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IOCTL Linux device driver [closed]

...l, which means "input-output control" is a kind of device-specific system call. There are only a few system calls in Linux (300-400), which are not enough to express all the unique functions devices may have. So a driver can define an ioctl which allows a userspace application to send it orders. How...
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The quest for the Excel custom function tooltip

...ication.MacroOptions ( VBA6 ) ( VBA7 ), but this information does not actually appear as a tooltip, so it does not solve my problem. ...
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Catch a thread's exception in the caller thread in Python

I'm very new to Python and multithreaded programming in general. Basically, I have a script that will copy files to another location. I would like this to be placed in another thread so I can output .... to indicate that the script is still running. ...
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Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate

...ts, but in most situations should correspond to them). You should additionally use the JPA annotation like @Column(nullable = false) to give the jpa provider hints to generate the right DDL for creating table columns with the database constraints you want. If you can or want to rely on a JPA provi...
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How to parse/read a YAML file into a Python object? [duplicate]

...ame: Node 2 branch2-1: name: Node 2-1 And you've installed PyYAML like this: pip install PyYAML And the Python code looks like this: import yaml with open('tree.yaml') as f: # use safe_load instead load dataMap = yaml.safe_load(f) The variable dataMap now contains...
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Wrap a delegate in an IEqualityComparer

...fying. But I still don't understand your hashing policy of t => 0. If all objects always hash to the same thing (zero), then isn't that even more broken than using obj.GetHashCode, per @Dan Tao's point? Why not always force the caller to provide a good hash function? – Jo...
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What is the best way to stop people hacking the PHP-based highscore table of a Flash game

...e key encryptions and high score postings throughout the binary. This is all mostly a waste of time. It goes without saying, SSL isn't going to help you either; SSL can't protect you when one of the two SSL endpoints is evil. Here are some things that can actually reduce high score fraud: Requi...
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How to read a file into a variable in shell?

... Ok but it's bash, not sh; it may not fit all cases. – moala Apr 15 '13 at 11:25 18 ...
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Python: Select subset from list based on index set

I have several lists having all the same number of entries (each specifying an object property): 5 Answers ...
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mysql -> insert into tbl (select from another table) and some default values [duplicate]

... If you want to insert all the columns then insert into def select * from abc; here the number of columns in def should be equal to abc. if you want to insert the subsets of columns then insert into def (col1,col2, col3 ) select scol1,scol2,...