POSIX不支持接口
Huawei LiteOS的POSIX接口中，有一些未支持，具体参见下表。
| 头文件 | 接口名 |
|---|---|
| mqueue.h | mq_notify |
| pthread.h | pthread_atfork |
| pthread.h | pthread_attr_getguardsize |
| pthread.h | pthread_attr_getstack |
| pthread.h | pthread_attr_setguardsize |
| pthread.h | pthread_attr_setstack |
| pthread.h | pthread_barrier_destroy |
| pthread.h | pthread_barrier_init |
| pthread.h | pthread_barrier_wait |
| pthread.h | pthread_barrierattr_destroy |
| pthread.h | pthread_barrierattr_getpshared |
| pthread.h | pthread_barrierattr_init |
| pthread.h | pthread_barrierattr_setpshared |
| pthread.h | pthread_getconcurrency |
| pthread.h | pthread_getcpuclockid |
| pthread.h | pthread_mutex_consistent |
| pthread.h | pthread_mutexattr_getpshared |
| pthread.h | pthread_mutexattr_getrobust |
| pthread.h | pthread_mutexattr_setpshared |
| pthread.h | pthread_mutexattr_setrobust |
| pthread.h | pthread_rwlock_destroy |
| pthread.h | pthread_rwlock_init |
| pthread.h | pthread_rwlock_rdlock |
| pthread.h | pthread_rwlock_timedrdlock |
| pthread.h | pthread_rwlock_timedwrlock |
| pthread.h | pthread_rwlock_tryrdlock |
| pthread.h | pthread_rwlock_trywrlock |
| pthread.h | pthread_rwlock_unlock |
| pthread.h | pthread_rwlock_wrlock |
| pthread.h | pthread_rwlockattr_destroy |
| pthread.h | pthread_rwlockattr_getpshared |
| pthread.h | pthread_rwlockattr_init |
| pthread.h | pthread_rwlockattr_setpshared |
| pthread.h | pthread_setconcurrency |
| pthread.h | pthread_spin_destroy |
| pthread.h | pthread_spin_init |
| pthread.h | pthread_spin_lock |
| pthread.h | pthread_spin_trylock |
| pthread.h | pthread_spin_unlock |
| sched.h | sched_getparam |
| sched.h | sched_getscheduler |
| sched.h | sched_rr_get_interval |
| sched.h | sched_setparam |
| sched.h | sched_setscheduler |
| sem.h | semctl |
| sem.h | semget |
| sem.h | semop |
| semaphore.h | sem_close |
| semaphore.h | sem_open |
| semaphore.h | sem_unlink |
| signal.h | kill |
| signal.h | killpg |
| signal.h | psiginfo |
| signal.h | psignal |
| signal.h | pthread_kill |
| signal.h | pthread_sigmask |
| signal.h | raise |
| signal.h | sigaction |
| signal.h | sigaddset |
| signal.h | sigaltstack |
| signal.h | sigdelset |
| signal.h | sigemptyset |
| signal.h | sigfillset |
| signal.h | sighold |
| signal.h | sigignore |
| signal.h | siginterrupt |
| signal.h | sigismember |
| signal.h | sigpause |
| signal.h | sigpending |
| signal.h | sigprocmask |
| signal.h | sigqueue |
| signal.h | sigrelse |
| signal.h | sigsuspend |
| signal.h | sigtimedwait |
| signal.h | sigwait |
| signal.h | sigwaitinfo |
| signalfd.h | signalfd |
