/usr/src/blcr-0.8.2/tests/dpipe.c is in blcr-dkms 0.8.2-15ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | /*
* Berkeley Lab Checkpoint/Restart (BLCR) for Linux is Copyright (c)
* 2007, The Regents of the University of California, through Lawrence
* Berkeley National Laboratory (subject to receipt of any required
* approvals from the U.S. Dept. of Energy). All rights reserved.
*
* Portions may be copyrighted by others, as may be noted in specific
* copyright notices within specific files.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: dpipe.c,v 1.3 2008/08/29 21:36:53 phargrov Exp $
*
* Test of NON-empty dangling (external) pipes
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <pthread.h>
#include "crut.h"
enum {
MSG_CHILD_READY = 18,
MSG_PARENT_READY,
MSG_CHILD_DONE
};
static void sigpipe(int signo) {
fprintf(stderr, "%d exiting on SIGPIPE\n", getpid());
exit(-1);
}
static int
dpipe_setup(void **p)
{
const char msg1[4] = { MSG_CHILD_READY, 'a', 'b', 'c' };
const char msg2[4] = { MSG_PARENT_READY, 'A', 'B', 'C' };
struct crut_pipes *pipes = malloc(sizeof(struct crut_pipes));
int retval;
signal(SIGPIPE, &sigpipe);
CRUT_DEBUG("Creating pipes and forking.");
retval = crut_pipes_fork(pipes);
if (!retval) {
/* In the child */
crut_pipes_expect(pipes, MSG_PARENT_READY);
crut_pipes_write(pipes, msg1, sizeof(msg1));
exit(MSG_CHILD_DONE);
}
crut_pipes_write(pipes, msg2, sizeof(msg2));
crut_pipes_expect(pipes, MSG_CHILD_READY);
crut_waitpid_expect(pipes->child, MSG_CHILD_DONE);
*p = pipes;
return retval;
}
static int
dpipe_precheckpoint(void *p)
{
CRUT_DEBUG("Getting ready to checkpoint");
return 0;
}
static int
dpipe_continue(void *p)
{
CRUT_DEBUG("Continuing after checkpoint.");
return 0;
}
static int
dpipe_restart(void *p)
{
CRUT_DEBUG("Restarting from checkpoint.");
return 0;
}
int
main(int argc, char *argv[])
{
int ret;
struct crut_operations dpipe_test_ops = {
test_scope:CR_SCOPE_PROC,
test_name:"dpipe",
test_description:"Tests checkpoint of non-empty dangling (external) pipes.",
test_setup:dpipe_setup,
test_precheckpoint:dpipe_precheckpoint,
test_continue:dpipe_continue,
test_restart:dpipe_restart,
};
/* add the tests */
crut_add_test(&dpipe_test_ops);
ret = crut_main(argc, argv);
return ret;
}
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