projects / apple / libpthread.git / blame
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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 | |
| 9 | .\" the first lines of this file unmodified other than the possible | |
| 10 | .\" addition of one or more copyright notices. | |
| 11 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
| 12 | .\" notice(s), this list of conditions and the following disclaimer in | |
| 13 | .\" the documentation and/or other materials provided with the | |
| 14 | .\" distribution. | |
| 15 | .\" | |
| 16 | .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY | |
| 17 | .\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 19 | .\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE | |
| 20 | .\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 | .\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 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: src/lib/libc_r/man/pthread_condattr.3,v 1.9 2001/10/01 16:09:09 ru Exp $ | |
| 29 | .Dd April 28, 2000 | |
| 30 | .Dt PTHREAD_CONDATTR 3 | |
| 31 | .Os | |
| 32 | .Sh NAME | |
| 33 | .Nm pthread_condattr_destroy , | |
| 34 | .Nm pthread_condattr_init | |
| 35 | .Nd condition attribute operations | |
| 36 | .Sh SYNOPSIS | |
| 37 | .In pthread.h | |
| 38 | .Ft int | |
| 39 | .Fo pthread_condattr_destroy | |
| 40 | .Fa "pthread_condattr_t *attr" | |
| 41 | .Fc | |
| 42 | .Ft int | |
| 43 | .Fo pthread_condattr_init | |
| 44 | .Fa "pthread_condattr_t *attr" | |
| 45 | .Fc | |
| 46 | .Sh DESCRIPTION | |
| 47 | Condition attribute objects are used to specify parameters to | |
| 48 | .Fn pthread_cond_init . | |
| 49 | .Fx Ns 's | |
| 50 | implementation of conditions does not support any non-default | |
| 51 | attributes, so these functions are not very useful, though they are required to | |
| 52 | to be present by | |
| 53 | .Tn POSIX . | |
| 54 | .Pp | |
| 55 | The | |
| 56 | .Fn pthread_condattr_init | |
| 57 | function initializes a condition attribute object with the default attributes. | |
| 58 | .Pp | |
| 59 | The | |
| 60 | .Fn pthread_condattr_destroy | |
| 61 | function destroys a condition attribute object. | |
| 62 | .Sh RETURN VALUES | |
| 63 | If successful, these functions return 0. | |
| 64 | Otherwise, an error number is returned to indicate the error. | |
| 65 | .Sh ERRORS | |
| 66 | .Fn pthread_condattr_destroy | |
| 67 | will fail if: | |
| 68 | .Bl -tag -width Er | |
| 69 | .It Bq Er EINVAL | |
| 70 | Invalid value for | |
| 71 | .Fa attr . | |
| 72 | .El | |
| 73 | .Pp | |
| 74 | .Fn pthread_condattr_init | |
| 75 | will fail if: | |
| 76 | .Bl -tag -width Er | |
| 77 | .It Bq Er ENOMEM | |
| 78 | Out of memory. | |
| 79 | .El | |
| 80 | .Sh SEE ALSO | |
| 81 | .Xr pthread_cond_init 3 | |
| 82 | .Sh STANDARDS | |
| 83 | .Fn pthread_condattr_init | |
| 84 | and | |
| 85 | .Fn pthread_condattr_destroy | |
| 86 | conform to | |
| 87 | .St -p1003.1-96 |