man pages section 3: Threads and Realtime Library Functions
    
R
 
 read or write asynchronous I/O operations
  - aioread ( Index Term Link )
  - aiowrite ( Index Term Link )
 
 reading and writing thread registers in libthread_db
  - td_thr_getfpregs ( Index Term Link )
  - td_thr_getgregs ( Index Term Link )
  - td_thr_getxregs ( Index Term Link )
  - td_thr_getxregsize ( Index Term Link )
  - td_thr_setfpregs ( Index Term Link )
  - td_thr_setgregs ( Index Term Link )
  - td_thr_setxregs ( Index Term Link )
 
 register fork handlers - pthread_atfork ( Index Term Link )
 
 return credential information associated with the client - door_cred ( Index Term Link ) ( Index Term Link )
 
 return from a door invocation - door_return ( Index Term Link )
 
 return information associated with a door descriptor - door_info ( Index Term Link ) ( Index Term Link )
 
 return the synchronization handle for the object on which a thread is blocked - td_thr_sleepinfo ( Index Term Link )
 
 revoke access to a door descriptor - door_revoke ( Index Term Link ) ( Index Term Link )
 
 routines that access the target process register in libthread_db
  - ps_lgetfpregs ( Index Term Link )
  - ps_lgetregs ( Index Term Link )
  - ps_lgetxregs ( Index Term Link )
  - ps_lgetxregsize ( Index Term Link )
  - ps_lsetfpregs ( Index Term Link )
  - ps_lsetregs ( Index Term Link )
  - ps_lsetxregs ( Index Term Link )
 
 rw_rdlock() - acquire a read lock ( Index Term Link )
 
 rw_tryrdlock() - acquire a read lock ( Index Term Link )
 
 rw_trywrlock() - acquire a write lock ( Index Term Link )
 
 rw_unlock() - unlock a readers/writer lock ( Index Term Link )
 
 rw_wrlock() - acquire a write lock ( Index Term Link )
 
 rwlock_destroy() - destroy a readers/writer lock ( Index Term Link )
 
 rwlock_init() - initialize a readers/writer lock ( Index Term Link )