+/* -*- 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.
+ */
#include <stdio.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
- char *sfile, *tfile;
- struct stat stbuf;
- int size;
- int infd, outfd;
- int sd[2];
- int rc;
- char *buf;
- char cmd[1024];
- int page_size = sysconf(_SC_PAGESIZE);
- loff_t pos;
-
- if (argc < 3) {
- fprintf(stderr, "%s <source file> <dest file>\n", argv[0]);
- exit(-1);
- }
-
- sfile = argv[1];
- tfile = argv[2];
-
- if (stat(sfile, &stbuf) < 0) {
- if (errno == ENOENT) {
- /* assume doing non-object file testing */
- infd = open(sfile, O_LOV_DELAY_CREATE|O_CREAT|O_RDWR,
- 0644);
- if (infd < 0)
- syserr("open source file:");
-
- size = random() % (1 * 1024 * 1024) + 1024;
- if (ftruncate(infd, (off_t)size) < 0)
- syserr("truncate file error:");
- } else {
- syserr("stat file: ");
- }
- } else if (S_ISREG(stbuf.st_mode)) {
- size = (int)stbuf.st_size;
- infd = open(sfile, O_RDONLY, 0644);
- if (infd < 0)
- syserr("Open an existing file error:");
- } else {
- fprintf(stderr, "%s is not a regular file\n", sfile);
- exit(-1);
- }
-
- outfd = open(tfile, O_WRONLY|O_TRUNC|O_CREAT, 0666);
- if (outfd < 0)
- syserr("open dest file:");
-
- rc = socketpair(AF_LOCAL, SOCK_STREAM, 0, sd);
- if (rc < 0)
- syserr("socketpair");
-
- pos = 0;
- while (size > 0) {
- int rc2;
- size_t seg_size;
-
- seg_size = (size < page_size) ? size : (random() % size + 1);
- if (seg_size > 4 * page_size)
- seg_size = 4 * page_size;
- rc = sendfile(sd[0], infd, &pos, seg_size);
- if (rc < 0)
- syserr("sendfile:");
-
- size -= seg_size;
- if (size == 0)
- close(sd[0]);
-
- buf = malloc(seg_size);
- rc = read(sd[1], buf, seg_size);
- if (rc != seg_size)
- syserr("read from socket:");
-
- rc2 = write(outfd, buf, rc);
- if (rc2 != rc)
- syserr("write dest file error:");
- free(buf);
- }
- close(sd[1]), close(infd), close(outfd);
-
- sprintf(cmd, "cmp %s %s\n", sfile, tfile);
- return system(cmd);
+ char *sfile, *tfile;
+ struct stat stbuf;
+ int size;
+ unsigned long bufsize = 1024 * 1024;
+ int infd, outfd;
+ int sd[2];
+ int rc;
+ char *buf;
+ char cmd[1024];
+ loff_t pos;
+
+ if (argc < 3) {
+ fprintf(stderr, "%s <source file> <dest file>\n", argv[0]);
+ exit(-1);
+ }
+
+ sfile = argv[1];
+ tfile = argv[2];
+
+ if (stat(sfile, &stbuf) < 0) {
+ if (errno == ENOENT) {
+ /* assume doing non-object file testing */
+ infd = open(sfile, O_LOV_DELAY_CREATE|O_CREAT|O_RDWR,
+ 0644);
+ if (infd < 0)
+ syserr("open source file:");
+
+ size = random() % (1 * 1024 * 1024) + 1024;
+ if (ftruncate(infd, (off_t)size) < 0)
+ syserr("truncate file error:");
+ } else {
+ syserr("stat file: ");
+ }
+ } else if (S_ISREG(stbuf.st_mode)) {
+ size = (int)stbuf.st_size;
+ infd = open(sfile, O_RDONLY, 0644);
+ if (infd < 0)
+ syserr("Open an existing file error:");
+ } else {
+ fprintf(stderr, "%s is not a regular file\n", sfile);
+ exit(-1);
+ }
+
+ outfd = open(tfile, O_WRONLY|O_TRUNC|O_CREAT, 0666);
+ if (outfd < 0)
+ syserr("open dest file:");
+
+ rc = socketpair(AF_LOCAL, SOCK_STREAM, 0, sd);
+ if (rc < 0)
+ syserr("socketpair");
+
+ rc = fcntl(sd[0], F_SETFL, O_NONBLOCK);
+ if (rc < 0)
+ syserr("fcntl");
+
+ rc = setsockopt(sd[0], SOL_SOCKET, SO_SNDBUF,
+ &bufsize, sizeof(bufsize));
+ if (rc)
+ syserr("setsockopt");
+
+ srandom(time(NULL));
+
+ pos = 0;
+ while (size > 0) {
+ int rc2;
+ size_t seg_size;
+
+ seg_size = random() % bufsize + 1;
+ if (seg_size > size)
+ seg_size = size;
+
+ while (seg_size) {
+ rc = sendfile(sd[0], infd, &pos, seg_size);
+ if (rc < 0)
+ syserr("sendfile:");
+
+ seg_size -= rc;
+ size -= rc;
+ if (size == 0)
+ close(sd[0]);
+
+ buf = malloc(rc);
+ if (read(sd[1], buf, rc) < 0)
+ syserr("read from socket:");
+
+ rc2 = write(outfd, buf, rc);
+ if (rc2 != rc)
+ syserr("write dest file error:");
+ free(buf);
+ }
+ }
+ close(sd[1]), close(infd), close(outfd);
+
+ sprintf(cmd, "cmp %s %s\n", sfile, tfile);
+ return system(cmd);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff