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Re: [PATCH 7/7] nptl: Add POSIX-proposed pthread_rwlock_clockrdlock & pthread_rwlock_clockwrlock
- From: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- To: libc-alpha at sourceware dot org
- Date: Thu, 7 Mar 2019 09:59:20 -0300
- Subject: Re: [PATCH 7/7] nptl: Add POSIX-proposed pthread_rwlock_clockrdlock & pthread_rwlock_clockwrlock
- References: <cover.b0c66849a87ca79889a49f2f1f2563b1a8a15d8b.1551291557.git-series.mac@mcrowe.com> <787e8b4fb2282cd7af54e203dd4d3807d196a195.1551291557.git-series.mac@mcrowe.com>
On 27/02/2019 15:23, Mike Crowe wrote:
> Add:
> int pthread_rwlock_clockrdlock (pthread_rwlock_t *rwlock,
> clockid_t clockid,
> const struct timespec *abstime)
> and:
> int pthread_rwlock_clockwrlock (pthread_rwlock_t *rwlock,
> clockid_t clockid,
> const struct timespec *abstime)
>
> which behave like pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock
> respectively, except they always measure abstime against the supplied
> clockid. The functions currently support CLOCK_REALTIME and CLOCK_MONOTONIC
> and return EINVAL if any other clock is specified.
>
> * sysdeps/nptl/pthread.h: Add pthread_rwlock_clockrdlock and
> pthread_wrlock_clockwrlock.
>
> * nptl/Makefile: Build pthread_rwlock_clockrdlock.c and
> pthread_rwlock_clockwrlock.c.
>
> * nptl/pthread_rwlock_clockrdlock.c: Implement pthread_rwlock_clockrdlock.
>
> * nptl/pthread_rwlock_clockwrlock.c: Implement pthread_rwlock_clockwrlock.
>
> * nptl/pthread_rwlock_common.c (__pthread_rwlock_rdlock_full): Add clockid
> parameter and verify that it indicates a supported clock on entry so that
> we fail even if it doesn't end up being used. Pass that clock on to
> futex_abstimed_wait when necessary. (__pthread_rwlock_wrlock_full):
> Likewise.
>
> * nptl/pthread_rwlock_rdlock.c: (__pthread_rwlock_rdlock): Pass
> CLOCK_REALTIME to __pthread_rwlock_rdlock_full even though it won't be
> used because there's no timeout.
>
> * nptl/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Pass
> CLOCK_REALTIME to __pthread_rwlock_wrlock_full even though it won't be
> used because there is no timeout.
>
> * nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock): Pass
> CLOCK_REALTIME to __pthread_rwlock_rdlock_full since abstime uses that
> clock.
>
> * nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock): Pass
> CLOCK_REALTIME to __pthread_rwlock_wrlock_full since abstime uses that
> clock.
>
> * nptl/tst-abstime.c (th): Add pthread_rwlock_clockrdlock and
> pthread_rwlock_clockwrlock timeout tests to match the existing
> pthread_rwlock_timedrdloock and pthread_rwlock_timedwrlock tests.
>
> * nptl/tst-rwlock14.c (do_test): Likewise.
>
> * nptl/tst-rwlock6.c (tf): Accept thread_args structure so that both a
> rwlock and a clockid can be passed to the thread. (do_test_clock): Accept
> clockid parameter to specify test clock. Use the magic clockid value of
> CLOCK_USE_TIMEDLOCK to indicate that pthread_rwlock_timedrdlock and
> pthread_rwlock_timedwrlock should be tested, otherwise pass the specified
> clockid to pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock.
> (do_test): Call do_test_clock to test each clockid in turn.
>
> * nptl/tst-rwlock7.c: Likewise, but also pass the name of the function being
> tested to improve error reporting.
>
> * nptl/tst-rwlock9.c (writer_thread, reader_thread): Accept thread_args
> structure so that both the (now int) thread number and clockid can be
> passed to the thread. (do_test_clock): Pass the necessary thread_args
> when creating the reader and writer threads. (do_test): Call
> do_test_clock to test each clockid in turn.
>
> * manual/threads.texi: Add documentation for pthread_rwlock_clockrdlock and
> pthread_rwlock_clockwrclock.
> ---
> manual/threads.texi | 28 ++-
> nptl/Makefile | 2 +-
> nptl/Versions | 1 +-
> nptl/pthread_rwlock_clockrdlock.c | 27 ++-
> nptl/pthread_rwlock_clockwrlock.c | 27 ++-
> nptl/pthread_rwlock_common.c | 40 +--
> nptl/pthread_rwlock_rdlock.c | 2 +-
> nptl/pthread_rwlock_timedrdlock.c | 2 +-
> nptl/pthread_rwlock_timedwrlock.c | 2 +-
> nptl/pthread_rwlock_wrlock.c | 2 +-
> nptl/tst-abstime.c | 28 ++-
> nptl/tst-rwlock14.c | 147 ++++++++++++-
> nptl/tst-rwlock6.c | 105 ++++++---
> nptl/tst-rwlock7.c | 75 ++++--
> nptl/tst-rwlock9.c | 86 +++++--
> sysdeps/nptl/pthread.h | 8 +-
> sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist | 2 +-
> 17 files changed, 491 insertions(+), 93 deletions(-)
> create mode 100644 nptl/pthread_rwlock_clockrdlock.c
> create mode 100644 nptl/pthread_rwlock_clockwrlock.c
>
> diff --git a/manual/threads.texi b/manual/threads.texi
> index 91462f5..83b8bb6 100644
> --- a/manual/threads.texi
> +++ b/manual/threads.texi
> @@ -699,6 +699,34 @@ specified or defaulted when @code{pthread_cond_init} was called. Currently,
> @code{CLOCK_REALTIME}.
> @end deftypefun
>
> +@comment pthread.h
> +@comment POSIX-proposed
> +@deftypefun int pthread_rwlock_clockrdlock (pthread_rwlock_t *@var{rwlock},
> + clockid_t @var{clockid},
> + const struct timespec *@var{abstime})
> +
> +@safety{@prelim{}@mtsafe{}@asunsafe{@asulock{}}@acunsafe{@aculock{}}}
> +Behaves like @code{pthread_rwlock_timedrdlock} except the time
> +@var{abstime} is measured against the clock specified by @var{clockid}
> +rather than @code{CLOCK_REALTIME}. Currently, @var{clockid} must be either
> +@code{CLOCK_MONOTONIC} or @code{CLOCK_REALTIME}, otherwise @code{EINVAL} is
> +returned.
> +@end deftypefun
> +
> +@comment pthread.h
> +@comment POSIX-proposed
> +@deftypefun int pthread_rwlock_clockwrlock (pthread_rwlock_t *@var{rwlock},
> + clockid_t @var{clockid},
> + const struct timespec *@var{abstime})
> +
> +@safety{@prelim{}@mtsafe{}@asunsafe{@asulock{}}@acunsafe{@aculock{}}}
> +Behaves like @code{pthread_rwlock_timedwrlock} except the time
> +@var{abstime} is measured against the clock specified by @var{clockid}
> +rather than @code{CLOCK_REALTIME}. Currently, @var{clockid} must be either
> +@code{CLOCK_MONOTONIC} or @code{CLOCK_REALTIME}, otherwise @code{EINVAL} is
> +returned.
> +@end deftypefun
> +
> @c FIXME these are undocumented:
> @c pthread_atfork
> @c pthread_attr_destroy
> diff --git a/nptl/Makefile b/nptl/Makefile
> index 7de4d40..f5e6d90 100644
> --- a/nptl/Makefile
> +++ b/nptl/Makefile
> @@ -76,7 +76,9 @@ libpthread-routines = nptl-init nptlfreeres vars events version pt-interp \
> pthread_mutexattr_gettype pthread_mutexattr_settype \
> pthread_rwlock_init pthread_rwlock_destroy \
> pthread_rwlock_rdlock pthread_rwlock_timedrdlock \
> + pthread_rwlock_clockrdlock \
> pthread_rwlock_wrlock pthread_rwlock_timedwrlock \
> + pthread_rwlock_clockwrlock \
> pthread_rwlock_tryrdlock pthread_rwlock_trywrlock \
> pthread_rwlock_unlock \
> pthread_rwlockattr_init pthread_rwlockattr_destroy \
> diff --git a/nptl/Versions b/nptl/Versions
> index 8c094d0..ce79959 100644
> --- a/nptl/Versions
> +++ b/nptl/Versions
> @@ -279,6 +279,7 @@ libpthread {
>
> GLIBC_2.30 {
> sem_clockwait; pthread_cond_clockwait;
> + pthread_rwlock_clockrdlock; pthread_rwlock_clockwrlock;
> }
>
> GLIBC_PRIVATE {
Same naming issue noted by Joseph in first patch reply.
> diff --git a/nptl/pthread_rwlock_clockrdlock.c b/nptl/pthread_rwlock_clockrdlock.c
> new file mode 100644
> index 0000000..a6c7456
> --- /dev/null
> +++ b/nptl/pthread_rwlock_clockrdlock.c
> @@ -0,0 +1,27 @@
Missing one-line description.
> +/* Copyright (C) 2019 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + 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
> + <http://www.gnu.org/licenses/>. */
> +
> +#include "pthread_rwlock_common.c"
> +
> +/* See pthread_rwlock_common.c. */
> +int
> +pthread_rwlock_clockrdlock (pthread_rwlock_t *rwlock,
> + clockid_t clockid,
> + const struct timespec *abstime)
> +{
> + return __pthread_rwlock_rdlock_full (rwlock, clockid, abstime);
> +}
> diff --git a/nptl/pthread_rwlock_clockwrlock.c b/nptl/pthread_rwlock_clockwrlock.c
> new file mode 100644
> index 0000000..d248a2a
> --- /dev/null
> +++ b/nptl/pthread_rwlock_clockwrlock.c
> @@ -0,0 +1,27 @@
Missing one-line description.
> +/* Copyright (C) 2019 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + 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
> + <http://www.gnu.org/licenses/>. */
> +
> +#include "pthread_rwlock_common.c"
> +
> +/* See pthread_rwlock_common.c. */
> +int
> +pthread_rwlock_clockwrlock (pthread_rwlock_t *rwlock,
> + clockid_t clockid,
> + const struct timespec *abstime)
> +{
> + return __pthread_rwlock_wrlock_full (rwlock, clockid, abstime);
> +}
> diff --git a/nptl/pthread_rwlock_common.c b/nptl/pthread_rwlock_common.c
> index 120b880..50a366e 100644
> --- a/nptl/pthread_rwlock_common.c
> +++ b/nptl/pthread_rwlock_common.c
> @@ -278,17 +278,19 @@ __pthread_rwlock_rdunlock (pthread_rwlock_t *rwlock)
>
> static __always_inline int
> __pthread_rwlock_rdlock_full (pthread_rwlock_t *rwlock,
> + clockid_t clockid,
> const struct timespec *abstime)
> {
> unsigned int r;
>
> - /* Make sure any passed in timeout value is valid. Note that the previous
> - implementation assumed that this check *must* not be performed if there
> - would in fact be no blocking; however, POSIX only requires that "the
> - validity of the abstime parameter need not be checked if the lock can be
> - immediately acquired" (i.e., we need not but may check it). */
> - if (abstime
> - && __glibc_unlikely (abstime->tv_nsec >= 1000000000
> + /* Make sure any passed in clockid and timeout value are valid. Note
> + that the previous implementation assumed that this check *must*
> + not be performed if there would in fact be no blocking; however,
> + POSIX only requires that "the validity of the abstime parameter
> + need not be checked if the lock can be immediately acquired"
> + (i.e., we need not but may check it). */
> + if (abstime && __glibc_unlikely (!futex_abstimed_supported_clockid (clockid)
> + || abstime->tv_nsec >= 1000000000
> || abstime->tv_nsec < 0))
> return EINVAL;
>
> @@ -329,7 +331,7 @@ __pthread_rwlock_rdlock_full (pthread_rwlock_t *rwlock,
> {
> int private = __pthread_rwlock_get_private (rwlock);
> int err = futex_abstimed_wait (&rwlock->__data.__readers,
> - r, CLOCK_REALTIME, abstime, private);
> + r, clockid, abstime, private);
> /* We ignore EAGAIN and EINTR. On time-outs, we can just
> return because we don't need to clean up anything. */
> if (err == ETIMEDOUT)
> @@ -457,7 +459,7 @@ __pthread_rwlock_rdlock_full (pthread_rwlock_t *rwlock,
> continue;
> int err = futex_abstimed_wait (&rwlock->__data.__wrphase_futex,
> 1 | PTHREAD_RWLOCK_FUTEX_USED,
> - CLOCK_REALTIME, abstime, private);
> + clockid, abstime, private);
> if (err == ETIMEDOUT)
> {
> /* If we timed out, we need to unregister. If no read phase
> @@ -584,15 +586,17 @@ __pthread_rwlock_wrunlock (pthread_rwlock_t *rwlock)
>
> static __always_inline int
> __pthread_rwlock_wrlock_full (pthread_rwlock_t *rwlock,
> + clockid_t clockid,
> const struct timespec *abstime)
> {
> - /* Make sure any passed in timeout value is valid. Note that the previous
> - implementation assumed that this check *must* not be performed if there
> - would in fact be no blocking; however, POSIX only requires that "the
> - validity of the abstime parameter need not be checked if the lock can be
> - immediately acquired" (i.e., we need not but may check it). */
> - if (abstime
> - && __glibc_unlikely (abstime->tv_nsec >= 1000000000
> + /* Make sure any passed in clockid and timeout value are valid. Note
> + that the previous implementation assumed that this check *must*
> + not be performed if there would in fact be no blocking; however,
> + POSIX only requires that "the validity of the abstime parameter
> + need not be checked if the lock can be immediately acquired"
> + (i.e., we need not but may check it). */
> + if (abstime && __glibc_unlikely (!futex_abstimed_supported_clockid (clockid)
> + || abstime->tv_nsec >= 1000000000
> || abstime->tv_nsec < 0))
> return EINVAL;
>
> @@ -727,7 +731,7 @@ __pthread_rwlock_wrlock_full (pthread_rwlock_t *rwlock,
> may_share_futex_used_flag = true;
> int err = futex_abstimed_wait (&rwlock->__data.__writers_futex,
> 1 | PTHREAD_RWLOCK_FUTEX_USED,
> - CLOCK_REALTIME, abstime, private);
> + clockid, abstime, private);
> if (err == ETIMEDOUT)
> {
> if (prefer_writer)
> @@ -826,7 +830,7 @@ __pthread_rwlock_wrlock_full (pthread_rwlock_t *rwlock,
> continue;
> int err = futex_abstimed_wait (&rwlock->__data.__wrphase_futex,
> PTHREAD_RWLOCK_FUTEX_USED,
> - CLOCK_REALTIME, abstime, private);
> + clockid, abstime, private);
> if (err == ETIMEDOUT)
> {
> if (rwlock->__data.__flags != PTHREAD_RWLOCK_PREFER_READER_NP)
Ok.
> diff --git a/nptl/pthread_rwlock_rdlock.c b/nptl/pthread_rwlock_rdlock.c
> index 5fdc89e..387c824 100644
> --- a/nptl/pthread_rwlock_rdlock.c
> +++ b/nptl/pthread_rwlock_rdlock.c
> @@ -24,7 +24,7 @@ __pthread_rwlock_rdlock (pthread_rwlock_t *rwlock)
> {
> LIBC_PROBE (rdlock_entry, 1, rwlock);
>
> - int result = __pthread_rwlock_rdlock_full (rwlock, NULL);
> + int result = __pthread_rwlock_rdlock_full (rwlock, CLOCK_REALTIME, NULL);
> LIBC_PROBE (rdlock_acquire_read, 1, rwlock);
> return result;
> }
Ok.
> diff --git a/nptl/pthread_rwlock_timedrdlock.c b/nptl/pthread_rwlock_timedrdlock.c
> index 84c1983..8f8e680 100644
> --- a/nptl/pthread_rwlock_timedrdlock.c
> +++ b/nptl/pthread_rwlock_timedrdlock.c
> @@ -23,5 +23,5 @@ int
> pthread_rwlock_timedrdlock (pthread_rwlock_t *rwlock,
> const struct timespec *abstime)
> {
> - return __pthread_rwlock_rdlock_full (rwlock, abstime);
> + return __pthread_rwlock_rdlock_full (rwlock, CLOCK_REALTIME, abstime);
> }
Ok.
> diff --git a/nptl/pthread_rwlock_timedwrlock.c b/nptl/pthread_rwlock_timedwrlock.c
> index f0b745d..a5616de 100644
> --- a/nptl/pthread_rwlock_timedwrlock.c
> +++ b/nptl/pthread_rwlock_timedwrlock.c
> @@ -23,5 +23,5 @@ int
> pthread_rwlock_timedwrlock (pthread_rwlock_t *rwlock,
> const struct timespec *abstime)
> {
> - return __pthread_rwlock_wrlock_full (rwlock, abstime);
> + return __pthread_rwlock_wrlock_full (rwlock, CLOCK_REALTIME, abstime);
> }
Ok.
> diff --git a/nptl/pthread_rwlock_wrlock.c b/nptl/pthread_rwlock_wrlock.c
> index 194a14c..da246d8 100644
> --- a/nptl/pthread_rwlock_wrlock.c
> +++ b/nptl/pthread_rwlock_wrlock.c
> @@ -24,7 +24,7 @@ __pthread_rwlock_wrlock (pthread_rwlock_t *rwlock)
> {
> LIBC_PROBE (wrlock_entry, 1, rwlock);
>
> - int result = __pthread_rwlock_wrlock_full (rwlock, NULL);
> + int result = __pthread_rwlock_wrlock_full (rwlock, CLOCK_REALTIME, NULL);
> LIBC_PROBE (wrlock_acquire_write, 1, rwlock);
> return result;
> }
Ok.
> diff --git a/nptl/tst-abstime.c b/nptl/tst-abstime.c
> index 71610f8..f4c9f2d 100644
> --- a/nptl/tst-abstime.c
> +++ b/nptl/tst-abstime.c
> @@ -47,12 +47,40 @@ th (void *arg)
> puts ("pthread_rwlock_timedrdlock did not return ETIMEDOUT");
> res = 1;
> }
> + r = pthread_rwlock_clockrdlock (&rw1, CLOCK_REALTIME, &t);
> + if (r != ETIMEDOUT)
> + {
> + puts ("pthread_rwlock_clockrdlock (CLOCK_REALTIME) "
> + "did not return ETIMEDOUT");
> + res = 1;
> + }
> + r = pthread_rwlock_clockrdlock (&rw1, CLOCK_MONOTONIC, &t);
> + if (r != ETIMEDOUT)
> + {
> + puts ("pthread_rwlock_clockrdlock (CLOCK_MONOTONIC) "
> + "did not return ETIMEDOUT");
> + res = 1;
> + }
I prefer even new additions to old tests should use libsupport (it would
be preferable also to adapt old tests to libsupport in such cases).
Use
TEST_COMPARE (pthread_rwlock_clockrdlock (&rw1, CLOCK_REALTIME, &t),
ETIMEOUT);
and
TEST_COMPARE (pthread_rwlock_clockrdlock (&rw1, CLOCK_MONOTONIC, &t),
ETIMEOUT);
> r = pthread_rwlock_timedwrlock (&rw2, &t);
> if (r != ETIMEDOUT)
> {
> puts ("pthread_rwlock_timedwrlock did not return ETIMEDOUT");
> res = 1;
> }
> + r = pthread_rwlock_clockwrlock (&rw2, CLOCK_REALTIME, &t);
> + if (r != ETIMEDOUT)
> + {
> + puts ("pthread_rwlock_clockwrlock(CLOCK_REALTIME) "
> + "did not return ETIMEDOUT");
> + res = 1;
> + }
> + r = pthread_rwlock_clockwrlock (&rw2, CLOCK_MONOTONIC, &t);
> + if (r != ETIMEDOUT)
> + {
> + puts ("pthread_rwlock_clockwrlock(CLOCK_MONOTONIC) "
> + "did not return ETIMEDOUT");
> + res = 1;
> + }
> return (void *) res;
> }
>
Ditto.
> diff --git a/nptl/tst-rwlock14.c b/nptl/tst-rwlock14.c
> index 6f57169..525ceac 100644
> --- a/nptl/tst-rwlock14.c
> +++ b/nptl/tst-rwlock14.c
> @@ -91,6 +91,30 @@ do_test (void)
> result = 1;
> }
>
> + e = pthread_rwlock_clockrdlock (&r, CLOCK_REALTIME, &ts);
> + if (e == 0)
> + {
> + puts ("first rwlock_clockrdlock (CLOCK_REALTIME) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("first rwlock_clockrdlock (CLOCK_REALTIME) did not return EINVAL");
> + result = 1;
> + }
> +
> + e = pthread_rwlock_clockrdlock (&r, CLOCK_MONOTONIC, &ts);
> + if (e == 0)
> + {
> + puts ("first rwlock_clockrdlock (CLOCK_MONOTONIC) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("first rwlock_clockrdlock (CLOCK_MONOTONIC) did not return EINVAL");
> + result = 1;
> + }
> +
Ditto.
> e = pthread_rwlock_timedwrlock (&r, &ts);
> if (e == 0)
> {
> @@ -103,6 +127,30 @@ do_test (void)
> result = 1;
> }
>
> + e = pthread_rwlock_clockwrlock (&r, CLOCK_REALTIME, &ts);
> + if (e == 0)
> + {
> + puts ("first rwlock_clockwrlock (CLOCK_REALTIME) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("first rwlock_clockwrlock (CLOCK_REALTIME) did not return EINVAL");
> + result = 1;
> + }
> +
> + e = pthread_rwlock_clockwrlock (&r, CLOCK_MONOTONIC, &ts);
> + if (e == 0)
> + {
> + puts ("first rwlock_clockwrlock (CLOCK_MONOTONIC) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("first rwlock_clockwrlock (CLOCK_MONOTONIC) did not return EINVAL");
> + result = 1;
> + }
> +
Ditto.
> ts.tv_nsec = 1000000000;
>
> e = pthread_rwlock_timedrdlock (&r, &ts);
> @@ -117,6 +165,31 @@ do_test (void)
> result = 1;
> }
>
> + e = pthread_rwlock_clockrdlock (&r, CLOCK_REALTIME, &ts);
> + if (e == 0)
> + {
> + puts ("second rwlock_clockrdlock (CLOCK_REALTIME) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("second rwlock_clockrdlock (CLOCK_REALTIME) did not return EINVAL");
> + result = 1;
> + }
> +
> + e = pthread_rwlock_clockrdlock (&r, CLOCK_MONOTONIC, &ts);
> + if (e == 0)
> + {
> + puts ("second rwlock_clockrdlock (CLOCK_MONOTONIC) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("second rwlock_clockrdlock (CLOCK_MONOTONIC) "
> + "did not return EINVAL");
> + result = 1;
> + }
> +
Ditto.
> e = pthread_rwlock_timedwrlock (&r, &ts);
> if (e == 0)
> {
> @@ -129,6 +202,32 @@ do_test (void)
> result = 1;
> }
>
> + e = pthread_rwlock_clockwrlock (&r, CLOCK_MONOTONIC, &ts);
> + if (e == 0)
> + {
> + puts ("second rwlock_clockwrlock (CLOCK_MONOTONIC) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("second rwlock_clockwrlock (CLOCK_MONOTONIC) "
> + "did not return EINVAL");
> + result = 1;
> + }
> +
> + e = pthread_rwlock_clockwrlock (&r, CLOCK_REALTIME, &ts);
> + if (e == 0)
> + {
> + puts ("second rwlock_clockwrlock (CLOCK_REALTIME) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("second rwlock_clockwrlock (CLOCK_REALTIME) "
> + "did not return EINVAL");
> + result = 1;
> + }
> +
Ditto.
