91 строка
2.3 KiB
C
91 строка
2.3 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "ompi_config.h"
|
|
#include "mpi.h"
|
|
#include "orte/runtime/orte_wait.h"
|
|
#include "opal/runtime/opal_progress.h"
|
|
#include "runtime/runtime.h"
|
|
|
|
#ifdef HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
int count = 0;
|
|
|
|
static void callback(pid_t pid, int status, void *data)
|
|
{
|
|
printf("callback for %d, %d\n", pid, status);
|
|
count--;
|
|
}
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
pid_t pid, ret;
|
|
int status = -1;
|
|
|
|
orte_init(true);
|
|
|
|
pid = fork();
|
|
if (pid > 0) {
|
|
count++;
|
|
printf("parent launched child #1 PID %d\n", pid);
|
|
orte_wait_cb(pid, callback, NULL);
|
|
} else {
|
|
printf("child pid %d sleeping 10 seconds\n", getpid());
|
|
sleep(10);
|
|
printf("pid %d exiting after sleeping 10 seconds\n", getpid());
|
|
exit(0);
|
|
}
|
|
|
|
pid = fork();
|
|
if (pid > 0) {
|
|
printf("parent launched child #2 PID %d\n", pid);
|
|
ret = orte_waitpid(pid, &status, 0);
|
|
printf("pid %d waitpid, status %d\n", ret, status);
|
|
} else {
|
|
printf("child pid %d sleeping 5 seconds\n", getpid());
|
|
sleep(5);
|
|
printf("pid %d exiting after sleeping 5 seconds\n", getpid());
|
|
exit(0);
|
|
}
|
|
|
|
pid = fork();
|
|
if (pid > 0) {
|
|
count++;
|
|
printf("parent launched child #3 PID %d\n", pid);
|
|
orte_wait_cb(pid, callback, NULL);
|
|
} else {
|
|
printf("pid %d exiting after not sleeping at all\n", getpid());
|
|
exit(0);
|
|
}
|
|
|
|
while (count > 0) {
|
|
opal_progress();
|
|
}
|
|
|
|
orte_finalize();
|
|
return 0;
|
|
}
|