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redis_commands.c
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/* -*- Mode: C; tab-width: 4 -*- */
/*
+----------------------------------------------------------------------+
| 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Original Author: Michael Grunder <[email protected] |
| Maintainer: Nicolas Favre-Felix <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "redis_commands.h"
#include <zend_exceptions.h>
/* Generic commands based on method signature and what kind of things we're
* processing. Lots of Redis commands take something like key, value, or
* key, value long. Each unique signature like this is written only once */
/* A command that takes no arguments */
int redis_empty_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
*cmd_len = redis_cmd_format_static(cmd, kw, "");
return SUCCESS;
}
/* Helper to construct a raw command. Given that the cluster and non cluster
* versions are different (RedisCluster needs an additional argument to direct
* the command) we take the start of our array and count */
int redis_build_raw_cmd(zval *z_args, int argc, char **cmd, int *cmd_len TSRMLS_DC)
{
smart_string cmdstr = {0};
int i;
/* Make sure our first argument is a string */
if (Z_TYPE(z_args[0]) != IS_STRING) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"When sending a 'raw' command, the first argument must be a string!");
return FAILURE;
}
/* Initialize our command string */
redis_cmd_init_sstr(&cmdstr, argc-1, Z_STRVAL(z_args[0]), Z_STRLEN(z_args[0]));
for (i = 1; i < argc; i++) {
switch (Z_TYPE(z_args[i])) {
case IS_STRING:
redis_cmd_append_sstr(&cmdstr, Z_STRVAL(z_args[i]),
Z_STRLEN(z_args[i]));
break;
case IS_LONG:
redis_cmd_append_sstr_long(&cmdstr,Z_LVAL(z_args[i]));
break;
case IS_DOUBLE:
redis_cmd_append_sstr_dbl(&cmdstr,Z_DVAL(z_args[i]));
break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Raw command arguments must be scalar values!");
efree(cmdstr.c);
return FAILURE;
}
}
/* Push command and length to caller */
*cmd = cmdstr.c;
*cmd_len = cmdstr.len;
return SUCCESS;
}
/* Generic command where we just take a string and do nothing to it*/
int redis_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock, char *kw,
char **cmd, int *cmd_len, short *slot, void **ctx)
{
char *arg;
int arg_len;
// Parse args
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &arg, &arg_len)
==FAILURE)
{
return FAILURE;
}
// Build the command without molesting the string
*cmd_len = redis_cmd_format_static(cmd, kw, "s", arg, arg_len);
return SUCCESS;
}
/* Key, long, zval (serialized) */
int redis_key_long_val_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key = NULL, *val=NULL;
int key_len, val_len, val_free, key_free;
long expire;
zval *z_val;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "slz", &key, &key_len,
&expire, &z_val)==FAILURE)
{
return FAILURE;
}
// Serialize value, prefix key
val_free = redis_serialize(redis_sock, z_val, &val, &val_len TSRMLS_CC);
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct our command
*cmd_len = redis_cmd_format_static(cmd, kw, "sls", key, key_len, expire,
val, val_len);
// Set the slot if directed
CMD_SET_SLOT(slot,key,key_len);
if(val_free) STR_FREE(val);
if(key_free) efree(key);
return SUCCESS;
}
/* Generic key, long, string (unserialized) */
int redis_key_long_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *val;
int key_len, val_len, key_free;
long lval;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sls", &key, &key_len,
&lval, &val, &val_len)==FAILURE)
{
return FAILURE;
}
// Prefix our key if requested
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct command
*cmd_len = redis_cmd_format_static(cmd, kw, "sds", key, key_len, (int)lval,
val, val_len);
// Set slot
CMD_SET_SLOT(slot,key,key_len);
// Free our key if we prefixed
if(key_free) efree(key);
return SUCCESS;
}
/* Generic command construction when we just take a key and value */
int redis_kv_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *val;
int key_len, val_len, key_free, val_free;
zval *z_val;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz", &key, &key_len,
&z_val)==FAILURE)
{
return FAILURE;
}
val_free = redis_serialize(redis_sock, z_val, &val, &val_len TSRMLS_CC);
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct our command
*cmd_len = redis_cmd_format_static(cmd, kw, "ss", key, key_len, val,
val_len);
// Set our slot if directed
CMD_SET_SLOT(slot,key,key_len);
if(val_free) STR_FREE(val);
if(key_free) efree(key);
return SUCCESS;
}
/* Generic command that takes a key and an unserialized value */
int redis_key_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *val;
int key_len, val_len, key_free;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &key, &key_len,
&val, &val_len)==FAILURE)
{
return FAILURE;
}
// Prefix key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct command
*cmd_len = redis_cmd_format_static(cmd, kw, "ss", key, key_len, val,
val_len);
// Set slot if directed
CMD_SET_SLOT(slot,key,key_len);
if (key_free) efree(key);
return SUCCESS;
}
/* Key, string, string without serialization (ZCOUNT, ZREMRANGEBYSCORE) */
int redis_key_str_str_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *val1, *val2;
int key_len, val1_len, val2_len, key_free;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sss", &key, &key_len,
&val1, &val1_len, &val2, &val2_len)==FAILURE)
{
return FAILURE;
}
// Prefix key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct command
*cmd_len = redis_cmd_format_static(cmd, kw, "sss", key, key_len, val1,
val1_len, val2, val2_len);
// Set slot
CMD_SET_SLOT(slot,key,key_len);
// Free key if prefixed
if(key_free) efree(key);
// Success!
