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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-10-30 15:56:39 -0300 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-10-31 11:09:01 -0300 |
commit | 215078017fd25fd64074e25ccd3dde0f6f19d4fe (patch) | |
tree | c5145504191cfb0aa808ae9b286e6da91882a7af /sysdeps/unix/sysv/linux/msgsnd.c | |
parent | b58032743415575661dddd4e813440b6b9430327 (diff) | |
download | glibc-215078017fd25fd64074e25ccd3dde0f6f19d4fe.tar.gz glibc-215078017fd25fd64074e25ccd3dde0f6f19d4fe.tar.xz glibc-215078017fd25fd64074e25ccd3dde0f6f19d4fe.zip |
nptl: Replace non cancellable pause/nanosleep with futex
To help y2038 work avoid duplicate all the logic of nanosleep on non cancellable version, the patch replace it with a new futex operation, lll_timedwait. The changes are: - Add a expected value for __lll_clocklock_wait, so it can be used to wait for generic values. - Remove its internal atomic operation and move the logic to __lll_clocklock. It makes __lll_clocklock_wait even more generic and __lll_clocklock slight faster on fast-path (since it won't require a function call anymore). - Add lll_timedwait, which uses __lll_clocklock_wait, to replace both __pause_nocancel and __nanosleep_nocancel. It also allows remove the sparc32 __lll_clocklock_wait implementation (since it is similar to the generic one). Checked on x86_64-linux-gnu, sparcv9-linux-gnu, and i686-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/msgsnd.c')
0 files changed, 0 insertions, 0 deletions