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library.c
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library.c
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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "common.h"
#include "php_network.h"
#include <sys/types.h>
#ifndef _MSC_VER
#include <netinet/tcp.h> /* TCP_NODELAY */
#include <sys/socket.h>
#endif
#include <ext/standard/php_smart_str.h>
#include <ext/standard/php_var.h>
#ifdef HAVE_REDIS_IGBINARY
#include "igbinary/igbinary.h"
#endif
#include <zend_exceptions.h>
#include "php_redis.h"
#include "library.h"
#include "redis_commands.h"
#include <ext/standard/php_math.h>
#include <ext/standard/php_rand.h>
#define UNSERIALIZE_NONE 0
#define UNSERIALIZE_KEYS 1
#define UNSERIALIZE_VALS 2
#define UNSERIALIZE_ALL 3
#define SCORE_DECODE_NONE 0
#define SCORE_DECODE_INT 1
#define SCORE_DECODE_DOUBLE 2
#ifdef PHP_WIN32
# if PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION <= 4
/* This proto is available from 5.5 on only */
PHP_REDIS_API int usleep(unsigned int useconds);
# endif
#endif
extern zend_class_entry *redis_ce;
extern zend_class_entry *redis_exception_ce;
/* Helper to reselect the proper DB number when we reconnect */
static int reselect_db(RedisSock *redis_sock TSRMLS_DC) {
char *cmd, *response;
int cmd_len, response_len;
cmd_len = redis_cmd_format_static(&cmd, "SELECT", "d", redis_sock->dbNumber);
if (redis_sock_write(redis_sock, cmd, cmd_len TSRMLS_CC) < 0) {
efree(cmd);
return -1;
}
efree(cmd);
if ((response = redis_sock_read(redis_sock, &response_len TSRMLS_CC)) == NULL) {
return -1;
}
if (strncmp(response, "+OK", 3)) {
efree(response);
return -1;
}
efree(response);
return 0;
}
/* Helper to resend AUTH <password> in the case of a reconnect */
static int resend_auth(RedisSock *redis_sock TSRMLS_DC) {
char *cmd, *response;
int cmd_len, response_len;
cmd_len = redis_cmd_format_static(&cmd, "AUTH", "s", redis_sock->auth,
strlen(redis_sock->auth));
if (redis_sock_write(redis_sock, cmd, cmd_len TSRMLS_CC) < 0) {
efree(cmd);
return -1;
}
efree(cmd);
response = redis_sock_read(redis_sock, &response_len TSRMLS_CC);
if (response == NULL) {
return -1;
}
if (strncmp(response, "+OK", 3)) {
efree(response);
return -1;
}
efree(response);
return 0;
}
/* Helper function that will throw an exception for a small number of ERR codes
* returned by Redis. Typically we just return FALSE to the caller in the event
* of an ERROR reply, but for the following error types:
* 1) MASTERDOWN
* 2) AUTH
* 3) LOADING
*/
static void redis_error_throw(char *err, size_t err_len TSRMLS_DC) {
/* Handle stale data error (slave syncing with master) */
if (err_len == sizeof(REDIS_ERR_SYNC_MSG) - 1 &&
!memcmp(err,REDIS_ERR_SYNC_KW,sizeof(REDIS_ERR_SYNC_KW)-1))
{
zend_throw_exception(redis_exception_ce,
"SYNC with master in progress or master down!", 0 TSRMLS_CC);
} else if (err_len == sizeof(REDIS_ERR_LOADING_MSG) - 1 &&
!memcmp(err,REDIS_ERR_LOADING_KW,sizeof(REDIS_ERR_LOADING_KW)-1))
{
zend_throw_exception(redis_exception_ce,
"Redis is LOADING the dataset", 0 TSRMLS_CC);
} else if (err_len == sizeof(REDIS_ERR_AUTH_MSG) -1 &&
!memcmp(err,REDIS_ERR_AUTH_KW,sizeof(REDIS_ERR_AUTH_KW)-1))
{
zend_throw_exception(redis_exception_ce,
"Failed to AUTH connection", 0 TSRMLS_CC);
}
}
PHP_REDIS_API void redis_stream_close(RedisSock *redis_sock TSRMLS_DC) {
if (!redis_sock->persistent) {
php_stream_close(redis_sock->stream);
} else {
php_stream_pclose(redis_sock->stream);
}
}
PHP_REDIS_API int redis_check_eof(RedisSock *redis_sock, int no_throw TSRMLS_DC)
{
int eof;
int count = 0;
if (!redis_sock->stream) {
return -1;
}
/* NOITCE: set errno = 0 here
*
* There is a bug in php socket stream to check liveness of a connection:
* if (0 >= recv(sock->socket, &buf, sizeof(buf), MSG_PEEK) && php_socket_errno() != EWOULDBLOCK) {
* alive = 0;
* }
* If last errno is EWOULDBLOCK and recv returns 0 because of connection closed, alive would not be
* set to 0. However, the connection is close indeed. The php_stream_eof is not reliable. This will
* cause a "read error on connection" exception when use a closed persistent connection.
