diff options
Diffstat (limited to 'rt/tst-mqueue5.c')
| -rw-r--r-- | rt/tst-mqueue5.c | 1014 |
1 files changed, 1014 insertions, 0 deletions
diff --git a/rt/tst-mqueue5.c b/rt/tst-mqueue5.c new file mode 100644 index 0000000000..cdbad287a3 --- /dev/null +++ b/rt/tst-mqueue5.c @@ -0,0 +1,1014 @@ +/* Test mq_notify. + Copyright (C) 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <mqueue.h> +#include <limits.h> +#include <signal.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> +#include <sys/time.h> +#include <sys/wait.h> +#include <time.h> +#include <unistd.h> +#include "tst-mqueue.h" + +#define TIMEOUT 3 + +#if _POSIX_THREADS +# include <pthread.h> + +volatile int rtmin_cnt; +volatile pid_t rtmin_pid; +volatile uid_t rtmin_uid; +volatile int rtmin_code; +volatile union sigval rtmin_sigval; + +static void +rtmin_handler (int sig, siginfo_t *info, void *ctx) +{ + if (sig != SIGRTMIN) + abort (); + ++rtmin_cnt; + rtmin_pid = info->si_pid; + rtmin_uid = info->si_uid; + rtmin_code = info->si_code; + rtmin_sigval = info->si_value; +} + +#define mqsend(q) (mqsend) (q, __LINE__) +static inline int +(mqsend) (mqd_t q, int line) +{ + char c; + if (mq_send (q, &c, 1, 1) != 0) + { + printf ("mq_send on line %d failed with: %m\n", line); + return 1; + } + return 0; +} + +#define mqrecv(q) (mqrecv) (q, __LINE__) +static inline int +(mqrecv) (mqd_t q, int line) +{ + char c; + ssize_t rets = TEMP_FAILURE_RETRY (mq_receive (q, &c, 1, NULL)); + if (rets != 1) + { + if (rets == -1) + printf ("mq_receive on line %d failed with: %m\n", line); + else + printf ("mq_receive on line %d returned %zd != 1\n", + line, rets); + return 1; + } + return 0; +} + +struct thr_data +{ + const char *name; + pthread_barrier_t *b3; + mqd_t q; +}; + +static void * +thr (void *arg) +{ + pthread_barrier_t *b3 = ((struct thr_data *)arg)->b3; + mqd_t q = ((struct thr_data *)arg)->q; + const char *name = ((struct thr_data *)arg)->name; + int result = 0; + + result |= mqrecv (q); + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been sent. */ + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should trigger notification. */ + + (void) pthread_barrier_wait (b3); + + if (rtmin_cnt != 2) + { + puts ("SIGRTMIN signal in child did not arrive"); + result = 1; + } + else if (rtmin_pid != getppid () + || rtmin_uid != getuid () + || rtmin_code != SI_MESGQ + || rtmin_sigval.sival_int != 0xdeadbeef) + { + printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (%d)\n", + rtmin_pid, getppid (), rtmin_uid, getuid (), + rtmin_code, SI_MESGQ, rtmin_sigval.sival_int, 0xdeadbeef); + result = 1; + } + + struct sigevent ev; + memset (&ev, 0x82, sizeof (ev)); + ev.sigev_notify = SIGEV_NONE; + if (mq_notify (q, &ev) != 0) + { + printf ("mq_notify in thread (q, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + if (mq_notify (q, NULL) != 0) + { + printf ("mq_notify in thread (q, NULL) failed with: %m\n"); + result = 1; + } + + result |= mqrecv (q); + + (void) pthread_barrier_wait (b3); + + /* Child calls mq_notify (q, { SIGEV_SIGNAL }). */ + + (void) pthread_barrier_wait (b3); + + if (mq_notify (q, NULL) != 0) + { + printf ("second mq_notify in thread (q, NULL) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should not trigger notification. */ + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been received. */ + /* Child calls mq_notify (q, { SIGEV_SIGNAL }). */ + + (void) pthread_barrier_wait (b3); + + mqd_t q4 = mq_open (name, O_RDONLY); + if (q4 == (mqd_t) -1) + { + printf ("mq_open in thread failed with: %m\n"); + result = 1; + } + + if (mq_notify (q4, NULL) != 0) + { + printf ("mq_notify in thread (q4, NULL) failed with: %m\n"); + result = 1; + } + + if (mq_close (q4) != 0) + { + printf ("mq_close in thread failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should not trigger notification. */ + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been received. */ + /* Child calls mq_notify (q, { SIGEV_SIGNAL }). */ + + (void) pthread_barrier_wait (b3); + + mqd_t q5 = mq_open (name, O_WRONLY); + if (q5 == (mqd_t) -1) + { + printf ("mq_open O_WRONLY in thread failed with: %m\n"); + result = 1; + } + + if (mq_notify (q5, NULL) != 0) + { + printf ("mq_notify in thread (q5, NULL) failed with: %m\n"); + result = 1; + } + + if (mq_close (q5) != 0) + { + printf ("mq_close in thread failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should not trigger notification. */ + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been received. */ + + return (void *) (long) result; +} + +static void +do_child (const char *name, pthread_barrier_t *b2, pthread_barrier_t *b3, + mqd_t q) +{ + int result = 0; + + struct sigevent ev; + memset (&ev, 0x55, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_ptr = &ev; + if (mq_notify (q, &ev) == 0) + { + puts ("first mq_notify in child (q, { SIGEV_SIGNAL }) unexpectedly succeeded"); + result = 1; + } + else if (errno != EBUSY) + { + printf ("first mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Parent calls mqsend (q), which makes notification available. */ + + (void) pthread_barrier_wait (b2); + + rtmin_cnt = 0; + + if (mq_notify (q, &ev) != 0) + { + printf ("second mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + if (rtmin_cnt != 0) + { + puts ("SIGRTMIN signal in child caught too early"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Parent unsuccessfully attempts to mq_notify. */ + /* Parent calls mqsend (q), which makes notification available + and triggers a signal in the child. */ + /* Parent successfully calls mq_notify SIGEV_SIGNAL. */ + + (void) pthread_barrier_wait (b2); + + if (rtmin_cnt != 1) + { + puts ("SIGRTMIN signal in child did not arrive"); + result = 1; + } + else if (rtmin_pid != getppid () + || rtmin_uid != getuid () + || rtmin_code != SI_MESGQ + || rtmin_sigval.sival_ptr != &ev) + { + printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_ptr %p (%p)\n", + rtmin_pid, getppid (), rtmin_uid, getuid (), + rtmin_code, SI_MESGQ, rtmin_sigval.sival_ptr, &ev); + result = 1; + } + + result |= mqsend (q); + + (void) pthread_barrier_wait (b2); + + /* Parent verifies caught SIGRTMIN. */ + + mqd_t q2 = mq_open (name, O_RDWR); + if (q2 == (mqd_t) -1) + { + printf ("mq_open in child failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Parent mq_open's another mqd_t for the same queue (q3). */ + + memset (&ev, 0x11, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_ptr = &ev; + if (mq_notify (q2, &ev) != 0) + { + printf ("mq_notify in child (q2, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Parent unsuccessfully attempts to mq_notify { SIGEV_NONE } on q. */ + + (void) pthread_barrier_wait (b2); + + if (mq_close (q2) != 0) + { + printf ("mq_close failed: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Parent successfully calls mq_notify { SIGEV_NONE } on q3. */ + + (void) pthread_barrier_wait (b2); + + memset (&ev, 0xbb, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_ptr = &b2; + if (mq_notify (q, &ev) == 0) + { + puts ("third mq_notify in child (q, { SIGEV_SIGNAL }) unexpectedly succeeded"); + result = 1; + } + else if (errno != EBUSY) + { + printf ("third mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Parent calls mq_close on q3, which makes the queue available again for + notification. */ + + (void) pthread_barrier_wait (b2); + + memset (&ev, 0x13, sizeof (ev)); + ev.sigev_notify = SIGEV_NONE; + if (mq_notify (q, &ev) != 0) + { + printf ("mq_notify in child (q, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + if (mq_notify (q, NULL) != 0) + { + printf ("mq_notify in child (q, NULL) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + struct thr_data thr_data = { .name = name, .b3 = b3, .q = q }; + pthread_t th; + int ret = pthread_create (&th, NULL, thr, &thr_data); + if (ret) + { + errno = ret; + printf ("pthread_created failed with: %m\n"); + result = 1; + } + + /* Wait till thr calls mq_receive on the empty queue q and blocks on it. */ + sleep (1); + + memset (&ev, 0x5f, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_int = 0xdeadbeef; + if (mq_notify (q, &ev) != 0) + { + printf ("fourth mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Parent calls mqsend (q), which should wake up mqrecv (q) + in the thread but no notification should be sent. */ + + (void) pthread_barrier_wait (b3); + + if (rtmin_cnt != 1) + { + puts ("SIGRTMIN signal caught while