Commit Graph

7 Commits

Author SHA1 Message Date
Christopher Friedt 9d433c89a2 lib: posix: semaphore: use consistent timebase in sem_timedwait
In the Zephyr implementation, `sem_timedwait()` uses a
potentially wildly different timebase for comparison via
`k_uptime_get()` (uptime in ms).

The standard specifies `CLOCK_REALTIME`. However, the real-time
clock can be modified to an arbitrary value via clock_settime()
and there is no guarantee that it will always reflect uptime.

This change ensures that `sem_timedwait()` uses a more
consistent timebase for comparison.

Fixes #46807

Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
2022-06-24 20:12:05 +02:00
Gerard Marull-Paretas cbd31d720b lib: migrate includes to <zephyr/...>
In order to bring consistency in-tree, migrate all lib code to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to zephyrproject-rtos#45388 for more details.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-05-06 19:58:09 +02:00
Maksim Masalski da3e834d58 lib: posix: unchecked return value while taking semaphore
Fixing of the false-positive Coveiry issue.
Stop Coverity from worrying about this case.

Signed-off-by: Maksim Masalski <maksim.masalski@intel.com>
2020-10-21 06:26:11 -05:00
Kumar Gala a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Paul Sokolovsky 0b634793cc lib: posix: Update to new timeout API
Mostly trivial search-and-replace, except for pthread_rwlock.c, where
we need spread timeout over 2 semaphore operations.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2020-05-08 17:31:45 +02:00
Punit Vara 2cf270758e lib: posix: Return errno code
Return EINVAL errno when argument doesn't refer to
valid semaphore.

partly fixes #9993

Signed-off-by: Punit Vara <punit.vara@intel.com>
2018-10-31 12:15:22 -04:00
Ramakrishna Pallala f603e603bb lib: posix: Move posix layer from 'kernel' to 'lib'
Move posix layer from 'kernel' to 'lib' folder as it is not
a core kernel feature.

Fixed posix header file dependencies as part of the move and
also removed NEWLIBC related macros from posix headers.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-04-05 16:43:05 -04:00