*
* We work around this by set errno = 0 first.
*
* Bug fix of php: https://github.com/php/php-src/pull/1456
* */
errno = 0;
eof = php_stream_eof(redis_sock->stream);
for (; eof; count++) {
if((MULTI == redis_sock->mode) || redis_sock->watching || count == 10) {
/* too many failures */
if(redis_sock->stream) { /* close stream if still here */
redis_stream_close(redis_sock TSRMLS_CC);
redis_sock->stream = NULL;
redis_sock->mode = ATOMIC;
redis_sock->status = REDIS_SOCK_STATUS_FAILED;
redis_sock->watching = 0;
}
if(!no_throw) {
zend_throw_exception(redis_exception_ce, "Connection lost",
0 TSRMLS_CC);
}
return -1;
}
if(redis_sock->stream) { /* close existing stream before reconnecting */
redis_stream_close(redis_sock TSRMLS_CC);
redis_sock->stream = NULL;
redis_sock->mode = ATOMIC;
redis_sock->watching = 0;
}
// Wait for a while before trying to reconnect
if (redis_sock->retry_interval) {
// Random factor to avoid having several (or many) concurrent connections trying to reconnect at the same time
long retry_interval = (count ? redis_sock->retry_interval : (php_rand(TSRMLS_C) % redis_sock->retry_interval));
usleep(retry_interval);
}
redis_sock_connect(redis_sock TSRMLS_CC); /* reconnect */
if(redis_sock->stream) { /* check for EOF again. */
errno = 0;
eof = php_stream_eof(redis_sock->stream);
}
}
/* We've connected if we have a count */
if (count) {
/* If we're using a password, attempt a reauthorization */
if (redis_sock->auth && resend_auth(redis_sock TSRMLS_CC) != 0) {
return -1;
}
/* If we're using a non-zero db, reselect it */
if (redis_sock->dbNumber && reselect_db(redis_sock TSRMLS_CC) != 0) {
return -1;
}
}
/* Success */
return 0;
}
PHP_REDIS_API int
redis_sock_read_scan_reply(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock,
REDIS_SCAN_TYPE type, long *iter)
{
REDIS_REPLY_TYPE reply_type;
long reply_info;
char *p_iter;
/* Our response should have two multibulk replies */
if(redis_read_reply_type(redis_sock, &reply_type, &reply_info TSRMLS_CC)<0
|| reply_type != TYPE_MULTIBULK || reply_info != 2)
{
return -1;
}
/* The BULK response iterator */
if(redis_read_reply_type(redis_sock, &reply_type, &reply_info TSRMLS_CC)<0
|| reply_type != TYPE_BULK)
{
return -1;
}
/* Attempt to read the iterator */
if(!(p_iter = redis_sock_read_bulk_reply(redis_sock, reply_info TSRMLS_CC))) {
return -1;
}
/* Push the iterator out to the caller */
*iter = atol(p_iter);
efree(p_iter);
/* Read our actual keys/members/etc differently depending on what kind of
scan command this is. They all come back in slightly different ways */
switch(type) {
case TYPE_SCAN:
return redis_mbulk_reply_raw(INTERNAL_FUNCTION_PARAM_PASSTHRU,
redis_sock, NULL, NULL);
case TYPE_SSCAN:
return redis_sock_read_multibulk_reply(
INTERNAL_FUNCTION_PARAM_PASSTHRU, redis_sock, NULL, NULL);
case TYPE_ZSCAN:
return redis_mbulk_reply_zipped_keys_dbl(INTERNAL_FUNCTION_PARAM_PASSTHRU,
redis_sock, NULL, NULL);
case TYPE_HSCAN:
return redis_mbulk_reply_zipped_vals(INTERNAL_FUNCTION_PARAM_PASSTHRU,
redis_sock, NULL, NULL);
default:
return -1;
}
}
PHP_REDIS_API int redis_subscribe_response(INTERNAL_FUNCTION_PARAMETERS,
RedisSock *redis_sock, zval *z_tab,
void *ctx)
{
subscribeContext *sctx = (subscribeContext*)ctx;
zval **z_tmp, *z_ret, **z_args[4];
// Consume response(s) from subscribe, which will vary on argc
while(sctx->argc--) {
z_tab = redis_sock_read_multibulk_reply_zval(
INTERNAL_FUNCTION_PARAM_PASSTHRU, redis_sock);
if(!z_tab) {
efree(sctx);
return -1;
}
// We'll need to find the command response
if(zend_hash_index_find(Z_ARRVAL_P(z_tab), 0, (void**)&z_tmp)
==FAILURE)
{
zval_dtor(z_tab);
efree(z_tab);
efree(sctx);
return -1;
}
// Make sure the command response matches the command we called
if(strcasecmp(Z_STRVAL_PP(z_tmp), sctx->kw) !=0) {
zval_dtor(z_tab);
efree(z_tab);
efree(sctx);
return -1;
}
zval_dtor(z_tab);
efree(z_tab);
}
sctx->cb.retval_ptr_ptr = &z_ret;
sctx->cb.params = z_args;
sctx->cb.no_separation = 0;
/* Multibulk response, {[pattern], type, channel, payload } */
while(1) {
zval **z_type, **z_chan, **z_pat, **z_data;
HashTable *ht_tab;
int tab_idx=1, is_pmsg;
z_tab = redis_sock_read_multibulk_reply_zval(
INTERNAL_FUNCTION_PARAM_PASSTHRU, redis_sock);
if(z_tab == NULL) break;
ht_tab = Z_ARRVAL_P(z_tab);
if(zend_hash_index_find(ht_tab, 0, (void**)&z_type)==FAILURE ||
Z_TYPE_PP(z_type) != IS_STRING)
{
break;
}
// Check for message or pmessage
if(!strncmp(Z_STRVAL_PP(z_type), "message", 7) ||
!strncmp(Z_STRVAL_PP(z_type), "pmessage", 8))
{
is_pmsg = *Z_STRVAL_PP(z_type)=='p';
} else {
break;
}
// Extract pattern if it's a pmessage
if(is_pmsg) {
if(zend_hash_index_find(ht_tab, tab_idx++, (void**)&z_pat)
==FAILURE)
{
break;
}
}
// Extract channel and data
if(zend_hash_index_find(ht_tab, tab_idx++, (void**)&z_chan)==FAILURE ||
zend_hash_index_find(ht_tab, tab_idx++, (void**)&z_data)==FAILURE)
{
break;
}
// Different args for SUBSCRIBE and PSUBSCRIBE
z_args[0] = &getThis();
if(is_pmsg) {
z_args[1] = z_pat;
z_args[2] = z_chan;
z_args[3] = z_data;
} else {
z_args[1] = z_chan;
z_args[2] = z_data;
}
// Set arg count
sctx->cb.param_count = tab_idx;
// Execute callback
if(zend_call_function(&(sctx->cb), &(sctx->cb_cache) TSRMLS_CC)
==FAILURE)
{
break;
}
// If we have a return value free it
if(z_ret) zval_ptr_dtor(&z_ret);
zval_dtor(z_tab);
efree(z_tab);
}
// This is an error state, clean up
if(z_tab) {
zval_dtor(z_tab);
efree(z_tab);
}
efree(sctx);
return -1;
}
PHP_REDIS_API int redis_unsubscribe_response(INTERNAL_FUNCTION_PARAMETERS,
RedisSock *redis_sock, zval *z_tab,
void *ctx)
{
subscribeContext *sctx = (subscribeContext*)ctx;
zval **z_chan, *z_ret;
int i=0;
MAKE_STD_ZVAL(z_ret);
array_init(z_ret);
while(i<sctx->argc) {
z_tab = redis_sock_read_multibulk_reply_zval(
INTERNAL_FUNCTION_PARAM_PASSTHRU, redis_sock);
if(!z_tab || zend_hash_index_find(Z_ARRVAL_P(z_tab), 1,
(void**)&z_chan)==FAILURE)
{
zval_dtor(z_ret);
efree(z_ret);
return -1;
}
add_assoc_bool(z_ret, Z_STRVAL_PP(z_chan), 1);
