->io, message, message_len, 0);
}
/* }}} */
static void php_mmc_store(INTERNAL_FUNCTION_PARAMETERS, int op) /* {{{ */
{
mmc_pool_t *pool;
mmc_request_t *request;
zval *keys, *value = 0, *mmc_object = getThis();
zend_long flags = 0, exptime = 0, cas = 0;
if (mmc_object == NULL) {
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Oz|zlll", &mmc_object, memcache_pool_ce, &keys, &value, &flags, &exptime, &cas) == FAILURE) {
return;
}
}
else {
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|zlll", &keys, &value, &flags, &exptime, &cas) == FAILURE) {
return;
}
}
if (!mmc_get_pool(mmc_object, &pool) || !pool->num_servers) {
RETURN_FALSE;
}
RETVAL_NULL();
if (Z_TYPE_P(keys) == IS_ARRAY) {
zend_string *key;
zval *val;
zend_ulong index;
int release;
ZEND_HASH_FOREACH_KEY_VAL(Z_ARRVAL_P(keys), index, key, val ) {
if (key == NULL) {
key = strpprintf(0, ZEND_ULONG_FMT, index);
release = 1;
} else {
release = 0;
}
/* allocate request */
request = mmc_pool_request(pool, MMC_PROTO_TCP,
mmc_stored_handler, return_value, mmc_pool_failover_handler, NULL);
if (mmc_prepare_key_ex(ZSTR_VAL(key), ZSTR_LEN(key), request->key, &(request->key_len), MEMCACHE_G(key_prefix)) != MMC_OK) {
php_error_docref(NULL, E_WARNING, "Invalid key");
mmc_pool_release(pool, request);
if (release) {
zend_string_release(key);
}
continue;
}
if (release) {
zend_string_release(key);
}
/* assemble command */
if (pool->protocol->store(pool, request, op, request->key, request->key_len, flags, exptime, cas, val) != MMC_OK) {
mmc_pool_release(pool, request);
continue;
}
/* schedule request */
if (mmc_pool_schedule_key(pool, request->key, request->key_len, request, MEMCACHE_G(redundancy)) != MMC_OK) {
continue;
}
/* begin sending requests immediatly */
mmc_pool_select(pool);
} ZEND_HASH_FOREACH_END();
}
else if (value) {
/* allocate request */
request = mmc_pool_request(pool, MMC_PROTO_TCP, mmc_stored_handler, return_value, mmc_pool_failover_handler, NULL);
if (mmc_prepare_key(keys, request->key, &(request->key_len)) != MMC_OK) {
php_error_docref(NULL, E_WARNING, "Invalid key");
mmc_pool_release(pool, request);
RETURN_FALSE;
}
/* assemble command */
if (pool->protocol->store(pool, request, op, request->key, request->key_len, flags, exptime, cas, value) != MMC_OK) {
mmc_pool_release(pool, request);
RETURN_FALSE;
}
/* schedule request */
if (mmc_pool_schedule_key(pool, request->key, request->key_len, request, MEMCACHE_G(redundancy)) != MMC_OK) {
RETURN_FALSE;
}
}
else {
WRONG_PARAM_COUNT;
}
/* execute all requests */
mmc_pool_run(pool);
if (Z_TYPE_P(return_value) == IS_NULL) {
RETVAL_FALSE;
}
}
/* }}} */
int mmc_numeric_response_handler(mmc_t *mmc, mmc_request_t *request, int response, const char *message, unsigned int message_len, void *param) /*
handles a mutate response line, param is a zval pointer to store result into {{{ */
{
zval *result = (zval *)param;
if (response == MMC_OK) {
if (Z_TYPE_P(result) == IS_ARRAY) {
add_assoc_bool_ex(result, request->key, request->key_len + 1, 1);
}
else if (Z_TYPE_P(result) == IS_NULL) {
/* switch only from null to true, not from false to true */
ZVAL_TRUE(result);
}
return MMC_REQUEST_DONE;
}
if (response == MMC_RESPONSE_NOT_FOUND || response == MMC_RESPONSE_CLIENT_ERROR) {
if (Z_TYPE_P(result) == IS_ARRAY) {
add_assoc_bool_ex(result, request->key, request->key_len + 1, 0);
}
else {
ZVAL_FALSE(result);
}
if (response != MMC_RESPONSE_NOT_FOUND) {
php_error_docref(NULL,
E_NOTICE, "Server %s (tcp %d, udp %d) failed with: %s (%d)",
mmc->host, mmc->tcp.port,
mmc->udp.port, message, response);
}
return MMC_REQUEST_DONE;
}
return mmc_request_failure(mmc, request->io, message, message_len, 0);
}
/* }}} */
static void php_mmc_numeric(INTERNAL_FUNCTION_PARAMETERS, int deleted, int invert) /*
