大约有 40,800 项符合查询结果（耗时：0.0286秒） [XML]
What is the difference between mutex and critical section?
...ection takes ~50 ms for 1,000,000 acquires.
Here's the test code, I ran this and got similar results if mutex is first or second, so we aren't seeing any other effects.
HANDLE mutex = CreateMutex(NULL, FALSE, NULL);
CRITICAL_SECTION critSec;
InitializeCriticalSection(&critSec);
LARGE_INTEGER ...
AtomicInteger lazySet vs. set
What is the difference between the lazySet and set methods of AtomicInteger ? The documentation doesn't have much to say about lazySet :
...
What is the difference between parseInt(string) and Number(string) in JavaScript? [duplicate]
What is the difference between parseInt(string) and Number(string) in JavaScript?
6 Answers
...
Why is extending native objects a bad practice?
Every JS opinion leader says that extending the native objects is a bad practice. But why? Do we get a perfomance hit? Do they fear that somebody does it "the wrong way", and adds enumerable types to Object , practically destroying all loops on any object?
...
Pagination in a REST web application
This is a more generic reformulation of this question (with the elimination of the Rails specific parts)
13 Answers
...
Why does PHP consider 0 to be equal to a string?
...
You are doing == which sorts out the types for you.
0 is an int, so in this case it is going to cast 'e' to an int. Which is not parsable as one and will become 0. A string '0e' would become 0 and would match!
Use ===
...
What is the difference between partitioning and bucketing a table in Hive ?
I know both is performed on a column in the table but how is each operation different.
8 Answers
...
Is there some way to PUSH data from web server to browser?
Of course I am aware of Ajax, but the problem with Ajax is that the browser should poll the server frequently to find whether there is new data. This increases server load.
...
How to send password securely over HTTP?
If on a login screen user submits a form with his username and password, the password is sent in plain text (even with POST, correct me if I am wrong).
...
How do I get the directory that a program is running from?
Is there a platform-agnostic and filesystem-agnostic method to obtain the full path of the directory from where a program is running using C/C++? Not to be confused with the current working directory. (Please don't suggest libraries unless they're standard ones like clib or STL.)
...