> ts.tv_nsec = (__typeof (ts.tv_nsec)) 0x100001000LL;
> if ((__typeof (ts.tv_nsec)) 0x100001000LL != 0x100001000LL)
> ts.tv_nsec = 2000000000;
> @@ -145,6 +244,30 @@ do_test (void)
> result = 1;
> }
>
> + e = pthread_rwlock_clockrdlock (&r, CLOCK_REALTIME, &ts);
> + if (e == 0)
> + {
> + puts ("third rwlock_clockrdlock (CLOCK_REALTIME) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("third rwlock_clockrdlock (CLOCK_REALTIME) did not return EINVAL");
> + result = 1;
> + }
> +
> + e = pthread_rwlock_clockrdlock (&r, CLOCK_MONOTONIC, &ts);
> + if (e == 0)
> + {
> + puts ("third rwlock_clockrdlock(CLOCK_MONOTONIC) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("third rwlock_clockrdlock (CLOCK_MONOTONIC) did not return EINVAL");
> + result = 1;
> + }
> +
> e = pthread_rwlock_timedwrlock (&r, &ts);
> if (e == 0)
> {
> @@ -157,6 +280,30 @@ do_test (void)
> result = 1;
> }
>
Ditto.
> + e = pthread_rwlock_clockwrlock (&r, CLOCK_REALTIME, &ts);
> + if (e == 0)
> + {
> + puts ("third rwlock_clockwrlock (CLOCK_REALTIME) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("third rwlock_clockwrlock (CLOCK_REALTIME) did not return EINVAL");
> + result = 1;
> + }
> +
> + e = pthread_rwlock_clockwrlock (&r, CLOCK_MONOTONIC, &ts);
> + if (e == 0)
> + {
> + puts ("third rwlock_clockwrlock (CLOCK_MONOTONIC) did not fail");
> + result = 1;
> + }
> + else if (e != EINVAL)
> + {
> + puts ("third rwlock_clockwrlock (CLOCK_MONOTONIC) did not return EINVAL");
> + result = 1;
> + }
> +
Ditto.
> if (result == 0)
> puts ("no bugs");
>
> diff --git a/nptl/tst-rwlock6.c b/nptl/tst-rwlock6.c
> index 67119fa..708915e 100644
> --- a/nptl/tst-rwlock6.c
> +++ b/nptl/tst-rwlock6.c
> @@ -25,6 +25,11 @@
> #include <support/timespec.h>
>
>
> +/* A bogus clock value that tells run_test to use
> + pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock rather
> + than pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock. */
> +#define CLOCK_USE_TIMEDLOCK (-1)
> +
> static int kind[] =
> {
> PTHREAD_RWLOCK_PREFER_READER_NP,
> @@ -32,75 +37,91 @@ static int kind[] =
> PTHREAD_RWLOCK_PREFER_WRITER_NP,
> };
>
> +struct thread_args {
> + pthread_rwlock_t *rwlock;
> + clockid_t clockid;
> + const char *fnname;
> +};
Line-feed before open bracket.
>
> static void *
> tf (void *arg)
> {
> - pthread_rwlock_t *r = arg;
> + struct thread_args *args = arg;
> + pthread_rwlock_t *r = args->rwlock;
> + const clockid_t clockid = args->clockid;
> + const clockid_t clockid_for_get =
> + (clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid;
> + const char *fnname = args->fnname;
>
> /* Timeout: 0.3 secs. */
> struct timespec ts_start;
> - (void) clock_gettime(CLOCK_REALTIME, &ts_start);
> + (void) clock_gettime (clockid_for_get, &ts_start);
>
> struct timespec ts_timeout = {0, 300000000};
> - timespec_add(&ts_timeout, &ts_start, &ts_timeout);
> + timespec_add (&ts_timeout, &ts_start, &ts_timeout);
>
> - puts ("child calling timedrdlock");
> + printf ("child calling %srdlock\n", fnname);
>
> - int err = pthread_rwlock_timedrdlock (r, &ts_timeout);
> + int err = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedrdlock (r, &ts_timeout)
> + : pthread_rwlock_clockrdlock (r, clockid, &ts_timeout);
> if (err == 0)
> {
> - puts ("rwlock_timedrdlock returned");
> + printf ("%srdlock returned\n", fnname);
> pthread_exit ((void *) 1l);
> }
>
> if (err != ETIMEDOUT)
> {
> - printf ("err = %s (%d), expected %s (%d)\n",
> - strerror (err), err, strerror (ETIMEDOUT), ETIMEDOUT);
> + printf ("%srdlock: err = %s (%d), expected %s (%d)\n",
> + fnname, strerror (err), err, strerror (ETIMEDOUT), ETIMEDOUT);
> pthread_exit ((void *) 1l);
> }
>
> - puts ("1st child timedrdlock done");
> + printf ("1st child %srdlock done\n", fnname);
>
> struct timespec ts_end;
> - (void) clock_gettime (CLOCK_REALTIME, &ts_end);
> + (void) clock_gettime (clockid_for_get, &ts_end);
>
> struct timespec ts_duration;
> - timespec_sub(&ts_duration, &ts_end, &ts_start);
> + timespec_sub (&ts_duration, &ts_end, &ts_start);
>
> if (ts_duration.tv_sec !=0 || ts_duration.tv_nsec < 200000000)
> {
> - puts ("timeout too short");
> + printf ("%srdlock: timeout too short\n", fnname);
> pthread_exit ((void *) 1l);
> }
>
> - (void) clock_gettime (CLOCK_REALTIME, &ts_timeout);
> + (void) clock_gettime (clockid_for_get, &ts_timeout);
> ts_timeout.tv_sec += 10;
> /* Note that the following operation makes ts invalid. */
> ts_timeout.tv_nsec += 1000000000;
>
> - err = pthread_rwlock_timedrdlock (r, &ts_timeout);
> + err = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedrdlock (r, &ts_timeout)
> + : pthread_rwlock_clockrdlock (r, clockid, &ts_timeout);
> if (err == 0)
> {
> - puts ("2nd timedrdlock succeeded");
> + printf ("2nd %srdlock succeeded\n", fnname);
> pthread_exit ((void *) 1l);
> }
> if (err != EINVAL)
> {
> - puts ("2nd timedrdlock did not return EINVAL");