return SUCCESS;
}
/* Generic command that takes two keys */
int redis_key_key_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key1, *key2;
int key1_len, key2_len;
int key1_free, key2_free;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &key1, &key1_len,
&key2, &key2_len)==FAILURE)
{
return FAILURE;
}
// Prefix both keys
key1_free = redis_key_prefix(redis_sock, &key1, &key1_len);
key2_free = redis_key_prefix(redis_sock, &key2, &key2_len);
// If a slot is requested, we can test that they hash the same
if(slot) {
// Slots where these keys resolve
short slot1 = cluster_hash_key(key1, key1_len);
short slot2 = cluster_hash_key(key2, key2_len);
// Check if Redis would give us a CROSSLOT error
if(slot1 != slot2) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Keys don't hash to the same slot");
if(key1_free) efree(key1);
if(key2_free) efree(key2);
return FAILURE;
}
// They're both the same
*slot = slot1;
}
// Construct our command
*cmd_len = redis_cmd_format_static(cmd, kw, "ss", key1, key1_len, key2,
key2_len);
return SUCCESS;
}
/* Generic command construction where we take a key and a long */
int redis_key_long_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
int key_len, key_free;
long lval;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl", &key, &key_len,
&lval)==FAILURE)
{
return FAILURE;
}
// Prefix key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Disallow zero length keys (for now)
if(key_len == 0) {
if(key_free) efree(key);
return FAILURE;
}
// Construct our command
*cmd_len = redis_cmd_format_static(cmd, kw, "sl", key, key_len, lval);
// Set slot if directed
CMD_SET_SLOT(slot, key, key_len);
// Success!
return SUCCESS;
}
/* key, long, long */
int redis_key_long_long_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
int key_len, key_free;
long val1, val2;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sll", &key, &key_len,
&val1, &val2)==FAILURE)
{
return FAILURE;
}
// Prefix our key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct command
*cmd_len = redis_cmd_format_static(cmd, kw, "sll", key, key_len, val1,
val2);
// Set slot
CMD_SET_SLOT(slot,key,key_len);
if(key_free) efree(key);
return SUCCESS;
}
/* Generic command where we take a single key */
int redis_key_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
int key_len, key_free;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &key, &key_len)
==FAILURE)
{
return FAILURE;
}
// Prefix our key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct our command
*cmd_len = redis_cmd_format_static(cmd, kw, "s", key, key_len);
// Set slot if directed
CMD_SET_SLOT(slot,key,key_len);
if(key_free) efree(key);
return SUCCESS;
}
/* Generic command where we take a key and a double */
int redis_key_dbl_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key;
int key_len, key_free;
double val;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sd", &key, &key_len,
&val)==FAILURE)
{
return FAILURE;
}
// Prefix our key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Construct our command
*cmd_len = redis_cmd_format_static(cmd, kw, "sf", key, key_len, val);
// Set slot if directed
CMD_SET_SLOT(slot,key,key_len);
if(key_free) efree(key);
return SUCCESS;
}
/* Generic to construct SCAN and variant commands */
int redis_fmt_scan_cmd(char **cmd, REDIS_SCAN_TYPE type, char *key, int key_len,
long it, char *pat, int pat_len, long count)
{
static char *kw[] = {"SCAN","SSCAN","HSCAN","ZSCAN"};
