urcu.git
5 years agoFix: provide errno as argument to urcu_die()
Mathieu Desnoyers [Thu, 19 Sep 2019 14:10:31 +0000 (10:10 -0400)] 
Fix: provide errno as argument to urcu_die()

commit 1a990de3add "Fix: rculfhash worker needs to unblock to SIGRCU"
provides "ret" (-1) as argument to urcu_die(), but should rather provide
errno.

Reported by Coverity:

** CID 1405700:  Error handling issues  (NEGATIVE_RETURNS) /src/rculfhash.c: 2171 in cds_lfht_worker_init()

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: include urcu-signal-nr.h
Mathieu Desnoyers [Wed, 18 Sep 2019 15:13:24 +0000 (11:13 -0400)] 
Fix: include urcu-signal-nr.h

Erroneous include file name in backport of commit 1a990de3add
"Fix: rculfhash worker needs to unblock to SIGRCU".

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: rculfhash worker needs to unblock to SIGRCU
hewenliang [Tue, 17 Sep 2019 14:59:18 +0000 (10:59 -0400)] 
Fix: rculfhash worker needs to unblock to SIGRCU

In urcu-signal flavor, call_rcu_thread calls synchronize_rcu which
will send SIGRCU signal to all registed threads, and then loops to
wait need_mb to be cleared. However, the registed workqueue_thread
does not process the SIGRCU signal, and never clear the need_mb.
Based on above, call_rcu_thread and workqueue_thread will wait
forever for completion of the grace period: call_rcu_thread which holds
the rcu_registry_lock, waits for workqueue_thread to do cmm_smp_mb.
While workqueue thread never does cmm_smp_mb because of signal blocking,
and it will eventually wait to get rcu_registry_lock in do_resize_cb.

The phenomenon is as follows, which is easy to be triggered:

(gdb) t 2
[Switching to thread 2 (Thread 0xffff83c3b080 (LWP 27116))]
0  0x0000ffff845296c4 in poll () from /lib64/libc.so.6
(gdb) bt
0 0x0000ffff845296c4 in poll () from /lib64/libc.so.6
1 0x0000ffff8461b93c in force_mb_all_readers () at urcu.c:241
2 0x0000ffff8461c748 in smp_mb_master () at urcu.c:249
3 urcu_signal_synchronize_rcu () at urcu.c:445
4 0x0000ffff8461d004 in call_rcu_thread  at urcu-call-rcu-impl.h:364
5 0x0000ffff845eb8bc in start_thread () from /lib64/libpthread.so.0
6 0x0000ffff845335cc in thread_start () from /lib64/libc.so.6
(gdb) t 3
[Switching to thread 3 (Thread 0xffff8443c080 (LWP 27191))]
0 0x0000ffff845f51c4 in __lll_lock_wait () from /lib64/libpthread.so.0
(gdb) bt
0 0x0000ffff845f51c4 in __lll_lock_wait () from /lib64/libpthread.so.0
1 0x0000ffff845ee048 in pthread_mutex_lock () from /lib64/libpthread.so.0
2 0x0000ffff8461b814 in mutex_lock ( <rcu_registry_lock>) at urcu.c:157
3 0x0000ffff8461b9e4 in urcu_signal_unregister_thread () at urcu.c:564
4 0x0000ffff8463e62c in do_resize_cb (work=0x11e2e790) at rculfhash.c:2042
5 0x0000ffff8463c940 in workqueue_thread (arg=0x11e1d260) at workqueue.c:228
6 0x0000ffff845eb8bc in start_thread () from /lib64/libpthread.so.0
7 0x0000ffff845335cc in thread_start () from /lib64/libc.so.6

So we should not block SIGRCU in workqueue thread to avoid blocking
forever in the grace period awaiting on the worker thread when using
urcu-signal flavor.

Signed-off-by: hewenliang <hewenliang4@huawei.com>
Co-developed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
5 years agoFix: urcu/futex.h: users of struct timespec should include time.h
Mathieu Desnoyers [Mon, 27 May 2019 15:50:20 +0000 (11:50 -0400)] 
Fix: urcu/futex.h: users of struct timespec should include time.h

Fixes: #1187
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoCleanup: update code layout to fix old gcc warning
Mathieu Desnoyers [Mon, 6 May 2019 13:56:19 +0000 (09:56 -0400)] 
Cleanup: update code layout to fix old gcc warning

Some CI jobs show:

urcu-pointer.o
13:46:22 In file included from urcu.c:49:0:
13:46:22 urcu-wait.h:70:9: warning: missing initializer for field 'lock' of 'struct cds_wfs_stack' [-Wmissing-field-initializers]
13:46:22   struct urcu_wait_queue name = URCU_WAIT_QUEUE_HEAD_INIT(name)
13:46:22          ^
13:46:22 urcu.c:150:8: note: in expansion of macro 'DEFINE_URCU_WAIT_QUEUE'
13:46:22  static DEFINE_URCU_WAIT_QUEUE(gp_waiters);
13:46:22         ^
13:46:22 In file included from urcu-wait.h:27:0,
13:46:22                  from urcu.c:49:
13:46:22 ../include/urcu/wfstack.h:92:18: note: 'lock' declared here
13:46:22   pthread_mutex_t lock;
13:46:22

