working prototype of rbtrace

gistfile1.txt

~/code/rbtrace (master*) % cat server.rb 
require 'rbtrace'

while true
  Dir.chdir("/tmp") do
    sleep rand*0.5
  end
end

~/code/rbtrace (master*) % ruby server.rb &
[1] 77380

~/code/rbtrace (master*) % ./bin/rbtrace 77380 sleep
Kernel#sleep <0.240676>
Kernel#sleep <0.322608>
Kernel#sleep <0.409339>
Kernel#sleep <0.257449>
Kernel#sleep <0.077697>
^C./bin/rbtrace:95: Interrupt

~/code/rbtrace (master*) % ./bin/rbtrace 77380 Dir.chdir
Dir.chdir <0.351901>
Dir.chdir <0.148917>
Dir.chdir <0.092665>
Dir.chdir <0.040374>
Dir.chdir <0.022981>
Dir.chdir <0.023986>
^C./bin/rbtrace:95: Interrupt