6511ed4345
Ruby often idomaticaly uses blocks to open a resource and close it
again automatically. For example:
file = File.open('file', 'r')
# do work with file
file.close
# vs
File.open('file', 'r') do |file|
# do work with file
end
# file closed automatically
This teaches semaphores a similar technique:
semaphore = Concurrent::Semaphore.new(1)
semaphore.acquire
# do work
semaphore.release
# vs
semaphore.acquire do
# do work
end
# permit automatically released
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| .. | ||
| com/concurrent_ruby/ext | ||
| ConcurrentRubyService.java | ||