| 1 | """ |
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| 2 | Tests for kqueue wrapper. |
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| 3 | """ |
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| 4 | import socket |
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| 5 | import errno |
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| 6 | import time |
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| 7 | import select |
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| 8 | import sys |
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| 9 | import unittest |
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| 10 | |
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| 11 | from test import test_support |
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| 12 | if not hasattr(select, "kqueue"): |
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| 13 | raise unittest.SkipTest("test works only on BSD") |
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| 14 | |
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| 15 | class TestKQueue(unittest.TestCase): |
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| 16 | def test_create_queue(self): |
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| 17 | kq = select.kqueue() |
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| 18 | self.assertTrue(kq.fileno() > 0, kq.fileno()) |
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| 19 | self.assertTrue(not kq.closed) |
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| 20 | kq.close() |
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| 21 | self.assertTrue(kq.closed) |
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| 22 | self.assertRaises(ValueError, kq.fileno) |
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| 23 | |
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| 24 | def test_create_event(self): |
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| 25 | fd = sys.stderr.fileno() |
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| 26 | ev = select.kevent(fd) |
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| 27 | other = select.kevent(1000) |
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| 28 | self.assertEqual(ev.ident, fd) |
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| 29 | self.assertEqual(ev.filter, select.KQ_FILTER_READ) |
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| 30 | self.assertEqual(ev.flags, select.KQ_EV_ADD) |
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| 31 | self.assertEqual(ev.fflags, 0) |
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| 32 | self.assertEqual(ev.data, 0) |
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| 33 | self.assertEqual(ev.udata, 0) |
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| 34 | self.assertEqual(ev, ev) |
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| 35 | self.assertNotEqual(ev, other) |
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| 36 | self.assertEqual(cmp(ev, other), -1) |
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| 37 | self.assertTrue(ev < other) |
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| 38 | self.assertTrue(other >= ev) |
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| 39 | self.assertRaises(TypeError, cmp, ev, None) |
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| 40 | self.assertRaises(TypeError, cmp, ev, 1) |
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| 41 | self.assertRaises(TypeError, cmp, ev, "ev") |
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| 42 | |
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| 43 | ev = select.kevent(fd, select.KQ_FILTER_WRITE) |
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| 44 | self.assertEqual(ev.ident, fd) |
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| 45 | self.assertEqual(ev.filter, select.KQ_FILTER_WRITE) |
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| 46 | self.assertEqual(ev.flags, select.KQ_EV_ADD) |
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| 47 | self.assertEqual(ev.fflags, 0) |
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| 48 | self.assertEqual(ev.data, 0) |
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| 49 | self.assertEqual(ev.udata, 0) |
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| 50 | self.assertEqual(ev, ev) |
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| 51 | self.assertNotEqual(ev, other) |
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| 52 | |
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| 53 | ev = select.kevent(fd, select.KQ_FILTER_WRITE, select.KQ_EV_ONESHOT) |
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| 54 | self.assertEqual(ev.ident, fd) |
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| 55 | self.assertEqual(ev.filter, select.KQ_FILTER_WRITE) |
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| 56 | self.assertEqual(ev.flags, select.KQ_EV_ONESHOT) |
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| 57 | self.assertEqual(ev.fflags, 0) |
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| 58 | self.assertEqual(ev.data, 0) |
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| 59 | self.assertEqual(ev.udata, 0) |
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| 60 | self.assertEqual(ev, ev) |
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| 61 | self.assertNotEqual(ev, other) |
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| 62 | |
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| 63 | ev = select.kevent(1, 2, 3, 4, 5, 6) |
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| 64 | self.assertEqual(ev.ident, 1) |
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| 65 | self.assertEqual(ev.filter, 2) |
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| 66 | self.assertEqual(ev.flags, 3) |
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| 67 | self.assertEqual(ev.fflags, 4) |
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| 68 | self.assertEqual(ev.data, 5) |
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| 69 | self.assertEqual(ev.udata, 6) |
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| 70 | self.assertEqual(ev, ev) |
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| 71 | self.assertNotEqual(ev, other) |
