blob: 4addc55afeb52e920b31cbe424a537736c7728fd (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
.help zopcpr May84 "System Interface"
.ih
NAME
zopcpr -- open a connected subprocess
.ih
SYNOPSIS
.nf
zopcpr (process_file, inchan, outchan, pid)
packed char process_file[] # executable file
int inchan # input from child
int outchan # output to child
int pid # pid of child
.fi
.ih
DESCRIPTION
The executable file \fIprocess_file\fR is spawned as a child process and
connected to the parent via the IPC (inter-process communication) channels
\fIinchan\fR and \fIoutchan\fR.
.ih
RETURN VALUE
ERR is returned if the named subprocess cannot be connected. If the connection
succeeds the process-id of the child is returned in \fIpid\fR.
.ih
NOTES
Only the IPC driver may be used to read and write the IPC channels.
A process spawned with \fBzopcpr\fR must be closed with \fBzclcpr\fR.
On a multi-processor system the OSFN \fIprocess_file\fR may be used to
specify the processor on which the child process is to be spawned.
.ih
SEE ALSO
zclcpr, zintpr, zopdpr
.endhelp
|