zval_dtor(z_tab);
efree(z_tab);
i++;
}
efree(sctx);
RETVAL_ZVAL(z_ret, 0, 1);
// Success
return 0;
}
PHP_REDIS_API zval *
redis_sock_read_multibulk_reply_zval(INTERNAL_FUNCTION_PARAMETERS,
RedisSock *redis_sock) {
char inbuf[1024];
int numElems;
zval *z_tab;
if(-1 == redis_check_eof(redis_sock, 0 TSRMLS_CC)) {
return NULL;
}
if(php_stream_gets(redis_sock->stream, inbuf, 1024) == NULL) {
redis_stream_close(redis_sock TSRMLS_CC);
redis_sock->stream = NULL;
redis_sock->status = REDIS_SOCK_STATUS_FAILED;
redis_sock->mode = ATOMIC;
redis_sock->watching = 0;
zend_throw_exception(redis_exception_ce,
"read error on connection", 0 TSRMLS_CC);
return NULL;
}
if(inbuf[0] != '*') {
return NULL;
}
numElems = atoi(inbuf+1);
MAKE_STD_ZVAL(z_tab);
array_init(z_tab);
redis_mbulk_reply_loop(INTERNAL_FUNCTION_PARAM_PASSTHRU, redis_sock, z_tab,
numElems, UNSERIALIZE_ALL);
return z_tab;
}
/**
* redis_sock_read_bulk_reply
*/
PHP_REDIS_API char *redis_sock_read_bulk_reply(RedisSock *redis_sock, int bytes TSRMLS_DC)
{
int offset = 0;
size_t got;
char *reply, c[2];
if (-1 == bytes || -1 == redis_check_eof(redis_sock, 0 TSRMLS_CC)) {
return NULL;
}
reply = emalloc(bytes+1);
while(offset < bytes) {
got = php_stream_read(redis_sock->stream, reply + offset,
bytes-offset);
if (got <= 0) {
/* Error or EOF */
zend_throw_exception(redis_exception_ce,
"socket error on read socket", 0 TSRMLS_CC);
break;
}
offset += got;
}
php_stream_read(redis_sock->stream, c, 2);
reply[bytes] = 0;
return reply;
}
/**
* redis_sock_read
*/
PHP_REDIS_API char *redis_sock_read(RedisSock *redis_sock, int *buf_len TSRMLS_DC)
{
char inbuf[1024];
char *resp = NULL;
size_t err_len;
if(-1 == redis_check_eof(redis_sock, 0 TSRMLS_CC)) {
return NULL;
}
if(php_stream_gets(redis_sock->stream, inbuf, 1024) == NULL) {
redis_stream_close(redis_sock TSRMLS_CC);
redis_sock->stream = NULL;
redis_sock->status = REDIS_SOCK_STATUS_FAILED;
redis_sock->mode = ATOMIC;
redis_sock->watching = 0;
zend_throw_exception(redis_exception_ce, "read error on connection",
0 TSRMLS_CC);
return NULL;
}
switch(inbuf[0]) {
case '-':
err_len = strlen(inbuf+1) - 2;
redis_sock_set_err(redis_sock, inbuf+1, err_len);
/* Filter our ERROR through the few that should actually throw */
redis_error_throw(inbuf + 1, err_len TSRMLS_CC);
/* Handle stale data error */
if(memcmp(inbuf + 1, "-ERR SYNC ", 10) == 0) {
zend_throw_exception(redis_exception_ce,
"SYNC with master in progress", 0 TSRMLS_CC);
}
return NULL;
case '$':
*buf_len = atoi(inbuf + 1);
resp = redis_sock_read_bulk_reply(redis_sock, *buf_len TSRMLS_CC);
return resp;
case '*':
/* For null multi-bulk replies (like timeouts from brpoplpush): */
if(memcmp(inbuf + 1, "-1", 2) == 0) {
return NULL;
}
/* fall through */
case '+':
case ':':
/* Single Line Reply */
/* :123\r\n */
*buf_len = strlen(inbuf) - 2;
if(*buf_len >= 2) {
resp = emalloc(1+*buf_len);
memcpy(resp, inbuf, *buf_len);
resp[*buf_len] = 0;
return resp;
}
default:
zend_throw_exception_ex(
redis_exception_ce,