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| 72 | |
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| 73 | bignum = 0x7fff |
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| 74 | ev = select.kevent(bignum, 1, 2, 3, bignum - 1, bignum) |
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| 75 | self.assertEqual(ev.ident, bignum) |
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| 76 | self.assertEqual(ev.filter, 1) |
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| 77 | self.assertEqual(ev.flags, 2) |
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| 78 | self.assertEqual(ev.fflags, 3) |
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| 79 | self.assertEqual(ev.data, bignum - 1) |
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| 80 | self.assertEqual(ev.udata, bignum) |
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| 81 | self.assertEqual(ev, ev) |
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| 82 | self.assertNotEqual(ev, other) |
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| 83 | |
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| 84 | # Issue 11973 |
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| 85 | bignum = 0xffff |
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| 86 | ev = select.kevent(0, 1, bignum) |
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| 87 | self.assertEqual(ev.ident, 0) |
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| 88 | self.assertEqual(ev.filter, 1) |
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| 89 | self.assertEqual(ev.flags, bignum) |
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| 90 | self.assertEqual(ev.fflags, 0) |
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| 91 | self.assertEqual(ev.data, 0) |
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| 92 | self.assertEqual(ev.udata, 0) |
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| 93 | self.assertEqual(ev, ev) |
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| 94 | self.assertNotEqual(ev, other) |
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| 95 | |
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| 96 | # Issue 11973 |
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| 97 | bignum = 0xffffffff |
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| 98 | ev = select.kevent(0, 1, 2, bignum) |
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| 99 | self.assertEqual(ev.ident, 0) |
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| 100 | self.assertEqual(ev.filter, 1) |
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| 101 | self.assertEqual(ev.flags, 2) |
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| 102 | self.assertEqual(ev.fflags, bignum) |
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| 103 | self.assertEqual(ev.data, 0) |
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| 104 | self.assertEqual(ev.udata, 0) |
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| 105 | self.assertEqual(ev, ev) |
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| 106 | self.assertNotEqual(ev, other) |
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| 107 | |
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| 108 | |
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| 109 | def test_queue_event(self): |
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| 110 | serverSocket = socket.socket() |
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| 111 | serverSocket.bind(('127.0.0.1', 0)) |
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| 112 | serverSocket.listen(1) |
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| 113 | client = socket.socket() |
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| 114 | client.setblocking(False) |
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| 115 | try: |
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| 116 | client.connect(('127.0.0.1', serverSocket.getsockname()[1])) |
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| 117 | except socket.error, e: |
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| 118 | self.assertEqual(e.args[0], errno.EINPROGRESS) |
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| 119 | else: |
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| 120 | #raise AssertionError("Connect should have raised EINPROGRESS") |
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| 121 | pass # FreeBSD doesn't raise an exception here |
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| 122 | server, addr = serverSocket.accept() |
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| 123 | |
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| 124 | kq = select.kqueue() |
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| 125 | kq2 = select.kqueue.fromfd(kq.fileno()) |
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| 126 | |
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| 127 | ev = select.kevent(server.fileno(), |
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| 128 | select.KQ_FILTER_WRITE, |
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| 129 | select.KQ_EV_ADD | select.KQ_EV_ENABLE) |
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| 130 | kq.control([ev], 0) |
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| 131 | ev = select.kevent(server.fileno(), |
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| 132 | select.KQ_FILTER_READ, |
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| 133 | select.KQ_EV_ADD | select.KQ_EV_ENABLE) |
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| 134 | kq.control([ev], 0) |
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| 135 | ev = select.kevent(client.fileno(), |
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| 136 | select.KQ_FILTER_WRITE, |
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| 137 | select.KQ_EV_ADD | select.KQ_EV_ENABLE) |
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| 138 | kq2.control([ev], 0) |
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| 139 | ev = select.kevent(client.fileno(), |
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| 140 | select.KQ_FILTER_READ, |
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| 141 | select.KQ_EV_ADD | select.KQ_EV_ENABLE) |
