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afe4de7d28
Add: int pthread_cond_clockwait (pthread_cond_t *cond, pthread_mutex_t *mutex, clockid_t clockid, const struct timespec *abstime) which behaves just like pthread_cond_timedwait except it always measures abstime against the supplied clockid. Currently supports CLOCK_REALTIME and CLOCK_MONOTONIC and returns EINVAL if any other clock is specified. Includes feedback from many others. This function was originally proposed[1] as pthread_cond_timedwaitonclock_np, but The Austin Group preferred the new name. * nptl/Makefile: Add tst-cond26 and tst-cond27 * nptl/Versions (GLIBC_2.30): Add pthread_cond_clockwait * sysdeps/nptl/pthread.h: Likewise * nptl/forward.c: Add __pthread_cond_clockwait * nptl/forward.c: Likewise * nptl/pthreadP.h: Likewise * sysdeps/nptl/pthread-functions.h: Likewise * nptl/pthread_cond_wait.c (__pthread_cond_wait_common): Add clockid parameter and comment describing why we don't need to check its value. Use that value when calling futex_abstimed_wait_cancelable rather than reading the clock from the flags. (__pthread_cond_wait): Pass unused clockid parameter. (__pthread_cond_timedwait): Read clock from flags and pass it to __pthread_cond_wait_common. (__pthread_cond_clockwait): Add new function with weak alias from pthread_cond_clockwait. * sysdeps/mach/hurd/i386/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/aarch64/libpthread.abilist * (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/microblaze/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist (GLIBC_2.30): Likewise. * nptl/tst-cond11.c (run_test): Support testing pthread_cond_clockwait too by using a special magic CLOCK_USE_ATTR_CLOCK value to determine whether to call pthread_cond_timedwait or pthread_cond_clockwait. (do_test): Pass CLOCK_USE_ATTR_CLOCK for existing tests, and add new tests using all combinations of CLOCK_MONOTONIC and CLOCK_REALTIME. * ntpl/tst-cond26.c: New test for passing unsupported and * invalid clocks to pthread_cond_clockwait. * nptl/tst-cond27.c: Add test similar to tst-cond5.c, but using struct timespec and pthread_cond_clockwait. * manual/threads.texi: Document pthread_cond_clockwait. The * comment was provided by Carlos O'Donell. [1] https://sourceware.org/ml/libc-alpha/2015-07/msg00193.html Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
292 lines
8.3 KiB
Plaintext
292 lines
8.3 KiB
Plaintext
libc {
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GLIBC_2.0 {
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pthread_attr_destroy; pthread_attr_init;
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pthread_attr_getdetachstate; pthread_attr_setdetachstate;
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pthread_attr_getinheritsched; pthread_attr_setinheritsched;
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pthread_attr_getschedparam; pthread_attr_setschedparam;
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pthread_attr_getschedpolicy; pthread_attr_setschedpolicy;
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pthread_attr_getscope; pthread_attr_setscope;
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pthread_condattr_destroy; pthread_condattr_init;
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pthread_cond_broadcast; pthread_cond_destroy;
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pthread_cond_init; pthread_cond_signal; pthread_cond_wait;
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pthread_cond_timedwait;
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pthread_equal; pthread_exit;
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pthread_getschedparam; pthread_setschedparam;
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pthread_mutex_destroy; pthread_mutex_init;
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pthread_mutex_lock; pthread_mutex_unlock;
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pthread_self;
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pthread_setcancelstate; pthread_setcanceltype;
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}
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GLIBC_2.1 {
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pthread_attr_init;
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}
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GLIBC_2.3.2 {
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__register_atfork;
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# Changed pthread_cond_t.
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pthread_cond_init; pthread_cond_destroy;
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pthread_cond_wait; pthread_cond_signal;
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pthread_cond_broadcast; pthread_cond_timedwait;
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}
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# C11 thread symbols.
