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C++ Singleton design pattern
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What irks me most though is the run-time check of the hidden boolean in getInstance() That is an assumption on implementation technique. There need be no assumptions about it being alive. see stackoverflow.com/a/335746/14065 You can force ...
How to convert OutputStream to InputStream?
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An OutputStream is one where you write data to. If some module exposes an OutputStream, the expectation is that there is something reading at the other end.
Something that exposes an InputStream, on the other hand, is indicating that you will need to listen to this stream, and there will b...
Multiprocessing - Pipe vs Queue
... want to spawn two processes and send messages between them as quickly as possible. These are the timing results of a drag race between similar tests using Pipe() and Queue()... This is on a ThinkpadT61 running Ubuntu 11.10, and Python 2.7.2.
FYI, I threw in results for JoinableQueue() as a bonus;...
Escape double quotes in parameter
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Windows: the OS where globbing, shell expansion, and parameter unescaping is performed by the executable being invoked instead of the shell. You never know which convention, if any, the invoked executable honours.
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...通信系统不同，几乎没有分布式通信系统的什么资料，ØMQ(ZeroMQ)是感兴趣的读者少数能请举出... 介绍 与其他的基于常规理论基础的（集中）通信系统不同，几乎没有分布式通信系统的什么资料，ØMQ(ZeroMQ)是感兴趣的读...
Difference between /res and /assets directories
...ere's built-in support for providing alternatives for different languages, OS versions, screen orientations, etc., as described here. None of that is available with assets. Also, many parts of the API support the use of resource identifiers. Finally, the names of the resources are turned into consta...
Client-server synchronization pattern / algorithm?
...at how distributed change management works. Look at SVN, CVS and other repositories that manage deltas work.
You have several use cases.
Synchronize changes. Your change-log (or delta history) approach looks good for this. Clients send their deltas to the server; server consolidates and distri...
How many threads is too many?
... into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
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How Python web frameworks, WSGI and CGI fit together
I have a Bluehost account where I can run Python scripts as CGI. I guess it's the simplest CGI, because to run I have to define the following in .htaccess :
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How to deal with a slow SecureRandom generator?
... the stream to be repeatable in future using the same seed for testing purposes, an insecure seed is still useful.
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