int argc;
smart_string cmdstr = {0};
// Figure out our argument count
argc = 1 + (type!=TYPE_SCAN) + (pat_len>0?2:0) + (count>0?2:0);
redis_cmd_init_sstr(&cmdstr, argc, kw[type], strlen(kw[type]));
// Append our key if it's not a regular SCAN command
if(type != TYPE_SCAN) {
redis_cmd_append_sstr(&cmdstr, key, key_len);
}
// Append cursor
redis_cmd_append_sstr_long(&cmdstr, it);
// Append count if we've got one
if(count) {
redis_cmd_append_sstr(&cmdstr,"COUNT",sizeof("COUNT")-1);
redis_cmd_append_sstr_long(&cmdstr, count);
}
// Append pattern if we've got one
if(pat_len) {
redis_cmd_append_sstr(&cmdstr,"MATCH",sizeof("MATCH")-1);
redis_cmd_append_sstr(&cmdstr,pat,pat_len);
}
// Push command to the caller, return length
*cmd = cmdstr.c;
return cmdstr.len;
}
/* ZRANGE/ZREVRANGE */
int redis_zrange_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, int *withscores,
short *slot, void **ctx)
{
char *key;
int key_len, key_free;
long start, end;
zend_bool ws=0;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sll|b", &key, &key_len,
&start, &end, &ws)==FAILURE)
{
return FAILURE;
}
key_free = redis_key_prefix(redis_sock, &key, &key_len);
if(ws) {
*cmd_len = redis_cmd_format_static(cmd, kw, "sdds", key, key_len, start,
end, "WITHSCORES", sizeof("WITHSCORES")-1);
} else {
*cmd_len = redis_cmd_format_static(cmd, kw, "sdd", key, key_len, start,
end);
}
CMD_SET_SLOT(slot, key, key_len);
// Free key, push out WITHSCORES option
if(key_free) efree(key);
*withscores = ws;
return SUCCESS;
}
/* ZRANGEBYSCORE/ZREVRANGEBYSCORE */
#define IS_WITHSCORES_ARG(s, l) \
(l == sizeof("withscores") && !strncasecmp(s,"withscores",sizeof("withscores")))
#define IS_LIMIT_ARG(s, l) \
(l == sizeof("limit") && !strncasecmp(s,"limit",sizeof("limit")))
/* Helper to get the long value stored in a zval, whether it's actually stored
* as a long or is a string that contains a long */
static int zval_get_long(zval *zv, long *lval)
{
/* If it's already a long, just set and return success */
if (Z_TYPE_P(zv) == IS_LONG) {
*lval = Z_LVAL_P(zv);
return SUCCESS;
}
/* If our zval isn't a string, or doesn't translate into a long, fail */
if (Z_TYPE_P(zv) != IS_STRING || is_numeric_string(Z_STRVAL_P(zv), Z_STRLEN_P(zv), lval, NULL, 0) != IS_LONG) {
return FAILURE;
}
/* Success */
return SUCCESS;
}
int redis_zrangebyscore_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, int *withscores,
short *slot, void **ctx)
{
char *key;
int key_len, key_free;
char *start, *end, *optkey;
int start_len, end_len;
int has_limit=0, type;
long offset, count;
zval *z_opt=NULL, *z_ele;
unsigned long idx;
unsigned int optlen;
HashTable *ht_opt;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sss|a", &key, &key_len,
&start, &start_len, &end, &end_len, &z_opt)
==FAILURE)
{
return FAILURE;
}
// Check for an options array
if(z_opt && Z_TYPE_P(z_opt)==IS_ARRAY) {
ht_opt = Z_ARRVAL_P(z_opt);
for (zend_hash_internal_pointer_reset(ht_opt);
zend_hash_has_more_elements(ht_opt) == SUCCESS;
zend_hash_move_forward(ht_opt))
{
/* Grab current key and value */
type = zend_hash_get_current_key_ex(ht_opt, &optkey, &optlen, &idx, 0, NULL);
if ((z_ele = zend_hash_get_current_data(ht_opt)) == NULL) {
continue;
}
/* All options require a string key type */
if (type != HASH_KEY_IS_STRING) continue;
/* Check for withscores and limit */
if (IS_WITHSCORES_ARG(optkey, optlen)) {
*withscores = (Z_TYPE_P(z_ele) == IS_BOOL && Z_BVAL_P(z_ele) == 1);
