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ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...t for start of batch
$string = $receiver->recv ();
// Start our clock now
$tstart = microtime(true);
// Process 100 confirmations
$total_msec = 0; // Total calculated cost in msecs
for ($task_nbr = 0; $task_nbr < 100; $task_nbr++) {
$string = $receiver->recv ();
if($task_nbr % 10 == 0)...
Dealing with “java.lang.OutOfMemoryError: PermGen space” error
...classical example is Java.lang.OutOfMemoryError:PermGen Space in Tomcat.
Now there are two ways to solve this:
1. Find the cause of Memory Leak or if there is any memory leak.
2. Increase size of PermGen Space by using JVM param -XX:MaxPermSize and -XX:PermSize.
You can also check 2 Solution of J...
Where do “pure virtual function call” crashes come from?
...
They can result if you try to make a virtual function call from a constructor or destructor. Since you can't make a virtual function call from a constructor or destructor (the derived class object hasn't been constructed or has already been...
How to use Boost in Visual Studio 2010
...e Nate's answer is pretty good already, I'm going to expand on it more specifically for Visual Studio 2010 as requested, and include information on compiling in the various optional components which requires external libraries.
If you are using headers only libraries, then all you need to do is to ...
Coding in Other (Spoken) Languages
...tood well the question actually is: "does every single coder in the world know enough English to use the exact same reserved words as I do?"
Well.. English is not the subject here but programming language reserved words. I mean, when I started about 10 yrs ago, I didn't have any clue of English, a...
What is a CSRF token ? What is its importance and how does it work?
...se it is implied by your login.)
You visit www.cute-cat-pictures.org, not knowing that it is a malicious site.
If the owner of that site knows the form of the above request (easy!) and correctly guesses you are logged into mybank.com (requires some luck!), they could include on their page a request ...
Passing parameters to JavaScript files
...
I'd recommend not using global variables if possible. Use a namespace and OOP to pass your arguments through to an object.
This code belongs in file.js:
var MYLIBRARY = MYLIBRARY || (function(){
var _args = {}; // private
return {
init : function(...
C++中判断文件、目录是否存在的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...介绍几种方法。
首先关于判断文件的存在性：
一、ifstream
在C++中，可以利用ifstream文件输入流，当我们直接使用ifstream来创建文件输入流的时候，如果文件不存在则流创建失败。
ifstream fin("hello.txt");
if (!fin)
{
std::cout <...
Label Alignment in iOS 6 - UITextAlignment deprecated
...ctor. That it might break in the future is just bad design from Apple, and if they break it I would rather have compilation errors than risking that the alignment gets wrong without me noticing.
– Robin Andersson
Nov 14 '12 at 12:45
...
How can I change the color of pagination dots of UIPageControl?
...ed UIView that uses Core Graphics to render the dots in the colors you specify.
You use the exposed properties to customize and control it.
If you want to you can register a delegate object to get notifications when the user taps on one of the little page dots. If no delegate is registered then th...