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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...mits etc.
Seccomp is going to be a bit difficult, as the code cannot even allocate memory.
Selinux is the other option, but I think it might be more work than a container.
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Calendar Recurring/Repeating Events - Best Storage Method
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Storing "Simple" Repeating Patterns
For my PHP/MySQL based calendar, I wanted to store repeating/recurring event information as efficiently as possibly. I didn't want to have a large number of rows, and I wanted to easily lookup all events that would take place on a s...
Displaying the build date
...d(buffer, 0, buffer.Length);
}
var pinnedBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned);
try
{
var coffHeader = (_IMAGE_FILE_HEADER)Marshal.PtrToStructure(pinnedBuffer.AddrOfPinnedObject(), typeof(_IMAGE_FILE_HEADER));
return TimeZone.Cu...
What is uintptr_t data type
...
To allocate aligned memory, among other uses, for instance?
– legends2k
Jul 21 '15 at 7:36
4
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Why do you need to invoke an anonymous function on the same line?
...
The function(){ alert("plop"); } instruction just allocates the function but does not execute it nor binds it to a variable. Since the created function is not bound to any variable, it will be quickly GCed.
– Vincent Robert
Jul 17 '09 a...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
... abstraction layer will be way smaller, then mongoose's.
I'm coming from PHP world, there we had raw sql with depreciated mysql_ functions, then we got PDO - object orientated abstraction layer to communicate with sql. Or you can choose some heavy ORM like Doctrine to have similar stuff to mongoos...
How do I design a class in Python?
...l methods.
Go through the adjectives, looking for potential attributes
Allocate methods and attributes to your classes
To refine the class, the book also advises we can do the following:
Write down (or dream up) a set of use cases—scenarios of how your program may be used. Try to c...
What happens to a detached thread when main() exits?
...rom the thread object, allowing
execution to continue independently. Any allocated resources will be
freed once the thread exits.
From pthread_detach:
The pthread_detach() function shall indicate to the implementation
that storage for the thread can be reclaimed when that thread
termin...
How do I vertically center UITextField Text?
...nt. So he will have something like UITextField *textField = [[UITextField alloc] init];. If you use a different variable name (anything other than textField after the *), you need to do yourDifferentVariableNameHere.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter instead.
...
Working with Enums in android
...tes of RAM overhead.
Putting a single entry into a HashMap requires the allocation of an
additional
entry object that takes 32 bytes (see the previous section about
optimized data containers).
A few bytes here and there quickly add
up—app designs that are class- or object-heavy ...