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OpenSolaris 2009.06 - man page for librt (opensolaris section 3lib)

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librt(3LIB)			       Interface Libraries			      librt(3LIB)

       librt, libposix4 - POSIX.1b Realtime Extensions library

       cc [ flag... ] file... -lrt [ library... ]

       Historically,  functions  in this library provided many of the interfaces specified by the
       POSIX.1b  Realtime  Extension.	See  standards(5).  This  functionality  now  resides  in

       This library is maintained to provide backward compatibility for both runtime and compila-
       tion environments. The shared	  object is implemented as a  filter  on  libc.so.1.  New
       application development need not specify -lrt.

       The  shared  objects  librt.so.1  and libposix4.so.1 provide the public interfaces defined
       below. See Intro(3) for additional information on shared object interfaces.

       aio_cancel		     aio_error
       aio_fsync		     aio_read
       aio_return		     aio_suspend
       aio_waitn		     aio_write
       clock_getres		     clock_gettime
       clock_nanosleep		     clock_settime
       close			     fdatasync
       fork			     lio_listio
       mq_close 		     mq_getattr
       mq_notify		     mq_open
       mq_receive		     mq_reltimedreceive_np
       mq_reltimedsend_np	     mq_send
       mq_setattr		     mq_timedreceive
       mq_timedsend		     mq_unlink
       nanosleep		     sched_get_priority_max
       sched_get_priority_min	     sched_getparam
       sched_getscheduler	     sched_rr_get_interval
       sched_setparam		     sched_setscheduler
       sched_yield		     sem_close
       sem_destroy		     sem_getvalue
       sem_init 		     sem_open
       sem_post 		     sem_reltimedwait_np
       sem_timedwait		     sem_trywait
       sem_unlink		     sem_wait
       shm_open 		     shm_unlink
       sigqueue 		     sigtimedwait
       sigwaitinfo		     timer_create
       timer_delete		     timer_getoverrun
       timer_gettime		     timer_settime

       The following interfaces are unique to the 32-bit version of this library:

       aio_cancel64		     aio_error64
       aio_fsync64		     aio_read64
       aio_return64		     aio_suspend64
       aio_waitn64		     aio_write64

       /lib/librt.so.1		 shared object

       /lib/64/librt.so.1	 64-bit shared object file

       /lib/libposix4.so.1	 shared object

       /lib/64/libposix4.so.1	 64-bit shared object file

       See attributes(5) for descriptions of the following attributes:

       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       |Availability		     |SUNWcsl (32-bit)		   |
       |			     |SUNWcslx (64-bit) 	   |
       |MT-Level		     |Safe			   |

       pvs(1), Intro(3), libc(3LIB), attributes(5), standards(5)

SunOS 5.11				    5 Feb 2008				      librt(3LIB)
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