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>
58 #define MAP_FAILED ((void *)-1)
64 create_write_file(char *filename)
69 fs_invalidate(filename);
71 fd = open(filename, O_RDWR | O_CREAT, 0666);
73 err(1, "open(rw): %s", filename);
75 ret = write(fd, "foo", 3);
79 fs_invalidate(filename);
81 ret = write(fd, "foo", 3);
91 read_file(char *filename)
97 fs_invalidate(filename);
99 fd = open(filename, O_RDONLY, 0666);
103 ret = read(fd, buf, sizeof(buf));
107 fs_invalidate(filename);
109 ret = read(fd, buf, sizeof(buf));
119 mmap_read_file(char *filename)
125 fs_invalidate(filename);
127 fd = open(filename, O_RDONLY, 0666);
129 err(1, "open(ro-mmap)");
131 v = mmap(NULL, 6, PROT_READ, MAP_SHARED, fd, 0);
132 if (v == (void *)MAP_FAILED)
133 err(1, "mmap(ro) %s", filename);
136 fs_invalidate(filename);
143 mmap_write_file(char *filename)
148 fs_invalidate(filename);
150 fd = open(filename, O_RDWR, 0666);
152 err(1, "open(rw-mmap)");
154 v = mmap(NULL, 6, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
155 if (v == (void *)MAP_FAILED)
156 err(1, "mmap(rw) %s", filename);
159 fs_invalidate(filename);
167 main(int argc, char **argv)
169 char *filename = "foo";
177 create_write_file(filename);
182 mmap_read_file(filename);
183 mmap_read_file(filename);
184 mmap_read_file(filename);
185 mmap_read_file(filename);
186 mmap_write_file(filename);
187 mmap_write_file(filename);
188 mmap_write_file(filename);
189 mmap_write_file(filename);
197 main(int argc, char **argv)
200 errx(1, "no kafs support");