Change code layout so not to confuse old gcc.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: typo CPPLAGS in examples Makefile
Michael Jeanson [Mon, 22 Apr 2019 16:04:04 +0000 (12:04 -0400)] 
Fix: typo CPPLAGS in examples Makefile

Overriding CPPFLAGS throught the environment was ignored for the
examples.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoUpdate dead link in lgpl-relicensing.txt
Michael Jeanson [Thu, 7 Mar 2019 20:53:54 +0000 (15:53 -0500)] 
Update dead link in lgpl-relicensing.txt

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoVersion 0.10.2 v0.10.2
Mathieu Desnoyers [Mon, 14 Jan 2019 18:59:10 +0000 (10:59 -0800)] 
Version 0.10.2

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: only wait if work queue is empty in real-time mode
Jérémie Galarneau [Fri, 7 Dec 2018 22:06:39 +0000 (17:06 -0500)] 
Fix: only wait if work queue is empty in real-time mode

Unconditionally waiting for 10 ms after the completion of every batch
of jobs of the work queue in real-time mode appears to be a behaviour
inherited from the call-rcu thread.

While this is a fair trade-off in the context of call-rcu, it is less
evident that it is desirable in the context of a general-purpose
work queue. Waiting when work is available artificially degrades the
latency characteristics of the work queue.

If a workqueue user even need the explicit delay for batching (e.g. if
a call-rcu implementation would ever use the workqueue worker thread),
it can add it within the worker_before_wait_fct callback received as
argument from workqueue creation.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: don't wait after completion of a work queue job batch
Jérémie Galarneau [Fri, 7 Dec 2018 22:06:38 +0000 (17:06 -0500)] 
Fix: don't wait after completion of a work queue job batch

As indicated in the previous patch of this series, waiting on
completion of a job batch from the work queue artificially increases
the latency of the work queue.

The previous patch removed the wait that is performed when the
work queue is observed to be empty and was observed as the cause of a
performance problem.

It is likely that waiting when the queue is observed to be non-empty
is similarly unintended. Note that I have not observed such a problem
myself.

If a workqueue user even need the explicit delay for batching (e.g. if
a call-rcu implementation would ever use the workqueue worker thread),
it can add it within the worker_before_wait_fct callback received as
argument from workqueue creation.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: don't wait after completion of job batch if work queue is empty
Jérémie Galarneau [Fri, 7 Dec 2018 22:06:37 +0000 (17:06 -0500)] 
Fix: don't wait after completion of job batch if work queue is empty

On completion of a batch of jobs from the work queue, a wait of 10
ms (using poll()) is performed if there is no work present in the
work queue before waiting on its futex.

The work queue thread's structure is inspired by the call-rcu thread.
In the context of the call-rcu thread, my understanding is that the
intention is to ensure that the thread does not continuously wake-up
to process a single queued item. This is fine as an application should
not wait for a call-rcu job to be executed (or at least I don't see a
use-case for that).

In the context of the work queue, waiting for more work to be available
artificially slows down the execution of work on which an application
may wait.

I have observed a case where LTTng's session daemon's shutdown is
takes around 4 seconds as a large number of cds_lfht objects are
destroyed. Removing the wait reduces the duration of this phase of the
shut-down to almost ~10ms.

If a workqueue user even need the explicit delay for batching (e.g. if
a call-rcu implementation would ever use the workqueue worker thread),
it can add it within the worker_before_wait_fct callback received as
argument from workqueue creation.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: workqueue: struct urcu_work vs rcu_head mixup
Mathieu Desnoyers [Sun, 9 Dec 2018 11:37:09 +0000 (06:37 -0500)] 
Fix: workqueue: struct urcu_work vs rcu_head mixup

The workqueue code was derived from call-rcu, and its API
expects a struct urcu_work for work items, but it internally iterates
over struct rcu_head.

This is not an issue at runtime because both structures have the
exact same layout and content, but it is a type mixup nevertheless.

Use the right type in the implementation.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoCleanup: workqueue: update comments referring to call-rcu
Mathieu Desnoyers [Sun, 9 Dec 2018 11:31:57 +0000 (06:31 -0500)] 
Cleanup: workqueue: update comments referring to call-rcu

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 years agoFix: mixup between URCU_WORKQUEUE_RT and URCU_CALL_RCU_RT
Jérémie Galarneau [Fri, 7 Dec 2018 22:06:36 +0000 (17:06 -0500)] 
Fix: mixup between URCU_WORKQUEUE_RT and URCU_CALL_RCU_RT

The work queue implementation is derived from the call-rcu thread. A
number of references seem to have been left in place when adapting the
code for its new purpose.

The URCU_CALL_RCU_RT flag is used by wake_worker_thread() while the
rest of the workqueue.c code uses URCU_WORKQUEUE_RT to determine if
the work queue was configured in real-time mode. Both flags are defined
to the same value (0x1) and the current internal user of the
work queue (lfht) never specifies any flags.

