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原子性

原子性的相关文献在1999年到2022年内共计103篇,主要集中在自动化技术、计算机技术、贸易经济、财政、金融 等领域,其中期刊论文56篇、会议论文5篇、专利文献448034篇;相关期刊38种,包括商场现代化、中国金融电脑、通化师范学院学报等; 相关会议5种,包括广西计算机学会2010年年会、信息系统协会中国分会第一届学术年会、首都信息网络发展学术研讨会等;原子性的相关文献由219位作者贡献,包括董荣胜、古天龙、郭云川等。

原子性—发文量

期刊论文>

论文:56 占比:0.01%

会议论文>

论文:5 占比:0.00%

专利文献>

论文:448034 占比:99.99%

总计:448095篇

原子性—发文趋势图

原子性

-研究学者

  • 董荣胜
  • 古天龙
  • 郭云川
  • A-R·阿德尔-塔巴塔拜
  • B·萨哈
  • C·王
  • T·史佩斯曼
  • 周龙骧
  • 徐宝文
  • 杨德礼
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 巩令钦; 沈莉; 周清雷; 胡浩
    • 摘要: 基于申威处理器,在底层虚拟机(Low Level Virtual Machine,LLVM)编译器后端对锁机制提供编译支持,保证多线程环境下,对共享内存操作的原子性.锁机制研究与实现主要包括实现原子指令语义映射策略保证原子操作的原子性并在锁机制算法中加入对8位和16位数据类型的数据处理,实现锁机制在申威处理器上对小粒度数据类型的支持.基于并行计算机基准测试集NPB进行测试,在多线程环境下所有程序皆自校验通过.在16个线程下,Fortran语言程序平均加速比为11.91,最大加速比为15.73,C语言程序平均加速比为8.08,最大加速比为13.32.
    • 秦臻; 管有庆
    • 摘要: 随着无线传感器网络的发展,其应用越来越广泛。为了提供可靠的服务质量并保证数据的一致性、有效性,这就需要无线传感器网络事务处理技术的研究。文中提出了一种适用于无线传感器网络的事务原子提交协议。此协议是对传统的2PC(Two Phase Commit,两阶段提交)协议的改进,为参与者提供了缓存机制,有效利用协调者的广播信息,降低能量消耗,在协调者和参与者中加入了定时器,定时器触发后会提供事务处理统一的出口(提交或撤销)。此外,还为协调者增加了心跳算法,提高了协议的可靠性。最后使用TOSSIM( TinyOS Simulator,TinyOS仿真器)进行实验,证明了其可行性。%With the development of wireless sensor networks,it is applied more widely. In order to provide reliable quality of service and ensure data consistency and validity,require study of wireless sensor network transaction processing technology. In this paper,present an atomic transaction commit protocol is suitable for wireless sensor networks. This protocol is the improvement of traditional 2PC ( Two Phase Commit) ,to provide participants with a caching mechanism for efficient use of radio coordinator information,reducing energy con-sumption,the coordinator and the participants joined the timer will provide a unified export transaction after the timer trigger ( committed or revoked) . Furthermore,increase the heart rate algorithms for coordinator to improve the reliability of the protocol. Finally,use TOSSIM ( TinyOS Simulator) to conduct experiments to prove its feasibility.
    • 周辉; 张向利; 张红梅
    • 摘要: For the security of the digital transactions in goods transport,business gets money but may not delivery or custom-er harvests but does not consider,the atomicity of electronic payment protocols is designed by using the ECDH key exchange algorithm.Customers and merchants together generate digital goods.The results show the protocols can effectively solve the problem that the seller does not deliver or not in conformity with the provisions of the goods and the buyer receives goods but denies in the electronic commerce.%针对数字交易中商家收钱不发货和顾客收货不承认等货物传输的安全性问题,设计一种基于 ECDH 密钥交换算法的电子支付协议原子性方案,通过客户和商家共同协商产生数字货物。结果表明,所提方案有效地解决了电子商务中有关数字交易卖方不发货、发货不符合规定和买方收货却抵赖不承认的问题。
    • 李海文; 南建国; 顾文灿; 黄雷; 魏赋
    • 摘要: 针对控制密集型嵌入式系统对软件实时性、安全性等要求高的特点,吸收现有构件模型优点,提出了控制密集型嵌入式系统软件构件模型-CIES模型;该模型引入了输入、输出控制接口,将数据传输的控制流与数据流分离;采用先进先出锁机制对临界区接口数据传输进行保护,保证了接口数据传输原子性及构件间交互的有序性,提高了系统可靠性与安全性;最后,给出实例的代码实现,并以汽车电子稳定控制系统为例,给出其CIES模型实现.
    • 胡敏; 陈雨亭
    • 摘要: 针对并发程序错误中涉及到的多变量原子性违例检测问题,提出一种动态检测算法.通过计算共享变量间的距离,推测变量之间的相关性,利用相关联的变量关系检测原子性违例错误,确定原子区域的挖掘方法.实验结果表明,该算法能有效挖掘程序中的相关变量,并检测程序中涉及到的多变量原子性违例错误.%This paper proposes a novel dynamic detection algorithm to detect multi-variable atomicity violation without consulting atomicity specification or annotation. It defines different dimensions of distances among shared memory, and uses the associated variable relationship to detect the atoms violation mistakes, then infers the correlations through them to get the atomic regions. Experimental results show that this algorithm can get the related variables, and test the procedure which involves atomic violations mistakes of multi-variable.
    • 肖仕成; 李开; 甘早斌
