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| author | Mike Crowe <mac@mcrowe.com> | 2019-06-21 14:53:40 +0000 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-07-12 13:36:23 +0000 |
| commit | 99d01ffcc386d1bfb681fb0684fcf6a6a996beb3 (patch) | |
| tree | 166e14d240825fdab7863e955dcbc9c8413c5781 /manual/threads.texi | |
| parent | a008c76b56e4f958cf5a0d6f67d29fade89421b7 (diff) | |
| download | glibc-99d01ffcc386d1bfb681fb0684fcf6a6a996beb3.tar.gz glibc-99d01ffcc386d1bfb681fb0684fcf6a6a996beb3.tar.xz glibc-99d01ffcc386d1bfb681fb0684fcf6a6a996beb3.zip | |
nptl: Add clockid parameter to futex timed wait calls
In preparation for adding POSIX clockwait variants of timedwait functions, add a clockid_t parameter to futex_abstimed_wait functions and pass CLOCK_REALTIME from all callers for the time being. Replace lll_futex_timed_wait_bitset with lll_futex_clock_wait_bitset which takes a clockid_t parameter rather than the magic clockbit. * sysdeps/nptl/lowlevellock-futex.h, sysdeps/unix/sysv/linux/lowlevellock-futex.h: Replace lll_futex_timed_wait_bitset with lll_futex_clock_wait_bitset that takes a clockid rather than a special clockbit. * sysdeps/nptl/lowlevellock-futex.h: Add lll_futex_supported_clockid so that client functions can check whether their clockid parameter is valid even if they don't ultimately end up calling lll_futex_clock_wait_bitset. * sysdeps/nptl/futex-internal.h, sysdeps/unix/sysv/linux/futex-internal.h (futex_abstimed_wait, futex_abstimed_wait_cancelable): Add clockid_t parameter to indicate which clock the absolute time passed should be measured against. Pass that clockid onto lll_futex_clock_wait_bitset. Add invalid clock as reason for returning -EINVAL. * sysdeps/nptl/futex-internal.h, sysdeps/unix/sysv/linux/futex-internal.h: Introduce futex_abstimed_supported_clockid so that client functions can check whether their clockid parameter is valid even if they don't ultimately end up calling futex_abstimed_wait. * nptl/pthread_cond_wait.c (__pthread_cond_wait_common): Remove code to calculate relative timeout for __PTHREAD_COND_CLOCK_MONOTONIC_MASK and just pass CLOCK_MONOTONIC or CLOCK_REALTIME as required to futex_abstimed_wait_cancelable. * nptl/pthread_rwlock_common (__pthread_rwlock_rdlock_full) (__pthread_wrlock_full), nptl/sem_waitcommon (do_futex_wait): Pass additional CLOCK_REALTIME to futex_abstimed_wait_cancelable. * nptl/pthread_mutex_timedlock.c (__pthread_mutex_timedlock): Switch to lll_futex_clock_wait_bitset and pass CLOCK_REALTIME Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'manual/threads.texi')
0 files changed, 0 insertions, 0 deletions