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GLIBC_2.28 {
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thrd_current; thrd_equal; thrd_sleep; thrd_yield;
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}
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GLIBC_PRIVATE {
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__libc_alloca_cutoff;
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# Internal libc interface to libpthread
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__libc_dl_error_tsd;
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__libc_pthread_init;
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__libc_current_sigrtmin_private; __libc_current_sigrtmax_private;
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__libc_allocate_rtsig_private;
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}
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}
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libpthread {
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GLIBC_2.0 {
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pthread_create; pthread_join; pthread_self; pthread_equal;
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pthread_exit; pthread_detach;
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pthread_getschedparam; pthread_setschedparam;
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pthread_attr_init; pthread_attr_destroy;
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pthread_attr_getdetachstate; pthread_attr_setdetachstate;
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pthread_attr_getschedparam; pthread_attr_setschedparam;
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pthread_attr_getschedpolicy; pthread_attr_setschedpolicy;
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pthread_attr_getinheritsched; pthread_attr_setinheritsched;
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pthread_attr_getscope; pthread_attr_setscope;
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pthread_mutex_init; pthread_mutex_destroy;
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pthread_mutex_lock; pthread_mutex_trylock; pthread_mutex_unlock;
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pthread_mutexattr_init; pthread_mutexattr_destroy;
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pthread_cond_init; pthread_cond_destroy;
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pthread_cond_wait; pthread_cond_timedwait;
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pthread_cond_signal; pthread_cond_broadcast;
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pthread_condattr_destroy; pthread_condattr_init;
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pthread_cancel; pthread_testcancel;
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pthread_setcancelstate; pthread_setcanceltype;
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pthread_sigmask; pthread_kill;
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pthread_key_create; pthread_key_delete;
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pthread_getspecific; pthread_setspecific;
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pthread_once;
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pthread_atfork;
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flockfile; funlockfile; ftrylockfile;
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# Non-standard POSIX1.x functions.
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pthread_mutexattr_getkind_np; pthread_mutexattr_setkind_np;
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# Protected names for functions used in other shared objects.
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__pthread_mutex_init; __pthread_mutex_destroy;
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__pthread_mutex_lock; __pthread_mutex_trylock; __pthread_mutex_unlock;
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__pthread_mutexattr_init; __pthread_mutexattr_destroy;
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__pthread_mutexattr_settype;
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__pthread_key_create; __pthread_getspecific; __pthread_setspecific;
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__pthread_once; __pthread_atfork;
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_IO_flockfile; _IO_ftrylockfile; _IO_funlockfile;
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# Semaphores.
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sem_destroy; sem_getvalue; sem_init; sem_post; sem_trywait; sem_wait;
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# Special fork handling.
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fork; __fork;
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# Cancellation points.
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close; __close; fcntl; __fcntl; read; __read; write; __write; accept;
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connect; __connect; recv; recvfrom; recvmsg; send; __send; sendmsg; sendto;
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fsync; lseek; __lseek; msync; nanosleep; open; __open; pause; tcdrain;
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system; wait; __wait; waitpid;
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# Hidden entry point (through macros).
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_pthread_cleanup_push; _pthread_cleanup_pop;
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_pthread_cleanup_push_defer; _pthread_cleanup_pop_restore;
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pthread_kill_other_threads_np;
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# The error functions.
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__errno_location; __h_errno_location;
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# Functions which previously have been overwritten.
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sigwait; sigaction; __sigaction; _exit; _Exit; longjmp; siglongjmp;
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raise;
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}
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GLIBC_2.1 {
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pthread_create;
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pthread_attr_init;
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pthread_attr_getguardsize; pthread_attr_setguardsize;
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pthread_attr_getstackaddr; pthread_attr_setstackaddr;
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pthread_attr_getstacksize; pthread_attr_setstacksize;
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pthread_mutexattr_gettype; pthread_mutexattr_settype;
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pthread_rwlock_init; pthread_rwlock_destroy;
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pthread_rwlock_rdlock; pthread_rwlock_wrlock; pthread_rwlock_unlock;
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pthread_rwlock_tryrdlock; pthread_rwlock_trywrlock;
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pthread_rwlockattr_init; pthread_rwlockattr_destroy;
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pthread_rwlockattr_getpshared; pthread_rwlockattr_setpshared;
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pthread_rwlockattr_getkind_np; pthread_rwlockattr_setkind_np;
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pthread_getconcurrency; pthread_setconcurrency;
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# Semaphores.
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sem_destroy; sem_getvalue; sem_init; sem_post; sem_trywait; sem_wait;
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__libc_current_sigrtmin; __libc_current_sigrtmax;
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__libc_allocate_rtsig;
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}
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GLIBC_2.1.1 {
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sem_close; sem_open; sem_unlink;
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}
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GLIBC_2.1.2 {
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__libpthread_version_placeholder;
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}
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GLIBC_2.2 {
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pthread_mutexattr_getpshared; pthread_mutexattr_setpshared;
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pthread_condattr_getpshared; pthread_condattr_setpshared;
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# New functions from IEEE Std. 1003.1-2001.