} else if (IS_LIMIT_ARG(optkey, optlen) && Z_TYPE_P(z_ele) == IS_ARRAY) {
HashTable *htlimit = Z_ARRVAL_P(z_ele);
zval *zoff, *zcnt;
/* We need two arguments (offset and count) */
if ((zoff = zend_hash_index_find(htlimit, 0)) != NULL &&
(zcnt = zend_hash_index_find(htlimit, 1)) != NULL
) {
/* Set our limit if we can get valid longs from both args */
has_limit = zval_get_long(zoff, &offset) == SUCCESS &&
zval_get_long(zcnt, &count) == SUCCESS;
/* Inform the user there is a problem if we don't have a limit */
if (!has_limit) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset and limit must be long values. Ignoring.");
}
}
}
}
}
// Prefix our key, set slot
key_free = redis_key_prefix(redis_sock, &key, &key_len);
CMD_SET_SLOT(slot,key,key_len);
// Construct our command
if(*withscores) {
if(has_limit) {
*cmd_len = redis_cmd_format_static(cmd, kw, "ssssdds", key, key_len,
start, start_len, end, end_len, "LIMIT", 5, offset,
count, "WITHSCORES", 10);
} else {
*cmd_len = redis_cmd_format_static(cmd, kw, "ssss", key, key_len,
start, start_len, end, end_len, "WITHSCORES", 10);
}
} else {
if(has_limit) {
*cmd_len = redis_cmd_format_static(cmd, kw, "ssssdd", key, key_len,
start, start_len, end, end_len, "LIMIT", 5, offset, count);
} else {
*cmd_len = redis_cmd_format_static(cmd, kw, "sss", key, key_len,
start, start_len, end, end_len);
}
}
// Free our key if we prefixed
if(key_free) efree(key);
return SUCCESS;
}
/* ZUNIONSTORE, ZINTERSTORE */
int redis_zinter_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *agg_op=NULL;
int key_free, key_len;
zval *z_keys, *z_weights=NULL, *z_ele;
HashTable *ht_keys, *ht_weights=NULL;
smart_string cmdstr = {0};
int argc = 2, agg_op_len=0, keys_count;
// Parse args
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sa|a!s", &key,
&key_len, &z_keys, &z_weights, &agg_op,
&agg_op_len)==FAILURE)
{
return FAILURE;
}
// Grab our keys
ht_keys = Z_ARRVAL_P(z_keys);
// Nothing to do if there aren't any
if((keys_count = zend_hash_num_elements(ht_keys))==0) {
return FAILURE;
} else {
argc += keys_count;
}
// Handle WEIGHTS
if(z_weights != NULL) {
ht_weights = Z_ARRVAL_P(z_weights);
if(zend_hash_num_elements(ht_weights) != keys_count) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"WEIGHTS and keys array should be the same size!");
return FAILURE;
}
// "WEIGHTS" + key count
argc += keys_count + 1;
}
// AGGREGATE option
if(agg_op_len != 0) {
if(strncasecmp(agg_op, "SUM", sizeof("SUM")) &&
strncasecmp(agg_op, "MIN", sizeof("MIN")) &&
strncasecmp(agg_op, "MAX", sizeof("MAX")))
{
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Invalid AGGREGATE option provided!");
return FAILURE;
}
// "AGGREGATE" + type
argc += 2;
}
// Prefix key
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Start building our command
redis_cmd_init_sstr(&cmdstr, argc, kw, strlen(kw));
redis_cmd_append_sstr(&cmdstr, key, key_len);
redis_cmd_append_sstr_int(&cmdstr, keys_count);
// Set our slot, free the key if we prefixed it
CMD_SET_SLOT(slot,key,key_len);
if(key_free) efree(key);
// Process input keys
ZEND_HASH_FOREACH_VAL(ht_keys, z_ele) {
char *key;
int key_free, key_len;
zval *z_tmp = NULL;
if (Z_TYPE_P(z_ele) == IS_STRING) {
key = Z_STRVAL_P(z_ele);
key_len = Z_STRLEN_P(z_ele);
} else {
MAKE_STD_ZVAL(z_tmp);
*z_tmp = *z_ele;
convert_to_string(z_tmp);
key = Z_STRVAL_P(z_tmp);
key_len = Z_STRLEN_P(z_tmp);
}
// Prefix key if necissary
