diff options
Diffstat (limited to 'sysdeps/pthread')
| -rw-r--r-- | sysdeps/pthread/Makefile | 3 | ||||
| -rw-r--r-- | sysdeps/pthread/tst-flock2.c | 259 | ||||
| -rw-r--r-- | sysdeps/pthread/tst-signal1.c | 188 | ||||
| -rw-r--r-- | sysdeps/pthread/tst-signal2.c | 197 |
4 files changed, 646 insertions, 1 deletions
diff --git a/sysdeps/pthread/Makefile b/sysdeps/pthread/Makefile index fb78e55e27..5f9610ecbf 100644 --- a/sysdeps/pthread/Makefile +++ b/sysdeps/pthread/Makefile @@ -67,7 +67,7 @@ tests += tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \ tst-eintr2 tst-eintr3 tst-eintr4 tst-eintr5 \ tst-exec1 tst-exec2 tst-exec3 \ tst-exit1 tst-exit2 tst-exit3 \ - tst-flock1 \ + tst-flock1 tst-flock2 \ tst-fork1 tst-fork2 tst-fork3 tst-fork4 \ tst-atfork1 \ tst-getpid3 \ @@ -92,6 +92,7 @@ tests += tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \ tst-sem1 tst-sem2 tst-sem3 tst-sem4 tst-sem5 tst-sem6 tst-sem7 \ tst-sem8 tst-sem9 tst-sem10 tst-sem14 tst-sem15 tst-sem16 \ tst-setuid3 \ + tst-signal1 tst-signal2 \ tst-signal4 tst-signal5 tst-signal6 tst-signal8 \ tst-spin1 tst-spin2 tst-spin3 tst-spin4 \ tst-stack1 \ diff --git a/sysdeps/pthread/tst-flock2.c b/sysdeps/pthread/tst-flock2.c new file mode 100644 index 0000000000..62a9117da9 --- /dev/null +++ b/sysdeps/pthread/tst-flock2.c @@ -0,0 +1,259 @@ +/* Copyright (C) 2002-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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, see + <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/file.h> +#include <sys/mman.h> +#include <sys/wait.h> + + +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_mutex_t lock2 = PTHREAD_MUTEX_INITIALIZER; +static int fd; + + +static void * +tf (void *arg) +{ + struct flock fl = + { + .l_type = F_WRLCK, + .l_start = 0, + .l_whence = SEEK_SET, + .l_len = 10 + }; + if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) + { + puts ("fourth fcntl failed"); + exit (1); + } + + pthread_mutex_unlock (&lock); + + pthread_mutex_lock (&lock2); + + return NULL; +} + + +static int +do_test (void) +{ + char tmp[] = "/tmp/tst-flock2-XXXXXX"; + + fd = mkstemp (tmp); + if (fd == -1) + { + puts ("mkstemp failed"); + return 1; + } + + unlink (tmp); + + int i; + for (i = 0; i < 20; ++i) + write (fd, "foobar xyzzy", 12); + + pthread_barrier_t *b; + b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE, + MAP_SHARED, fd, 0); + if (b == MAP_FAILED) + { + puts ("mmap failed"); + return 1; + } + + pthread_barrierattr_t ba; + if (pthread_barrierattr_init (&ba) != 0) + { + puts ("barrierattr_init failed"); + return 1; + } + + if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0) + { + puts ("barrierattr_setpshared failed"); + return 1; + } + + if (pthread_barrier_init (b, &ba, 2) != 0) + { + puts ("barrier_init failed"); + return 1; + } + + if (pthread_barrierattr_destroy (&ba) != 0) + { + puts ("barrierattr_destroy failed"); + return 1; + } + + struct flock fl = + { + .l_type = F_WRLCK, + .l_start = 0, + .l_whence = SEEK_SET, + .l_len = 10 + }; + if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) + { + puts ("first fcntl failed"); + return 1; + } + + pid_t pid = fork (); + if (pid == -1) + { + puts ("fork failed"); + return 1; + } + + if (pid == 0) + { + /* Make sure the child does not stay around indefinitely. */ + alarm (10); + + /* Try to get the lock. */ + if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0) + { + puts ("child: second flock succeeded"); + return 1; + } + } + + pthread_barrier_wait (b); + + if (pid != 0) + { + fl.l_type = F_UNLCK; + if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) + { + puts ("third fcntl failed"); + return 1; + } + } + + pthread_barrier_wait (b); + + pthread_t th; + if (pid == 0) + { + if (pthread_mutex_lock (&lock) != 0) + { + puts ("1st locking of lock failed"); + return 1; + } + + if (pthread_mutex_lock (&lock2) != 0) + { + puts ("1st locking of lock2 failed"); + return 1; + } + + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("pthread_create failed"); + return 1; + } + + if (pthread_mutex_lock (&lock) != 0) + { + puts ("2nd locking of lock failed"); + return 1; + } + + puts ("child locked file"); + } + + pthread_barrier_wait (b); + + if (pid != 0) + { + fl.l_type = F_WRLCK; + if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0) + { + puts ("fifth fcntl succeeded"); + return 1; + } + + puts ("file locked by child"); + } + + pthread_barrier_wait (b); + + if (pid == 0) + { + if (pthread_mutex_unlock (&lock2) != 0) + { + puts ("unlock of lock2 failed"); + return 1; + } + + if (pthread_join (th, NULL) != 0) + { + puts ("join failed"); + return 1; + } + + puts ("child's thread terminated"); + } + + pthread_barrier_wait (b); + + if (pid != 0) + { + fl.l_type = F_WRLCK; + if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLK, &fl)) == 0) + { + puts ("fifth fcntl succeeded"); + return 1; + } + + puts ("file still locked"); + } + + pthread_barrier_wait (b); + + if (pid == 0) + { + _exit (0); + } + + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + { + puts ("waitpid failed"); + return 1; + } + puts ("child terminated"); + + if (TEMP_FAILURE_RETRY (fcntl (fd, F_SETLKW, &fl)) != 0) + { + puts ("sixth fcntl failed"); + return 1; + } + + return status; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" diff --git a/sysdeps/pthread/tst-signal1.c b/sysdeps/pthread/tst-signal1.c new file mode 100644 index 0000000000..2779213dc2 --- /dev/null +++ b/sysdeps/pthread/tst-signal1.c @@ -0,0 +1,188 @@ +/* Copyright (C) 2002-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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, see + <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <pthread.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/wait.h> + + +static sigset_t ss; +static pthread_barrier_t *b; + + +static void * +tf (void *arg) +{ + sigdelset (&ss, SIGINT); + + if (pthread_sigmask (SIG_SETMASK, &ss, NULL) != 0) + { + puts ("2nd pthread_sigmask failed"); + exit (1); + } + + pthread_barrier_wait (b); + + int sig; + int res = sigwait (&ss, &sig); + if (res == 0) + { + printf ("sigwait returned successfully with signal %d\n", sig); + exit (1); + } + + printf ("sigwait returned with %s (%d)\n", strerror (res), res); + + return NULL; +} + + +static void +receiver (void) +{ + pthread_t th; + + /* Make sure the process doesn't run forever. */ + alarm (10); + + sigfillset (&ss); + + if (pthread_sigmask (SIG_SETMASK, &ss, NULL) != 0) + { + puts ("1st pthread_sigmask failed"); + exit (1); + } + + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("pthread_create failed"); + exit (1); + } + + if (pthread_join (th, NULL) == 0) + { + puts ("thread joined?!"); + exit (1); + } + + _exit (0); +} + + +static int +do_test (void) +{ + char tmp[] = "/tmp/tst-signal1-XXXXXX"; + + int fd = mkstemp (tmp); + if (fd == -1) + { + puts ("mkstemp failed"); + exit (1); + } + + unlink (tmp); + + int i; + for (i = 0; i < 20; ++i) + write (fd, "foobar xyzzy", 12); + + b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE, + MAP_SHARED, fd, 0); + if (b == MAP_FAILED) + { + puts ("mmap failed"); + exit (1); + } + + pthread_barrierattr_t ba; + if (pthread_barrierattr_init (&ba) != 0) + { + puts ("barrierattr_init failed"); + exit (1); + } + + if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0) + { + puts ("barrierattr_setpshared failed"); + exit (1); + } + + if (pthread_barrier_init (b, &ba, 2) != 0) + { + puts ("barrier_init failed"); + exit (1); + } + + if (pthread_barrierattr_destroy (&ba) != 0) + { + puts ("barrierattr_destroy failed"); + exit (1); + } + + pid_t pid = fork (); + if (pid == -1) + { + puts ("fork failed"); + exit (1); + } + + if (pid == 0) + receiver (); + + pthread_barrier_wait (b); + + /* Wait a bit more. */ + struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; + nanosleep (&ts, NULL); + + /* Send the signal. */ + puts ("sending the signal now"); + kill (pid, SIGINT); + + /* Wait for the process to terminate. */ + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + { + puts ("wrong child reported terminated"); + exit (1); + } + + if (!WIFSIGNALED (status)) + { + puts ("child wasn't signalled"); + exit (1); + } + + if (WTERMSIG (status) != SIGINT) + { + puts ("child not terminated with SIGINT"); + exit (1); + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" diff --git a/sysdeps/pthread/tst-signal2.c b/sysdeps/pthread/tst-signal2.c new file mode 100644 index 0000000000..53e0ca6377 --- /dev/null +++ b/sysdeps/pthread/tst-signal2.c @@ -0,0 +1,197 @@ +/* Copyright (C) 2002-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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, see + <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <pthread.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/wait.h> +#include <string.h> + + +static sigset_t ss; +static pthread_barrier_t *b; + + +static void * +tf (void *arg) +{ + pthread_barrier_wait (b); + + puts ("child: calling sigwait now"); + + int sig; + int err; + err = sigwait (&ss, &sig); + if (err != 0) + { + printf ("sigwait returned unsuccessfully: %s (%d)\n", + strerror (err), err); + _exit (1); + } + + puts ("sigwait returned"); + + if (sig != SIGINT) + { + printf ("caught signal %d, expected %d (SIGINT)\n", sig, SIGINT); + _exit (1); + } + + puts ("child thread terminating now"); + + return NULL; +} + + +static void +receiver (void) +{ + pthread_t th; + + /* Make sure the process doesn't run forever. */ + alarm (10); + + sigfillset (&ss); + + if (pthread_sigmask (SIG_SETMASK, &ss, NULL) != 0) + { + puts ("1st pthread_sigmask failed"); + _exit (1); + } + + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("pthread_create failed"); + _exit (1); + } + + if (pthread_join (th, NULL) != 0) + { + puts ("thread didn't join"); + _exit (1); + } + + puts ("join succeeded"); + + _exit (0); +} + + +static int +do_test (void) +{ + char tmp[] = "/tmp/tst-signal1-XXXXXX"; + + int fd = mkstemp (tmp); + if (fd == -1) + { + puts ("mkstemp failed"); + exit (1); + } + + unlink (tmp); + + int i; + for (i = 0; i < 20; ++i) + write (fd, "foobar xyzzy", 12); + + b = mmap (NULL, sizeof (pthread_barrier_t), PROT_READ | PROT_WRITE, + MAP_SHARED, fd, 0); + if (b == MAP_FAILED) + { + puts ("mmap failed"); + exit (1); + } + + pthread_barrierattr_t ba; + if (pthread_barrierattr_init (&ba) != 0) + { + puts ("barrierattr_init failed"); + exit (1); + } + + if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0) + { + puts ("barrierattr_setpshared failed"); + exit (1); + } + + if (pthread_barrier_init (b, &ba, 2) != 0) + { + puts ("barrier_init failed"); + exit (1); + } + + if (pthread_barrierattr_destroy (&ba) != 0) + { + puts ("barrierattr_destroy failed"); + exit (1); + } + + pid_t pid = fork (); + if (pid == -1) + { + puts ("fork failed"); + exit (1); + } + + if (pid == 0) + receiver (); + + pthread_barrier_wait (b); + + /* Wait a bit more. */ + struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; + nanosleep (&ts, NULL); + + /* Send the signal. */ + puts ("sending the signal now"); + kill (pid, SIGINT); + + /* Wait for the process to terminate. */ + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + { + puts ("wrong child reported terminated"); + exit (1); + } + + if (!WIFEXITED (status)) + { + if (WIFSIGNALED (status)) + printf ("child exited with signal %d\n", WTERMSIG (status)); + else + puts ("child didn't exit normally"); + exit (1); + } + + if (WEXITSTATUS (status) != 0) + { + printf ("exit status %d != 0\n", WEXITSTATUS (status)); + exit (1); + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |