some versions of Ruby had a broken Tempfile which didn't work well with unlinked files. This one is much shorter, easier to understand, and slightly faster.
creates and returns a new File object. The File is unlinked immediately, switched to binary mode, and userspace output buffering is disabled
# File lib/phusion_passenger/utils/tmpio.rb, line 15 def self.new(namespace) fp = begin super("#{Dir::tmpdir}/#{namespace}-#{rand}", RDWR|CREAT|EXCL, 0600) rescue Errno::EEXIST retry end unlink(fp.path) fp.binmode fp.sync = true fp end
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