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| | require 'test/unit'
require 'fcntl'
require 'socket'
$-w = true
require 'sleepy_penguin'
class TestEpoll < Test::Unit::TestCase
include SleepyPenguin
RBX = defined?(RUBY_ENGINE) && (RUBY_ENGINE == 'rbx')
def setup
@rd, @wr = IO.pipe
@ep = Epoll.new
end
def test_cross_thread
tmp = []
Thread.new { sleep 0.100; @ep.add(@wr, Epoll::OUT) }
t0 = Time.now
@ep.wait { |flags,obj| tmp << [ flags, obj ] }
elapsed = Time.now - t0
assert elapsed >= 0.100
assert_equal [[Epoll::OUT, @wr]], tmp
end
def test_fork_safe
tmp = []
@ep.add @rd, Epoll::IN
pid = fork do
@ep.wait(nil, 100) { |flags,obj| tmp << [ flags, obj ] }
exit!(tmp.empty?)
end
@wr.syswrite "HI"
_, status = Process.waitpid2(pid)
assert status.success?
@ep.wait(nil, 0) { |flags,obj| tmp << [ flags, obj ] }
assert_equal [[Epoll::IN, @rd]], tmp
end
def test_after_fork_usability
fork { @ep.add(@rd, Epoll::IN); exit!(0) }
fork { @ep.set(@rd, Epoll::IN); exit!(0) }
fork { @ep.to_io; exit!(0) }
fork { @ep.dup; exit!(0) }
fork { @ep.clone; exit!(0) }
fork { @ep.close; exit!(0) }
fork { @ep.closed?; exit!(0) }
fork {
begin
@ep.del(@rd)
rescue Errno::ENOENT
exit!(0)
end
exit!(1)
}
res = Process.waitall
res.each { |(pid,status)| assert status.success? }
end
def test_tcp_connect_nonblock_edge
epflags = Epoll::OUT | Epoll::ET
host = '127.0.0.1'
srv = TCPServer.new(host, 0)
port = srv.addr[1]
addr = Socket.pack_sockaddr_in(port, host)
sock = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)
assert_raises(Errno::EINPROGRESS) { sock.connect_nonblock(addr) }
IO.select(nil, [ sock ], [sock ])
@ep.add(sock, epflags)
tmp = []
@ep.wait(1) { |flags, obj| tmp << [ flags, obj ] }
assert_equal [ [Epoll::OUT, sock] ], tmp
end
def test_tcp_connect_edge
epflags = Epoll::OUT | Epoll::ET
host = '127.0.0.1'
srv = TCPServer.new(host, 0)
port = srv.addr[1]
sock = TCPSocket.new(host, port)
@ep.add(sock, epflags)
tmp = []
@ep.wait(1) { |flags, obj| tmp << [ flags, obj ] }
assert_equal [ [Epoll::OUT, sock] ], tmp
end
def teardown
assert_nothing_raised do
@rd.close unless @rd.closed?
@wr.close unless @wr.closed?
@ep.close unless @ep.closed?
end
end
def test_max_events_big
@ep.add @rd, Epoll::IN
tmp = []
thr = Thread.new { @ep.wait(1024) { |flags, obj| tmp << [ flags, obj ] } }
Thread.pass
assert tmp.empty?
@wr.write '.'
thr.join
assert_equal([[Epoll::IN, @rd]], tmp)
tmp.clear
thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
thr.join
assert_equal([[Epoll::IN, @rd]], tmp)
end
def test_max_events_small
@ep.add @rd, Epoll::IN | Epoll::ET
@ep.add @wr, Epoll::OUT | Epoll::ET
@wr.write '.'
tmp = []
@ep.wait(1) { |flags, obj| tmp << [ flags, obj ] }
assert_equal 1, tmp.size
@ep.wait(1) { |flags, obj| tmp << [ flags, obj ] }
assert_equal 2, tmp.size
end
def test_signal_safe
time = {}
trap(:USR1) { time[:USR1] = Time.now; sleep 0.1; @wr.write '.' }
@ep.add @rd, Epoll::IN
tmp = []
pid = fork do
sleep 0.1 # slightly racy :<
Process.kill(:USR1, Process.ppid)
end
time[:START_WAIT] = Time.now
@ep.wait { |flags, obj| tmp << [ flags, obj ]; time[:EP] = Time.now }
assert_equal([[Epoll::IN, @rd]], tmp)
_, status = Process.waitpid2(pid)
assert status.success?
assert((time[:USR1] - time[:START_WAIT]) >= 0.1)
assert((time[:USR1] - time[:START_WAIT]) < 0.15)
assert((time[:EP] - time[:USR1]) >= 0.1)
assert((time[:EP] - time[:USR1]) < 0.15)
ensure
trap(:USR1, 'DEFAULT')
end unless RBX
def test_close
@ep.add @rd, Epoll::IN
tmp = []
thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
@rd.close
@wr.close
assert_nil thr.join(0.01)
assert thr.alive?
thr.kill
assert tmp.empty?
