diff options
Diffstat (limited to 'lib/libc/sys/wait.2')
| -rw-r--r-- | lib/libc/sys/wait.2 | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/lib/libc/sys/wait.2 b/lib/libc/sys/wait.2 index 304824d..b1c599d 100644 --- a/lib/libc/sys/wait.2 +++ b/lib/libc/sys/wait.2 @@ -32,7 +32,7 @@ .\" @(#)wait.2 8.2 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" -.Dd April 19, 1994 +.Dd November 12, 2005 .Dt WAIT 2 .Os .Sh NAME @@ -234,25 +234,33 @@ see .Xr intro 2 , System call restart. .Pp -The implementation queues one SIGCHLD signal for each child process whose +The implementation queues one +.Dv SIGCHLD +signal for each child process whose status has changed, if .Fn wait returns because the status of a child process is available, the pending SIGCHLD signal associated with the process ID of the child process will -be discarded. Any other pending SIGCHLD signals remain pending. +be discarded. +Any other pending +.Dv SIGCHLD +signals remain pending. .Pp -If SIGCHLD is blocked, +If +.Dv SIGCHLD +is blocked, .Fn wait returns because the status of a child process is available, the pending -SIGCHLD signal will be cleared unless another status of the child process +.Dv SIGCHLD +signal will be cleared unless another status of the child process is available. .Sh RETURN VALUES If .Fn wait -returns due to a stopped, continued, +returns due to a stopped, continued, or terminated child process, the process ID of the child is returned to the calling process. -Otherwise, a value of -1 +Otherwise, a value of \-1 is returned and .Va errno is set to indicate the error. |
