2 * Copyright (c) 2000 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 #include <sys/types.h>
57 #define MAP_FAILED ((void *)-1)
63 create_write_file(char *filename)
68 fs_invalidate(filename);
70 fd = open(filename, O_RDWR | O_CREAT, 0666);
72 err(1, "open(rw): %s", filename);
74 ret = write(fd, "foo", 3);
78 fs_invalidate(filename);
80 ret = write(fd, "foo", 3);
90 read_file(char *filename)
96 fs_invalidate(filename);
98 fd = open(filename, O_RDONLY, 0666);
102 ret = read(fd, buf, sizeof(buf));
106 fs_invalidate(filename);
108 ret = read(fd, buf, sizeof(buf));
118 mmap_read_file(char *filename)
124 fs_invalidate(filename);
126 fd = open(filename, O_RDONLY, 0666);
128 err(1, "open(ro-mmap)");
130 v = mmap(NULL, 6, PROT_READ, MAP_SHARED, fd, 0);
131 if (v == (void *)MAP_FAILED)
132 err(1, "mmap(ro) %s", filename);
135 fs_invalidate(filename);
142 mmap_write_file(char *filename)
147 fs_invalidate(filename);
149 fd = open(filename, O_RDWR, 0666);
151 err(1, "open(rw-mmap)");
153 v = mmap(NULL, 6, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
154 if (v == (void *)MAP_FAILED)
155 err(1, "mmap(rw) %s", filename);
158 fs_invalidate(filename);
166 main(int argc, char **argv)
168 char *filename = "foo";
176 create_write_file(filename);
181 mmap_read_file(filename);
182 mmap_read_file(filename);
183 mmap_read_file(filename);
184 mmap_read_file(filename);
185 mmap_write_file(filename);
186 mmap_write_file(filename);
187 mmap_write_file(filename);
188 mmap_write_file(filename);
196 main(int argc, char **argv)
199 errx(1, "no kafs support");