X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Ftests%2Fopenunlink.c;h=70768b08c5c3cf8eb1744bc0715ae014c61d0993;hb=3afd06e2dc99a0a9a1f267b8a80c8e5208917856;hp=e7671c842bb8d025f7f0479d582997e65358d40c;hpb=93acd158c57c4c5d0fc751d46741231490c04707;p=fs%2Flustre-release.git

diff --git a/lustre/tests/openunlink.c b/lustre/tests/openunlink.c
index e7671c8..70768b0 100644
--- a/lustre/tests/openunlink.c
+++ b/lustre/tests/openunlink.c
@@ -1,24 +1,56 @@
+/*
+ * 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.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. 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 <fcntl.h>
 #include <string.h>
 #include <errno.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <stdlib.h>
 #include <unistd.h>
 
-#define T1 "write before unlink\n"
-#define T2 "write after unlink\n"
+#define T1 "write data before unlink\n"
+#define T2 "write data after unlink\n"
 char buf[128];
 
 int main(int argc, char **argv)
 {
 	char *fname, *fname2;
-        int fd, rc;
+	struct stat st;
+	int fd, rc;
 
-        if (argc < 2 || argc > 3) {
-                fprintf(stderr, "usage: %s filename [filename2]\n", argv[0]);
-                exit(1);
-        }
+	if (argc < 2 || argc > 3) {
+		fprintf(stderr, "usage: %s filename [filename2]\n", argv[0]);
+		exit(1);
+	}
 
 	fname = argv[1];
 	if (argc == 3)
@@ -26,122 +58,127 @@ int main(int argc, char **argv)
 	else
 		fname2 = argv[1];
 
-        fprintf(stderr, "opening\n");
-        fd = open(fname, O_RDWR | O_TRUNC | O_CREAT, 0644);
-        if (fd == -1) {
-                fprintf(stderr, "open (normal) %s\n", strerror(errno));
-                exit(1);
-        }
+	fprintf(stderr, "opening\n");
+	fd = open(fname, O_RDWR | O_TRUNC | O_CREAT, 0644);
+	if (fd == -1) {
+		fprintf(stderr, "open (normal) %s\n", strerror(errno));
+		exit(1);
+	}
 
-        fprintf(stderr, "writing\n");
-        rc = write(fd, T1, strlen(T1) + 1);
-        if (rc != strlen(T1) + 1) {
-                fprintf(stderr, "write (normal) %s\n", strerror(errno));
-                exit(1);
-        }
+	fprintf(stderr, "writing\n");
+	rc = write(fd, T1, strlen(T1) + 1);
+	if (rc != strlen(T1) + 1) {
+		fprintf(stderr, "write (normal) %s (rc %d)\n",
+			strerror(errno), rc);
+		exit(1);
+	}
 
 	if (argc == 3) {
-		fprintf(stderr, "closing %s\n", fname);
-		rc = close(fd);
-		if (rc) {
-			fprintf(stderr, "close (normal) %s\n", strerror(errno));
-			exit(1);
-		}
-
-		fprintf(stderr, "opening %s\n", fname2);
-		fd = open(fname2, O_RDWR);
-		if (fd == -1) {
-			fprintf(stderr, "open (unlink) %s\n", strerror(errno));
-			exit(1);
-		}
-
-		fprintf (stderr, "unlinking %s\n", fname2);
+		fprintf(stderr, "unlinking %s\n", fname2);
 		rc = unlink(fname2);
 		if (rc) {
 			fprintf(stderr, "unlink %s\n", strerror(errno));
 			exit(1);
 		}
-
-		if (access(fname2, F_OK) == 0) {
-			fprintf(stderr, "%s still exists\n", fname2);
-			exit(1);
-		}
 	} else {
 		printf("unlink %s and press enter\n", fname);
 		getc(stdin);
 	}
 
+	fprintf(stderr, "accessing (1)\n");
 	if (access(fname, F_OK) == 0) {
 		fprintf(stderr, "%s still exists\n", fname);
 		exit(1);
 	}
 