> + printf ("2nd %srdlock did not return EINVAL\n", fnname);
> pthread_exit ((void *) 1l);
> }
>
> - puts ("2nd child timedrdlock done");
> + printf ("2nd child %srdlock done\n", fnname);
>
> return NULL;
> }
>
>
> static int
> -do_test (void)
> +do_test_clock (clockid_t clockid, const char *fnname)
> {
> + const clockid_t clockid_for_get =
> + (clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid;
> size_t cnt;
> for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt)
> {
> @@ -132,53 +153,63 @@ do_test (void)
> }
>
> struct timespec ts;
> - (void) clock_gettime (CLOCK_REALTIME, &ts);
> + (void) clock_gettime (clockid_for_get, &ts);
> ++ts.tv_sec;
>
> /* Get a write lock. */
> - int e = pthread_rwlock_timedwrlock (&r, &ts);
> + int e = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedwrlock (&r, &ts)
> + : pthread_rwlock_clockwrlock (&r, clockid, &ts);
> if (e != 0)
> {
> - printf ("round %Zu: rwlock_timedwrlock failed (%d)\n", cnt, e);
> + printf ("round %Zu: %swrlock failed (%d)\n", cnt, fnname, e);
> exit (1);
> }
>
> - puts ("1st timedwrlock done");
> + printf ("1st %swrlock done\n", fnname);
>
> - (void) clock_gettime (CLOCK_REALTIME, &ts);
> + (void) clock_gettime (clockid, &ts);
> ++ts.tv_sec;
> - e = pthread_rwlock_timedrdlock (&r, &ts);
> + e = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedrdlock (&r, &ts)
> + : pthread_rwlock_clockrdlock (&r, clockid, &ts);
> if (e == 0)
> {
> - puts ("timedrdlock succeeded");
> + printf ("%srdlock succeeded\n", fnname);
> exit (1);
> }
> if (e != EDEADLK)
> {
> - puts ("timedrdlock did not return EDEADLK");
> + printf ("%srdlock did not return EDEADLK\n", fnname);
> exit (1);
> }
>
> - puts ("1st timedrdlock done");
> + printf ("1st %srdlock done\n", fnname);
>
> - (void) clock_gettime (CLOCK_REALTIME, &ts);
> + (void) clock_gettime (clockid_for_get, &ts);
> ++ts.tv_sec;
> - e = pthread_rwlock_timedwrlock (&r, &ts);
> + e = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedwrlock (&r, &ts)
> + : pthread_rwlock_clockwrlock (&r, clockid, &ts);
> if (e == 0)
> {
> - puts ("2nd timedwrlock succeeded");
> + printf ("2nd %swrlock succeeded\n", fnname);
> exit (1);
> }
> if (e != EDEADLK)
> {
> - puts ("2nd timedwrlock did not return EDEADLK");
> + printf ("2nd %swrlock did not return EDEADLK\n", fnname);
> exit (1);
> }
>
> - puts ("2nd timedwrlock done");
> + printf ("2nd %swrlock done\n", fnname);
>
> pthread_t th;
> - if (pthread_create (&th, NULL, tf, &r) != 0)
> + struct thread_args args;
> + args.rwlock = &r;
> + args.clockid = clockid;
> + args.fnname = fnname;
> + if (pthread_create (&th, NULL, tf, &args) != 0)
> {
> printf ("round %Zu: create failed\n", cnt);
> exit (1);
> @@ -210,5 +241,13 @@ do_test (void)
> return 0;
> }
>
> +static int do_test (void)
> +{
> + do_test_clock (CLOCK_USE_TIMEDLOCK, "timed");
> + do_test_clock (CLOCK_REALTIME, "clock(realtime)");
> + do_test_clock (CLOCK_MONOTONIC, "clock(monotonic)");
> + return 0;
> +}
> +
> #define TEST_FUNCTION do_test ()
> #include "../test-skeleton.c"
> diff --git a/nptl/tst-rwlock7.c b/nptl/tst-rwlock7.c
> index 812506c..0bccd18 100644
> --- a/nptl/tst-rwlock7.c
> +++ b/nptl/tst-rwlock7.c
> @@ -25,6 +25,11 @@
> #include <support/timespec.h>
>
>
> +/* A bogus clock value that tells run_test to use
> + pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock rather
> + than pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock. */
> +#define CLOCK_USE_TIMEDLOCK (-1)
> +
> static int kind[] =
> {
> PTHREAD_RWLOCK_PREFER_READER_NP,
> @@ -32,22 +37,34 @@ static int kind[] =
> PTHREAD_RWLOCK_PREFER_WRITER_NP,
> };
>
> +struct thread_args
> +{
> + pthread_rwlock_t *rwlock;
> + clockid_t clockid;
> + const char *fnname;
> +};
>
> static void *
> tf (void *arg)
> {
> - pthread_rwlock_t *r = arg;
> + struct thread_args *args = arg;
> + pthread_rwlock_t *r = args->rwlock;
> + clockid_t clockid = args->clockid;
> + const char *fnname = args->fnname;
>
> /* Timeout: 0.3 secs. */
> struct timespec ts_start;
> - (void) clock_gettime (CLOCK_REALTIME, &ts_start);
> + (void) clock_gettime ((clockid == CLOCK_USE_TIMEDLOCK)
> + ? CLOCK_REALTIME : clockid, &ts_start);
> struct timespec ts_timeout = {0, 300000000};
> timespec_add(&ts_timeout, &ts_start, &ts_timeout);
>
> - int err = pthread_rwlock_timedwrlock (r, &ts_timeout);
> + int err = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedwrlock (r, &ts_timeout)
> + : pthread_rwlock_clockwrlock (r, clockid, &ts_timeout);
> if (err == 0)
> {
> - puts ("rwlock_timedwrlock returned");
> + printf ("pthread_rwlock_%swrlock returned\n", fnname);
> pthread_exit ((void *) 1l);
> }
>
> @@ -57,44 +74,49 @@ tf (void *arg)
> strerror (err), err, strerror (ETIMEDOUT), ETIMEDOUT);
> pthread_exit ((void *) 1l);
> }
> - puts ("child: timedwrlock failed with ETIMEDOUT");
