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C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ Lock-free Hazard Pointer（冒险指针）hazard_pointer1 Safe Reclamation MethodsFolly 的 Hazard Pointer 实现中有一段注释，详细描述了 C++ 里几种主流的安全内存回收方法，列表如下：优点缺点场景Locking易用读高开销
1. Safe Reclamation Methods
Fo...
How to implement the Android ActionBar back button?
...ay all the activities you want can have the backpress.
Android, API 16+:
http://developer.android.com/training/implementing-navigation/ancestral.html
AndroidManifest.xml:
<application ... >
...
<!-- The main/home activity (it has no parent activity) -->
<activity
...
anchor jumping by using javascript
... //Go there directly or some transition
}
Demo: http://jsfiddle.net/DerekL/rEpPA/
Another one w/ transition: http://jsfiddle.net/DerekL/x3edvp4t/
You can also use .scrollIntoView:
document.getElementById(h).scrollIntoView(); //Even IE6 supports this
(Well I lied. It'...
How to start a background process in Python?
...ect in python? I'd like these processes not to die when the python scripts complete. I am sure it's related to the concept of a daemon somehow, but I couldn't find how to do this easily.
...
Converting JSON data to Java object
...
If, by any change, you are in an application which already uses http://restfb.com/ then you can do:
import com.restfb.json.JsonObject;
...
JsonObject json = new JsonObject(jsonString);
json.get("title");
etc.
...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
...ch will use the actual boolean type (and resolve to true and false) if the compiler supports it. (specifically, C++)
However, it would be better to check whether C++ is in use (via the __cplusplus macro) and actually use true and false.
In a C compiler, this is equivalent to 0 and 1.
(note that re...
Count character occurrences in a string in C++
How can I count the number of "_" in a string like "bla_bla_blabla_bla" ?
13 Answers
...
PATH issue with pytest 'ImportError: No module named YadaYadaYada'
I used easy_install to install pytest on a mac and started writing tests for a project with a file structure likes so:
20 A...
How do I add custom field to Python log format string?
... pass the extra info with every logging call:
import logging
extra = {'app_name':'Super App'}
logger = logging.getLogger(__name__)
syslog = logging.StreamHandler()
formatter = logging.Formatter('%(asctime)s %(app_name)s : %(message)s')
syslog.setFormatter(formatter)
logger.setLevel(logging.INFO)
l...
Calling Objective-C method from C++ member function?
...hat C++ class a objective-C function [context renderbufferStorage:GL_RENDERBUFFER fromDrawable:(CAEAGLLayer*)self.layer]; which I cannot do in C++ syntax.
...