NAME

m_park_procs, m_rele_procs − suspend and resume child process execution

SYNOPSIS

C syntax:

#include <parallel/microtask.h>
m_park_procs();
(serial code)
m_rele_procs();

Pascal syntax

procedure m_park_procs ;
cexternal ;
procedure m_rele_procs ;
cexternal ;

FORTRAN syntax

subroutine m_park_procs
subroutine m_rele_procs

DESCRIPTION

The m_park_procs routine suspends execution of child processes created by an m_fork call. Typically, you would suspend child processes while the parent process is doing extensive I/O or setting up another phase of the program.  The m_rele_procs routine resumes child process execution when the child processes are again required. 

Do not call m_park_procs when m_fork is executing.  Likewise, do not call m_park_procs when the child processes are already suspended.  To suspend child process execution within an m_fork call, use m_single and m_next. 

ERRORS

These routines can return the following error:

[EINVAL] The routine was called in an inappropriate context.  For example, the routine was called from a subprogram executing in an m_fork call, or the processes were already suspended. 

SEE ALSO

m_single(3P), Guide to Parallel Programming

DYNIX