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Difference between binary semaphore and mutex
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They are NOT the same thing. They are used for different purposes!
While both types of semaphores have a full/empty state and use the same API, their usage is very different.
Mutual Exclusion Semaphores
Mutual Exclusion semaphores are used to protect shared resources (data structure...
How do I replace multiple spaces with a single space in C#?
... 30 persons just blindfold up-voted this answer :)
– 123iamking
Sep 8 '17 at 3:50
add a comme...
What is the use of GO in SQL Server Management Studio & Transact SQL?
...from employees;
GO -- GO 1
update employees set empID=21 where empCode=123;
GO -- GO 2
In the above example, statements before GO 1 will go to sql sever in a batch and then any other statements before GO 2 will go to sql server in another batch. So as we see it has separated batches.
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Is gettimeofday() guaranteed to be of microsecond resolution?
...that was originally written for the Win32 API, to Linux (well, porting the OS X port of the Win32 port to Linux).
10 Answer...
How to remove all breakpoints in one step in Google Chrome?
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123
Since recently (Chrome 18), you can right-click any breakpoint in the Breakpoints pane and voi...
How can I pretty-print JSON using Go?
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By pretty-print, I assume you mean indented, like so
{
"data": 1234
}
rather than
{"data":1234}
The easiest way to do this is with MarshalIndent, which will let you specify how you would like it indented via the indent argument. Thus, json.MarshalIndent(data, "", " ") will pretty...
What does “async: false” do in jQuery.ajax()?
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123
async:false = Code paused. (Other code waiting for this to finish.)
async:true = Code continu...
Cannot add or update a child row: a foreign key constraint fails
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123
It means that you're trying to insert into table2 a UserID value that doesn't exist in table1....
How do I add a path to PYTHONPATH in virtualenv
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I want to add a friendly comment that on shared hosts and similar situations venv wrapper is not desired. In such cases one venv is in effect and all that is needed making the additional install is not desired. Locally things are different, but on server/image KISS is reall...
Way to get all alphabetic chars in an array in PHP?
...118] => DO [119] => DP [120] => DQ [121] => DR [122] => DS [123] => DT [124] => DU )
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