diff options
Diffstat (limited to 'manual/threads.texi')
| -rw-r--r-- | manual/threads.texi | 172 |
1 files changed, 165 insertions, 7 deletions
diff --git a/manual/threads.texi b/manual/threads.texi index 9a5ef6a987..e088b26a15 100644 --- a/manual/threads.texi +++ b/manual/threads.texi @@ -20,9 +20,11 @@ The @glibcadj{} implements functions to allow users to create and manage data specific to a thread. Such data may be destroyed at thread exit, if a destructor is provided. The following functions are defined: -@table @code - -@item int pthread_key_create (pthread_key_t *@var{key}, void (*@var{destructor})(void*)) +@deftypefun int pthread_key_create (pthread_key_t *@var{key}, void (*@var{destructor})(void*)) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c pthread_key_create ok +@c KEY_UNUSED ok +@c KEY_USABLE ok Create a thread-specific data key for the calling thread, referenced by @var{key}. @@ -30,20 +32,39 @@ Objects declared with the C++11 @code{thread_local} keyword are destroyed before thread-specific data, so they should not be used in thread-specific data destructors or even as members of the thread-specific data, since the latter is passed as an argument to the destructor function. +@end deftypefun -@item int pthread_key_delete (pthread_key_t @var{key}) +@deftypefun int pthread_key_delete (pthread_key_t @var{key}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c pthread_key_delete ok +@c This uses atomic compare and exchange to increment the seq number +@c after testing it's not a KEY_UNUSED seq number. +@c KEY_UNUSED dup ok Destroy the thread-specific data @var{key} in the calling thread. The destructor for the thread-specific data is not called during destruction, nor is it called during thread exit. +@end deftypefun -@item void *pthread_getspecific (pthread_key_t @var{key}) +@deftypefun void *pthread_getspecific (pthread_key_t @var{key}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c pthread_getspecific ok Return the thread-specific data associated with @var{key} in the calling thread. +@end deftypefun -@item int pthread_setspecific (pthread_key_t @var{key}, const void *@var{value}) +@deftypefun int pthread_setspecific (pthread_key_t @var{key}, const void *@var{value}) +@safety{@prelim{}@mtsafe{}@asunsafe{@asucorrupt{} @ascuheap{}}@acunsafe{@acucorrupt{} @acsmem{}}} +@c pthread_setspecific @asucorrupt @ascuheap @acucorrupt @acsmem +@c a level2 block may be allocated by a signal handler after +@c another call already made a decision to allocate it, thus losing +@c the allocated value. the seq number is updated before the +@c value, which might cause an earlier-generation value to seem +@c current if setspecific is cancelled or interrupted by a signal +@c KEY_UNUSED ok +@c calloc dup @ascuheap @acsmem Associate the thread-specific @var{value} with @var{key} in the calling thread. +@end deftypefun -@end table @node Non-POSIX Extensions @section Non-POSIX Extensions @@ -64,12 +85,28 @@ the standard. attributes used in the creation of threads in a process. @deftypefun int pthread_getattr_default_np (pthread_attr_t *@var{attr}) +@safety{@prelim{}@mtsafe{}@asunsafe{@asulock{}}@acunsafe{@aculock{}}} +@c Takes lock around read from default_pthread_attr. Get the default attribute values and set @var{attr} to match. This function returns @math{0} on success and a non-zero error code on failure. @end deftypefun @deftypefun int pthread_setattr_default_np (pthread_attr_t *@var{attr}) +@safety{@prelim{}@mtsafe{}@asunsafe{@ascuheap{} @asulock{}}@acunsafe{@aculock{} @acsmem{}}} +@c pthread_setattr_default_np @ascuheap @asulock @aculock @acsmem +@c check_sched_policy_attr ok +@c check_sched_priority_attr ok +@c sched_get_priority_min dup ok +@c sched_get_priority_max dup ok +@c check_cpuset_attr ok +@c determine_cpumask_size ok +@c check_stacksize_attr