In practice, this does not cause any problem, but this mixup should
be fixed nevertheless.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 years agotest_rwlock: Add per-thread count to verbose output
Michael Jeanson [Fri, 23 Nov 2018 20:27:07 +0000 (15:27 -0500)] 
test_rwlock: Add per-thread count to verbose output

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 years agoAdd *.exe to gitignore for Cygwin
Michael Jeanson [Fri, 23 Nov 2018 20:27:06 +0000 (15:27 -0500)] 
Add *.exe to gitignore for Cygwin

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 years agoFix: pthread_rwlock initialization on Cygwin
Michael Jeanson [Fri, 23 Nov 2018 21:47:18 +0000 (16:47 -0500)] 
Fix: pthread_rwlock initialization on Cygwin

On Cygwin the PTHREAD_RWLOCK_INITIALIZER macro is not
sufficient to get a properly initialized pthread_rwlock_t
struct. Use the pthread_rwlock_init function instead which
should work on all platforms.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 years agoFix: compat_futex_noasync on Cygwin
Michael Jeanson [Fri, 23 Nov 2018 20:27:04 +0000 (15:27 -0500)] 
Fix: compat_futex_noasync on Cygwin

The futex_noasync compat code uses a weak symbol to share state across
different shared object which is not possible on Windows with the
Portable Executable format. Use the async compat code for both cases.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 years agoVersion 0.10.1 v0.10.1
Mathieu Desnoyers [Tue, 23 Jan 2018 20:23:11 +0000 (15:23 -0500)] 
Version 0.10.1

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoFix: don't use overlapping mmap mappings on Cygwin
Michael Jeanson [Fri, 28 Jul 2017 15:51:15 +0000 (11:51 -0400)] 
Fix: don't use overlapping mmap mappings on Cygwin

The allocation scheme used by the mmap based RCU hash table is to make a
large unaccessible mapping to reserve memory without allocating it.
Then smaller chunks are allocated by overlapping read/write mappings which
do allocate memory. Deallocation is done by an overlapping unaccessible
mapping.

This scheme was tested on Linux, macOS and Solaris. However, on Cygwin the
mmap wrapper is based on the Windows NtMapViewOfSection API which doesn't
support overlapping mappings.

An alternative to the overlapping mappings is to use mprotect to change the
protection on chunks of the large mapping, read/write to allocate and none
to deallocate. This works perfecty on Cygwin and Solaris but on Linux a
call to madvise is also required to deallocate and it just doesn't work on
macOS.

For this reason, we keep to original scheme on all platforms except Cygwin.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoFix: don't use membarrier SHARED syscall command in liburcu-bp
Mathieu Desnoyers [Wed, 6 Sep 2017 20:35:59 +0000 (16:35 -0400)] 
Fix: don't use membarrier SHARED syscall command in liburcu-bp

One main user of liburcu-bp (lttng-ust) invokes synchronize_rcu()
repeatedly, without batching (does not use call_rcu).

Those delays introduced by sys_membarrier SHARED command significantly
impacts application startup time. Therefore, revert to not using the
membarrier SHARED command.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoTests fix: add missing Cygwin thread id
Michael Jeanson [Thu, 20 Jul 2017 21:33:47 +0000 (17:33 -0400)] 
Tests fix: add missing Cygwin thread id

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoFix: assignment from incompatible pointer type warnings
Michael Jeanson [Thu, 20 Jul 2017 21:33:46 +0000 (17:33 -0400)] 
Fix: assignment from incompatible pointer type warnings

On some platforms, mmap returns a caddr_t pointer which generates
compiler warnings, cast to the proper pointer type to eliminate them.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoTests fix: unused variable warnings
Michael Jeanson [Thu, 20 Jul 2017 21:33:45 +0000 (17:33 -0400)] 
Tests fix: unused variable warnings

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoFix: add missing m68k headers to dist
Michael Jeanson [Fri, 14 Jul 2017 14:20:44 +0000 (10:20 -0400)] 
Fix: add missing m68k headers to dist

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoVersion 0.10.0 v0.10.0
Mathieu Desnoyers [Mon, 12 Jun 2017 23:36:29 +0000 (19:36 -0400)] 
Version 0.10.0

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoBump library soname due to urcu flavor structure change
Mathieu Desnoyers [Thu, 8 Jun 2017 14:33:18 +0000 (10:33 -0400)] 
Bump library soname due to urcu flavor structure change

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoCleanup: use mutex_lock() wrapper in rculfhash
Mathieu Desnoyers [Thu, 8 Jun 2017 00:19:13 +0000 (20:19 -0400)] 
Cleanup: use mutex_lock() wrapper in rculfhash

Fixes this coverity issue:

*** CID 1375952:  Error handling issues  (CHECKED_RETURN)
/src/rculfhash.c: 1950 in cds_lfht_resize()
1944     }
1945
1946     void cds_lfht_resize(struct cds_lfht *ht, unsigned long new_size)
1947     {
1948             resize_target_update_count(ht, new_size);
1949             CMM_STORE_SHARED(ht->resize_initiated, 1);
>>>     CID 1375952:  Error handling issues  (CHECKED_RETURN)
>>>     Calling "pthread_mutex_lock" without checking return value (as is done elsewhere 44 out of 50 times).
1950             pthread_mutex_lock(&ht->resize_mutex);
1951             _do_cds_lfht_resize(ht);
1952             pthread_mutex_unlock(&ht->resize_mutex);
1953     }
1954
1955     static

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoUse workqueue in rculfhash
Mathieu Desnoyers [Tue, 30 May 2017 19:51:45 +0000 (15:51 -0400)] 
Use workqueue in rculfhash

The RCU lock-free hash table currently requires that the destroy
function should not be called from within RCU read-side critical
sections. This is caused by the lazy resize, which uses the call_rcu
worker thread, even though all it really needs is a workqueue/worker
thread scheme.

