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Diffstat (limited to 'unix/os/doc/zopcpr.hlp')
| -rw-r--r-- | unix/os/doc/zopcpr.hlp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/unix/os/doc/zopcpr.hlp b/unix/os/doc/zopcpr.hlp new file mode 100644 index 00000000..4addc55a --- /dev/null +++ b/unix/os/doc/zopcpr.hlp @@ -0,0 +1,33 @@ +.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 |