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#
# This file is part of ruby-ffi.
# For licensing, see LICENSE.SPECS
#
require File.expand_path(File.join(File.dirname(__FILE__), "spec_helper"))
describe "async callback" do
module LibTest
extend FFI::Library
ffi_lib TestLibrary::PATH
AsyncIntCallback = callback [ :int ], :void
@blocking = true
attach_function :testAsyncCallback, [ AsyncIntCallback, :int ], :void
end
it ":int (0x7fffffff) argument" do
skip "not yet supported on TruffleRuby" if RUBY_ENGINE == "truffleruby"
v = 0xdeadbeef
called = false
cb = Proc.new {|i| v = i; called = Thread.current }
LibTest.testAsyncCallback(cb, 0x7fffffff)
expect(called).to be_kind_of(Thread)
expect(called).to_not eq(Thread.current)
expect(v).to eq(0x7fffffff)
end
it "called a second time" do
skip "not yet supported on TruffleRuby" if RUBY_ENGINE == "truffleruby"
v = 1
th1 = th2 = false
LibTest.testAsyncCallback(2) { |i| v += i; th1 = Thread.current }
LibTest.testAsyncCallback(3) { |i| v += i; th2 = Thread.current }
expect(th1).to be_kind_of(Thread)
expect(th2).to be_kind_of(Thread)
expect(th1).to_not eq(Thread.current)
expect(th2).to_not eq(Thread.current)
expect(th1).to_not eq(th2)
expect(v).to eq(6)
end
it "sets the name of the thread that runs the callback" do
skip "not yet supported on TruffleRuby" if RUBY_ENGINE == "truffleruby"
skip "not yet supported on JRuby" if RUBY_ENGINE == "jruby"
callback_runner_thread = nil
LibTest.testAsyncCallback(proc { callback_runner_thread = Thread.current }, 0)
expect(callback_runner_thread.name).to eq("FFI Callback Runner")
end
it "works in Ractor", :ractor do
skip "not yet supported on TruffleRuby" if RUBY_ENGINE == "truffleruby"
res = Ractor.new do
v = 0xdeadbeef
correct_ractor = false
correct_thread = false
thread = Thread.current
rac = Ractor.current
cb = Proc.new do |i|
v = i
correct_ractor = rac == Ractor.current
correct_thread = thread != Thread.current
end
LibTest.testAsyncCallback(cb, 0x7fffffff)
[v, correct_ractor, correct_thread]
end.take
expect(res).to eq([0x7fffffff, true, true])
end
end
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