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Java concurrency: Countdown latch vs Cyclic barrier
...could be renamed to ResetbleCountDownLatch.
We should tell the differences from the perspective of their goals, which are described in JavaDoc
CountDownLatch: A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.
CyclicB...
What version of Visual Studio is Python on my computer compiled with?
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Where does this table come from?
– Glyph
Aug 20 '12 at 0:30
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jQuery slideUp().remove() doesn't seem to show the slideUp animation before remove occurs
... Effecively hides the element, but does not actually remove it from the DOM.
– andreszs
Feb 3 '15 at 4:11
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How many files can I put in a directory?
...eaddir() so you can specify the buffer size when reading directory entries from disk.
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Uninstall old versions of Ruby gems
...gems/ruby-2.1.1@project/cache/nokogiri-1.6.6.2.gem
the, you can remove it from cache:
rm /home/rails/.rvm/gems/ruby-2.1.1@project/cache/nokogiri-1.6.6.2.gem
For more detail:
http://blog.grepruby.com/2015/04/way-to-clean-up-gem-or-remove-old.html
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Jsoup SocketTimeoutException: Read timed out
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Set timeout while connecting from jsoup.
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What is copy-on-write?
...arlie's answer have already made it very clear. I will give you an example from OS world, just to mention how widely this concept is used.
We can use fork() or vfork() to create a new process. vfork follows the concept of copy-on-write. For example, the child process created by vfork will share the...
.keyCode vs. .which
...e is now deprecated and will be dropped:
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Avoid using it and update existing code if possible; see the compatibility table at the bottom of this page to guide yo...
What are libtool's .la file for?
...es it mean that in order to generate .la file, I need to use libtool (e.g. from automake)? One can rely on libtool to link the object files (gnu.org/software/libtool/manual/html_node/Using-Automake.html) but if I want to distribute a library without .la, does it mean it will be very difficult to lin...
Rails 3 datatypes?
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As find from this blog. The tinyint/smallint/bigint can be set by using :limit option with :integer. I have tested it on Rails 3 and MySQL, they are still working, just as said in the blog, they are signed integer.
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