> + printf ("child: pthread_rwlock_%swrlock failed with ETIMEDOUT\n", fnname);
>
> struct timespec ts_end;
> - (void) clock_gettime (CLOCK_REALTIME, &ts_end);
> + (void) clock_gettime ((clockid == CLOCK_USE_TIMEDLOCK)
> + ? CLOCK_REALTIME : clockid, &ts_end);
> struct timespec ts_diff;
> timespec_sub (&ts_diff, &ts_end, &ts_start);
>
> if (ts_diff.tv_sec != 0 || ts_diff.tv_nsec < 200000000)
> {
> - puts ("timeout too short");
> + printf ("pthread_rwlock_%srwlock timeout too short: %ld.%09ld\n",
> + fnname, (long)ts_diff.tv_sec, (long)ts_diff.tv_nsec);
> pthread_exit ((void *) 1l);
> }
>
> struct timespec ts_invalid;
> - (void) clock_gettime (CLOCK_REALTIME, &ts_invalid);
> + (void) clock_gettime ((clockid == CLOCK_USE_TIMEDLOCK)
> + ? CLOCK_REALTIME : clockid, &ts_invalid);
> ts_invalid.tv_sec += 10;
> /* Note that the following operation makes ts invalid. */
> ts_invalid.tv_nsec += 1000000000000;
>
> - err = pthread_rwlock_timedwrlock (r, &ts_invalid);
> + err = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedwrlock (r, &ts_invalid)
> + : pthread_rwlock_clockwrlock (r, clockid, &ts_invalid);
> if (err == 0)
> {
> - puts ("2nd timedwrlock succeeded");
> + printf ("2nd pthread_%srwlock succeeded\n", fnname);
> pthread_exit ((void *) 1l);
> }
> if (err != EINVAL)
> {
> - puts ("2nd timedwrlock did not return EINVAL");
> + printf ("2nd pthread_%srwlock did not return EINVAL\n", fnname);
> pthread_exit ((void *) 1l);
> }
> - puts ("child: timedwrlock failed with EINVAL");
> + printf ("child: %s failed with EINVAL\n", fnname);
>
> return NULL;
> }
>
>
> static int
> -do_test (void)
> +do_test_clock (clockid_t clockid, const char *fnname)
> {
> size_t cnt;
> for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt)
> @@ -127,20 +149,27 @@ do_test (void)
> }
>
> struct timespec ts;
> - (void) clock_gettime (CLOCK_REALTIME, &ts);
> + (void) clock_gettime ((clockid == CLOCK_USE_TIMEDLOCK) ?
> + CLOCK_REALTIME: clockid, &ts);
>
> ++ts.tv_sec;
>
> /* Get a read lock. */
> - if (pthread_rwlock_timedrdlock (&r, &ts) != 0)
> + if ((clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedrdlock (&r, &ts)
> + : pthread_rwlock_clockrdlock (&r, clockid, &ts) != 0)
> {
> - printf ("round %Zu: rwlock_timedrdlock failed\n", cnt);
> + printf ("round %Zu: pthread_rwlock%srdlock failed\n", cnt, fnname);
> exit (1);
> }
> - printf ("%zu: got timedrdlock\n", cnt);
> + printf ("%zu: got pthread_rwlock_%srdlock\n", cnt, fnname);
>
> + struct thread_args args;
> + args.rwlock = &r;
> + args.clockid = clockid;
> + args.fnname = fnname;
> pthread_t th;
> - if (pthread_create (&th, NULL, tf, &r) != 0)
> + if (pthread_create (&th, NULL, tf, &args) != 0)
> {
> printf ("round %Zu: create failed\n", cnt);
> exit (1);
> @@ -168,5 +197,15 @@ do_test (void)
> return 0;
> }
>
> +static int
> +do_test (void)
> +{
> + do_test_clock (CLOCK_USE_TIMEDLOCK, "timed");
> + do_test_clock (CLOCK_MONOTONIC, "clock(monotonic)");
> + do_test_clock (CLOCK_REALTIME, "clock(realtime)");
> +
> + return 0;
> +}
> +
> #define TEST_FUNCTION do_test ()
> #include "../test-skeleton.c"
> diff --git a/nptl/tst-rwlock9.c b/nptl/tst-rwlock9.c
> index ff15f90..2691f6a 100644
> --- a/nptl/tst-rwlock9.c
> +++ b/nptl/tst-rwlock9.c
> @@ -38,12 +38,28 @@
> # define KIND PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP
> #endif
>
> +/* A bogus clock value that tells the tests to use
> + pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock rather
> + than pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock. */
> +#define CLOCK_USE_TIMEDLOCK (-1)
> +
> static pthread_rwlock_t lock;
>
> +struct thread_args
> +{
> + int nr;
> + clockid_t clockid;
> + const char *fnname;
> +};
>
> static void *
> -writer_thread (void *nr)
> +writer_thread (void *arg)
> {
> + struct thread_args *args = arg;
> + const int nr = args->nr;
> + const clockid_t clockid = args->clockid;
> + const char *fnname = args->fnname;
> +
> struct timespec ts;
> struct timespec delay;
> int n;
> @@ -56,7 +72,8 @@ writer_thread (void *nr)
> int e;
> do
> {
> - (void) clock_gettime (CLOCK_REALTIME, &ts);
> + (void) clock_gettime ((clockid == CLOCK_USE_TIMEDLOCK)
> + ? CLOCK_REALTIME : clockid, &ts);
>
> ts.tv_nsec += 2 * TIMEOUT;
> if (ts.tv_nsec >= 1000000000)
> @@ -65,18 +82,20 @@ writer_thread (void *nr)
> ++ts.tv_sec;
> }
>
> - printf ("writer thread %ld tries again\n", (long int) nr);
> + printf ("writer thread %d tries again\n", nr);
>
> - e = pthread_rwlock_timedwrlock (&lock, &ts);
> + e = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedwrlock (&lock, &ts)
> + : pthread_rwlock_clockwrlock (&lock, clockid, &ts);
> if (e != 0 && e != ETIMEDOUT)
> {
> - puts ("timedwrlock failed");
> + printf ("%swrlock failed", fnname);
> exit (1);
> }
> }
> while (e == ETIMEDOUT);
>
> - printf ("writer thread %ld succeeded\n", (long int) nr);
> + printf ("writer thread %d succeeded\n", nr);
