+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/tests/lp_utils.c
+ *
+ * Author: You Feng <youfeng@clusterfs.com>
+ */
+
+#include <mpi.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <liblustre.h>
+#include "lustre/lustre_user.h"
+#include "lustre/tests/mpi/lp_utils.h"
+
+#define MAX_PROCESSES 8
+
+int verbose = 0;
+int debug = 0;
+
+char hostname[1024];
+
+struct timeval t1, t2;
+
+char *timestamp() {
+ static char datestring[80];
+ time_t timestamp;
+
+ fflush(stdout);
+ timestamp = time(NULL);
+ strftime(datestring, 80, "%T", localtime(×tamp));
+
+ return datestring;
+}
+
+inline void begin(char *str) {
+ if (verbose > 0 && rank == 0) {
+ gettimeofday(&t1, NULL);
+ printf("%s:\tBeginning %s\n", timestamp(), str);
+ fflush(stdout);
+ }
+}
+
+inline void end(char *str) {
+ float elapsed;
+
+ MPI_Barrier(MPI_COMM_WORLD);
+ if (verbose > 0 && rank == 0) {
+ gettimeofday(&t2, NULL);
+ elapsed = (t2.tv_sec + ((float)t2.tv_usec/1000000))
+ - (t1.tv_sec + ((float)t1.tv_usec/1000000));
+ if (elapsed >= 60) {
+ printf("%s:\tFinished %-15s(%.2f min)\n",
+ timestamp(), str, elapsed / 60);
+ } else {
+ printf("%s:\tFinished %-15s(%.3f sec)\n",
+ timestamp(), str, elapsed);
+
+ }
+ fflush(stdout);
+ }
+}
+
+void dump_diff(char *orig_buf, char *buf, int size, long _off)
+{
+ int i, diff, off;
+ char *p, *end;
+
+ printf("commpared buf size %d, at offset %lu\n\n", size, _off);
+
+ if (orig_buf) {
+ printf("original buf:\n");
+ p = orig_buf;
+ end = orig_buf + size;
+ i = 1;
+ while (p < end) {
+ printf(" %8lx", *(long *)p);
+ p += sizeof(long);
+ if (i++%8 == 0)
+ printf("\n");
+ }
+ if (i%8) printf("\n\n");
+ else printf("\n");
+ }
+
+ if (buf) {
+ printf("different data: diff_data(orig_data)\n");
+ diff = 0;
+ off = 0;
+ i = 1;
+ p = buf;
+ end = buf + size;
+ while (p < end) {
+ if (memcmp(p, orig_buf + off, sizeof(long)) != 0) {
+ printf("\toff: %5d,\tdata: %8lx (%8lx)\n", off,
+ *(unsigned long *)p,
+ *(unsigned long *)(orig_buf + off));
+ diff++;
+ }
+ off += sizeof(long);
+ p += sizeof(long);
+ }
+ printf("\n %d total differents found\n\n", diff);
+ }
+}
+
+void lp_gethostname(void)
+{
+ if (gethostname(hostname, 1024) == -1) {
+ fprintf(stderr, "gethostname: (%d)%s", errno, strerror(errno));
+ MPI_Abort(MPI_COMM_WORLD, 2);
+ }
+}
+
+/* This function does not FAIL if the requested "name" does not exit.
+ * This is just to clean up any files or directories left over from
+ * previous runs
+ */
+void remove_file_or_dir(char *name)
+{
+ struct stat statbuf;
+ char errmsg[MAX_FILENAME_LEN + 20];
+
+ if (stat(name, &statbuf) != -1) {
+ if (S_ISREG(statbuf.st_mode)) {
+ printf("stale file found\n");
+ if (unlink(name) == -1) {
+ sprintf(errmsg, "unlink of %s", name);
+ FAIL(errmsg);
+ }
+ }
+ if (S_ISDIR(statbuf.st_mode)) {
+ printf("stale directory found\n");
+ if (rmdir(name) == -1) {
+ sprintf(errmsg, "rmdir of %s", name);
+ FAIL(errmsg);
+ }
+ }
+ }
+}
+
+void create_file(char *name, long filesize, int fill)
+{
+ static char filename[MAX_FILENAME_LEN];
+ char errmsg[MAX_FILENAME_LEN + 20];
+ char buf[1024 * 8];
+ char c = 'A' + size;
+ int fd, rc;
+ short zero = 0;
+ long left = filesize;
+
+ /* Process 0 creates the test file(s) */
+ if (rank == 0) {
+ sprintf(filename, "%s/%s", testdir, name);
+ remove_file_or_dir(filename);
+ if ((fd = creat(filename, FILEMODE)) == -1) {
+ sprintf(errmsg, "create of file %s", filename);
+ FAIL(errmsg);
+ }
+ if (filesize > 0) {
+ if (lseek(fd, filesize - 1, SEEK_SET) == -1) {
+ close(fd);
+ sprintf(errmsg, "lseek of file %s", filename);
+ FAIL(errmsg);
+ }
+ if (write(fd, &zero, 1) == -1) {
+ close(fd);
+ sprintf(errmsg, "write of file %s", filename);
+ FAIL(errmsg);
+ }
+ }
+ if (filesize > 0 && fill) {
+ if (lseek(fd, 0, SEEK_SET) == -1) {
+ close(fd);
+ sprintf(errmsg, "lseek of file %s", filename);
+ FAIL(errmsg);
+ }
+ memset(buf, c, 1024);
+ while (left > 0) {
+ if ((rc = write(fd, buf,
+ left > (1024 * 8) ? (1024 * 8) : left))
+ == -1) {
+ close(fd);
+ sprintf(errmsg, "write of file %s", filename);
+ FAIL(errmsg);
+ }
+ left -= rc;
+ }
+ }
+ if (close(fd) == -1) {
+ sprintf(errmsg, "close of file %s", filename);
+ FAIL(errmsg);
+ }
+ }
+}
+
+void check_stat(char *filename, struct stat *state, struct stat *old_state)
+{
+ char errmsg[MAX_FILENAME_LEN+20];
+
+ if (stat(filename, state) == -1) {
+ sprintf(errmsg, "stat of file %s", filename);
+ FAIL(errmsg);
+ }
+
+ if (memcmp(state, old_state, sizeof(struct stat)) != 0) {
+ errno = 0;
+ sprintf(errmsg, LP_STAT_FMT, LP_STAT_ARGS);
+ FAIL(errmsg);
+ }
+}
+
+void remove_file(char *name)
+{
+ char filename[MAX_FILENAME_LEN];
+ char errmsg[MAX_FILENAME_LEN + 20];
+
+ /* Process 0 remove the file(s) */
+ if (rank == 0) {
+ sprintf(filename, "%s/%s", testdir, name);
+ if (unlink(filename) == -1) {
+ sprintf(errmsg, "unlink of file %s", filename);
+ FAIL(errmsg);
+ }
+ }
+}
+
+void fill_stride(char *buf, int buf_size, long long rank, long long _off)
+{
+ char *p = buf;
+ long long off, data[2];
+ int cp, left = buf_size;
+
+ data[0] = rank;
+ off = _off;
+ while (left > 0) {
+ data[1] = off;
+ cp = left > sizeof(data) ? sizeof(data) : left;
+ memcpy(p, data, cp);
+ off += cp;
+ p += cp;
+ left -= cp;
+ }
+}
git://git.whamcloud.com / fs / lustre-release.git / commitdiff