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Creating a daemon in Linux
...ssed file descriptor stays around in the daemon process. On Linux, this is best implemented by iterating through /proc/self/fd, with a fallback of iterating from file descriptor 3 to the value returned by getrlimit() for RLIMIT_NOFILE.
Reset all signal handlers to their default. This is best done ...
Cross cutting concern example
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I think the single best example of a cross-cutting concern is transactional behavior. Having to put try-catch blocks with commit and rollback calls in all your service methods would be repellent, for instance. Annotating the methods with a mark...
Foreign Key to non-primary key
...ey just because it semantically has more importance and describes my model best. I too would like to have a foreign key reference a newly created surrogate key for the sake of performance (as noted above). Does anyone foresee any problems with such a setup?
– Daniel Macias
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Difference between DateTime and Time in Ruby
... necessarily need to be concerned. Picking one for consistency is probably best, so try and mesh with what your libraries expect. For example, ActiveRecord prefers DateTime.
In versions prior to Ruby 1.9 and on many systems Time is represented as a 32-bit signed value describing the number of secon...
How to create a MySQL hierarchical recursive query
...his syntax or you can migrate to one that does, then that is certainly the best option to go for. If not, then also consider the following alternatives.
Alternative 2: Path-style Identifiers
Things become a lot easier if you would assign id values that contain the hierarchical information: a path....
The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
...has a convoluted name (or both). In many other cases it just does no harm. Best case, it hides an irrelevant detail. This does increase readability quite substantially.
– Konrad Rudolph
Aug 1 '11 at 18:03
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Adding gif image in an ImageView in android
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This answer is the best answer and it works very smooth for me, I tried different thing and build classes and unbelievable after I found this.... Thanks mister ;)
– Alexiscanny
Feb 16 '16 at 10:59
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Change one value based on another value in pandas
...nment. The behavior of this is less stable and so it is not considered the best solution (it is explicitly discouraged in the docs), but it is useful to know about:
import pandas
df = pandas.read_csv("test.csv")
df['FirstName'][df.ID == 103] = "Matt"
df['LastName'][df.ID == 103] = "Jones"
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How can I use interface as a C# generic type constraint?
...un; if a check fails, the application will fail instantly.
Behavior
The best possible outcome is that our program doesn't compile if the constraints are not met. Unfortunately that's not possible in the current C# implementation.
Next best thing is that the program crashes the moment it's starte...
RESTful Alternatives to DELETE Request Body
...t until they address the very valid issues that the OP has. I'm trying my best to adhere to the spirit of REST, but a delete without optimistic concurrency and a delete that doesn't have an atomic batch operation isn't practical in real-life situations. This is a serious deficiency with the REST p...