Branch HEAD

[fs/lustre-release.git] / lustre / tests / multiop.c

diff --git a/lustre/tests/multiop.c b/lustre/tests/multiop.c
index 3bd2128..e906af6 100755 (executable)
--- a/lustre/tests/multiop.c
+++ b/lustre/tests/multiop.c
@@ -1,6 +1,39 @@
 /* -*- 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.
+ */
+
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE /* pull in O_DIRECTORY in bits/fcntl.h */
 #endif
@@ -14,6 +47,7 @@
 #include <signal.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <libcfs/libcfs.h>
 #include <lustre/liblustreapi.h>
 
 #define T1 "write data before unlink\n"
@@ -23,7 +57,7 @@ char *buf, *buf_align;
 int bufsize = 0;
 #define ALIGN 65535
 
-char usage[] = 
+char usage[] =
 "Usage: %s filename command-sequence\n"
 "    command-sequence items:\n"
 "        c  close\n"
@@ -45,6 +79,7 @@ char usage[] =
 "        T[num] ftruncate [optional position, default 0]\n"
 "        u  unlink\n"
 "        U  munmap\n"
+"        v  verbose\n"
 "        w[num] write optional length\n"
 "        W  write entire mmap-ed region\n"
 "        y  fsync\n"
@@ -152,6 +187,7 @@ int main(int argc, char **argv)
                 exit(1);
         }
 
+        memset(&st, 0, sizeof(st));
         signal(SIGUSR1, usr1_handler);
 
         fname = argv[1];
@@ -230,6 +266,11 @@ int main(int argc, char **argv)
                         }
                         break;
                 case 'M':
+                        if (st.st_size == 0) {
+                                fprintf(stderr, "mmap without preceeding stat, or on"
+                                        " zero length file.\n");
+                                exit(-1);
+                        }
                         mmap_len = st.st_size;
                         mmap_ptr = mmap(NULL, mmap_len, PROT_WRITE | PROT_READ,
                                         MAP_SHARED, fd, 0);
@@ -293,6 +334,8 @@ int main(int argc, char **argv)
                                         fprintf(stderr, "short read: %u/%u\n",
                                                 rc, len);
                                 len -= rc;
+                                if (verbose >= 2)
+                                        printf("%.*s\n", rc, buf_align);
                         }
                         break;
                 case 'R':
@@ -344,7 +387,7 @@ int main(int argc, char **argv)
                         }
                         break;
                 case 'v':
-                        verbose = 1;
+                        verbose++;
                         break;
                 case 'w':
                         len = atoi(commands+1);