>
> nanosleep (&delay, NULL);
>
> @@ -86,7 +105,7 @@ writer_thread (void *nr)
> exit (1);
> }
>
> - printf ("writer thread %ld released\n", (long int) nr);
> + printf ("writer thread %d released\n", nr);
> }
>
> return NULL;
> @@ -94,8 +113,13 @@ writer_thread (void *nr)
>
>
> static void *
> -reader_thread (void *nr)
> +reader_thread (void *arg)
> {
> + struct thread_args *args = arg;
> + const int nr = args->nr;
> + const clockid_t clockid = args->clockid;
> + const char *fnname = args->fnname;
> +
> struct timespec ts;
> struct timespec delay;
> int n;
> @@ -108,8 +132,8 @@ reader_thread (void *nr)
> int e;
> do
> {
> - (void) clock_gettime (CLOCK_REALTIME, &ts);
> -
> + (void) clock_gettime ((clockid == CLOCK_USE_TIMEDLOCK)
> + ? CLOCK_REALTIME : clockid, &ts);
> ts.tv_nsec += TIMEOUT;
> if (ts.tv_nsec >= 1000000000)
> {
> @@ -117,18 +141,20 @@ reader_thread (void *nr)
> ++ts.tv_sec;
> }
>
> - printf ("reader thread %ld tries again\n", (long int) nr);
> + printf ("reader thread %d tries again\n", nr);
>
> - e = pthread_rwlock_timedrdlock (&lock, &ts);
> + e = (clockid == CLOCK_USE_TIMEDLOCK)
> + ? pthread_rwlock_timedrdlock (&lock, &ts)
> + : pthread_rwlock_clockrdlock (&lock, clockid, &ts);
> if (e != 0 && e != ETIMEDOUT)
> {
> - puts ("timedrdlock failed");
> + printf ("%srdlock failed\n", fnname);
> exit (1);
> }
> }
> while (e == ETIMEDOUT);
>
> - printf ("reader thread %ld succeeded\n", (long int) nr);
> + printf ("reader thread %d succeeded\n", nr);
>
> nanosleep (&delay, NULL);
>
> @@ -138,7 +164,7 @@ reader_thread (void *nr)
> exit (1);
> }
>
> - printf ("reader thread %ld released\n", (long int) nr);
> + printf ("reader thread %d released\n", nr);
> }
>
> return NULL;
> @@ -146,7 +172,7 @@ reader_thread (void *nr)
>
>
> static int
> -do_test (void)
> +do_test_clock (clockid_t clockid, const char *fnname)
> {
> pthread_t thwr[NWRITERS];
> pthread_t thrd[NREADERS];
> @@ -178,21 +204,31 @@ do_test (void)
> /* Make sure we see all message, even those on stdout. */
> setvbuf (stdout, NULL, _IONBF, 0);
>
> - for (n = 0; n < NWRITERS; ++n)
> + struct thread_args wargs[NWRITERS];
> + for (n = 0; n < NWRITERS; ++n) {
> + wargs[n].nr = n;
> + wargs[n].clockid = clockid;
> + wargs[n].fnname = fnname;
> if (pthread_create (&thwr[n], NULL, writer_thread,
> - (void *) (long int) n) != 0)
> + &wargs[n]) != 0)
> {
> puts ("writer create failed");
> exit (1);
> }
> + }
>
> - for (n = 0; n < NREADERS; ++n)
> + struct thread_args rargs[NREADERS];
> + for (n = 0; n < NREADERS; ++n) {
> + rargs[n].nr = n;
> + rargs[n].clockid = clockid;
> + rargs[n].fnname = fnname;
> if (pthread_create (&thrd[n], NULL, reader_thread,
> - (void *) (long int) n) != 0)
> + &rargs[n]) != 0)
> {
> puts ("reader create failed");
> exit (1);
> }
> + }
>
> /* Wait for all the threads. */
> for (n = 0; n < NWRITERS; ++n)
> @@ -211,6 +247,16 @@ do_test (void)
> return 0;
> }
>
> +static int
> +do_test (void)
> +{
> + do_test_clock (CLOCK_USE_TIMEDLOCK, "timed");
> + do_test_clock (CLOCK_REALTIME, "clock(realtime)");
> + do_test_clock (CLOCK_MONOTONIC, "clock(monotonic)");
> +
> + return 0;
> +}
> +
> #undef TIMEOUT
> #define TIMEOUT 30
> #define TEST_FUNCTION do_test ()
> diff --git a/sysdeps/nptl/pthread.h b/sysdeps/nptl/pthread.h
> index d4fe9d9..3c06d77 100644
> --- a/sysdeps/nptl/pthread.h
> +++ b/sysdeps/nptl/pthread.h
> @@ -907,6 +907,10 @@ extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
> extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
> const struct timespec *__restrict
> __abstime) __THROWNL __nonnull ((1, 2));
> +extern int pthread_rwlock_clockrdlock (pthread_rwlock_t *__restrict __rwlock,
> + clockid_t __clockid,
> + const struct timespec *__restrict
> + __abstime) __THROWNL __nonnull ((1, 3));
> # endif
>
> /* Acquire write lock for RWLOCK. */
> @@ -922,6 +926,10 @@ extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
> extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
> const struct timespec *__restrict
> __abstime) __THROWNL __nonnull ((1, 2));
> +extern int pthread_rwlock_clockwrlock (pthread_rwlock_t *__restrict __rwlock,
> + clockid_t __clockid,
> + const struct timespec *__restrict
> + __abstime) __THROWNL __nonnull ((1, 3));
> # endif
>
> /* Unlock RWLOCK. */
> diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
> index aaa1c3b..70f04cc 100644
> --- a/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
> +++ b/sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
> @@ -246,6 +246,8 @@ GLIBC_2.3.4 pthread_getaffinity_np F
> GLIBC_2.3.4 pthread_setaffinity_np F
> GLIBC_2.3.4 pthread_setschedprio F
> GLIBC_2.30 pthread_cond_clockwait F
> +GLIBC_2.30 pthread_rwlock_clockrdlock F
> +GLIBC_2.30 pthread_rwlock_clockwrlock F
> GLIBC_2.30 sem_clockwait F
> GLIBC_2.4 pthread_mutex_consistent_np F
> GLIBC_2.4 pthread_mutex_getprioceiling F
>