0 TSRMLS_CC,
"protocol error, got '%c' as reply type byte\n",
inbuf[0]
);
}
return NULL;
}
void add_constant_long(zend_class_entry *ce, char *name, int value) {
zval *constval;
constval = pemalloc(sizeof(zval), 1);
INIT_PZVAL(constval);
ZVAL_LONG(constval, value);
zend_hash_add(&ce->constants_table, name, 1 + strlen(name),
(void*)&constval, sizeof(zval*), NULL);
}
int
integer_length(int i) {
int sz = 0;
int ci = abs(i);
while (ci > 0) {
ci /= 10;
sz++;
}
if (i == 0) { /* log 0 doesn't make sense. */
sz = 1;
} else if (i < 0) { /* allow for neg sign as well. */
sz++;
}
return sz;
}
int
redis_cmd_format_header(char **ret, char *keyword, int arg_count) {
/* Our return buffer */
smart_str buf = {0};
/* Keyword length */
int l = strlen(keyword);
smart_str_appendc(&buf, '*');
smart_str_append_long(&buf, arg_count + 1);
smart_str_appendl(&buf, _NL, sizeof(_NL) -1);
smart_str_appendc(&buf, '$');
smart_str_append_long(&buf, l);
smart_str_appendl(&buf, _NL, sizeof(_NL) -1);
smart_str_appendl(&buf, keyword, l);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
/* Set our return pointer */
*ret = buf.c;
/* Return the length */
return buf.len;
}
int
redis_cmd_format_static(char **ret, char *keyword, char *format, ...)
{
char *p = format;
va_list ap;
smart_str buf = {0};
int l = strlen(keyword);
char *dbl_str;
int dbl_len;
va_start(ap, format);
/* add header */
smart_str_appendc(&buf, '*');
smart_str_append_long(&buf, strlen(format) + 1);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
smart_str_appendc(&buf, '$');
smart_str_append_long(&buf, l);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
smart_str_appendl(&buf, keyword, l);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
while (*p) {
smart_str_appendc(&buf, '$');
switch(*p) {
case 's': {
char *val = va_arg(ap, char*);
int val_len = va_arg(ap, int);
smart_str_append_long(&buf, val_len);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
smart_str_appendl(&buf, val, val_len);
}
break;
case 'f':
case 'F': {
double d = va_arg(ap, double);
REDIS_DOUBLE_TO_STRING(dbl_str, dbl_len, d)
smart_str_append_long(&buf, dbl_len);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
smart_str_appendl(&buf, dbl_str, dbl_len);
efree(dbl_str);
}
break;
case 'i':
case 'd': {
int i = va_arg(ap, int);
char tmp[32];
int tmp_len = snprintf(tmp, sizeof(tmp), "%d", i);
smart_str_append_long(&buf, tmp_len);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
smart_str_appendl(&buf, tmp, tmp_len);
}
break;
case 'l':
case 'L': {
long l = va_arg(ap, long);
char tmp[32];
int tmp_len = snprintf(tmp, sizeof(tmp), "%ld", l);
smart_str_append_long(&buf, tmp_len);
smart_str_appendl(&buf, _NL, sizeof(_NL) -1);
smart_str_appendl(&buf, tmp, tmp_len);
}
break;
}
p++;
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
}
smart_str_0(&buf);
*ret = buf.c;
return buf.len;
}
/**
* This command behave somehow like printf, except that strings need 2
* arguments:
* Their data and their size (strlen).
