84 lines
1.9 KiB
Ruby
84 lines
1.9 KiB
Ruby
# -*- coding: us-ascii -*-
|
|
# frozen_string_literal: false
|
|
require 'test/unit'
|
|
require 'tempfile'
|
|
|
|
if Process.euid == 0
|
|
ok = true
|
|
elsif (sudo = ENV["SUDO"]) and !sudo.empty? and (`#{sudo} echo ok` rescue false)
|
|
ok = true
|
|
else
|
|
ok = false
|
|
end
|
|
if ok
|
|
case RUBY_PLATFORM
|
|
when /darwin/i
|
|
begin
|
|
require 'pty'
|
|
rescue LoadError
|
|
ok = false
|
|
end
|
|
end
|
|
end
|
|
ok &= (`dtrace -V` rescue false)
|
|
module DTrace
|
|
class TestCase < Test::Unit::TestCase
|
|
INCLUDE = File.expand_path('..', File.dirname(__FILE__))
|
|
|
|
case RUBY_PLATFORM
|
|
when /solaris/i
|
|
# increase bufsize to 8m (default 4m on Solaris)
|
|
DTRACE_CMD = %w[dtrace -b 8m]
|
|
when /darwin/i
|
|
READ_PROBES = proc do |cmd|
|
|
lines = nil
|
|
PTY.spawn(*cmd) do |io, _, pid|
|
|
lines = io.readlines.each {|line| line.sub!(/\r$/, "")}
|
|
Process.wait(pid)
|
|
end
|
|
lines
|
|
end
|
|
end
|
|
|
|
DTRACE_CMD ||= %w[dtrace]
|
|
|
|
READ_PROBES ||= proc do |cmd|
|
|
IO.popen(cmd, err: [:child, :out], &:readlines)
|
|
end
|
|
|
|
miniruby = "#{RbConfig::TOPDIR}/miniruby#{RbConfig::CONFIG["EXEEXT"]}"
|
|
RUBYBIN = File.exist?(miniruby) ? miniruby : EnvUtil.rubybin
|
|
|
|
def trap_probe d_program, ruby_program
|
|
d = Tempfile.new(%w'probe .d')
|
|
d.write d_program
|
|
d.flush
|
|
|
|
rb = Tempfile.new(%w'probed .rb')
|
|
rb.write ruby_program
|
|
rb.flush
|
|
|
|
d_path = d.path
|
|
rb_path = rb.path
|
|
|
|
cmd = [*DTRACE_CMD, "-q", "-s", d_path, "-c", "#{RUBYBIN} -I#{INCLUDE} #{rb_path}"]
|
|
if sudo = @@sudo
|
|
[RbConfig::CONFIG["LIBPATHENV"], "RUBY", "RUBYOPT"].each do |name|
|
|
if name and val = ENV[name]
|
|
cmd.unshift("#{name}=#{val}")
|
|
end
|
|
end
|
|
cmd.unshift(sudo)
|
|
end
|
|
probes = READ_PROBES.(cmd)
|
|
d.close(true)
|
|
rb.close(true)
|
|
yield(d_path, rb_path, probes)
|
|
end
|
|
end
|
|
end if ok
|
|
|
|
if ok
|
|
DTrace::TestCase.class_variable_set(:@@sudo, sudo)
|
|
end
|