/usr/src/blcr-0.8.5/tests/get_info.c is in blcr-dkms 0.8.5-2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | /*
* 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: get_info.c,v 1.9 2008/08/29 21:36:53 phargrov Exp $
*
* crut-based test for cr_get_{checkpoint,restart}_info() functions.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/limits.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include "libcr.h"
#include "crut.h"
static char *filename = NULL;
/* Callback to verify checkpoint info */
static int my_callback_chkpt(void* arg)
{
const struct cr_checkpoint_info *chkpt_info;
int status, rc;
chkpt_info = cr_get_checkpoint_info();
status = CR_CHECKPOINT_READY;
if (!chkpt_info) {
fprintf(stderr, "NULL checkpoint info\n");
status = CR_CHECKPOINT_PERM_FAILURE;
}
if (strcmp(chkpt_info->dest, filename)) {
fprintf(stderr, "Destination filename mismatch\nWant '%s'\nGot '%s'\n", filename, chkpt_info->dest);
status = CR_CHECKPOINT_PERM_FAILURE;
}
if (chkpt_info->signal != 0) {
fprintf(stderr, "Unexpected non-zero signal\n");
status = CR_CHECKPOINT_PERM_FAILURE;
}
rc = cr_checkpoint(status);
return 0;
}
/* Callback to verify restart info */
static int my_callback_rstrt(void* arg)
{
const struct cr_restart_info *rstrt_info;
int status, rc;
rc = cr_checkpoint(CR_CHECKPOINT_READY);
status = CR_CHECKPOINT_READY;
if (rc > 0) { /* Restart */
rstrt_info = cr_get_restart_info();
if (!rstrt_info) {
fprintf(stderr, "NULL checkpoint info\n");
status = CR_CHECKPOINT_PERM_FAILURE;
}
if (strcmp(rstrt_info->src, filename)) {
fprintf(stderr, "Source filename mismatch\nWant '%s'\nGot '%s'\n", filename, rstrt_info->src);
status = CR_CHECKPOINT_PERM_FAILURE;
}
/* The kill(pid,0) will check for an existing process w/ same uid */
if ((rstrt_info->requester <= 0) || kill(rstrt_info->requester, 0)) {
fprintf(stderr, "Invalid requester %d\n", rstrt_info->requester);
status = CR_CHECKPOINT_PERM_FAILURE;
}
}
return status;
}
static int
get_info_setup_generic(void **testdata, cr_callback_t cb)
{
size_t alloc_size= PATH_MAX+1;
int rc, pid;
CRUT_DEBUG("Initializing get_info.");
filename = malloc(alloc_size);
pid = getpid();
if (pid < 0) {
perror("getpid");
return -1;
}
filename = getcwd(filename, alloc_size);
if ((filename == NULL) || (*filename == '\0')) {
perror("getcwd");
return -1;
}
filename = crut_sappendf(filename, "/context.%d", pid);
rc = (int)cr_init();
rc = (int)cr_register_callback(cb, NULL, CR_THREAD_CONTEXT);
*testdata = NULL;
return 0;
}
static int get_info_setup_chkpt(void **testdata)
{ return get_info_setup_generic(testdata, my_callback_chkpt); }
static int get_info_setup_rstrt(void **testdata)
{ return get_info_setup_generic(testdata, my_callback_rstrt); }
static int
get_info_precheckpoint(void *p)
{
return 0;
}
static int
get_info_continue(void *p)
{
CRUT_DEBUG("Continuing after checkpoint.");
return 0;
}
static int
get_info_restart(void *p)
{
CRUT_DEBUG("Restarting from checkpoint.");
return 0;
}
static int
get_info_teardown(void *p)
{
free(filename);
return 0;
}
int
main(int argc, char *argv[])
{
int ret;
struct crut_operations chkpt_test_ops = {
test_scope:CR_SCOPE_PROC,
test_name:"cr_get_checkpoint_info",
test_description:"cr_get_checkpoint_info() validation test.",
test_setup:get_info_setup_chkpt,
test_precheckpoint:get_info_precheckpoint,
test_continue:get_info_continue,
test_restart:get_info_restart,
test_teardown:get_info_teardown,
};
struct crut_operations rstrt_test_ops = {
test_scope:CR_SCOPE_PROC,
test_name:"cr_get_restart_info",
test_description:"cr_get_restart_info() validation test.",
test_setup:get_info_setup_rstrt,
test_precheckpoint:get_info_precheckpoint,
test_continue:get_info_continue,
test_restart:get_info_restart,
test_teardown:get_info_teardown,
};
/* add the basic tests */
crut_add_test(&chkpt_test_ops);
crut_add_test(&rstrt_test_ops);
ret = crut_main(argc, argv);
return ret;
}
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