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Thread Safe(线程安全)和None Thread Safe(NTS,非线程安全)之分 如果disabled就选择nts(php_stomp-1.0.9-5.5-nts-vc11-x86.zip) Thread Safety disabled…
fs2在处理异常及资源使用安全方面也有比较大的改善.fs2 Stream可以有几种方式自行引发异常:直接以函数式方式用fail来引发异常.在纯代码里隐式引发异常或者在运算中引发异常,举例如下: /函数式 val err = Stream(,,) ++ Stream.fail(new Exception("oh,no...")) //> err : fs2.Stream[Nothing,Int] = append(Segment(Emit(Chunk(1, 2, 3))), S…
scalaz-stream是一个数据流处理工具库,对资源使用,包括:开启文件.连接网络.连接数据库等这些公共资源使用方面都必须确定使用过程的安全:要保证在作业终止时能进行事后处理程序(finalizer)来释放相关的文件.网络链接.数据库连接等.所谓作业终止包括正常的作业完成(End).人工强行终止(Kill)及出现异常中断(Exception).scalaz-stream并且保证了无论在数据产生的上游Source或者消费数据的下游Process都能在作业终止时运行上游Source的finali…
C. Journey time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Recently Irina arrived to one of the most famous cities of Berland — the Berlatov city. There are n showplaces in the city, numbe…
A Knight's Journey Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 41936   Accepted: 14269 Description Background The knight is getting bored of seeing the same black and white squares again and again and has decided to make a journey ar…
1.CF #374 (Div. 2)    C.  Journey 2.总结:好题,这一道题,WA,MLE,TLE,RE,各种姿势都来了一遍.. 3.题意:有向无环图,找出第1个点到第n个点的一条路径,经过的点数要最多. #include<bits/stdc++.h> #define F(i,a,b) for (int i=a;i<b;i++) #define FF(i,a,b) for (int i=a;i<=b;i++) #define mes(a,b) memset(a,b,…
Principle The presence of the synchronized modifier in a method declaration is an implementation detail, not a part of its exported API. To enable safe concurrent use, a class must clearly document what level of thread safety it supports. Immutable •…
Writing thread-safe code is managing access to state and in particular to shared, mutable state. Object's state is its data, stored in state variables such as instance or static fields. Whether an object needs to be thread-safe depends on whether it…
题目链接:http://poj.org/problem?id=2488 A Knight's Journey Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 36695   Accepted: 12462 Description Background The knight is getting bored of seeing the same black and white squares again and again…
题目链接: C. Journey time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Recently Irina arrived to one of the most famous cities of Berland — the Berlatov city. There are n showplaces in the city,…