* Supported formats are: %d, %i, %s, %l
*/
int
redis_cmd_format(char **ret, char *format, ...) {
smart_str buf = {0};
va_list ap;
char *p = format;
char *dbl_str;
int dbl_len;
va_start(ap, format);
while (*p) {
if (*p == '%') {
switch (*(++p)) {
case 's': {
char *tmp = va_arg(ap, char*);
int tmp_len = va_arg(ap, int);
smart_str_appendl(&buf, tmp, tmp_len);
}
break;
case 'F':
case 'f': {
double d = va_arg(ap, double);
REDIS_DOUBLE_TO_STRING(dbl_str, dbl_len, d)
smart_str_append_long(&buf, dbl_len);
smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
smart_str_appendl(&buf, dbl_str, dbl_len);
efree(dbl_str);
}
break;
case 'd':
case 'i': {
int i = va_arg(ap, int);
char tmp[32];
int tmp_len = snprintf(tmp, sizeof(tmp), "%d", i);
smart_str_appendl(&buf, tmp, tmp_len);
}
break;
}
} else {
smart_str_appendc(&buf, *p);
}
p++;
}
smart_str_0(&buf);
*ret = buf.c;
return buf.len;
}
/*
* Append a command sequence to a Redis command
*/
int redis_cmd_append_str(char **cmd, int cmd_len, char *append, int append_len) {
/* Smart string buffer */
smart_str buf = {0};
/* Append the current command to our smart_str */
smart_str_appendl(&buf, *cmd, cmd_len);
/* Append our new command sequence */
smart_str_appendc(&buf, '$');
smart_str_append_long(&buf, append_len);
smart_str_appendl(&buf, _NL, sizeof(_NL) -1);
smart_str_appendl(&buf, append, append_len);
smart_str_appendl(&buf, _NL, sizeof(_NL) -1);
/* Free our old command */
efree(*cmd);
/* Set our return pointer */
*cmd = buf.c;
/* Return new command length */
return buf.len;
}
/*
* Given a smart string, number of arguments, a keyword, and the length of the keyword
* initialize our smart string with the proper Redis header for the command to follow
*/
int redis_cmd_init_sstr(smart_str *str, int num_args, char *keyword, int keyword_len) {
smart_str_appendc(str, '*');
smart_str_append_long(str, num_args + 1);
smart_str_appendl(str, _NL, sizeof(_NL) -1);
smart_str_appendc(str, '$');
smart_str_append_long(str, keyword_len);
smart_str_appendl(str, _NL, sizeof(_NL) - 1);
smart_str_appendl(str, keyword, keyword_len);
smart_str_appendl(str, _NL, sizeof(_NL) - 1);
return str->len;
}
/*
* Append a command sequence to a smart_str
*/
int redis_cmd_append_sstr(smart_str *str, char *append, int append_len) {
smart_str_appendc(str, '$');
smart_str_append_long(str, append_len);
smart_str_appendl(str, _NL, sizeof(_NL) - 1);
smart_str_appendl(str, append, append_len);
smart_str_appendl(str, _NL, sizeof(_NL) - 1);
/* Return our new length */
return str->len;
}
/*
* Append an integer to a smart string command
*/
int redis_cmd_append_sstr_int(smart_str *str, int append) {
char int_buf[32];
int int_len = snprintf(int_buf, sizeof(int_buf), "%d", append);
return redis_cmd_append_sstr(str, int_buf, int_len);
}
/*
* Append a long to a smart string command
*/
int redis_cmd_append_sstr_long(smart_str *str, long append) {
char long_buf[32];
int long_len = snprintf(long_buf, sizeof(long_buf), "%ld", append);
return redis_cmd_append_sstr(str, long_buf, long_len);
}
/*
* Append a double to a smart string command
*/
int redis_cmd_append_sstr_dbl(smart_str *str, double value) {
char *dbl_str;
int dbl_len, retval;
/* Convert to double */
