1 /*- 2 * Copyright (c) 2017 Spectra Logic Corp 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/event.h> 31 32 #include <aio.h> 33 #include <semaphore.h> 34 35 #include <atf-c.h> 36 37 #include "freebsd_test_suite/macros.h" 38 39 static sem_t completions; 40 41 42 static void 43 handler(int sig __unused) 44 { 45 ATF_REQUIRE_EQ(0, sem_post(&completions)); 46 } 47 48 static void 49 thr_handler(union sigval sv __unused) 50 { 51 ATF_REQUIRE_EQ(0, sem_post(&completions)); 52 } 53 54 /* With LIO_WAIT, an empty lio_listio should return immediately */ 55 ATF_TC_WITHOUT_HEAD(lio_listio_empty_wait); 56 ATF_TC_BODY(lio_listio_empty_wait, tc) 57 { 58 struct aiocb *list = NULL; 59 60 ATF_REQUIRE_EQ(0, lio_listio(LIO_WAIT, &list, 0, NULL)); 61 } 62 63 /* 64 * With LIO_NOWAIT, an empty lio_listio should send completion notification 65 * immediately 66 */ 67 ATF_TC_WITHOUT_HEAD(lio_listio_empty_nowait_kevent); 68 ATF_TC_BODY(lio_listio_empty_nowait_kevent, tc) 69 { 70 struct aiocb *list = NULL; 71 struct sigevent sev; 72 struct kevent kq_returned; 73 int kq, result; 74 void *udata = (void*)0xdeadbeefdeadbeef; 75 76 atf_tc_expect_timeout("Bug 220398 - lio_listio(2) never sends" 77 " asynchronous notification if nent==0"); 78 kq = kqueue(); 79 ATF_REQUIRE(kq > 0); 80 sev.sigev_notify = SIGEV_KEVENT; 81 sev.sigev_notify_kqueue = kq; 82 sev.sigev_value.sival_ptr = udata; 83 ATF_REQUIRE_EQ(0, lio_listio(LIO_NOWAIT, &list, 0, &sev)); 84 result = kevent(kq, NULL, 0, &kq_returned, 1, NULL); 85 ATF_REQUIRE_MSG(result == 1, "Never got completion notification"); 86 ATF_REQUIRE_EQ((uintptr_t)list, kq_returned.ident); 87 ATF_REQUIRE_EQ(EVFILT_LIO, kq_returned.filter); 88 ATF_REQUIRE_EQ(udata, kq_returned.udata); 89 } 90 91 /* 92 * With LIO_NOWAIT, an empty lio_listio should send completion notification 93 * immediately 94 */ 95 ATF_TC_WITHOUT_HEAD(lio_listio_empty_nowait_signal); 96 ATF_TC_BODY(lio_listio_empty_nowait_signal, tc) 97 { 98 struct aiocb *list = NULL; 99 struct sigevent sev; 100 101 atf_tc_expect_timeout("Bug 220398 - lio_listio(2) never sends" 102 " asynchronous notification if nent==0"); 103 ATF_REQUIRE_EQ(0, sem_init(&completions, false, 0)); 104 sev.sigev_notify = SIGEV_SIGNAL; 105 sev.sigev_signo = SIGUSR1; 106 ATF_REQUIRE(SIG_ERR != signal(SIGUSR1, handler)); 107 ATF_REQUIRE_EQ(0, lio_listio(LIO_NOWAIT, &list, 0, &sev)); 108 ATF_REQUIRE_EQ(0, sem_wait(&completions)); 109 ATF_REQUIRE_EQ(0, sem_destroy(&completions)); 110 } 111 112 /* 113 * With LIO_NOWAIT, an empty lio_listio should send completion notification 114 * immediately 115 */ 116 ATF_TC_WITHOUT_HEAD(lio_listio_empty_nowait_thread); 117 ATF_TC_BODY(lio_listio_empty_nowait_thread, tc) 118 { 119 struct aiocb *list = NULL; 120 struct sigevent sev; 121 122 atf_tc_expect_timeout("Bug 220398 - lio_listio(2) never sends" 123 " asynchronous notification if nent==0"); 124 ATF_REQUIRE_EQ(0, sem_init(&completions, false, 0)); 125 bzero(&sev, sizeof(sev)); 126 sev.sigev_notify = SIGEV_THREAD; 127 sev.sigev_notify_function = thr_handler; 128 sev.sigev_notify_attributes = NULL; 129 ATF_REQUIRE_MSG(0 == lio_listio(LIO_NOWAIT, &list, 0, &sev), 130 "lio_listio: %s", strerror(errno)); 131 ATF_REQUIRE_EQ(0, sem_wait(&completions)); 132 ATF_REQUIRE_EQ(0, sem_destroy(&completions)); 133 } 134 135 136 ATF_TP_ADD_TCS(tp) 137 { 138 139 ATF_TP_ADD_TC(tp, lio_listio_empty_nowait_kevent); 140 ATF_TP_ADD_TC(tp, lio_listio_empty_nowait_signal); 141 ATF_TP_ADD_TC(tp, lio_listio_empty_nowait_thread); 142 ATF_TP_ADD_TC(tp, lio_listio_empty_wait); 143 144 return (atf_no_error()); 145 } 146