Use the new internal workqueue API instead of call_rcu in rculfhash to
overcome this limitation.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoImplement urcu workqueues internal API
Mathieu Desnoyers [Tue, 30 May 2017 19:14:58 +0000 (15:14 -0400)] 
Implement urcu workqueues internal API

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoAdd support for m68k architecture
Michael Jeanson [Mon, 15 May 2017 18:10:32 +0000 (14:10 -0400)] 
Add support for m68k architecture

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoSet -Wall globally in AM_CFLAGS
Michael Jeanson [Mon, 8 May 2017 20:15:22 +0000 (16:15 -0400)] 
Set -Wall globally in AM_CFLAGS

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoFix: remove double use of PTHREAD_CFLAGS
Michael Jeanson [Mon, 8 May 2017 20:03:21 +0000 (16:03 -0400)] 
Fix: remove double use of PTHREAD_CFLAGS

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoRe-add PTHREAD_CFLAGS to global CFLAGS
Michael Jeanson [Mon, 8 May 2017 19:54:56 +0000 (15:54 -0400)] 
Re-add PTHREAD_CFLAGS to global CFLAGS

Fixes a build failure on Solaris and maybe other esoteric architectures.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoFix: Don't override user variables within the build system
Michael Jeanson [Tue, 2 May 2017 21:40:45 +0000 (17:40 -0400)] 
Fix: Don't override user variables within the build system

Instead use the appropriatly prefixed AM_* variables as to not interfere
when a user variable is passed to a make command. The proper use of flag
variables is documented at :

https://www.gnu.org/software/automake/manual/automake.html#Flag-Variables-Ordering

Fixes #1095

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoAdd report at the end of configure
Michael Jeanson [Wed, 19 Apr 2017 20:47:41 +0000 (16:47 -0400)] 
Add report at the end of configure

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agouatomic-api docs: use the third-person singular
Jérémie Galarneau [Thu, 16 Mar 2017 18:05:39 +0000 (14:05 -0400)] 
uatomic-api docs: use the third-person singular

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoAdd --enable-rcu-debug to configure
Jonathan Rajotte [Mon, 23 Jan 2017 19:26:59 +0000 (14:26 -0500)] 
Add --enable-rcu-debug to configure

When used CONFIG_RCU_DEBUG is defined in urcu/config.h, thus the
debugging self-test are used at all time. This enables a permanent
built-in debugging behaviour.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoARM32: use dmb ish (inner shareable domain) for smp barriers
Mathieu Desnoyers [Mon, 5 Dec 2016 17:25:42 +0000 (12:25 -0500)] 
ARM32: use dmb ish (inner shareable domain) for smp barriers

Based on https://gcc.gnu.org/ml/gcc-patches/2014-11/msg01272.html:

From: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>:

"Hans Boehm pointed out that we were using dmb sy instead of dmb ish.
Given that the ARM-ARM says that the inner shareability domain is really
the one that contains all PE's controlled by a single hypervisor or
operating system, it would be safe to replace all dmb sy's with dmb
ish's. "

Keep full system barriers for cmm_mb()/cmm_rmb()/cmm_wmb().

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoCleanup: remove cmm_wmb() from rcu_xchg_pointer and rcu_cmpxchg_pointer
Mathieu Desnoyers [Mon, 5 Dec 2016 14:39:16 +0000 (09:39 -0500)] 
Cleanup: remove cmm_wmb() from rcu_xchg_pointer and rcu_cmpxchg_pointer

Both rcu_xchg_pointer() and rcu_cmpxchg_pointer() imply both release and
acquire barriers. Therefore, the extra cmm_wmb() is redundant and can be
removed.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoFix: uatomic arm32: add missing release barrier before uatomic_xchg
Mathieu Desnoyers [Mon, 5 Dec 2016 14:35:34 +0000 (09:35 -0500)] 
Fix: uatomic arm32: add missing release barrier before uatomic_xchg

__sync_lock_test_and_set() only imply a release barrier, but
uatomic_xchg() guarantees both acquire and release barrier semantics.
Therefore, add the missing release barrier.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 years agoTests: Add verbose support to test script
Michael Jeanson [Thu, 1 Dec 2016 16:56:08 +0000 (11:56 -0500)] 
Tests: Add verbose support to test script

Add support for the standard "V=1" to make the test runner script
verbose.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: add missing CONFIG_RCU_FORCE_SYS_MEMBARRIER to urcu/config.h.in
Mathieu Desnoyers [Fri, 16 Sep 2016 20:11:46 +0000 (16:11 -0400)] 
Fix: add missing CONFIG_RCU_FORCE_SYS_MEMBARRIER to urcu/config.h.in

Expose this configuration define in the installed header.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoAllow forcing the use of sys membarrier
Mathieu Desnoyers [Fri, 16 Sep 2016 19:15:41 +0000 (15:15 -0400)] 
Allow forcing the use of sys membarrier

When using the default (liburcu.so) and bulletproof (liburcu-bp.so)
flavours of Userspace RCU, kernel support for sys-membarrier is detected
dynamically and stored in the rcu_has_sys_membarrier_memb and
urcu_bp_has_sys_membarrier global variables.