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// If we're in Cluster mode, verify the slot is the same
if(slot && *slot != cluster_hash_key(key,key_len)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"All keys don't hash to the same slot!");
efree(cmdstr.c);
if(key_free) efree(key);
if(z_tmp) {
zval_dtor(z_tmp);
efree(z_tmp);
}
return FAILURE;
}
// Append this input set
redis_cmd_append_sstr(&cmdstr, key, key_len);
// Cleanup
if(key_free) efree(key);
if(z_tmp) {
zval_dtor(z_tmp);
efree(z_tmp);
z_tmp = NULL;
}
} ZEND_HASH_FOREACH_END();
// Weights
if(ht_weights != NULL) {
redis_cmd_append_sstr(&cmdstr, "WEIGHTS", sizeof("WEIGHTS")-1);
// Process our weights
ZEND_HASH_FOREACH_VAL(ht_weights, z_ele) {
// Ignore non numeric args unless they're inf/-inf
if (Z_TYPE_P(z_ele) != IS_LONG && Z_TYPE_P(z_ele) != IS_DOUBLE &&
strncasecmp(Z_STRVAL_P(z_ele), "inf", sizeof("inf")) != 0 &&
strncasecmp(Z_STRVAL_P(z_ele), "-inf", sizeof("-inf")) != 0 &&
strncasecmp(Z_STRVAL_P(z_ele), "+inf", sizeof("+inf")) != 0
) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Weights must be numeric or '-inf','inf','+inf'");
efree(cmdstr.c);
return FAILURE;
}
switch (Z_TYPE_P(z_ele)) {
case IS_LONG:
redis_cmd_append_sstr_long(&cmdstr, Z_LVAL_P(z_ele));
break;
case IS_DOUBLE:
redis_cmd_append_sstr_dbl(&cmdstr, Z_DVAL_P(z_ele));
break;
case IS_STRING:
redis_cmd_append_sstr(&cmdstr, Z_STRVAL_P(z_ele),
Z_STRLEN_P(z_ele));
break;
}
} ZEND_HASH_FOREACH_END();
}
// AGGREGATE
if(agg_op_len != 0) {
redis_cmd_append_sstr(&cmdstr, "AGGREGATE", sizeof("AGGREGATE")-1);
redis_cmd_append_sstr(&cmdstr, agg_op, agg_op_len);
}
// Push out values
*cmd = cmdstr.c;
*cmd_len = cmdstr.len;
return SUCCESS;
}
/* SUBSCRIBE/PSUBSCRIBE */
int redis_subscribe_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
zval *z_arr, *z_chan;
HashTable *ht_chan;
smart_string cmdstr = {0};
subscribeContext *sctx = emalloc(sizeof(subscribeContext));
int key_len, key_free;
char *key;
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "af", &z_arr,
&(sctx->cb), &(sctx->cb_cache))==FAILURE)
{
efree(sctx);
return FAILURE;
}
ht_chan = Z_ARRVAL_P(z_arr);
sctx->kw = kw;
sctx->argc = zend_hash_num_elements(ht_chan);
if(sctx->argc==0) {
efree(sctx);
return FAILURE;
}
// Start command construction
redis_cmd_init_sstr(&cmdstr, sctx->argc, kw, strlen(kw));
// Iterate over channels
ZEND_HASH_FOREACH_VAL(ht_chan, z_chan) {
// We want to deal with strings here
convert_to_string(z_chan);
// Grab channel name, prefix if required
key = Z_STRVAL_P(z_chan);
key_len = Z_STRLEN_P(z_chan);
key_free = redis_key_prefix(redis_sock, &key, &key_len);
// Add this channel
redis_cmd_append_sstr(&cmdstr, key, key_len);
// Free our key if it was prefixed
if(key_free) efree(key);
} ZEND_HASH_FOREACH_END();
// Push values out
*cmd_len = cmdstr.len;
*cmd = cmdstr.c;
*ctx = (void*)sctx;
// Pick a slot at random
CMD_RAND_SLOT(slot);
return SUCCESS;
}
/* UNSUBSCRIBE/PUNSUBSCRIBE */
int redis_unsubscribe_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
zval *z_arr, *z_chan;
HashTable *ht_arr;
smart_string cmdstr = {0};
subscribeContext *sctx = emalloc(sizeof(subscribeContext));
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a", &z_arr)==FAILURE) {
efree(sctx);
return FAILURE;
}
ht_arr = Z_ARRVAL_P(z_arr);
sctx->argc = zend_hash_num_elements(ht_arr);
if(sctx->argc == 0) {
efree(sctx);
return FAILURE;
}
redis_cmd_init_sstr(&cmdstr, sctx->argc, kw, strlen(kw));
