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What is difference between monolithic and micro kernel?
...pt separate and run in different address spaces. Servers invoke "services" from each other by sending messages via IPC (Interprocess Communication). This separation has the advantage that if one server fails, other servers can still work efficiently. Examples of microkernel based OSs: Mac OS X and W...
How to write log to file
...The safer permissions are 0644 or even 0664 to allow user read/write, user and group read/write, and in both cases disallow everyone write.
– Jonathan
Jun 10 '16 at 16:22
...
Get last n lines of a file, similar to tail
...] # blocks of size BLOCK_SIZE, in reverse order starting
# from the end of the file
while lines_to_go > 0 and block_end_byte > 0:
if (block_end_byte - BLOCK_SIZE > 0):
# read the last block we haven't yet read
f.seek(block_number*BLOCK_SIZ...
is vs typeof
.... In cases of T being class, typeof(T) is not reliable since its different from actual underlying type t.GetType.
In short, if you have an object instance, use GetType. If you have a generic class type, use is. If you have a generic struct type, use typeof(T). If you are unsure if generic type is ...
How can I search sub-folders using glob.glob module?
...s. You could use glob.iglob() to return paths one by one. Or use pathlib:
from pathlib import Path
path = Path(r'C:\Users\sam\Desktop')
txt_files_only_subdirs = path.glob('*/*.txt')
txt_files_all_recursively = path.rglob('*.txt') # including the current dir
Both methods return iterators (you can...
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
...
How can you tell from the command line? If you are running 32-bit or 64-bit? Just curious.
– Xonatron
Feb 2 '12 at 20:33
1...
Inspect element that only appear when other element is mouse overed/entered
...to the Elements panel and use the magnifying glass icon in the top left to select the tooltip
If the tooltip shows up because of CSS, here's what you can do in that case:
Step-by-step:
Open the DevTools
Select the triggering element in the dev tools (the link)
Right click, and select "force el...
import module from string variable
...ich I hope will automate document generation from future MPL releases.
I selected interested submodules/packages and want to list their main classes from which I'll generate list and process it with pydoc
...
Simulating tremor (from e.g. Parkinson's Disease) with the mouse on a webpage?
...ontained in app.js, in the canvasLoop(e) method.
The only thing I changed from the original demo was after the lines
x += movementX * 2;
y += movementY * 2;
I added two lines to represent random movement:
x += Math.floor(Math.random()*3 - 1);
y += Math.floor(Math.random()*3 - 1);
There are st...
filtering NSArray into a new NSArray in Objective-C
...y indexesOfObjectsPassingTest:] or write your own category to add a handy -select: or -filter: method (example).
Want somebody else to write that category, test it, etc.? Check out BlocksKit (array docs). And there are many more examples to be found by, say, searching for e.g. "nsarray block catego...