Checking the value of these variables adds a small but measurable overhead
to smp_mb_slave. On systems which support sys-membarrier, it would be
nice to have a way of avoiding that overhead.

Here is the proposed approach: if CONFIG_RCU_FORCE_SYS_MEMBARRIER is
defined then rcu_has_sys_membarrier_memb/urcu_bp_has_sys_membarrier are
replaced with the constant 1, eliminating the overhead in smp_mb_slave.
As a sanity check, support for sys-membarrier is still detected at
startup. A program using liburcu or liburcu-bp compiled with this option
aborts in the library constructor if the membarrier system call is not
supported by the operating system.

Suggested-by: Duncan Sands <duncan.sands@deepbluecap.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: rcutorture: work-around signal issue on mac os x
Mathieu Desnoyers [Thu, 8 Sep 2016 02:11:53 +0000 (22:11 -0400)] 
Fix: rcutorture: work-around signal issue on mac os x

Our MacOS X test machine with the following config:

15.6.0 Darwin Kernel Version 15.6.0
root:xnu-3248.60.10~1/RELEASE_X86_64

appears to have issues with liburcu-signal signal being delivered on top
of pthread_cond_wait. It seems to make the thread continue, and
therefore corrupt the rcu_head. Work around this issue by unregistering
the RCU read-side thread immediately after call_rcu (call_rcu needs us
to be registered RCU readers).

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: rcutorture should register thread using call_rcu
Mathieu Desnoyers [Wed, 7 Sep 2016 21:26:25 +0000 (17:26 -0400)] 
Fix: rcutorture should register thread using call_rcu

From rcu-api.txt:

`call_rcu` should be called from registered RCU read-side threads.
For the QSBR flavor, the caller should be online.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: add missing backslash in Makefile.am
Mathieu Desnoyers [Tue, 28 Jun 2016 17:28:57 +0000 (13:28 -0400)] 
Fix: add missing backslash in Makefile.am

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: Do not use wildcards in include/Makefile.am
Michael Jeanson [Tue, 28 Jun 2016 14:50:18 +0000 (10:50 -0400)] 
Fix: Do not use wildcards in include/Makefile.am

Wildcards are not officially supported by autotools
in Makefiles since it needs to know the exact list
of files it has to work with.

Using an absolute path was a hack that worked as long
as the path to the header files from the top source dir
was the same as the install path of those files, which
is not the case anymore.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoBump version to 0.10-pre
Michael Jeanson [Thu, 23 Jun 2016 17:40:33 +0000 (13:40 -0400)] 
Bump version to 0.10-pre

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: check for rand_r() in compat-rand.h
Michael Jeanson [Thu, 23 Jun 2016 18:32:23 +0000 (14:32 -0400)] 
Fix: check for rand_r() in compat-rand.h

The rand_r() function exists in newer Android versions,
detect it instead of relying on the __ANDROID__ define.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: Move rand-compat to private src dir
Michael Jeanson [Thu, 23 Jun 2016 18:28:22 +0000 (14:28 -0400)] 
Fix: Move rand-compat to private src dir

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: remove AC_FUNC_MALLOC from configure.ac
Michael Jeanson [Mon, 27 Jun 2016 18:54:20 +0000 (14:54 -0400)] 
Fix: remove AC_FUNC_MALLOC from configure.ac

AC_FUNC_MALLOC fails cross-compile builds and is
only used to detect non-standard glibc behavior where
malloc(0) does not return a null pointer.

We don't depend on that behavior since we would have
to ship a compat implementation of malloc() for this
macro to be of any use.

Keep it commented because autoscan will report it
as missing and it might get re-introduced.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoCleanup: Re-organise source dir
Michael Jeanson [Thu, 23 Jun 2016 17:39:39 +0000 (13:39 -0400)] 
Cleanup: Re-organise source dir

Re-organise the sources, add a top level "src" and "include" dir and
move relevant files.

Disable autotools automated includes and define them manually. This
fixes problems with collision of header names with system headers.