    • 摘要: Both the finite state model and the CTL (Computation Tree Logic) formulations were first constructed for the secure e-commerce payment protocol based on four parties (FSET) in this paper. Then, the symbolic model checking (SMV) was used to analyze and verify the atomicity of the FSET protocol. The result of analysis and verification indicates that the FSET can meet with the money atomicity, the goods atomicity and the certified delivery, as well as the electronic payment security requirements.%以基于四方的安全电子商务支付协议为研究对象,建立了协议的有限状态模型以及安全计算树逻辑CTL公式,利用符号模型检测工具SMV对协议的原子性进行检测验证.验证结果证明,基于四方的安全电子商务支付协议满足电子支付的金钱原子性、商品原子性以及确认发送原子性,协议符合电子支付的原子性安全要求.
    • 陈莉; 袁开银
    • 摘要: 针对典型电子支付协议存在的安全目标单一,不能满足日益提高的安全需求等问题,提出了一种能够满足认证性、密钥新鲜性、密钥秘密性、非否认性、公平性、可追究性和原子性等多种安全属性的复合型安全支付协议,该协议的认证子协议基于令牌概念设计,能够实现高效认证及会话密钥协商.通过引入公钥证书证明协议主体的身份、借助可信方传递付款收据以及采用FTP方式传送电子货币和付款收据等方式提出了支付子协议.使用逻辑分析方法对该协议进行严格逻辑推理验证,结果表明该协议能够满足多种安全属性.%In view of the existing problems of the payment protocols, e. g. security goal is single, increasing security requires are not been satisfied. This paper proposed a compound payment protocol, which satisfies a variety of security properties, such as authenticity, freshness of key, secrecy of key, non-repudiation, accountability, fairness and atomicity. The authentication sub-protocol of the new protocol can authenticate identities of the important entities in the foremost time, and the session keys used for transaction are negotiated efficiently. The payment sub-protocol is designed by using the following improvements. The first improvement is introducing certificates to prove the identities of the protocol entities. The second is transmitting the pay-ment receipts by the trusted party. The third is using FTP to transport electronic cashes and payment receipts. The new proto-col is proven to satisfy a variety of security properties by the logical analysis.
    • 陈冠诚
    • 摘要: 多线程编程中的原子操作非常重要,与多线程程序的正确性和性能息息相关。本文介绍了如何使用Java、C++1x等语言中直接提供的原子操作来很容易地实现对变量操作的原子性
    • 吴学光; 文艳军; 王戟; 傅秀涛; 綦艳霞; 顾斌
    • 摘要: In C programs with multiple interruptions, the interleaving of interruptions may cause some unexpected interleaving executions and even wrong execution results. A kind of frequently occurred error is that the atomicity of programs is violated because of data race. To solve this problem, this paper introduces the abstract execution semantics for C programs under multiple interruptions, gives an atomicity definition based on the access of shared variables, presents the data race and atomicity checking algorithms based on the atomicity definition, and adopts function abstraction technique to reduce the traversed state space. At last, it designs and implements a prototype checker named MIDAC (multiple interruption C program data race and atomicity checker), and the experimental results demonstrate its effectiveness on several practical programs.%在多重中断C程序中,中断嵌套可能会导致一些非期望的交叠执行,从而造成错误的程序执行结果.典型的问题是共享变量引起的数据竞争破坏了程序的原子性.针对此类问题,对多重中断C程序的运行时语义进行建模,根据共享变量的访问给出了一种原子性的定义,提出了相应的数据竞争及原子性检测方法,并采用函数摘要技术缩减静态分析过程中所需遍历的程序状态.最后,设计并实现了一个数据竞争及原子性检测原型工具MIDAC(multiple interruption C program data race and atomicity checker),实验结果表明,该工具能够针对一定规模的实际程序得到很好的检测效果.
    • 员亚利; 陈红梅
    • 摘要: Traditional workflow management systems lack the abilities of handling transactions, thus cannot recover quickly enough. This paper introduced a prototype of transactional workflow by adding failure mode in modeling. When a task failed, the system could invoke the transactional algorithm with loosed atomicity to assure the data consistence, as well as decrease the work of participants. The experimental result shows that the workflow management system with transaction charactors can recover efficiently after failure.%传统的工作流管理系统事务处理能力不足,使得系统在失败时不能尽快恢复流程的执行.实现事务工作流原型系统,通过扩充建模功能,在建模阶段指定失败处理模式,当任务执行失败时,系统自动调用事务处理算法保证工作流事务的放松的原子性及数据的一致性和正确性,减少人工参与决策的工作.实验表明,引入了事务处理功能的工作流系统具有任务执行失败后快速恢复的能力.
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