reverse-complement Matz's Ruby #3 program
source code
# The Computer Language Benchmarks Game
# https://salsa.debian.org/benchmarksgame-team/benchmarksgame/
#
# Contributed by Aaron Tavistock
def process_segment(segment)
(header, _, sequence) = segment.partition("\n")
sequence.delete!("\n\r >")
sequence.reverse!
sequence.tr!(
'wsatugcyrkmbdhvnATUGCYRKMBDHVN',
'WSTAACGRYMKVHDBNTAACGRYMKVHDBN'
)
results = [">#{header}"]
idx = 0
length = sequence.length
while idx < length
results << sequence[idx,60]
idx += 60
end
results.join("\n")
end
def forking_worker(segment)
reader, writer = IO.pipe
pid = Process.fork do
begin
reader.close
results = process_segment(segment)
Marshal.dump(results, writer)
ensure
writer.close
end
end
writer.close
begin
results = Marshal.load(reader)
ensure
reader.close
end
Process.waitpid(pid)
results
end
threads = []
$stdin.each_line('>') do |segment|
next if segment.length < 2
threads << Thread.new do
Thread.current[:output] = forking_worker(segment)
end
end
threads.each(&:join)
threads.each do |thread|
puts thread[:output]
end
notes, command-line, and program output
NOTES:
64-bit Ubuntu quad core
ruby 1.8.7
(2014-01-28
patchlevel 376)
[x86_64-linux]
Thu, 09 Feb 2023 16:16:38 GMT
COMMAND LINE:
/usr/share/rvm/rubies/ruby-1.8.7-head/bin/ruby revcomp.mri-3.mri 0 < revcomp-input250000.txt
PROGRAM FAILED
PROGRAM OUTPUT:
revcomp.mri-3.mri:43:in `load': method `getc' called on terminated object (0x5579fc103430) (NotImplementedError)
from revcomp.mri-3.mri:43:in `join'
from revcomp.mri-3.mri:43:in `to_proc'
from revcomp.mri-3.mri:60:in `each'
from revcomp.mri-3.mri:60