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redis.c
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redis.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: wanghouqian <whq654321@126.com> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "redis.h"
#include "ext/standard/php_smart_str.h"
/* {{{ zval * parse_redis_response(php_stream *stream TSRMLS_DC)
*/
zval * parse_redis_response(php_stream *stream TSRMLS_DC)
{
char buffer[1024] = { 0 };
php_stream_gets(stream, buffer, 1024);
zval *retval = NULL;
MAKE_STD_ZVAL(retval);
switch (buffer[0]){
case '+':
ZVAL_TRUE(retval);
break;
case '-':
ZVAL_FALSE(retval);
break;
case ':':
ZVAL_STRING(retval, buffer, 1);
break;
case '$':
if (buffer[1] == '-' && buffer[2] == '1'){
ZVAL_NULL(retval);
}
else{
int length = atoi(buffer + 1) + 2;
int readLen = 0;
smart_str data = { 0 };
do{
buffer[0] = '\0';
php_stream_gets(stream, buffer, 1024);
readLen = strlen(buffer);
smart_str_appendl(&data, buffer, readLen);
length -= readLen;
} while (length > 0);
if (data.len > 0){
smart_str_0(&data);
ZVAL_STRINGL(retval, data.c, data.len - 2, 0);
}
}
break;
case '*':
array_init(retval);
int lines = atoi(buffer + 1);
int i;
for (i = 0; i < lines; i++){
add_next_index_zval(retval, parse_redis_response(stream TSRMLS_CC));
}
break;
default:
ZVAL_FALSE(retval);
break;
}
return retval;
}
/* }}}*/
/* {{{ int parse_redis_response_discard_result(php_stream *stream TSRMLS_DC)
*/
int parse_redis_response_discard_result(php_stream *stream TSRMLS_DC)
{
char buffer[1024] = { 0 };
php_stream_gets(stream, buffer, 1024);
int flag = FAILURE;
switch (buffer[0]){
case '+':
case '-':
case ':':
flag = SUCCESS;
break;
case '$':
if (buffer[1] == '-' && buffer[2] == '1'){
flag = FAILURE;
}
else{
int length = atoi(buffer + 1) + 2;
int readLen = 0;
do{
buffer[0] = '\0';
php_stream_gets(stream, buffer, 1024);
readLen = strlen(buffer);
length -= readLen;
} while (length > 0);
flag = SUCCESS;
}
break;
case '*' :
flag = SUCCESS;
int lines = atoi(buffer + 1);
int i;
for (i = 0; i < lines; i++){
parse_redis_response_discard_result(stream TSRMLS_CC);
}
break;
default:
flag = FAILURE;
break;
}
return flag;
}
/* }}}*/
/* {{{ int build_redis_command(char **ret,char *keywokd,int keyword_len,char *format,...)
*/
int build_redis_command(char **ret,char *keywokd,int keyword_len,char *format,...)
{
smart_str command = { 0 };
char *p = format;
va_list ap;
if (ret == NULL || keywokd == NULL || format == NULL){
return 0;
}
va_start(ap, format);
smart_str_appendc(&command, '*');
smart_str_append_long(&command, (long)strlen(format) + 1);
smart_str_appendl(&command, REDIS_END_LINE, REDIS_END_LINE_LENGTH);
smart_str_appendc(&command, '$');
smart_str_append_long(&command, keyword_len);
smart_str_appendl(&command, REDIS_END_LINE, REDIS_END_LINE_LENGTH);
smart_str_appends(&command, keywokd);
smart_str_appendl(&command, REDIS_END_LINE, REDIS_END_LINE_LENGTH);
while (*p){
smart_str_appendc(&command, '$');
switch (*p){
case 's':{
char *str = va_arg(ap, char *);
int str_len = va_arg(ap, int);
smart_str_append_long(&command, str_len);
smart_str_appendl(&command, REDIS_END_LINE, REDIS_END_LINE_LENGTH);
smart_str_appendl(&command, str, str_len);
}
break;
case 'i':
case 'd': {
int i = va_arg(ap, int);
char tmp[32] = { 0 };
int tmp_len = snprintf(tmp, sizeof(tmp), "%d", i);
smart_str_append_long(&command, tmp_len);
smart_str_appendl(&command, REDIS_END_LINE, REDIS_END_LINE_LENGTH);
smart_str_appendl(&command, 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(&command, tmp_len);
smart_str_appendl(&command, REDIS_END_LINE, REDIS_END_LINE_LENGTH);
smart_str_appendl(&command, tmp, tmp_len);
}
break;
}
p++;
smart_str_appendl(&command, REDIS_END_LINE, REDIS_END_LINE_LENGTH);
}
smart_str_0(&command);
*ret = command.c;
return command.len;
}
/* }}}*/
/* {{{ int execute_redis_command(php_stream *stream, zval **ret, char *command, int command_len TSRMLS_DC)
*/
int execute_redis_command(php_stream *stream, zval **ret, char *command, int command_len TSRMLS_DC)
{
if (stream == NULL || command == NULL || command_len < 1){
return FAILURE;
}
if (php_stream_write(stream, command, command_len)<0){
efree(command);
return FAILURE;
}
if (ret != NULL){
*ret = parse_redis_response(stream TSRMLS_CC);
}
else{
parse_redis_response_discard_result(stream TSRMLS_CC);
}
efree(command);
return SUCCESS;
}
/* }}}*/