-        fprintf(stderr, "reading\n");
-        rc = read(fd, buf, strlen(T1) + 1);
-        if (rc != strlen(T1) + 1) {
-                fprintf(stderr, "read (unlink) %s rc %d\n",
-                        strerror(errno), rc);
-                exit(1);
-        }
-
-        fprintf(stderr, "comparing data\n");
-        if (memcmp(buf, T1, strlen(T1) + 1) ) {
-                fprintf(stderr, "FAILURE: read wrong data after unlink\n");
-                exit(1);
-        }
-
-        fprintf(stderr, "truncating\n");
-        rc = ftruncate(fd, 0);
-        if (rc ) {
-                fprintf(stderr, "truncate (unlink) %s\n", strerror(errno));
-                exit(1);
-        }
-
-        fprintf(stderr, "seeking\n");
-        rc = lseek(fd, 0, SEEK_SET);
-        if (rc) {
-                fprintf(stderr, "seek (after unlink trunc) %s\n",
-                        strerror(errno));
-                exit(1);
-        }
-
-        fprintf(stderr, "writing again\n");
-        rc = write(fd, T2, strlen(T2) + 1);
-        if (rc != strlen(T2) + 1) {
-                fprintf(stderr, "write (after unlink trunc) %s (rc %d)\n",
-                        strerror(errno), rc);
-                exit(1);
-        }
-
-        fprintf(stderr, "seeking\n");
-        rc = lseek(fd, 0, SEEK_SET);
-        if (rc) {
-                fprintf(stderr, "seek (before unlink read) %s\n",
-                        strerror(errno));
-                exit(1);
-        }
-
-        fprintf(stderr, "reading again\n");
-        rc = read(fd, buf, strlen(T2) + 1);
-        if (rc != strlen(T2) + 1) {
-                fprintf(stderr, "read (after unlink rewrite) %s\n",
-                        strerror(errno));
-                exit(1);
-        }
-
-        fprintf(stderr, "comparing data again\n");
-        if (memcmp(buf, T2, strlen(T2) + 1)) {
-                fprintf(stderr, "FAILURE: read wrong data after rewrite\n");
-                exit(1);
-        }
-
-        fprintf(stderr, "closing again\n");
-        rc = close(fd);
-        if (rc) {
-                fprintf(stderr, "close (unlink) %s\n", strerror(errno));
-                exit(1);
-        }
-
-        fprintf(stderr, "SUCCESS - goto beer\n");
-        return 0;
+	fprintf(stderr, "seeking (1)\n");
+	rc = lseek(fd, 0, SEEK_SET);
+	if (rc) {
+		fprintf(stderr, "seek %s\n", strerror(errno));
+		exit(1);
+	}
+
+	fprintf(stderr, "accessing (2)\n");
+	if (access(fname, F_OK) == 0) {
+		fprintf(stderr, "%s still exists\n", fname);
+		exit(1);
+	}
+
+	fprintf(stderr, "fstat...\n");
+	rc = fstat(fd, &st);
+	if (rc) {
+		fprintf(stderr, "fstat (unlink) %s\n", strerror(errno));
+		exit(1);
+	}
+	if (st.st_nlink != 0)
+		fprintf(stderr, "st_nlink = %d\n", (int)st.st_nlink);
+
+	fprintf(stderr, "reading\n");
+	rc = read(fd, buf, strlen(T1) + 1);
+	if (rc != strlen(T1) + 1) {
+		fprintf(stderr, "read (unlink) %s (rc %d)\n",
+			strerror(errno), rc);
+		exit(1);
+	}
+
+	fprintf(stderr, "comparing data\n");
+	if (memcmp(buf, T1, strlen(T1) + 1)) {
+		fprintf(stderr, "FAILURE: read wrong data after unlink\n");
+		exit(1);
+	}
+
+	fprintf(stderr, "truncating\n");
+	rc = ftruncate(fd, 0);
+	if (rc) {
+		fprintf(stderr, "truncate (unlink) %s\n", strerror(errno));
+		exit(1);
+	}
+
+	fprintf(stderr, "seeking (2)\n");
+	rc = lseek(fd, 0, SEEK_SET);
+	if (rc) {
+		fprintf(stderr, "seek (after unlink trunc) %s\n",
+			strerror(errno));
+		exit(1);
+	}
+
+	fprintf(stderr, "writing again\n");
+	rc = write(fd, T2, strlen(T2) + 1);
+	if (rc != strlen(T2) + 1) {
+		fprintf(stderr, "write (after unlink trunc) %s (rc %d)\n",
+			strerror(errno), rc);
+		exit(1);
+	}
+
+	fprintf(stderr, "seeking (3)\n");
+	rc = lseek(fd, 0, SEEK_SET);
+	if (rc) {
+		fprintf(stderr, "seek (before unlink read) %s\n",
+			strerror(errno));
+		exit(1);
+	}
+
+	fprintf(stderr, "reading again\n");
+	rc = read(fd, buf, strlen(T2) + 1);
+	if (rc != strlen(T2) + 1) {
+		fprintf(stderr, "read (after unlink rewrite) %s (rc %d)\n",
+			strerror(errno), rc);
+		exit(1);
+	}
+
+	fprintf(stderr, "comparing data again\n");
+	if (memcmp(buf, T2, strlen(T2) + 1)) {
+		fprintf(stderr, "FAILURE: read wrong data after rewrite\n");
+		exit(1);
+	}
+
+	fprintf(stderr, "closing\n");
+	rc = close(fd);
+	if (rc) {
+		fprintf(stderr, "close (unlink) %s\n", strerror(errno));
+		exit(1);
+	}
+
+	fprintf(stderr, "SUCCESS - goto beer\n");
+	return 0;
 }