Include the autoconf config.h in the default includes and remove it
where it's explicitely included. Remove _GNU_SOURCE defines since
it's detected at configure for platforms that requires it and added
to the config.h.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoCleanup: remove leftover manual pthread detection
Michael Jeanson [Wed, 22 Jun 2016 21:23:30 +0000 (17:23 -0400)] 
Cleanup: remove leftover manual pthread detection

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: update ax_pthread macro to handle newer clang
Michael Jeanson [Thu, 23 Jun 2016 19:20:31 +0000 (15:20 -0400)] 
Fix: update ax_pthread macro to handle newer clang

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoUpdate library current version due to adding destroy API
Mathieu Desnoyers [Thu, 23 Jun 2016 13:09:55 +0000 (09:09 -0400)] 
Update library current version due to adding destroy API

Both current and age need to be updated when adding an API.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: Use pthread_self to get threadid on OSX
Michael Jeanson [Wed, 22 Jun 2016 20:23:51 +0000 (16:23 -0400)] 
Fix: Use pthread_self to get threadid on OSX

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: examples: use destroy API for queues/stacks
Mathieu Desnoyers [Wed, 22 Jun 2016 20:46:00 +0000 (16:46 -0400)] 
Fix: examples: use destroy API for queues/stacks

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoUpdate library age due to new stack/queue destroy API
Mathieu Desnoyers [Wed, 22 Jun 2016 20:41:53 +0000 (16:41 -0400)] 
Update library age due to new stack/queue destroy API

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: tests: invoke destroy APIs for queues/stacks
Mathieu Desnoyers [Wed, 22 Jun 2016 20:21:43 +0000 (16:21 -0400)] 
Fix: tests: invoke destroy APIs for queues/stacks

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: add missing destroy functions to queues/stack APIs
Mathieu Desnoyers [Wed, 22 Jun 2016 20:20:25 +0000 (16:20 -0400)] 
Fix: add missing destroy functions to queues/stack APIs

Queues and stack APIs that invoke pthread_mutex_init() should have a
"destroy" counterpart which calls pthread_mutex_destroy(), ortherwise
this causes small memory leaks on platforms where pthread_mutex_init
performs memory allocation.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: add missing __cds_wfcq_init for LGPL API
Mathieu Desnoyers [Wed, 22 Jun 2016 20:17:37 +0000 (16:17 -0400)] 
Fix: add missing __cds_wfcq_init for LGPL API

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: memory leak on hash table destroy
Mathieu Desnoyers [Wed, 22 Jun 2016 19:50:21 +0000 (15:50 -0400)] 
Fix: memory leak on hash table destroy

There is a missing call to pthread_mutex_destroy(3) to match
pthread_mutex_init(3) in the hash table creation.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: Add failover for platforms without nproc
Michael Jeanson [Wed, 22 Jun 2016 19:16:18 +0000 (15:16 -0400)] 
Fix: Add failover for platforms without nproc

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: use clock_get_time for caa_get_cycles fallback on MacOSX
Mathieu Desnoyers [Wed, 22 Jun 2016 16:32:34 +0000 (12:32 -0400)] 
Fix: use clock_get_time for caa_get_cycles fallback on MacOSX

Use clock_get_time as fallback to read time for caa_get_cycles on
MacOSX. It should not matter much in practice, since x86 uses the cycle
counter.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: syscall-compat.h MacOSX support
Mathieu Desnoyers [Wed, 22 Jun 2016 15:34:26 +0000 (11:34 -0400)] 
Fix: syscall-compat.h MacOSX support

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: Add solaris-build.md to dist
Michael Jeanson [Tue, 21 Jun 2016 20:52:52 +0000 (16:52 -0400)] 
Fix: Add solaris-build.md to dist

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agorculfhash: Documentation: clarify need for grace period before "re-using"
Mathieu Desnoyers [Fri, 10 Jun 2016 18:43:40 +0000 (14:43 -0400)] 
rculfhash: Documentation: clarify need for grace period before "re-using"

Grace period must be waited for in case a node removed from the hash
table is re-used, similarly to the reclaim use-case.

Reported-by: Luke K D'Alessandro <ldalessa@indiana.edu>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoPort: build shared libraries in Cygwin
Sebastien Boisvert [Thu, 2 Jun 2016 03:02:31 +0000 (23:02 -0400)] 
Port: build shared libraries in Cygwin

Link: https://lists.lttng.org/pipermail/lttng-dev/2016-May/026081.html
Signed-off-by: Sebastien Boisvert <sboisvert@gydle.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoPort: fix compatibility header for Cygwin
Sebastien Boisvert [Thu, 2 Jun 2016 03:01:37 +0000 (23:01 -0400)] 
Port: fix compatibility header for Cygwin

Signed-off-by: Sebastien Boisvert <sboisvert@gydle.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoAdd GNU Hurd support to syscall-compat.h
Michael Jeanson [Mon, 30 May 2016 19:58:03 +0000 (15:58 -0400)] 
Add GNU Hurd support to syscall-compat.h

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoAdd support for aarch64_be
Mathieu Desnoyers [Thu, 19 May 2016 20:08:50 +0000 (16:08 -0400)] 
Add support for aarch64_be

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: urcu-bp: re-initialize list head on library exit
Mathieu Desnoyers [Wed, 18 May 2016 18:50:01 +0000 (14:50 -0400)] 
Fix: urcu-bp: re-initialize list head on library exit

