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Is there a way for multiple processes to share a listening socket?

...POSIX type OS), using fork() will cause the forked child to have copies of all the parent's file descriptors. Any that it does not close will continue to be shared, and (for example with a TCP listening socket) can be used to accept() new sockets for clients. This is how many servers, including Apac...
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How to use LINQ to select object with minimum or maximum property value

...lower than the other solution suggested. However, if this is a LINQ to SQL table and DateOfBirth is an indexed column, then SQL Server will use the index instead of sorting all the rows. Other custom IEnumerable<T> implementations could also make use of indexes (see i4o: Indexed LINQ, or the o...
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How to build for armv6 and armv7 architectures with iOS 5

... had to make some modifications so it would work correctly under iOS5, but all those changes were done with iOS4-friendly code changes. We also added some iOS5-specific capabilities in a manner that allows the app to run without crashing under iOS4. Specifically, we tested for iOS5 capabilities bef...
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How exactly does a generator comprehension work?

... generator expression is like a list comprehension, but instead of finding all the items you're interested and packing them into list, it waits, and yields each item out of the expression, one by one. >>> my_list = [1, 3, 5, 9, 2, 6] >>> filtered_list = [item for item in my_list i...
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Unix's 'ls' sort by name

...t the FILEs (the current directory by default). Sort entries alpha‐betically if none of -cftuvSUX nor --sort is specified.: share | improve this answer | follow ...
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How to conditionally push an item in an observable array?

... }; In HTML, i have the following ($parent is due to this being inside a table row loop): <select data-bind="visible: editing, hasfocus: editing, options: $parent.jobroles, optionsText: 'name', optionsValue: 'id', value: jobroleId, optionsCaption: '-- Select --'"> ...
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Get IP address of visitors using Flask for Python

...emote_addr) When proxies, such as nginx, forward addresses, they typically include the original IP somewhere in the request headers. Update See the flask-security implementation. Again, review the documentation about ProxyFix before implementing. Your solution may vary based on your particular...
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A semantics for Bash scripts?

...patchwork together little scripts that appear to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programming language. For example: What is the evaluation order? what are the scoping rules? What is the typing discipline, e.g. is ever...
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C# Sanitize File Name

... And another potentially great SO user goes walking... This function is great. Thank you Adrevdm... – Dan Rosenstark Aug 1 '09 at 2:15 ...
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What is the difference between Set and List?

...tees about the implementation of the order (and that the order may not be stable between calls, unlike with an ordered list). – lilbyrdie Apr 10 '14 at 15:35 ...