| wait.2 (108028) | wait.2 (108087) |
|---|---|
| 1.\" Copyright (c) 1980, 1991, 1993, 1994 2.\" The Regents of the University of California. 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, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)wait.2 8.2 (Berkeley) 4/19/94 | 1.\" Copyright (c) 1980, 1991, 1993, 1994 2.\" The Regents of the University of California. 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, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)wait.2 8.2 (Berkeley) 4/19/94 |
| 33.\" $FreeBSD: head/lib/libc/sys/wait.2 108028 2002-12-18 09:22:32Z ru $ | 33.\" $FreeBSD: head/lib/libc/sys/wait.2 108087 2002-12-19 09:40:28Z ru $ |
| 34.\" 35.Dd April 19, 1994 36.Dt WAIT 2 37.Os 38.Sh NAME 39.Nm wait , 40.Nm waitpid , 41.Nm wait4 , --- 35 unchanged lines hidden (view full) --- 77that need to wait for certain child processes, 78that need resource utilization statistics accumulated by child processes, 79or that require options. 80The other wait functions are implemented using 81.Fn wait4 . 82.Pp 83The 84.Fa wpid | 34.\" 35.Dd April 19, 1994 36.Dt WAIT 2 37.Os 38.Sh NAME 39.Nm wait , 40.Nm waitpid , 41.Nm wait4 , --- 35 unchanged lines hidden (view full) --- 77that need to wait for certain child processes, 78that need resource utilization statistics accumulated by child processes, 79or that require options. 80The other wait functions are implemented using 81.Fn wait4 . 82.Pp 83The 84.Fa wpid |
| 85parameter specifies the set of child processes for which to wait. | 85argument specifies the set of child processes for which to wait. |
| 86If 87.Fa wpid 88is -1, the call waits for any child process. 89If 90.Fa wpid 91is 0, 92the call waits for any child process in the process group of the caller. 93If 94.Fa wpid 95is greater than zero, the call waits for the process with process id 96.Fa wpid . 97If 98.Fa wpid 99is less than -1, the call waits for any process whose process group id 100equals the absolute value of 101.Fa wpid . 102.Pp 103The 104.Fa status | 86If 87.Fa wpid 88is -1, the call waits for any child process. 89If 90.Fa wpid 91is 0, 92the call waits for any child process in the process group of the caller. 93If 94.Fa wpid 95is greater than zero, the call waits for the process with process id 96.Fa wpid . 97If 98.Fa wpid 99is less than -1, the call waits for any process whose process group id 100equals the absolute value of 101.Fa wpid . 102.Pp 103The 104.Fa status |
| 105parameter is defined below. The | 105argument is defined below. The |
| 106.Fa options | 106.Fa options |
| 107parameter contains the bitwise OR of any of the following options. | 107argument contains the bitwise OR of any of the following options. |
| 108The 109.Dv WCONTINUED 110option indicates that children of the current process that 111have continued from a job control stop, by receiving a 112.Dv SIGCONT 113signal, should also have their status reported. 114The 115.Dv WNOHANG --- 158 unchanged lines hidden (view full) --- 274.It Bq Er ECHILD 275The calling process has no existing unwaited-for 276child processes. 277.It Bq Er EFAULT 278The 279.Fa status 280or 281.Fa rusage | 108The 109.Dv WCONTINUED 110option indicates that children of the current process that 111have continued from a job control stop, by receiving a 112.Dv SIGCONT 113signal, should also have their status reported. 114The 115.Dv WNOHANG --- 158 unchanged lines hidden (view full) --- 274.It Bq Er ECHILD 275The calling process has no existing unwaited-for 276child processes. 277.It Bq Er EFAULT 278The 279.Fa status 280or 281.Fa rusage |
| 282arguments point to an illegal address. | 282argument points to an illegal address. |
| 283(May not be detected before exit of a child process.) 284.It Bq Er EINTR 285The call was interrupted by a caught signal, 286or the signal did not have the 287.Dv SA_RESTART 288flag set. 289.El 290.Sh STANDARDS --- 25 unchanged lines hidden --- | 283(May not be detected before exit of a child process.) 284.It Bq Er EINTR 285The call was interrupted by a caught signal, 286or the signal did not have the 287.Dv SA_RESTART 288flag set. 289.El 290.Sh STANDARDS --- 25 unchanged lines hidden --- |