thr was blocked on mq_receive"); + result = 1; + } + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should trigger notification. */ + + (void) pthread_barrier_wait (b3); + + /* Thread verifies SIGRTMIN has been received. */ + /* Thread calls mq_notify (q, { SIGEV_NONE }) to verify notification is now + available for registration. */ + /* Thread calls mq_notify (q, NULL). */ + + (void) pthread_barrier_wait (b3); + + memset (&ev, 0x6a, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_ptr = do_child; + if (mq_notify (q, &ev) != 0) + { + printf ("fifth mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b3); + + /* Thread calls mq_notify (q, NULL), which should unregister the above + notification. */ + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should not trigger notification. */ + + (void) pthread_barrier_wait (b3); + + if (rtmin_cnt != 2) + { + puts ("SIGRTMIN signal caught while notification has been disabled"); + result = 1; + } + + memset (&ev, 0x7b, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_ptr = thr; + if (mq_notify (q, &ev) != 0) + { + printf ("sixth mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b3); + + /* Thread opens a new O_RDONLY mqd_t (q4). */ + /* Thread calls mq_notify (q4, NULL), which should unregister the above + notification. */ + /* Thread calls mq_close (q4). */ + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should not trigger notification. */ + + (void) pthread_barrier_wait (b3); + + if (rtmin_cnt != 2) + { + puts ("SIGRTMIN signal caught while notification has been disabled"); + result = 1; + } + + memset (&ev, 0xe1, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_int = 127; + if (mq_notify (q, &ev) != 0) + { + printf ("seventh mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b3); + + /* Thread opens a new O_WRONLY mqd_t (q5). */ + /* Thread calls mq_notify (q5, NULL), which should unregister the above + notification. */ + /* Thread calls mq_close (q5). */ + + (void) pthread_barrier_wait (b3); + + /* Parent calls mqsend (q), which should not trigger notification. */ + + (void) pthread_barrier_wait (b3); + + if (rtmin_cnt != 2) + { + puts ("SIGRTMIN signal caught while notification has been disabled"); + result = 1; + } + + void *thr_ret; + ret = pthread_join (th, &thr_ret); + if (ret) + { + errno = ret; + printf ("pthread_join failed: %m\n"); + result = 1; + } + else if (thr_ret) + result = 1; + + if (mq_close (q) != 0) + { + printf ("mq_close failed: %m\n"); + result = 1; + } + + exit (result); +} + +#define TEST_FUNCTION do_test () +static int +do_test (void) +{ + int result = 0; + + char tmpfname[] = "/tmp/tst-mqueue5-barrier.XXXXXX"; + int fd = mkstemp (tmpfname); + if (fd == -1) + { + printf ("cannot open temporary file: %m\n"); + return 1; + } + + /* Make sure it is always removed. */ + unlink (tmpfname); + + /* Create one page of data. */ + size_t ps = sysconf (_SC_PAGESIZE); + char data[ps]; + memset (data, '\0', ps); + + /* Write the data to the file. */ + if (write (fd, data, ps) != (ssize_t) ps) + { + puts ("short write"); + return 1; + } + + void *mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (mem == MAP_FAILED) + { + printf ("mmap failed: %m\n"); + return 1; + } + + pthread_barrier_t *b2; + b2 = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t)) + & ~(__alignof (pthread_barrier_t) - 1)); + + pthread_barrier_t *b3; + b3 = b2 + 1; + + pthread_barrierattr_t a; + if (pthread_barrierattr_init (&a) != 0) + { + puts ("barrierattr_init failed"); + return 1; + } + + if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0) + { + puts ("barrierattr_setpshared failed, could not test"); + return 0; + } + + if (pthread_barrier_init (b2, &a, 2) != 0) + { + puts ("barrier_init failed"); + return 1; + } + + if (pthread_barrier_init (b3, &a, 3) != 0) + { + puts ("barrier_init failed"); + return 1; + } + + if (pthread_barrierattr_destroy (&a) != 0) + { + puts ("barrierattr_destroy failed"); + return 1; + } + + char name[sizeof "/tst-mqueue5-" + sizeof (pid_t) * 3]; + snprintf (name, sizeof (name), "/tst-mqueue5-%u", getpid ()); + + struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 }; + mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); + + if (q == (mqd_t) -1) + { + printf ("mq_open failed with: %m\n"); + return result; + } + else + add_temp_mq (name); + + struct sigevent ev; + memset (&ev, 0xaa, sizeof (ev)); + ev.sigev_notify = SIGEV_NONE; + if (mq_notify (q, &ev) != 0) + { + printf ("mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + if (mq_notify (q, &ev) == 0) + { + puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded"); + result = 1; + } + else if (errno != EBUSY) + { + printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + result |= mqsend (q); + + if (mq_notify (q, &ev) != 0) + { + printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + result |= mqrecv (q); + + if (mq_notify (q, NULL) != 0) + { + printf ("mq_notify (q, NULL) failed with: %m\n"); + result = 1; + } + + if (mq_notify (q, NULL) != 0) + { + /* Implementation-defined behaviour, so don't fail, + just inform. */ + printf ("second mq_notify (q, NULL) failed with: %m\n"); + } + + struct sigaction sa = { .sa_sigaction = rtmin_handler, + .sa_flags = SA_SIGINFO }; + sigemptyset (&sa.sa_mask); + sigaction (SIGRTMIN, &sa, NULL); + + memset (&ev, 0x55, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_int = 26; + if (mq_notify (q, &ev) != 0) + { + printf ("mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + ev.sigev_value.sival_ptr = &ev; + if (mq_notify (q, &ev) == 0) + { + puts ("second mq_notify (q, { SIGEV_SIGNAL }) unexpectedly succeeded"); + result = 1; + } + else if (errno != EBUSY) + { + printf ("second mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + if (rtmin_cnt != 0) + { + puts ("SIGRTMIN signal caught too early"); + result = 1; + } + + result |= mqsend (q); + + if (rtmin_cnt != 1) + { + puts ("SIGRTMIN signal did not arrive"); + result = 1; + } + else if (rtmin_pid != getpid () + || rtmin_uid != getuid () + || rtmin_code != SI_MESGQ + || rtmin_sigval.sival_int != 26) + { + printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (26)\n", + rtmin_pid, getpid (), rtmin_uid, getuid (), + rtmin_code, SI_MESGQ, rtmin_sigval.sival_int); + result = 1; + } + + ev.sigev_value.sival_int = 75; + if (mq_notify (q, &ev) != 0) + { + printf ("third mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + result |= mqrecv (q); + + if (mq_notify (q, NULL) != 0) + { + printf ("mq_notify (q, NULL) failed with: %m\n"); + result = 1; + } + + memset (&ev, 0x33, sizeof (ev)); + ev.sigev_notify = SIGEV_NONE; + if (mq_notify (q, &ev) != 0) + { + printf ("fourth mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + pid_t pid = fork (); + if (pid == -1) + { + printf ("fork () failed: %m\n"); + mq_unlink (name); + return 1; + } + + if (pid == 0) + do_child (name, b2, b3, q); + + /* Child unsuccessfully attempts to mq_notify. */ + + (void) pthread_barrier_wait (b2); + + result |= mqsend (q); + + (void) pthread_barrier_wait (b2); + + /* Child successfully calls mq_notify SIGEV_SIGNAL now. */ + + result |= mqrecv (q); + + (void) pthread_barrier_wait (b2); + + memset (&ev, 0xbb, sizeof (ev)); + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGRTMIN; + ev.sigev_value.sival_int = 15; + if (mq_notify (q, &ev) == 0) + { + puts ("fourth mq_notify (q, { SIGEV_SIGNAL }) unexpectedly succeeded"); + result = 1; + } + else if (errno != EBUSY) + { + printf ("fourth mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + result |= mqsend (q); + + if (mq_notify (q, &ev) != 0) + { + printf ("fifth mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n"); + result = 1; + } + + if (rtmin_cnt != 1) + { + puts ("SIGRTMIN signal caught too early"); + result = 1; + } + + result |= mqrecv (q); + + (void) pthread_barrier_wait (b2); + + /* Child verifies caught SIGRTMIN signal. */ + /* Child calls mq_send (q) which triggers SIGRTMIN signal here. */ + + (void) pthread_barrier_wait (b2); + + /* Child mq_open's another mqd_t for the same queue (q2). */ + + if (rtmin_cnt != 2) + { + puts ("SIGRTMIN signal did not arrive"); + result = 1; + } + else if (rtmin_pid != pid + || rtmin_uid != getuid () + || rtmin_code != SI_MESGQ + || rtmin_sigval.sival_int != 15) + { + printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (15)\n", + rtmin_pid, pid, rtmin_uid, getuid (), + rtmin_code, SI_MESGQ, rtmin_sigval.sival_int); + result = 1; + } + + result |= mqrecv (q); + + (void) pthread_barrier_wait (b2); + + /* Child successfully calls mq_notify { SIGEV_SIGNAL } on q2. */ + + (void) pthread_barrier_wait (b2); + + memset (&ev, 0xbb, sizeof (ev)); + ev.sigev_notify = SIGEV_NONE; + if (mq_notify (q, &ev) == 0) + { + puts ("fifth mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded"); + result = 1; + } + else if (errno != EBUSY) + { + printf ("fifth mq_notify (q, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Child calls mq_close on q2, which makes the queue available again for + notification. */ + + mqd_t q3 = mq_open (name, O_RDWR); + if (q3 == (mqd_t) -1) + { + printf ("mq_open q3 in parent failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + memset (&ev, 0x12, sizeof (ev)); + ev.sigev_notify = SIGEV_NONE; + if (mq_notify (q3, &ev) != 0) + { + printf ("mq_notify (q3, { SIGEV_NONE }) failed with: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Child unsuccessfully attempts to mq_notify { SIGEV_SIGNAL } on q. */ + + (void) pthread_barrier_wait (b2); + + if (mq_close (q3) != 0) + { + printf ("mq_close failed: %m\n"); + result = 1; + } + + (void) pthread_barrier_wait (b2); + + /* Child successfully calls mq_notify { SIGEV_NONE } on q. */ + /* Child successfully calls mq_notify NULL on q. */ + + (void) pthread_barrier_wait (b2); + + /* Child creates new thread. */ + /* Thread blocks on mqrecv (q). */ + /* Child sleeps for 1sec so that thread has time to reach that point. */ + /* Child successfully calls mq_notify { SIGEV_SIGNAL } on q. */ + + (void) pthread_barrier_wait (b2); + + result |= mqsend (q); + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been sent. */ + + (void) pthread_barrier_wait (b3); + + result |= mqsend (q); + + (void) pthread_barrier_wait (b3); + + /* Thread verifies SIGRTMIN has been caught. */ + /* Thread calls mq_notify (q, { SIGEV_NONE }) to verify notification is now + available for registration. */ + /* Thread calls mq_notify (q, NULL). */ + + (void) pthread_barrier_wait (b3); + + /* Child calls mq_notify (q, { SIGEV_SIGNAL }). */ + + (void) pthread_barrier_wait (b3); + + /* Thread calls mq_notify (q, NULL). */ + + (void) pthread_barrier_wait (b3); + + result |= mqsend (q); + result |= mqrecv (q); + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been sent. */ + /* Child calls mq_notify (q, { SIGEV_SIGNAL }). */ + + (void) pthread_barrier_wait (b3); + + /* Thread opens a new O_RDONLY mqd_t (q4). */ + /* Thread calls mq_notify (q4, NULL). */ + /* Thread calls mq_close (q4). */ + + (void) pthread_barrier_wait (b3); + + result |= mqsend (q); + result |= mqrecv (q); + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been sent. */ + /* Child calls mq_notify (q, { SIGEV_SIGNAL }). */ + + (void) pthread_barrier_wait (b3); + + /* Thread opens a new O_WRONLY mqd_t (q5). */ + /* Thread calls mq_notify (q5, NULL). */ + /* Thread calls mq_close (q5). */ + + (void) pthread_barrier_wait (b3); + + result |= mqsend (q); + result |= mqrecv (q); + + (void) pthread_barrier_wait (b3); + + /* Child verifies SIGRTMIN has not been sent. */ + + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + { + puts ("waitpid failed"); + kill (pid, SIGKILL); + result = 1; + } + else if (!WIFEXITED (status) || WEXITSTATUS (status)) + { + printf ("child failed with status %d\n", status); + result = 1; + } + + if (mq_unlink (name) != 0) + { + printf ("mq_unlink failed: %m\n"); + result = 1; + } + + if (mq_close (q) != 0) + { + printf ("mq_close failed: %m\n"); + result = 1; + } + + if (mq_notify (q, NULL) == 0) + { + puts ("mq_notify on closed mqd_t unexpectedly succeeded"); + result = 1; + } + else if (errno != EBADF) + { + printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n"); + result = 1; + } + + memset (&ev, 0x55, sizeof (ev)); + ev.sigev_notify = SIGEV_NONE; + if (mq_notify (q, &ev) == 0) + { + puts ("mq_notify on closed mqd_t unexpectedly succeeded"); + result = 1; + } + else if (errno != EBADF) + { + printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n"); + result = 1; + } + + return result; +} +#else +# define TEST_FUNCTION 0 +#endif + +#include "../test-skeleton.c" |