From 26c490f404731d053a6205719b6246502c07b449 Mon Sep 17 00:00:00 2001 From: Patrick Simianer Date: Sat, 14 Jun 2014 16:46:27 +0200 Subject: init --- ruby/blocks.rb | 15 +++++++++++++++ ruby/call_by_reference.rb | 14 ++++++++++++++ ruby/class_method.rb | 36 ++++++++++++++++++++++++++++++++++++ ruby/cmp.rb | 29 +++++++++++++++++++++++++++++ ruby/extend_array.rb | 12 ++++++++++++ ruby/lowercase.rb | 10 ++++++++++ ruby/modules.rb | 16 ++++++++++++++++ ruby/spawn.rb | 10 ++++++++++ ruby/spawn_with_timeout.rb | 17 +++++++++++++++++ ruby/threads.rb | 37 +++++++++++++++++++++++++++++++++++++ ruby/timeout.rb | 18 ++++++++++++++++++ 11 files changed, 214 insertions(+) create mode 100755 ruby/blocks.rb create mode 100755 ruby/call_by_reference.rb create mode 100755 ruby/class_method.rb create mode 100755 ruby/cmp.rb create mode 100755 ruby/extend_array.rb create mode 100755 ruby/lowercase.rb create mode 100755 ruby/modules.rb create mode 100755 ruby/spawn.rb create mode 100755 ruby/spawn_with_timeout.rb create mode 100755 ruby/threads.rb create mode 100755 ruby/timeout.rb (limited to 'ruby') diff --git a/ruby/blocks.rb b/ruby/blocks.rb new file mode 100755 index 0000000..9cea44f --- /dev/null +++ b/ruby/blocks.rb @@ -0,0 +1,15 @@ +#!/usr/bin/env ruby + + +def a + i = 0 + while line = STDIN.gets + yield i, line + i += 1 + end +end + +a { |i,j| + puts "#{i} #{j}" +} + diff --git a/ruby/call_by_reference.rb b/ruby/call_by_reference.rb new file mode 100755 index 0000000..12dc933 --- /dev/null +++ b/ruby/call_by_reference.rb @@ -0,0 +1,14 @@ +#!/usr/bin/env ruby + + +def fun w + w << "x" +end + + +w = [1,3,4,5] + +fun w + +puts w.to_s + diff --git a/ruby/class_method.rb b/ruby/class_method.rb new file mode 100755 index 0000000..447a477 --- /dev/null +++ b/ruby/class_method.rb @@ -0,0 +1,36 @@ +#!/usr/bin/env ruby + + +class A + attr_accessor :z + + def initialize + self.z = 'a' + end + + def self.a + r = self.new + return r + end +end + +class B < A + + def initialize + self.z = 'b' + end + + def b + "b" + end +end + +a = A.new +b = B.new + +puts a.z +puts b.z +puts +x = B.a +puts x.z + diff --git a/ruby/cmp.rb b/ruby/cmp.rb new file mode 100755 index 0000000..65e5c5f --- /dev/null +++ b/ruby/cmp.rb @@ -0,0 +1,29 @@ +#!/usr/bin/env ruby + + +class A + attr_accessor :a + + def initialize a + @a = a + end + + def == other + @a.size == other.a.size + end + alias :eql? :== + + def hash + @a.hash + end +end + +a = A.new 'a' +b = A.new 'b' +ax = A.new 'a' + +puts a == ax + +l = [a, b, ax] +puts l.uniq.size + diff --git a/ruby/extend_array.rb b/ruby/extend_array.rb new file mode 100755 index 0000000..9b00917 --- /dev/null +++ b/ruby/extend_array.rb @@ -0,0 +1,12 @@ +#!/usr/bin/env ruby + + +class Array + def sum + self.inject(:+) + end +end + +a = [1,2,3] +puts a.sum + diff --git a/ruby/lowercase.rb b/ruby/lowercase.rb new file mode 100755 index 0000000..52c1097 --- /dev/null +++ b/ruby/lowercase.rb @@ -0,0 +1,10 @@ +#!/usr/bin/env ruby + +STDIN.set_encoding 'utf-8' +STDOUT.set_encoding 'utf-8' + + +while line = STDIN.gets + STDOUT.write line.downcase +end + diff --git a/ruby/modules.rb b/ruby/modules.rb new file mode 100755 index 0000000..673bd82 --- /dev/null +++ b/ruby/modules.rb @@ -0,0 +1,16 @@ +#!/usr/bin/env ruby + + +module X + def self.f + return 42 + end + + def X::g + return 23 + end +end + +puts X::f +puts X::g + diff --git a/ruby/spawn.rb b/ruby/spawn.rb new file mode 100755 index 0000000..8ee810a --- /dev/null +++ b/ruby/spawn.rb @@ -0,0 +1,10 @@ +#!/usr/bin/env ruby + + +cmd = "for i in {1..30}; do echo '123456789'; done" +pipe_in, pipe_out = IO.pipe +pid = Process.spawn(cmd, :out => pipe_out, :err => pipe_out) +Process.wait pid +pipe_out.close +puts pipe_in.read + diff --git a/ruby/spawn_with_timeout.rb b/ruby/spawn_with_timeout.rb new file mode 100755 index 0000000..a884673 --- /dev/null +++ b/ruby/spawn_with_timeout.rb @@ -0,0 +1,17 @@ +#!/usr/bin/env ruby + +require 'timeout' + + +cmd = "for i in {1..2000000}; do echo '123456789'; done" +pipe_in, pipe_out = IO.pipe +pid = Process.spawn(cmd, :out => pipe_out, :err => pipe_out) +begin + Timeout.timeout(1) { Process.wait pid } +rescue Timeout::Error + puts 'process not finished in time, killing it' + Process.kill('TERM', pid) +end +pipe_out.close +puts pipe_in.read + diff --git a/ruby/threads.rb b/ruby/threads.rb new file mode 100755 index 0000000..ca2d0b2 --- /dev/null +++ b/ruby/threads.rb @@ -0,0 +1,37 @@ +#!/usr/bin/env ruby + +require 'thread' + + +prev = 'z' +('a'..'r').each { |i| + Marshal.dump({i=>1,prev=>1,'x'=>1}, File.new("test.#{i}", 'wb')) + prev = i +} + +a = [] +threads = [] +mutex = Mutex.new +('a'..'r').each { |i| + threads << Thread.new(i) { |c| + mutex.synchronize { puts c } + h = Marshal.load(File.new('test.'+c, 'rb')) + puts "#{c} x" + mutex.synchronize { a << h } + } +} +threads.each { |t| t.join } +puts '--' +threads = [] +while a.size > 1 + threads << Thread.new { + i = j = nil + mutex.synchronize { i = a.pop; j = a.pop } + i.merge!(j) { |k,v,w| v+w } + mutex.synchronize { a << i } + } + threads.each { |t| t.join } +end + +File.open('counts.merged', 'wb') { |f| Marshal.dump(a[0], f) } + diff --git a/ruby/timeout.rb b/ruby/timeout.rb new file mode 100755 index 0000000..f5c1e7e --- /dev/null +++ b/ruby/timeout.rb @@ -0,0 +1,18 @@ +#!/usr/bin/env ruby + +require 'timeout' + + +puts 'starting process' +pid = Process.spawn('sleep 20') +begin + Timeout.timeout(5) do + puts 'waiting for the process to end' + Process.wait(pid) + puts 'process finished in time' + end +rescue Timeout::Error + puts 'process not finished in time, killing it' + Process.kill('TERM', pid) +end + -- cgit v1.2.3