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| 142 | kq2.control([ev], 0) |
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| 143 | |
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| 144 | events = kq.control(None, 4, 1) |
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| 145 | events = set((e.ident, e.filter) for e in events) |
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| 146 | self.assertEqual(events, set([ |
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| 147 | (client.fileno(), select.KQ_FILTER_WRITE), |
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| 148 | (server.fileno(), select.KQ_FILTER_WRITE)])) |
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| 149 | |
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| 150 | client.send("Hello!") |
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| 151 | server.send("world!!!") |
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| 152 | |
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| 153 | # We may need to call it several times |
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| 154 | for i in range(10): |
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| 155 | events = kq.control(None, 4, 1) |
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| 156 | if len(events) == 4: |
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| 157 | break |
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| 158 | time.sleep(1.0) |
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| 159 | else: |
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| 160 | self.fail('timeout waiting for event notifications') |
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| 161 | |
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| 162 | events = set((e.ident, e.filter) for e in events) |
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| 163 | self.assertEqual(events, set([ |
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| 164 | (client.fileno(), select.KQ_FILTER_WRITE), |
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| 165 | (client.fileno(), select.KQ_FILTER_READ), |
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| 166 | (server.fileno(), select.KQ_FILTER_WRITE), |
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| 167 | (server.fileno(), select.KQ_FILTER_READ)])) |
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| 168 | |
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| 169 | # Remove completely client, and server read part |
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| 170 | ev = select.kevent(client.fileno(), |
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| 171 | select.KQ_FILTER_WRITE, |
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| 172 | select.KQ_EV_DELETE) |
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| 173 | kq.control([ev], 0) |
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| 174 | ev = select.kevent(client.fileno(), |
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| 175 | select.KQ_FILTER_READ, |
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| 176 | select.KQ_EV_DELETE) |
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| 177 | kq.control([ev], 0) |
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| 178 | ev = select.kevent(server.fileno(), |
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| 179 | select.KQ_FILTER_READ, |
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| 180 | select.KQ_EV_DELETE) |
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| 181 | kq.control([ev], 0, 0) |
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| 182 | |
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| 183 | events = kq.control([], 4, 0.99) |
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| 184 | events = set((e.ident, e.filter) for e in events) |
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| 185 | self.assertEqual(events, set([ |
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| 186 | (server.fileno(), select.KQ_FILTER_WRITE)])) |
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| 187 | |
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| 188 | client.close() |
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| 189 | server.close() |
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| 190 | serverSocket.close() |
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| 191 | |
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| 192 | def testPair(self): |
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| 193 | kq = select.kqueue() |
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| 194 | a, b = socket.socketpair() |
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| 195 | |
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| 196 | a.send(b'foo') |
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| 197 | event1 = select.kevent(a, select.KQ_FILTER_READ, select.KQ_EV_ADD | select.KQ_EV_ENABLE) |
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| 198 | event2 = select.kevent(b, select.KQ_FILTER_READ, select.KQ_EV_ADD | select.KQ_EV_ENABLE) |
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| 199 | r = kq.control([event1, event2], 1, 1) |
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| 200 | self.assertTrue(r) |
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| 201 | self.assertFalse(r[0].flags & select.KQ_EV_ERROR) |
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| 202 | self.assertEqual(b.recv(r[0].data), b'foo') |
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| 203 | |
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| 204 | a.close() |
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| 205 | b.close() |
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| 206 | kq.close() |
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| 207 | |
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| 208 | def test_main(): |
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| 209 | test_support.run_unittest(TestKQueue) |
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| 210 | |
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| 211 | if __name__ == "__main__": |
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| 212 | test_main() |
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