In case an application would try to create threads after the urcu-bp
library destructor has run, make sure the arena chunk list is
re-initialized after the memory mappings are unmapped.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agobootstrap: Standardize on autoreconf -vi
Mathieu Desnoyers [Thu, 12 May 2016 15:54:46 +0000 (11:54 -0400)] 
bootstrap: Standardize on autoreconf -vi

Don't overwrite already generated files.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoHarmonize bootstrap script across projects
Michael Jeanson [Thu, 12 May 2016 15:05:40 +0000 (11:05 -0400)] 
Harmonize bootstrap script across projects

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: examples make distcheck failure
Mathieu Desnoyers [Tue, 10 May 2016 22:22:00 +0000 (18:22 -0400)] 
Fix: examples make distcheck failure

"make distcheck" marks each source file on the srcdir in the extracted
dist tarball read-only. The examples copy from the srcdir into the
builddir before running the "make" examples, but this keeps the
read-only flag on the builddir directories, which fails the build
because the resulting objects cannot be created.

Fix this by ensuring the copied target directory for each example is
user-writeable.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agowfcqueue: add C++ compatibility API
Mathieu Desnoyers [Tue, 8 Mar 2016 00:24:20 +0000 (19:24 -0500)] 
wfcqueue: add C++ compatibility API

Introduce __cds_wfcq_head_cast and cds_wfcq_head_cast for compability
of wfcqueue with c++. Those are effect-less in C, where transparent
unions are supported. However, in C++, those transform struct
cds_wfcq_head and struct __cds_wfcq_head pointers to
cds_wfcq_head_ptr_t.

Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: CDS_WFCQ_WOULDBLOCK typing for c++
Mathieu Desnoyers [Sat, 5 Mar 2016 15:09:33 +0000 (10:09 -0500)] 
Fix: CDS_WFCQ_WOULDBLOCK typing for c++

Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: configure.ac: check for possibly required libs for clock_gettime
Olof Johansson [Wed, 10 Feb 2016 09:39:50 +0000 (10:39 +0100)] 
Fix: configure.ac: check for possibly required libs for clock_gettime

On some platforms, you have to link with rt to get clock_gettime. This
solves errors like:

 undefined reference to `clock_gettime'

Fixes: #996
Signed-off-by: Olof Johansson <olof.johansson@axis.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoSupport for NIOS2 architecture
Marek Vasut [Tue, 9 Feb 2016 18:30:22 +0000 (19:30 +0100)] 
Support for NIOS2 architecture

Add support for the Altera NIOS2 CPU archirecture. The atomic operations
are handled by the GCC. The memory barriers on this systems are entirely
trivial too, since the CPU does not support SMP at all.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agourcu_ref_get_safe: introduce new API
Mathieu Desnoyers [Thu, 21 Jan 2016 16:45:58 +0000 (11:45 -0500)] 
urcu_ref_get_safe: introduce new API

Add a urcu_ref_get_safe API, which returns a boolean. It takes the value
"false" if a LONG_MAX overflow would occur (get is not performed in this
case), or true otherwise.

It warns the user (at compile-time) if the return value is unchecked.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: handle reference count overflow
Mathieu Desnoyers [Tue, 19 Jan 2016 20:23:01 +0000 (15:23 -0500)] 
Fix: handle reference count overflow

The urcu refcounting API features a look and feel similar to the Linux
kernel reference counting API, which has been the subject of
CVE-2016-0728 (use-after-free). Therefore, improve the urcu refcounting
API by dealing with reference counting overflow.

For urcu_ref_get(), handle this by comparing the prior value with
LONG_MAX before updating it with a cmpxchg. When an overflow would
occur, trigger a abort() rather than allowing the overflow (which is a
use-after-free security concern).

For urcu_ref_get_unless_zero(), in addition to compare the prior value
to 0, also compare it to LONG_MAX, and return failure (false) in both
cases.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 years agoFix: compat_futex should work-around futex signal-restart kernel bug
Mathieu Desnoyers [Fri, 4 Dec 2015 07:03:02 +0000 (08:03 +0100)] 
Fix: compat_futex should work-around futex signal-restart kernel bug

When testing liburcu on a 3.18 Linux kernel, 2-core MIPS (cpu model :
Ingenic JZRISC V4.15  FPU V0.0), we notice that a blocked sys_futex
FUTEX_WAIT returns -1, errno=ENOSYS when interrupted by a SA_RESTART
signal handler. This spurious ENOSYS behavior causes hangs in liburcu
0.9.x. Running a MIPS 3.18 kernel under a QEMU emulator exhibits the
same behavior. This might affect earlier kernels.

This issue appears to be fixed in 3.19 since commit e967ef022 "MIPS: Fix
restart of indirect syscalls", but nevertheless, we should try to handle
this kernel bug more gracefully than a user-space hang due to unexpected
spurious ENOSYS return value.

Therefore, fallback on the "async-safe" version of compat_futex in those
situations where FUTEX_WAIT returns ENOSYS. This async-safe fallback has
the nice property of being OK to use concurrently with other FUTEX_WAKE
and FUTEX_WAIT futex() calls, because it's simply a busy-wait scheme.