ZEND_HASH_FOREACH_VAL(ht_arr, z_chan) {
char *key = Z_STRVAL_P(z_chan);
int key_len = Z_STRLEN_P(z_chan), key_free;
key_free = redis_key_prefix(redis_sock, &key, &key_len);
redis_cmd_append_sstr(&cmdstr, key, key_len);
if(key_free) efree(key);
} ZEND_HASH_FOREACH_END();
// Push out vals
*cmd_len = cmdstr.len;
*cmd = cmdstr.c;
*ctx = (void*)sctx;
return SUCCESS;
}
/* ZRANGEBYLEX/ZREVRANGEBYLEX */
int redis_zrangebylex_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *min, *max;
int key_len, min_len, max_len, key_free;
long offset, count;
int argc = ZEND_NUM_ARGS();
/* We need either 3 or 5 arguments for this to be valid */
if(argc != 3 && argc != 5) {
php_error_docref(0 TSRMLS_CC, E_WARNING,
"Must pass either 3 or 5 arguments");
return FAILURE;
}
if(zend_parse_parameters(argc TSRMLS_CC, "sss|ll", &key,
&key_len, &min, &min_len, &max, &max_len,
&offset, &count)==FAILURE)
{
return FAILURE;
}
/* min and max must start with '(' or '[', or be either '-' or '+' */
if(min_len < 1 || max_len < 1 ||
(min[0] != '(' && min[0] != '[' &&
(min[0] != '-' || min_len > 1) && (min[0] != '+' || min_len > 1)) ||
(max[0] != '(' && max[0] != '[' &&
(max[0] != '-' || max_len > 1) && (max[0] != '+' || max_len > 1)))
{
php_error_docref(0 TSRMLS_CC, E_WARNING,
"min and max arguments must start with '[' or '('");
return FAILURE;
}
/* Prefix key */
key_free = redis_key_prefix(redis_sock, &key, &key_len);
/* Construct command */
if(argc == 3) {
*cmd_len = redis_cmd_format_static(cmd, kw, "sss", key, key_len, min,
min_len, max, max_len);
} else {
*cmd_len = redis_cmd_format_static(cmd, kw, "ssssll", key, key_len, min,
min_len, max, max_len, "LIMIT", sizeof("LIMIT")-1, offset, count);
}
/* Pick our slot */
CMD_SET_SLOT(slot,key,key_len);
/* Free key if we prefixed */
if(key_free) efree(key);
return SUCCESS;
}
/* ZLEXCOUNT/ZREMRANGEBYLEX */
int redis_gen_zlex_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
char *key, *min, *max;
int key_len, min_len, max_len, key_free;
/* Parse args */
if(zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sss", &key, &key_len,
&min, &min_len, &max, &max_len)==FAILURE)
{
return FAILURE;
}
/* Quick sanity check on min/max */
if(min_len<1 || max_len<1 || (min[0]!='(' && min[0]!='[') ||
(max[0]!='(' && max[0]!='['))
{
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Min and Max arguments must begin with '(' or '['");
return FAILURE;
}
/* Prefix key if we need to */
key_free = redis_key_prefix(redis_sock, &key, &key_len);
/* Construct command */
*cmd_len = redis_cmd_format_static(cmd, kw, "sss", key, key_len, min,
min_len, max, max_len);
/* set slot */
CMD_SET_SLOT(slot,key,key_len);
/* Free key if prefixed */
if(key_free) efree(key);
return SUCCESS;
}
/* Commands that take a key followed by a variable list of serializable
* values (RPUSH, LPUSH, SADD, SREM, etc...) */
int redis_key_varval_cmd(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
char *kw, char **cmd, int *cmd_len, short *slot,
void **ctx)
{
zval *z_args;
smart_string cmdstr = {0};
char *arg;
int arg_free, arg_len, i;
int argc = ZEND_NUM_ARGS();
// We at least need a key and one value
if(argc < 2) {
return FAILURE;
}
// Make sure we at least have a key, and we can get other args
z_args = emalloc(argc * sizeof(zval));
if (zend_get_parameters_array(ht, argc, z_args) == FAILURE) {
efree(z_args);
return FAILURE;
}
// Grab the first argument (our key) as a string