Scala并发编程

前言 ............................................................................................ xvii1 简介 ........................................................................................................... 1并发程序设计 .......................................................................................................... 1传统并发编程技术概述 ............................................................................. 2现代并发范式 .......................................................................................................... 3scala 的优点 ....................................................................... 4预备知识 ....................................................................................... 5执行scala 程序 ......................................................................... 5scala 基础知识 ................................................................................................ 6小结 ...................................................................................................... 11练习 ........................................................................................ 112 jvm 和java 内存模型中的并发处理方式 ................................................ 13进程和线程 ...................................................................... 14创建和启动线程 ....................................................16原子执行方式 .......................................................21调整次序 ..................................................................................................25监控器和同步 ............................................................................................... 27死锁 .....................................................................................................29保卫锁 ..........................................................................................................32中断线程和正常关闭 ...............................................................................................36volatile 变量 .................................................................................................. 37java 内存模型.............................................................................................. 39不可变对象和final 字段 .......................................................41小结 ............................................................. 43练习 ....................................................................................... 433 构建并发程序的传统材料 ............................................. 47executor 和executioncontext 对象 ................... 48原子型基元 ...................................................... 52原子变量 ............................................................................52无锁编程 ..........................................................55以明确方式实现锁 ...................................................................57aba 问题 .....................................................................59惰性值 .............................................................................. 61并发集合 ..................................................................... 66并发队列 ...............................................................................68并发集和映射 .....................................................71并发遍历 .............................................................77创建和处理进程 ...................................................... 79小结 ................................................................. 81练习 ................................................................... 814 使用future 和promise 对象编写异步程序 .............................................. 85future 类 ................................................................................. 86执行future 计算....................................................................88future 对象的回调函数 ..................................................89future 计算和异常 ...............................................92使用try 类型 .......................................93致命异常 ............................................95future 对象中的函数组合 ............................................................95promise 类 .................................................. 103转换基于回调函数的api ........................................................... 106扩展future api .................................................. 108取消异步计算操作 ..................................................................................... 109future 对象和阻塞操作 ................................................................... 112等待future 对象..................................................................................... 112在异步计算内部执行阻塞操作 ................................................................................... 113scala async 库 ...................................................................... 114可选的future 框架 .......................................................................................... 117小结 ........................................................................................................... 118练习 ....................................................................................................................... 1195 数据并行集合 ......................................................................................... 121scala 集合概述 ................................................................................................ 122并行集合的用法 ......................................................................................... 123并行集合类的层次结构 ....................................................................................... 126配置并行等级 ...................................................................................................... 128在jvm 中度量性能 ............................................................................. 129使用并行集合的注意事项 ................................................................................. 131非可并行化集合 .................................................................... 131非可并行化操作 .............................................................................................. 132并行操作的副作用 .................................................................................................... 134不确定的并行操作 .................................. 135可交换和可结合操作符 .............................................................. 137组合使用并行集合和并发集合 .................................................................... 139弱一致性迭代器 ........................................................ 140实现自定义的并行集合 ............................................................................... 141分离器 ................................................................................................ 142组合器 ..................................................................................................... 145可选的数据并行框架 ................................................................. 148scalablitz 框架中的集合层次结构 .............................................................. 149小结 ....................................................................................................... 150练习 ............................................................................................. 1516 使用reactive extensions 编写并发程序 ............................................... 153创建observable 对象 ............................................................... 154observable 对象和异常 ................................................................ 157observable 协定 ................................................................................ 158实现自定义observable 对象 ...................................................................................... 160通过future 对象创建observable 对象 ............................................................ 161sub******ion 对象 ............................................................................................ 162组合observable 对象 ...................................................................................... 165嵌套的observable 对象 ....................................................................................... 166处理完善observable 对象失败的情况 .................................................................. 171rx 调度器 ............................................................................... 174使用自定义调度器编写ui 应用程序 .................................................................. 176subject 特征和自顶向下的响应式编程 .................................................. 181小结 ............................................................................................ 186练习 ..................................................................................... 1867 基于软件的事务内存 .............................................................................. 189原子变量带来的麻烦 ...................................................................... 190使用基于软件的事务内存 .............................................. 194事务引用 ......................................................... 196使用atomic 语句 ................................................................ 197组合事务 .............................................................. 198事务与副作用 ................................................................. 199单操作事务 ................................................................. 203嵌套事务 ........................................................... 205事务和异常 ...................................................... 208重新尝试执行事务 ........................................ 212通过超时设置重新尝试执行事务 ......................................... 216事务集合 ..................................................................................... 217事务局部变量 ................................................................. 218事务数组 ......................................................... 219事务映射 .............................................................................. 221小结 ............................................................................................. 222练习 ............................................................................. 2238 actor ...................................................................................................... 227使用actor 模型 ............................................................................... 228创建actor 系统和actor 实例 ..................................................................... 230管理无法正常处理的消息 .................................................................................. 233actor 实例的行为和状态 ........................................................................................ 234akka 框架中的actor 层次结构.................................................................................. 239识别actor 对象 ............................................................................................... 242actor 对象的生命周期 ................................................................................... 245actor 对象之间的通信 ...................................................... 249请求模式 ........................................................ 251转发模式 ..................................................................... 254停止actor 对象 ......................................................................... 255actor 监督 .......................................................................... 257远程actor 对象 ............................................................. 263小结 .............................................................................................. 266练习 ................................................................................................... 2679 实用并发技术 ......................................................................................... 269工欲善其事，必先利其器 ....................................................... 269组合使用多种框架——编写远程文件管理器 ............................................ 273创建文件系统模型 ........................................................ 274服务器接口 ......................................................................... 278客户端导航api.................................................................................. 280客户端的用户界面 ............................................................................. 284实现客户端程序的逻辑 .................................................................................. 288改进远程文件管理器 ........................................................................................ 293调试并发程序 ................................................................................................................... 294死锁和暂停处理过程 ............................................................... 295调试运行结果不正确的程序 ................................................................ 299性能调试 ............................................................................... 304小结 .............................................................................................................................. 310练习 .................................................................................................................................. 311