177 строки
4.7 KiB
C
177 строки
4.7 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2010 Oak Ridge National Laboratory.
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* All rights reserved.
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* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <dirent.h>
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#include "support.h"
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#include "opal/util/path.h"
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#include "opal/util/output.h"
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/*
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#define DEBUG
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*/
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#if !defined(__linux__)
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/* This test currently only works on Linux */
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int main(int argc, char* argv[])
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{
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return 77;
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}
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#else /* __linux__ */
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static void test(char* file, bool expect);
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static void get_mounts (int * num_dirs, char ** dirs[], bool ** nfs);
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int main(int argc, char* argv[])
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{
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int num_dirs;
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char ** dirs;
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bool * nfs;
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test_init("opal_path_nfs()");
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#ifdef DEBUG
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printf ("Test usage: ./opal_path_nfs [DIR]\n");
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printf ("On Linux interprets output from mount(8) to check for nfs and verify opal_path_nfs()\n");
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printf ("Additionally, you may specify multiple DIR on the cmd-line, of which you the output\n");
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#endif
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if (1 < argc) {
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int i;
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for (i = 1; i < argc; i++)
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printf ("Is dir[%d]:%s one of the detected network file systems? %s\n",
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i, argv[i], opal_path_nfs (argv[i]) ? "Yes": "No");
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}
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get_mounts (&num_dirs, &dirs, &nfs);
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while (num_dirs--) {
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test (dirs[num_dirs], nfs[num_dirs]);
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}
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/* All done */
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return test_finalize();
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}
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void test(char* file, bool expect)
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{
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#ifdef DEBUG
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printf ("test(): file:%s bool:%d\n",
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file, expect);
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#endif
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if (expect == opal_path_nfs (file)) {
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test_success();
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} else {
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char * msg;
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asprintf(&msg, "Mismatch: input \"%s\", expected:%d got:%d\n",
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file, expect, !expect);
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test_failure(msg);
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free(msg);
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}
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}
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void get_mounts (int * num_dirs, char ** dirs[], bool * nfs[])
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{
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#define MAX_DIR 256
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#define SIZE 1024
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char * cmd = "mount | cut -f3,5 -d' ' > opal_path_nfs.out";
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int rc;
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int i;
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FILE * file;
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char ** dirs_tmp;
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bool * nfs_tmp;
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char buffer[SIZE];
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rc = system (cmd);
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if (-1 == rc) {
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*num_dirs = 0;
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**dirs = NULL;
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*nfs = NULL;
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}
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dirs_tmp = (char**) malloc (MAX_DIR * sizeof(char**));
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nfs_tmp = (bool*) malloc (MAX_DIR * sizeof(bool));
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file = fopen("opal_path_nfs.out", "r");
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i = 0;
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rc = 4711;
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while (NULL != fgets (buffer, SIZE, file)) {
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int mount_known;
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char fs[MAXNAMLEN];
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dirs_tmp[i] = malloc (MAXNAMLEN);
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if (2 != (rc = sscanf (buffer, "%s %s\n", dirs_tmp[i], fs))) {
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goto out;
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}
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/*
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* rpc_pipefs is a FS mounted on /var/lib/nfs/rpc_pipefs for NFS4
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* Cannot distinguish it from NFS in opal_path_nfs, therefore just
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* disregard it, as it is NOT an parallel filesystem...
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*/
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if (0 == strcasecmp (fs, "rpc_pipefs"))
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continue;
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/*
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* Later mounts override earlier mounts
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* (e.g. nfs-mount of /, vs. initial rootfs-mount of /).
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*/
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for (mount_known = 0; mount_known < i; mount_known++) {
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/* If we know this mount-point, then exit early */
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if (0 == strcasecmp (dirs_tmp[mount_known], dirs_tmp[i])) {
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#ifdef DEBUG
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printf ("get_mounts: already know dir[%d]:%s\n",
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mount_known, dirs_tmp[mount_known]);
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#endif
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break;
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}
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}
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nfs_tmp[mount_known] = false;
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if (0 == strcasecmp (fs, "nfs") ||
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0 == strcasecmp (fs, "lustre") ||
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0 == strcasecmp (fs, "panfs") ||
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0 == strcasecmp (fs, "gpfs"))
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nfs_tmp[mount_known] = true;
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#ifdef DEBUG
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printf ("get_mounts: dirs[%d]:%s fs:%s nfs:%s\n",
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mount_known, dirs_tmp[mount_known],
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fs, nfs_tmp[mount_known] ? "Yes" : "No");
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#endif
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if (mount_known >= i)
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i++;
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}
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out:
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*num_dirs = i;
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*dirs = dirs_tmp;
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*nfs = nfs_tmp;
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}
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#endif /* __linux__ */
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