系统组件 - ShareMemory

ShareMemory是为了解决多进程下进程数据隔离的问题。基于文件+锁的形式来实现。

方法列表

getInstance

用于获取一个ShareMemory实例。

use CoreComponentShareMemory;
$share = ShareMemory::getInstance();
//或者是
$share = ShareMemory::getInstance(ShareMemory::SERIALIZE_TYPE_SERIALIZE);

对数据的存储，EasySwoole默认选用json_encode的方式，若需要存储对象，请选SERIALIZE_TYPE_SERIALIZE。

set && get

$share->set("a",2);
$share->set('a',$share->get("a"));
var_dump($share->get("a"));
$share->set("b.c","aaaa");
echo $share->get("b.c");

startTransaction && commit && rollback

$share = CoreComponentShareMemory::getInstance(CoreComponentShareMemory::SERIALIZE_TYPE_SERIALIZE);
$share->startTransaction();
$share->set("a",2);
$share->set('a',$share->get("a"));
var_dump($share->get("a"));
$share->commit();
var_dump($share->get("a"));
$share->set("b.c","aaaa");
echo $share->get("b.c");

事务必须提交，否则会引起死锁。

$share->startTransaction();
$share->set("a",2);
$share->set('a',$share->get("a"));
$share->rollback();
var_dump($share->get("a"));
$share->commit();
var_dump($share->get("a"));
$share->set("b.c","aaaa");
echo $share->get("b.c");

clear

$share->clear();

注意，该操作会清除全部的数据。