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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...文件描述符）去定位具体的拓扑： /* Topology establishment */int s = zmq_socket (...);zmq_connect (s, "tcp://192.168.0.111:5555");/* Message routing */const char data [] = "ABC";zmq_send (s, data, sizeof (data), 0); 区分拓扑建立和消息路由严格地说不是不可缺少的。...
If Python is interpreted, what are .pyc files?
I've been given to understand that Python is an interpreted language...
However, when I look at my Python source code I see .pyc files, which Windows identifies as "Compiled Python Files".
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Optimizing away a “while(1);” in C++0x
...ll and the document refers to both WG14 and WG21:
As N1509 correctly points out, the current draft essentially gives
undefined behavior to infinite loops in 6.8.5p6. A major issue for
doing so is that it allows code to move across a potentially
non-terminating loop. For example, assume we ...
Is 'switch' faster than 'if'?
...ler worth its salt is going to see an if / else if ladder and transform it into equivalent switch or vice versa if it would be faster to do so.
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Using .NET, how can you find the mime type of a file based on the file signature not the extension
...one else and allow me to find it again if I need it.
using System.Runtime.InteropServices;
...
[DllImport(@"urlmon.dll", CharSet = CharSet.Auto)]
private extern static System.UInt32 FindMimeFromData(
System.UInt32 pBC,
[MarshalAs(UnmanagedType.LPStr)] System.String pwzUrl...
Git and Mercurial - Compare and Contrast
...erge by a series of two-parent merges, this might cause complications when converting between Mercurial and Git repositories.
As far as I know Mercurial doesn't have equivalent of annotated tags (tag objects) from Git. A special case of annotated tags are signed tags (with PGP / GPG signature); equi...
How do you Encrypt and Decrypt a PHP String?
...nked above make it easy and painless to implement authenticated encryption into your own libraries.
If you still want to write and deploy your own cryptography library, against the conventional wisdom of every cryptography expert on the Internet, these are the steps you would have to take.
Encryptio...
How to use WeakReference in Java and Android development?
...lems: WeakHashMap is not a cache!
Tom is right that there have been complaints about poor Netbeans performance due to WeakHashMap caching.
I still think it would be a good learning experience to implement a cache with WeakHashMap and then compare it against your own hand-rolled cache implemented...
Correct way to delete cookies server-side
...ntication process I create a unique token when a user logs in and put that into a cookie which is used for authentication.
...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...-programming where the only thing that lives on the stack are references/pointers to objects on the heap.
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