REDIS_DOUBLE_TO_STRING(dbl_str, dbl_len, value);
// Append the string
retval = redis_cmd_append_sstr(str, dbl_str, dbl_len);
/* Free our double string */
efree(dbl_str);
/* Return new length */
return retval;
}
/*
* Append an integer command to a Redis command
*/
int redis_cmd_append_int(char **cmd, int cmd_len, int append) {
char int_buf[32];
int int_len;
// Conver to an int, capture length
int_len = snprintf(int_buf, sizeof(int_buf), "%d", append);
/* Return the new length */
return redis_cmd_append_str(cmd, cmd_len, int_buf, int_len);
}
PHP_REDIS_API void redis_bulk_double_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock, zval *z_tab, void *ctx) {
char *response;
int response_len;
double ret;
if ((response = redis_sock_read(redis_sock, &response_len TSRMLS_CC)) == NULL) {
IF_MULTI_OR_PIPELINE() {
add_next_index_bool(z_tab, 0);
} else {
RETURN_FALSE;
}
return;
}
ret = atof(response);
efree(response);
IF_MULTI_OR_PIPELINE() {
add_next_index_double(z_tab, ret);
} else {
RETURN_DOUBLE(ret);
}
}
PHP_REDIS_API void redis_type_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock, zval *z_tab, void *ctx) {
char *response;
int response_len;
long l;
if ((response = redis_sock_read(redis_sock, &response_len TSRMLS_CC)) == NULL) {
IF_MULTI_OR_PIPELINE() {
add_next_index_bool(z_tab, 0);
} else {
RETURN_FALSE;
}
}
if (strncmp(response, "+string", 7) == 0) {
l = REDIS_STRING;
} else if (strncmp(response, "+set", 4) == 0){
l = REDIS_SET;
} else if (strncmp(response, "+list", 5) == 0){
l = REDIS_LIST;
} else if (strncmp(response, "+zset", 5) == 0){
l = REDIS_ZSET;
} else if (strncmp(response, "+hash", 5) == 0){
l = REDIS_HASH;
} else {
l = REDIS_NOT_FOUND;
}
efree(response);
IF_MULTI_OR_PIPELINE() {
add_next_index_long(z_tab, l);
} else {
RETURN_LONG(l);
}
}
PHP_REDIS_API void redis_info_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock, zval *z_tab, void *ctx) {
char *response;
int response_len;
zval *z_ret;
/* Read bulk response */
if ((response = redis_sock_read(redis_sock, &response_len TSRMLS_CC)) == NULL) {
RETURN_FALSE;
}
/* Parse it into a zval array */
z_ret = redis_parse_info_response(response);
/* Free source response */
efree(response);
IF_MULTI_OR_PIPELINE() {
add_next_index_zval(z_tab, z_ret);
} else {
RETVAL_ZVAL(z_ret, 0, 1);
}
}
PHP_REDIS_API zval *redis_parse_info_response(char *response) {
zval *z_ret;
char *key, *value, *p, *cur, *pos;
int is_numeric;
MAKE_STD_ZVAL(z_ret);
array_init(z_ret);
cur = response;
while(1) {
/* skip comments and empty lines */
if(*cur == '#' || *cur == '\r') {
if(!(cur = strchr(cur, '\n')))
break;
cur++;
continue;
}
/* key */
pos = strchr(cur, ':');
if(pos == NULL) {
break;
}
key = emalloc(pos - cur + 1);
memcpy(key, cur, pos-cur);
key[pos-cur] = 0;
/* value */
cur = pos + 1;
pos = strchr(cur, '\r');
if(pos == NULL) {
efree(key);
break;
}
value = emalloc(pos - cur + 1);
memcpy(value, cur, pos-cur);
value[pos-cur] = 0;
pos += 2; /* \r, \n */
cur = pos;
is_numeric = 1;
for(p = value; *p; ++p) {
if(*p < '0' || *p > '9') {
is_numeric = 0;
break;
}
}
if(is_numeric == 1) {
add_assoc_long(z_ret, key, atol(value));
efree(value);
} else {
add_assoc_string(z_ret, key, value, 0);
}
efree(key);
}
return z_ret;
}