PTHREAD_MUTEX_DESTROY (man3p)
pthread_mutex_destroy, pthread_mutex_init — destroy and initialize a mutex
pthread_mutex_destroy, pthread_mutex_init — destroy and initialize a mutex
memcpy — copy bytes in memory
posix_spawnp — spawn a process (ADVANCED REALTIME)
tmpfile — create a temporary file
endservent, getservbyname, getservbyport, getservent, setservent — network services database functions
pthread_mutexattr_setprotocol — set the protocol attribute of the mutex attributes object (REALTIME THREADS)
pthread_attr_setschedpolicy — set the schedpolicy attribute (REALTIME THREADS)
isalnum, isalnum_l — test for an alphanumeric character
asinl — arc sine function
posix_spawnattr_setschedpolicy — set the spawn-schedpolicy attribute of a spawn attributes object (ADVANCED REALTIME)