ok +@c lll_lock @asulock @aculock +@c free dup @ascuheap @acsmem +@c realloc dup @ascuheap @acsmem +@c memcpy dup ok +@c lll_unlock @asulock @aculock Set the default attribute values to match the values in @var{attr}. The function returns @math{0} on success and a non-zero error code on failure. The following error codes are defined for this function: @@ -82,3 +119,124 @@ attributes or the stack address is set in the attribute. The system does not have sufficient memory. @end table @end deftypefun + +@c FIXME these are undocumented: +@c pthread_atfork +@c pthread_attr_destroy +@c pthread_attr_getaffinity_np +@c pthread_attr_getdetachstate +@c pthread_attr_getguardsize +@c pthread_attr_getinheritsched +@c pthread_attr_getschedparam +@c pthread_attr_getschedpolicy +@c pthread_attr_getscope +@c pthread_attr_getstack +@c pthread_attr_getstackaddr +@c pthread_attr_getstacksize +@c pthread_attr_init +@c pthread_attr_setaffinity_np +@c pthread_attr_setdetachstate +@c pthread_attr_setguardsize +@c pthread_attr_setinheritsched +@c pthread_attr_setschedparam +@c pthread_attr_setschedpolicy +@c pthread_attr_setscope +@c pthread_attr_setstack +@c pthread_attr_setstackaddr +@c pthread_attr_setstacksize +@c pthread_barrierattr_destroy +@c pthread_barrierattr_getpshared +@c pthread_barrierattr_init +@c pthread_barrierattr_setpshared +@c pthread_barrier_destroy +@c pthread_barrier_init +@c pthread_barrier_wait +@c pthread_cancel +@c pthread_cleanup_push +@c pthread_cleanup_pop +@c pthread_condattr_destroy +@c pthread_condattr_getclock +@c pthread_condattr_getpshared +@c pthread_condattr_init +@c pthread_condattr_setclock +@c pthread_condattr_setpshared +@c pthread_cond_broadcast +@c pthread_cond_destroy +@c pthread_cond_init +@c pthread_cond_signal +@c pthread_cond_timedwait +@c pthread_cond_wait +@c pthread_create +@c pthread_detach +@c pthread_equal +@c pthread_exit +@c pthread_getaffinity_np +@c pthread_getattr_np +@c pthread_getconcurrency +@c pthread_getcpuclockid +@c pthread_getname_np +@c pthread_getschedparam +@c pthread_join +@c pthread_kill +@c pthread_kill_other_threads_np +@c pthread_mutexattr_destroy +@c pthread_mutexattr_getkind_np +@c pthread_mutexattr_getprioceiling +@c pthread_mutexattr_getprotocol +@c pthread_mutexattr_getpshared +@c pthread_mutexattr_getrobust +@c pthread_mutexattr_getrobust_np +@c pthread_mutexattr_gettype +@c pthread_mutexattr_init +@c pthread_mutexattr_setkind_np +@c pthread_mutexattr_setprioceiling +@c pthread_mutexattr_setprotocol +@c pthread_mutexattr_setpshared +@c pthread_mutexattr_setrobust +@c pthread_mutexattr_setrobust_np +@c pthread_mutexattr_settype +@c pthread_mutex_consistent +@c pthread_mutex_consistent_np +@c pthread_mutex_destroy +@c pthread_mutex_getprioceiling +@c pthread_mutex_init +@c pthread_mutex_lock +@c pthread_mutex_setprioceiling +@c pthread_mutex_timedlock +@c pthread_mutex_trylock +@c pthread_mutex_unlock +@c pthread_once +@c pthread_rwlockattr_destroy +@c pthread_rwlockattr_getkind_np +@c pthread_rwlockattr_getpshared +@c pthread_rwlockattr_init +@c pthread_rwlockattr_setkind_np +@c pthread_rwlockattr_setpshared +@c pthread_rwlock_destroy +@c pthread_rwlock_init +@c pthread_rwlock_rdlock +@c pthread_rwlock_timedrdlock +@c pthread_rwlock_timedwrlock +@c pthread_rwlock_tryrdlock +@c pthread_rwlock_trywrlock +@c pthread_rwlock_unlock +@c pthread_rwlock_wrlock +@c pthread_self +@c pthread_setaffinity_np +@c pthread_setcancelstate +@c pthread_setcanceltype +@c pthread_setconcurrency +@c pthread_setname_np +@c pthread_setschedparam +@c pthread_setschedprio +@c pthread_sigmask +@c pthread_sigqueue +@c pthread_spin_destroy +@c pthread_spin_init +@c pthread_spin_lock +@c pthread_spin_trylock +@c pthread_spin_unlock +@c pthread_testcancel +@c pthread_timedjoin_np +@c pthread_tryjoin_np +@c pthread_yield |