This patch fix the semaphore initialisation on posix plateform
there was a preconditon test which returned the semaphore
uninitialised when count_init was 1, this caused the semaphore to
be unusable on OSX plateform. Furthermore, it seems that we need to
unlink the semaphore before its initialisation on OSX as there seems
to have some kind of persistence of the semaphore accross execution.
warning, this patch change the signification of the parametter
count_init on linux plateform, this parametter is now consistent on
every plateform, with the meaning of setting the initial count value
of the semaphore.
This used to be on linux 1 -> the semaphore is shared and initialised
at 1 and 0 -> the semaphore is not initialised, thus, by side effect
not shared and initialised at 0.
This patch set on linux plateform the semaphore as systematically
shared
@fix
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
This is a quick fix.
It looks like OSX doesn't provide the same infra as linux for
cond_timedwait, but instead they provide directly a
relative time wait function. Since I don't have any build / test
environment for OSX, this is as far as I can go.
Arguably, OSX libc seems to use gettimeofday() for cond_timedwait,
so this should close T1701.
See the pthread cond implementation:
http://www.opensource.apple.com/source/Libc/Libc-167/pthreads.subproj/pthread_cond.c
Much confusion with this spaghetti code of #ifdefs and clocks.
So, we can't use CPU clocks for the timedwait, this doesn't make
sense (and it's explicit in the manpage, too).
But we can use CLOCK_MONOTONIC or CLOCK_MONOTONIC_RAW which are
much better than the wall clock (because of ntp updates, etc...)
The test case tests that the cond actually waited for as long as was
requested and for not too long either.
This is hopefully a final fix for T1701.
The pthread man page clearly states that pthread_cond_timedwait() takes an
absolute time parameter. So far we always passed it epoch plus timeout in
seconds. This would never trigger the timeout.
Making sure we fill out timespec struct with the current time before adding
the timeout as offset now. Also handling the t < 0 error case.
Various version worked up together with Jean-Philippe Andre <jp.andre@samsung.com>
This version does not use _eina_time_get directly as this is currently not a
public API of eina. If we decide to make _eina_time_get public we can remove the
extra code here.
Fixes T1701
Summary:
OSX only support named semaphores. Eina_Semaphore was actually broken on OSX.
Since OSX 10.10 sem_init() and sem_destroy() (were not implemented) are also marked as
"deprecated", which adds huge pollution to the output when compiling.
Reviewers: cedric, raster, stefan_schmidt
Subscribers: cedric
Differential Revision: https://phab.enlightenment.org/D1576
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
Not ready yet as it uses _eina_time_get which is internal only right now. Compiling
works fine for efl alone as the private header is in teh include search part but it
blows up when compiling elementary.
Need to think a bit more about this. Maybe exposing _eina_time_get as API but that
should wait until after the release.
This reverts commit f0a02a92be.
The pthread man page clearly states that pthread_cond_timedwait() takes an
absolute time parameter. So far we always passed it epoch plus timeout in
seconds. This would never trigger the timeout.
Making sure we fill out timespec struct with the current time before adding
the timeout as offset now. Also handling the t < 0 error case.
Various version worked up together with Jean-Philippe Andre <jp.andre@samsung.com>
Fixes T1701
Summary: Support of Spinlocks in Eina (Eina_Spinlock) for OSX, which does not implement them in pthread.
@feature
Reviewers: raster, raoulh, naguirre, cedric, stefan_schmidt
Subscribers: cedric
Differential Revision: https://phab.enlightenment.org/D1151
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
Summary: Updated documentation for Eina Lock and related files.
Test Plan: Reviewers
Reviewers: cedric, raster
CC: cedric, raster
Differential Revision: https://phab.enlightenment.org/D650
Summary:
delete_cb is called at thread exit for each Eina_TLS keys used by the thread
Details:
posix:
pthread_key_create(key, delete_cb); does it
win32/wince:
eina_tls_free/new un/registers key&&cb into a static eina_list.
eina_tls_set add the key to an eina_list in Eina_Thread_Win3.
this list is cleared and callbacks are called in _eina_thread_join()
Test Plan: win32/wince has to be tested, I have no setup to do it.
Reviewers: cedric
CC: cedric
Differential Revision: https://phab.enlightenment.org/D489
Guilherme Lepsch
pierre lamot
Jean-Philippe ANDRE
Jean-Philippe Andre
Stefan Schmidt
Jean Guyomarc'h
Jeff Grimshaw
Jérémy Zurcher
Carsten Haitzler
Cedric Bail
Cedric BAIL
Cedric Bail
Vincent Torri