libposix4(3LIB)
Name
librt, libposix4 - POSIX.1b Realtime Extensions library
Synopsis
cc [ flag... ] file... –lrt [ library... ]
Description
Historically, functions in this library provided many of the interfaces specified by the POSIX.1b Realtime Extension. See standards(7). This functionality
now resides in libc(3LIB).
This library is maintained to provide backward compatibility for both runtime and compilation environments. The shared object is implemented as a filter on libc.so.1. New application development need not specify –lrt.
INTERFACES
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
|
lio_listio64
|
|
|
Files
- /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
Attributes
See attributes(7) for descriptions of the following attributes:
|
|
Availability
|
system/library
|
MT-Level
|
Safe
|
|
See Also
pvs(1), libc(3LIB), intro(3), attributes(7), standards(7)