sends one or several commands which have a single optional numeric parameter (incr, decr, delete) {{{ */
{
mmc_pool_t *pool;
zval *mmc_object = getThis();
zval *keys;
zend_long value = 1, defval = 0, exptime = 0;
mmc_request_t *request;
void *value_handler_param[3];
int defval_used = 0;
if (mmc_object == NULL) {
if (deleted) {
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Oz|l", &mmc_object, memcache_pool_ce, &keys, &value) == FAILURE) {
return;
}
}
else {
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Oz|lll", &mmc_object, memcache_pool_ce, &keys, &value, &defval, &exptime) == FAILURE) {
return;
}
defval_used = ZEND_NUM_ARGS() >= 4;
}
}
else {
if (deleted) {
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|l", &keys, &value) == FAILURE) {
return;
}
}
else {
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|lll", &keys, &value, &defval, &exptime) == FAILURE) {
return;
}
defval_used = ZEND_NUM_ARGS() >= 3;
}
}
if (!mmc_get_pool(mmc_object, &pool) || !pool->num_servers) {
RETURN_FALSE;
}
value_handler_param[0] = return_value;
value_handler_param[1] = NULL;
value_handler_param[2] = NULL;
if (Z_TYPE_P(keys) == IS_ARRAY) {
zval *key;
if (deleted) {
/* changed to true/false by mmc_numeric_response_handler */
RETVAL_NULL();
}
else {
/* populated with responses by mmc_numeric_response_handler and mmc_value_handler_multi */
array_init(return_value);
}
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(keys), key) {
/* allocate request */
request = mmc_pool_request(
pool, MMC_PROTO_TCP, mmc_numeric_response_handler, return_value,
mmc_pool_failover_handler, NULL);
request->value_handler = mmc_value_handler_multi;
request->value_handler_param = value_handler_param;
if (mmc_prepare_key(key, request->key, &(request->key_len)) != MMC_OK) {
mmc_pool_release(pool, request);
php_error_docref(NULL, E_WARNING, "Invalid key");
continue;
}
if (deleted) {
pool->protocol->delete(request, request->key, request->key_len, exptime);
}
else {
pool->protocol->mutate(request, key, request->key, request->key_len, invert ? -value : value, defval, defval_used, exptime);
}
/* schedule request */
if (mmc_pool_schedule_key(pool, request->key, request->key_len, request, MEMCACHE_G(redundancy)) != MMC_OK) {
continue;
}
/* begin sending requests immediatly */
mmc_pool_select(pool);
} ZEND_HASH_FOREACH_END();
}
else {
/* changed to true/false by mmc_numeric_response_handler or set to a value
* by mmc_value_handler_single if incr/decr returns one */
RETVAL_NULL();
/* allocate request */
request = mmc_pool_request(pool, MMC_PROTO_TCP,
mmc_numeric_response_handler, return_value, mmc_pool_failover_handler, NULL);
request->value_handler = mmc_value_handler_single;
request->value_handler_param = value_handler_param;
if (mmc_prepare_key(keys, request->key, &(request->key_len)) != MMC_OK) {
mmc_pool_release(pool, request);
php_error_docref(NULL, E_WARNING, "Invalid key");
RETURN_FALSE;
}
if (deleted) {
pool->protocol->delete(request, request->key, request->key_len, exptime);
}
else {
pool->protocol->mutate(request, keys, request->key, request->key_len, invert ? -value : value, defval, defval_used, exptime);
}
/* schedule request */
if (mmc_pool_schedule_key(pool, request->key, request->key_len, request, MEMCACHE_G(redundancy)) != MMC_OK) {
RETURN_FALSE;
}
}
/* execute all requests */
mmc_pool_run(pool);
}
/* }}} */
/*TODO: in php73, we should use zend_register_persistent_resource , e.g.:
char *persistent_id;
persistent_id = pemalloc(key_len + 1, 1);
memcpy((char *)persistent_id, key, key_len+1);
if (zend_register_persistent_resource ( (char*) persistent_id, key_len, mmc, le_memcache_server) == NULL) ;
then not forget to pefree, check refcounts in _mmc_server_free / _mmc_server_list_dtor , etc.
