| sem_init.3 (a455039e3a2e6a9209a0dd1313e4a7e9c25fdb2c) | sem_init.3 (7bf27b2dde45e09ea60028de94ccabdc8bd1d1d3) |
|---|---|
| 1.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as --- 13 unchanged lines hidden (view full) --- 22.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 26.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" | 1.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as --- 13 unchanged lines hidden (view full) --- 22.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 26.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" |
| 30.Dd January 7, 2010 | 30.Dd January 9, 2010 |
| 31.Dt SEM_INIT 3 32.Os 33.Sh NAME 34.Nm sem_init 35.Nd initialize an unnamed semaphore 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS --- 8 unchanged lines hidden (view full) --- 47to have the value 48.Fa value . 49.Pp 50A non-zero value for 51.Fa pshared 52specifies a shared semaphore that can be used by multiple processes, 53the semaphore should be located in shared memory region (see 54.Xr mmap 2 , | 31.Dt SEM_INIT 3 32.Os 33.Sh NAME 34.Nm sem_init 35.Nd initialize an unnamed semaphore 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS --- 8 unchanged lines hidden (view full) --- 47to have the value 48.Fa value . 49.Pp 50A non-zero value for 51.Fa pshared 52specifies a shared semaphore that can be used by multiple processes, 53the semaphore should be located in shared memory region (see 54.Xr mmap 2 , |
| 55.Xr shm_open 2 , | 55.Xr shm_open 2 , |
| 56and 57.Xr shmget 2 ) , 58any process having read and write access to address 59.Fa sem 60can perform semaphore operations on 61.Fa sem . 62.Pp 63Following a successful call to --- 39 unchanged lines hidden --- | 56and 57.Xr shmget 2 ) , 58any process having read and write access to address 59.Fa sem 60can perform semaphore operations on 61.Fa sem . 62.Pp 63Following a successful call to --- 39 unchanged lines hidden --- |