The 4.2 kernel on parisc, and likely newer kernels too, are also
affected by a similar issue.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Michael Jeanson <mjeanson@efficios.com>
CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
CC: linux-kernel@vger.kernel.org
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
8 years agoSupport for Xeon-Phi with newer MPSS
Didier Nadeau [Wed, 16 Dec 2015 20:02:47 +0000 (15:02 -0500)] 
Support for Xeon-Phi with newer MPSS

The Xeon-Phi is now considered as a new architecture instead of a
vendor in MPSS version 3.4.4. This change is backward compatible with
previous MPSS versions.

Signed-off-by: Didier Nadeau <didier.nadeau@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agosparc64: allocate membarrier system call number
Mathieu Desnoyers [Mon, 16 Nov 2015 16:33:55 +0000 (11:33 -0500)] 
sparc64: allocate membarrier system call number

Now that the membarrier system call is allocated on sparc, allocate
its number in our architecture header if the system headers don't
allocate it. This allows using the membarrier system call as soon as
implemented in the kernel, even if the distribution has old kernel
headers.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agohppa: allocate membarrier system call number
Mathieu Desnoyers [Mon, 16 Nov 2015 16:31:10 +0000 (11:31 -0500)] 
hppa: allocate membarrier system call number

Now that the membarrier system call is allocated on hppa (parisc),
allocate its number in our architecture header if the system headers
don't allocate it. This allows using the membarrier system call as soon
as implemented in the kernel, even if the distribution has old kernel
headers.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix build on non-Linux Debian ports
Michael Jeanson [Thu, 12 Nov 2015 16:27:47 +0000 (11:27 -0500)] 
Fix build on non-Linux Debian ports

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix: urcu-signal: smp_mb_master() needs registry lock
Mathieu Desnoyers [Fri, 30 Oct 2015 21:11:55 +0000 (17:11 -0400)] 
Fix: urcu-signal: smp_mb_master() needs registry lock

The signal-based urcu flavor calls smp_mb_master() within the wait_gp()
function. Since commit "Fix: deadlock when thread join is issued in
read-side C.S.", wait_gp() is called without the registry lock held.

Ensure that the registry lock is only released around the wait per se,
not around the call to smp_mb_master(), otherwise we end up iterating on
a non-consistent thread registry in smp_mb_master().

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix: rculfhash only needs to include urcu-pointers.h
Mathieu Desnoyers [Wed, 28 Oct 2015 19:57:22 +0000 (15:57 -0400)] 
Fix: rculfhash only needs to include urcu-pointers.h

rculfhash is not meant to use a specific urcu flavor, but rather receive
the flavor to use as parameter to _cds_lfht_new().

All we need is the API of urcu-pointers.h, so include that instead.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix: out-of-tree benchmark/regtest
Mathieu Desnoyers [Fri, 16 Oct 2015 23:09:00 +0000 (19:09 -0400)] 
Fix: out-of-tree benchmark/regtest

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix: add missing regtest and benchmark files to dist tarball
Mathieu Desnoyers [Fri, 16 Oct 2015 21:53:49 +0000 (17:53 -0400)] 
Fix: add missing regtest and benchmark files to dist tarball

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix: add missing run.sh to benchmark makefile
Mathieu Desnoyers [Fri, 16 Oct 2015 20:48:45 +0000 (16:48 -0400)] 
Fix: add missing run.sh to benchmark makefile

This fixes make regtest on a distribution tarball.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoVersion 0.9.0 v0.9.0
Mathieu Desnoyers [Fri, 16 Oct 2015 19:31:56 +0000 (15:31 -0400)] 
Version 0.9.0

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoBump soname major to 4
Mathieu Desnoyers [Fri, 16 Oct 2015 19:28:57 +0000 (15:28 -0400)] 
Bump soname major to 4

The tls-compat.h header now emits different symbols, we therefore need
to bump the soname to 4:0:0.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoCleanup: remove trailing tab
Mathieu Desnoyers [Fri, 16 Oct 2015 19:24:15 +0000 (15:24 -0400)] 
Cleanup: remove trailing tab

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix: Use proper macro to detect stdbool.h
Michael Jeanson [Thu, 8 Oct 2015 19:54:15 +0000 (15:54 -0400)] 
Fix: Use proper macro to detect stdbool.h

Using AC_HEADER_STDBOOL make more sense since we don't use
gnulib and it works with older autoconf versions.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoConfigure: Add missing checks
Michael Jeanson [Wed, 7 Oct 2015 18:43:49 +0000 (14:43 -0400)] 
Configure: Add missing checks

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoPort: Add Solaris build instructions
Michael Jeanson [Tue, 6 Oct 2015 11:50:28 +0000 (07:50 -0400)] 
Port: Add Solaris build instructions

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoFix: regtest outputs valid TAP protocol
Michael Jeanson [Mon, 5 Oct 2015 21:41:59 +0000 (17:41 -0400)] 
Fix: regtest outputs valid TAP protocol

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 years agoPort: Detect nproc bin name in benchmark scripts
Michael Jeanson [Mon, 5 Oct 2015 19:03:34 +0000 (15:03 -0400)] 
Port: Detect nproc bin name in benchmark scripts

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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