otherwise we will leak mem with persistent connections /run into other trouble with later versions
*/
mmc_t *mmc_find_persistent(const char *host, int host_len, unsigned short port, unsigned short udp_port, double timeout, int retry_interval) /* {{{ */
{
mmc_t *mmc;
zend_resource *le;
char *key;
int key_len;
key_len = spprintf(&key, 0, "memcache:server:%s:%u:%u", host, port, udp_port);
if ((le = zend_hash_str_find_ptr(&EG(persistent_list), key, key_len)) == NULL) {
mmc = mmc_server_new(host, host_len, port, udp_port, 1, timeout, retry_interval);
le = zend_register_resource(mmc, le_memcache_server);
/* register new persistent connection */
if (zend_hash_str_update_mem(&EG(persistent_list), key, key_len, le, sizeof(*le)) == NULL) {
mmc_server_free(mmc);
mmc = NULL;
} else {
MEMCACHE_LIST_INSERT(mmc, le_memcache_server);
}
}
else if (le->type != le_memcache_server || le->ptr == NULL) {
zend_hash_str_del(&EG(persistent_list), key, key_len);
mmc = mmc_server_new(host, host_len, port, udp_port, 1, timeout, retry_interval);
le->type = le_memcache_server;
le->ptr = mmc;
#if PHP_VERSION_ID < 70300
GC_REFCOUNT(le) = 1;
#else
GC_SET_REFCOUNT(le, 1);
#endif
/* register new persistent connection */
if (zend_hash_str_update_mem(&EG(persistent_list), key, key_len, le, sizeof(*le)) == NULL) {
mmc_server_free(mmc);
mmc = NULL;
}
else {
MEMCACHE_LIST_INSERT(mmc, le_memcache_server);
}
}
else {
mmc = (mmc_t *)le->ptr;
mmc->timeout = double_to_timeval(timeout);
mmc->tcp.retry_interval = retry_interval;
/* attempt to reconnect this node before failover in case connection has gone away */
if (mmc->tcp.status == MMC_STATUS_CONNECTED) {
mmc->tcp.status = MMC_STATUS_UNKNOWN;
}
if (mmc->udp.status == MMC_STATUS_CONNECTED) {
mmc->udp.status = MMC_STATUS_UNKNOWN;
}
}
efree(key);
return mmc;
}
/* }}} */
static mmc_t *php_mmc_pool_addserver(
zval *mmc_object, const char *host, int host_len, long tcp_port, long udp_port, long weight,
zend_bool persistent, double timeout, long retry_interval, zend_bool status, mmc_pool_t **pool_result) /* {{{ */
{
zval *connection;
mmc_pool_t *pool;
mmc_t *mmc;
zend_resource *list_res;
if (weight < 1) {
php_error_docref(NULL, E_WARNING, "weight must be a positive integer");
return NULL;
}
if (tcp_port > 65635 || tcp_port < 0) {
php_error_docref(NULL, E_WARNING, "invalid tcp port number");
return NULL;
}
if (udp_port > 65635 || udp_port < 0) {
php_error_docref(NULL, E_WARNING, "invalid udp port number");
return NULL;
}
/* initialize pool if need be */
if ((connection = zend_hash_str_find(Z_OBJPROP_P(mmc_object), "connection", sizeof("connection")-1)) == NULL) {
pool = mmc_pool_new();
pool->failure_callback = (mmc_failure_callback) &php_mmc_failure_callback;
list_res = zend_register_resource(pool, le_memcache_pool);
add_property_resource(mmc_object, "connection", list_res);
#if PHP_VERSION_ID < 70300
GC_REFCOUNT(list_res)++;
#else
GC_ADDREF(list_res);
#endif
}
else {
pool = zend_fetch_resource_ex(connection, "connection", le_memcache_pool);
if (!pool) {
php_error_docref(NULL, E_WARNING, "Unknown connection identifier");
return NULL;
}
}
/* binary protocol isn't support over UDP yet */
if (udp_port && pool->protocol == &mmc_binary_protocol) {
php_error_docref(NULL, E_NOTICE, "binary protocol isn't support over UDP, defaulting to TCP");
udp_port = 0;
}
/* lazy initialization of server struct */
if (persistent && status) {