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pthread_mutex_timedlock;
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pthread_rwlock_timedrdlock; pthread_rwlock_timedwrlock;
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pthread_attr_getstack; pthread_attr_setstack;
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pthread_spin_destroy; pthread_spin_init; pthread_spin_lock;
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pthread_spin_trylock; pthread_spin_unlock;
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pthread_barrier_init; pthread_barrier_destroy; pthread_barrier_wait;
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pthread_barrierattr_destroy; pthread_barrierattr_init;
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pthread_barrierattr_setpshared;
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sem_timedwait;
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pthread_yield;
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pthread_getcpuclockid;
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# Cancellation points.
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lseek64; open64; __open64; pread; pread64; __pread64; pwrite; pwrite64;
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__pwrite64;
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# Names used internally.
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__pthread_rwlock_init; __pthread_rwlock_destroy;
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__pthread_rwlock_rdlock; __pthread_rwlock_tryrdlock;
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__pthread_rwlock_wrlock; __pthread_rwlock_trywrlock;
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__pthread_rwlock_unlock;
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__res_state;
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}
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GLIBC_2.2.3 {
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# Extensions.
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pthread_getattr_np;
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}
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GLIBC_2.2.6 {
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# Cancellation wrapper
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__nanosleep;
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}
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GLIBC_2.3.2 {
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# Changed pthread_cond_t.
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pthread_cond_init; pthread_cond_destroy;
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pthread_cond_wait; pthread_cond_timedwait;
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pthread_cond_signal; pthread_cond_broadcast;
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}
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GLIBC_2.3.3 {
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# 1003.1-2001 function accidentally left out in 2.2.
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pthread_barrierattr_getpshared;
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# Unix CS option.
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pthread_condattr_getclock; pthread_condattr_setclock;
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# Proposed API extensions.
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pthread_tryjoin_np; pthread_timedjoin_np;
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# New cancellation cleanup handling.
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__pthread_register_cancel; __pthread_unregister_cancel;
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__pthread_register_cancel_defer; __pthread_unregister_cancel_restore;
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__pthread_unwind_next;
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__pthread_cleanup_routine;
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# affinity interfaces without size parameter
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pthread_getaffinity_np; pthread_setaffinity_np;
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pthread_attr_getaffinity_np; pthread_attr_setaffinity_np;
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}
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GLIBC_2.3.4 {
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# New affinity interfaces.
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pthread_getaffinity_np; pthread_setaffinity_np;
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pthread_attr_getaffinity_np; pthread_attr_setaffinity_np;
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pthread_setschedprio;
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}
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GLIBC_2.4 {
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pthread_mutexattr_getrobust_np; pthread_mutexattr_setrobust_np;
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pthread_mutex_consistent_np;
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pthread_mutexattr_getprotocol; pthread_mutexattr_setprotocol;
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pthread_mutexattr_getprioceiling; pthread_mutexattr_setprioceiling;
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pthread_mutex_getprioceiling; pthread_mutex_setprioceiling;
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};
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GLIBC_2.11 {
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pthread_sigqueue;
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};
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GLIBC_2.12 {
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pthread_mutex_consistent; pthread_mutexattr_getrobust;
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pthread_mutexattr_setrobust;
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pthread_setname_np; pthread_getname_np;
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};
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GLIBC_2.18 {
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pthread_getattr_default_np;
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pthread_setattr_default_np;
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}
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GLIBC_2.20 {
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}
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GLIBC_2.22 {
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}
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# C11 thread symbols.
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GLIBC_2.28 {
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thrd_create; thrd_detach; thrd_exit; thrd_join;
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mtx_init; mtx_lock; mtx_timedlock; mtx_trylock; mtx_unlock; mtx_destroy;
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call_once; cnd_broadcast; cnd_destroy; cnd_init; cnd_signal;
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cnd_timedwait; cnd_wait; tss_create; tss_delete; tss_get; tss_set;
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}
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GLIBC_2.30 {
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sem_clockwait; pthread_cond_clockwait;
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}
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GLIBC_PRIVATE {
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__pthread_initialize_minimal;
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__pthread_clock_gettime; __pthread_clock_settime;
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__pthread_unwind; __pthread_get_minstack;
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__pthread_barrier_init; __pthread_barrier_wait;
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__shm_directory;
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__libpthread_freeres;
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}
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}
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