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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"))
if Process.respond_to?(:fork)
describe "Callback in conjunction with fork()" do
libtest = Module.new do
extend FFI::Library
ffi_lib TestLibrary::PATH
callback :cbVrL, [ ], :long
attach_function :testCallbackVrL, :testClosureVrL, [ :cbVrL ], :long
AsyncIntCallback = callback [ :int ], :void
attach_function :testAsyncCallback, [ AsyncIntCallback, :int ], :void, blocking: true
end
it "works with forked process and GC" do
expect(libtest.testCallbackVrL { 12345 }).to eq(12345)
fork do
expect(libtest.testCallbackVrL { 12345 }).to eq(12345)
Process.exit 42
end
expect(libtest.testCallbackVrL { 12345 }).to eq(12345)
GC.start
expect(Process.wait2[1].exitstatus).to eq(42)
end
it "works with forked process and free()" do
cbf = FFI::Function.new(FFI::Type::LONG, []) { 234 }
fork do
cbf.free
Process.exit 43
end
expect(libtest.testCallbackVrL(cbf)).to eq(234)
cbf.free
expect(Process.wait2[1].exitstatus).to eq(43)
end
def run_async_callback(libtest)
recv = nil
libtest.testAsyncCallback(proc { |r| recv = r }, 23)
expect(recv).to eq(23)
end
it "async thread dispatch works after forking" do
run_async_callback(libtest)
fork do
run_async_callback(libtest)
Process.exit 44
end
run_async_callback(libtest)
expect(Process.wait2[1].exitstatus).to eq(44)
end
end
end
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