取消redis/mysql的单例模式，更好的适配swoole

Author: hetao29

plugins/SRedis.php

@@ -22,29 +22,24 @@
 if(!defined("SLIGHTPHP_PLUGINS_DIR"))define("SLIGHTPHP_PLUGINS_DIR",dirname(__FILE__));
 require_once(SLIGHTPHP_PLUGINS_DIR."/SConfig.php");
 class SRedis{
-	private static $_config;
+	private static $hosts=array();
+	private static $options=array();
+	private static $_configFile;
 	/**
 	 * 当前使用的resouce
 	 */
-	private static $_resource;
-	/**
-	 *
-	 */
-	private static $_resources;
-	private static $_instances=array();
-
 	public function __construct(){
 	}
 
 	static function setConfigFile($file){
-		self::$_config = $file;
+		self::$_configFile = $file;
 	}
 	/**
 	 * @param string $zone
 	 * @return array
 	 */
 	static function getConfig($zone=null,$type="host"){
-		$config = SConfig::getConfig(self::$_config,$zone);
+		$config = SConfig::getConfig(self::$_configFile,$zone);
 		if(isset($config->$type)){
 			return $config->$type;
 		}elseif(isset($config->host)){
@@ -58,53 +53,41 @@ static function getConfig($zone=null,$type="host"){
 	 * @return array
 	 */
 	static function useConfig($zone,$type="host"){
-		$key = $zone.":".$type;
-		if(isset(self::$_instances[$key])){
-			return self::$_instances[$key];
-		}else{
-			self::$_instances[$key] = new self;
-		}
-		$hosts=array();
-		$options=array();
 		$config = self::getConfig($zone,$type);
 		if(empty($config)){
-			trigger_error("the redis hosts is not set in config file(".self::$_config.")");
+			trigger_error("the redis hosts is not set in config file(".self::$_configFile.")");
 			return false;
 		}
+		self::$hosts=[];
+		self::$options=[];
 		if(is_array($config)){
-			$hosts=$config;
+			self::$hosts=$config;
 		}else{
-			$hosts[]=$config;
+			self::$hosts[]=$config;
 		}
 		$config = self::getConfig($zone,"options");
 		if(!empty($config)){
 			if(is_object($config)){
 				foreach ($config as $k=>$v){
-					$options[$k]=$v;
+					self::$options[$k]=$v;
 				}
 			}
 		}
-		self::$_resource = self::$_resources[$key] = new RedisArray($hosts,$options);
-		return self::$_instances[$key];
 	}
 	public function __call($name,$args){
 		try{
-			if(self::$_resource) return call_user_func_array(array(self::$_resource,$name),$args);
+			$redis = new RedisArray(self::$hosts,self::$options);
+			return call_user_func_array(array($redis,$name),$args);
 		}catch(RedisException $e){
-			self::$_instances=null;
-			self::$_resources=null;
-			self::$_resource=null;
 			trigger_error($e);
 		}
 		return false;
 	}
 	public static function __callStatic($name,$args){
 		try{
-			if(self::$_resource) return call_user_func_array(array(self::$_resource,$name),$args);
+			$redis = new RedisArray(self::$hosts,self::$options);
+			return call_user_func_array(array($redis,$name),$args);
 		}catch(RedisException $e){
-			self::$_instances=null;
-			self::$_resources=null;
-			self::$_resource=null;
 			trigger_error($e);
 		}
 		return false;

plugins/db/Db.php

@@ -19,6 +19,8 @@
  * @subpackage SDb
  */
 namespace SlightPHP;
+require_once(SLIGHTPHP_PLUGINS_DIR."/db/DbPDO.php");
+require_once(SLIGHTPHP_PLUGINS_DIR."/db/DbMysqli.php");
 class Db{
 	/**
 	 * 
@@ -27,12 +29,12 @@ class Db{
 	private $params;
 	private $_engine_name="pdo_mysql";
 	private $_allow_engines=array(
-			"mysqli",
-			"pdo_mysql","pdo_sqlite","pdo_cubrid",
-			"pdo_dblib","pdo_firebird","pdo_ibm",
-			"pdo_informix","pdo_sqlsrv","pdo_oci",
-			"pdo_odbc","pdo_pgsql","pdo_4d"
-			);
+		"mysqli",
+		"pdo_mysql","pdo_sqlite","pdo_cubrid",
+		"pdo_dblib","pdo_firebird","pdo_ibm",
+		"pdo_informix","pdo_sqlsrv","pdo_oci",
+		"pdo_odbc","pdo_pgsql","pdo_4d"
+	);
 	private $_key;
 
 	/**
@@ -53,9 +55,8 @@ class Db{
 	 */
 	private $error=array('code'=>0,'msg'=>"");
 	/**
-	 * @var array $_globals
+	 *
 	 */
-	static $_globals;
 	function __construct($engineName="mysql"){
 		$this->__setEngine($engineName);
 	}
@@ -346,34 +347,24 @@ private function __query($sql, $retry=false){
 			trigger_error("{$this->_engine_name} ( $sql )");
 		}
 		//Connect
-		if(!isset(Db::$_globals[$this->_key])){
-			if(extension_loaded('pdo')){
-				require_once(SLIGHTPHP_PLUGINS_DIR."/db/DbPDO.php");
-				$this->engine = new \SlightPHP\DbPDO($this->params);
-			}elseif(extension_loaded('mysqli')){
-				require_once(SLIGHTPHP_PLUGINS_DIR."/db/DbMysqli.php");
-				$this->engine = new \SlightPHP\DbMysqli($this->params);
-			}else{
-				trigger_error("pdo and mysqli extension not exists",E_USER_ERROR);
-				unset(Db::$_globals[$this->_key]);
-				return false;
-			}
-			$this->engine->init($this->params);
-			if($this->engine->connect()===false){
-				$this->error['code']=$this->engine->errno();
-				$this->error['msg']=$this->engine->error();
-				if(defined("DEBUG")){
-					trigger_error("{$this->_engine_name} ( ".var_export($this->error,true).")");
-				}
-				unset(Db::$_globals[$this->_key]);
-				return false;
-			}else{
-				Db::$_globals[$this->_key] = $this->engine;
-			}
+		if(extension_loaded('pdo')){
+			$this->engine = new \SlightPHP\DbPDO($this->params);
+		}elseif(extension_loaded('mysqli')){
+			$this->engine = new \SlightPHP\DbMysqli($this->params);
 		}else{
-			$this->engine = Db::$_globals[$this->_key];
+			trigger_error("pdo and mysqli extension not exists",E_USER_ERROR);
+			return false;
 		}
-		
+		$this->engine->init($this->params);
+		if($this->engine->connect()===false){
+			$this->error['code']=$this->engine->errno();
+			$this->error['msg']=$this->engine->error();
+			if(defined("DEBUG")){
+				trigger_error("{$this->_engine_name} ( ".var_export($this->error,true).")");
+			}
+			return false;
+		}
+
 		$result = $this->engine->query($sql);
 
 		if($result){
@@ -389,7 +380,6 @@ private function __query($sql, $retry=false){
 		}
 		$this->error['code']=$this->engine->errno();
 		$this->error['msg']=$this->engine->error();
-		unset(Db::$_globals[$this->_key]);
 
 		if($retry===false && $this->engine->connectionError){
 			$this->_reInit();