end
def test_rdhup
defined?(Epoll::RDHUP) or
return warn "skipping test, EPOLLRDHUP not available"
rd, wr = UNIXSocket.pair
@ep.add rd, Epoll::RDHUP
tmp = []
thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
wr.shutdown Socket::SHUT_WR
thr.join
assert_equal([[ Epoll::RDHUP, rd ]], tmp)
end
def test_hup
@ep.add @rd, Epoll::IN
tmp = []
thr = Thread.new { @ep.wait { |flags, obj| tmp << [ flags, obj ] } }
@wr.close
thr.join
assert_equal([[ Epoll::HUP, @rd ]], tmp)
end
def test_multiple
r, w = IO.pipe
assert_nothing_raised do
@ep.add r, Epoll::IN
@ep.add @rd, Epoll::IN
@ep.add w, Epoll::OUT
@ep.add @wr, Epoll::OUT
end
tmp = []
@ep.wait { |flags, obj| tmp << [ flags, obj ] }
assert_equal 2, tmp.size
assert_equal [ Epoll::OUT ], tmp.map { |flags, obj| flags }.uniq
ios = tmp.map { |flags, obj| obj }
assert ios.include?(@wr)
assert ios.include?(w)
end
def test_gc
assert_nothing_raised { 4096.times { Epoll.new } }
assert ! @ep.closed?
end unless RBX
def test_gc_to_io
assert_nothing_raised do
4096.times do
ep = Epoll.new
io = ep.to_io
end
end
assert ! @ep.closed?
end unless RBX
def test_clone
tmp = []
clone = @ep.clone
assert @ep.to_io.fileno != clone.to_io.fileno
clone.add @wr, Epoll::OUT
@ep.wait(nil, 0) { |flags, obj| tmp << [ flags, obj ] }
assert_equal([[Epoll::OUT, @wr]], tmp)
assert_nothing_raised { clone.close }
end
def test_dup
tmp = []
clone = @ep.dup
assert @ep.to_io.fileno != clone.to_io.fileno
clone.add @wr, Epoll::OUT
@ep.wait(nil, 0) { |flags, obj| tmp << [ flags, obj ] }
assert_equal([[Epoll::OUT, @wr]], tmp)
assert_nothing_raised { clone.close }
end
def test_set_idempotency
assert_nothing_raised do
@ep.set @rd, Epoll::IN
@ep.set @rd, Epoll::IN
@ep.set @wr, Epoll::OUT
@ep.set @wr, Epoll::OUT
end
end
def test_wait_timeout
t0 = Time.now
assert_equal 0, @ep.wait(nil, 100) { |flags,obj| assert false }
diff = Time.now - t0
assert(diff >= 0.075, "#{diff} < 0.100s")
end
def test_del
assert_raises(Errno::ENOENT) { @ep.del(@rd) }
assert_nothing_raised do
@ep.add(@rd, Epoll::IN)
@ep.del(@rd)
end
end
def test_wait_read
@ep.add(@rd, Epoll::IN)
assert_equal 0, @ep.wait(nil, 0) { |flags,obj| assert false }
@wr.syswrite '.'
i = 0
nr = @ep.wait(nil, 0) do |flags,obj|
assert_equal Epoll::IN, flags
assert_equal obj, @rd
i += 1
end
assert_equal 1, i
assert_equal 1, nr
end
def test_wait_write
@ep.add(@wr, Epoll::OUT | Epoll::IN)
i = 0
nr = @ep.wait(nil, 0) do |flags, obj|
assert_equal Epoll::OUT, flags
assert_equal obj, @wr
i += 1
end
assert_equal 1, nr
assert_equal 1, i
end
def test_wait_write_blocked
begin
@wr.write_nonblock('.' * 65536)
rescue Errno::EAGAIN
break
end while true
@ep.add(@wr, Epoll::OUT | Epoll::IN)
i = 0
assert_equal 0, @ep.wait(nil, 0) { |flags,event| assert false }
end
def test_selectable
tmp = nil
@ep.add @rd, Epoll::IN
thr = Thread.new { tmp = IO.select([ @ep ]) }
thr.join 0.01
assert_nil tmp
@wr.write '.'
thr.join
assert_equal([[@ep],[],[]], tmp)
end
def test_new_no_cloexec
@ep.close
io = Epoll.new(0).to_io
assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == 0)
end
def test_new_cloexec
@ep.close
io = Epoll.new(Epoll::CLOEXEC).to_io
assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == Fcntl::FD_CLOEXEC)
end
def test_new
@ep.close
io = Epoll.new.to_io
assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == Fcntl::FD_CLOEXEC)
end
def test_delete
assert_nil @ep.delete(@rd)
assert_nil @ep.delete(@wr)
assert_nothing_raised { @ep.add @rd, Epoll::IN }
assert_equal @rd, @ep.delete(@rd)
assert_nil @ep.delete(@rd)
end
def test_io_for
@ep.add @rd, Epoll::IN
assert_equal @rd, @ep.io_for(@rd.fileno)
assert_equal @rd, @ep.io_for(@rd)
@ep.del @rd
assert_nil @ep.io_for(@rd.fileno)
assert_nil @ep.io_for(@rd)
end
def test_flags_for
@ep.add @rd, Epoll::IN
assert_equal Epoll::IN, @ep.flags_for(@rd.fileno)
assert_equal Epoll::IN, @ep.flags_for(@rd)
@ep.del @rd
assert_nil @ep.flags_for(@rd.fileno)
assert_nil @ep.flags_for(@rd)
end
def test_include?
assert ! @ep.include?(@rd)
@ep.add @rd, Epoll::IN
assert @ep.include?(@rd)
assert @ep.include?(@rd.fileno)
assert ! @ep.include?(@wr)
assert ! @ep.include?(@wr.fileno)
end
end
|