robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright (c) International Business Machines Corp., 2002 |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 13 | * the GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
Wanlong Gao | 4548c6c | 2012-10-19 18:03:36 +0800 | [diff] [blame] | 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 20 | /* |
| 21 | * NAME |
| 22 | * diotest1.c |
| 23 | * |
| 24 | * DESCRIPTION |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 25 | * Copy the contents of the input file to output file using direct read |
| 26 | * and direct write. The input file size is numblks*bufsize. |
| 27 | * The read and write calls use bufsize to perform IO. Input and output |
| 28 | * files can be specified through commandline and is useful for running |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 29 | * test with raw devices as files. |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 30 | * |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 31 | * USAGE |
| 32 | * diotest1 [-b bufsize] [-n numblks] [-i infile] [-o outfile] |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 33 | * |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 34 | * History |
| 35 | * 04/22/2002 Narasimha Sharoff nsharoff@us.ibm.com |
| 36 | * |
| 37 | * RESTRICTIONS |
| 38 | * None |
| 39 | */ |
| 40 | |
| 41 | #include <stdio.h> |
| 42 | #include <stdlib.h> |
| 43 | #include <unistd.h> |
| 44 | #include <signal.h> |
| 45 | #include <string.h> |
| 46 | #include <sys/fcntl.h> |
| 47 | #include <errno.h> |
| 48 | |
robbiew | 8680e9b | 2003-11-19 15:29:01 +0000 | [diff] [blame] | 49 | #include "diotest_routines.h" |
| 50 | |
robbiew | 96f4bb3 | 2003-03-13 15:39:53 +0000 | [diff] [blame] | 51 | #include "test.h" |
| 52 | #include "usctest.h" |
| 53 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 54 | char *TCID = "diotest01"; /* Test program identifier. */ |
| 55 | int TST_TOTAL = 1; /* Total number of test conditions */ |
robbiew | 8680e9b | 2003-11-19 15:29:01 +0000 | [diff] [blame] | 56 | |
robbiew | 96f4bb3 | 2003-03-13 15:39:53 +0000 | [diff] [blame] | 57 | #ifdef O_DIRECT |
| 58 | |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 59 | #define BUFSIZE 8192 |
| 60 | #define NBLKS 20 |
| 61 | #define LEN 30 |
| 62 | #define TRUE 1 |
| 63 | |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 64 | /* |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 65 | * prg_usage: display the program usage. |
| 66 | */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 67 | void prg_usage() |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 68 | { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 69 | fprintf(stderr, |
| 70 | "Usage: diotest1 [-b bufsize] [-n numblks] [-i infile] [-o outfile]\n"); |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame^] | 71 | tst_brkm(TBROK, NULL, "usage"); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | /* |
| 75 | * fail_clean: cleanup and exit. |
| 76 | */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 77 | void fail_clean(int fd1, int fd2, char *infile, char *outfile) |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 78 | { |
| 79 | close(fd1); |
| 80 | close(fd2); |
| 81 | unlink(infile); |
| 82 | unlink(outfile); |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame^] | 83 | tst_brkm(TFAIL, NULL, "Test failed"); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 84 | } |
| 85 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 86 | int main(int argc, char *argv[]) |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 87 | { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 88 | int bufsize = BUFSIZE; /* Buffer size. Default 8k */ |
| 89 | int numblks = NBLKS; /* Number of blocks. Default 20 */ |
| 90 | char infile[LEN]; /* Input file. Default "infile" */ |
| 91 | char outfile[LEN]; /* Output file. Default "outfile" */ |
| 92 | int fd, fd1, fd2; |
| 93 | int i, n, offset; |
| 94 | char *buf; |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 95 | |
| 96 | /* Options */ |
| 97 | strcpy(infile, "infile"); /* Default input file */ |
| 98 | strcpy(outfile, "outfile"); /* Default outfile file */ |
| 99 | while ((i = getopt(argc, argv, "b:n:i:o:")) != -1) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 100 | switch (i) { |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 101 | case 'b': |
| 102 | if ((bufsize = atoi(optarg)) <= 0) { |
| 103 | fprintf(stderr, "bufsize must be > 0\n"); |
| 104 | prg_usage(); |
| 105 | } |
| 106 | if (bufsize % 4096 != 0) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 107 | fprintf(stderr, |
| 108 | "bufsize must be multiple of 4k\n"); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 109 | prg_usage(); |
| 110 | } |
| 111 | break; |
| 112 | case 'n': |
| 113 | if ((numblks = atoi(optarg)) <= 0) { |
| 114 | fprintf(stderr, "numblks must be > 0\n"); |
| 115 | prg_usage(); |
| 116 | } |
| 117 | break; |
| 118 | case 'i': |
| 119 | strcpy(infile, optarg); |
| 120 | break; |
| 121 | case 'o': |
| 122 | strcpy(outfile, optarg); |
| 123 | break; |
| 124 | default: |
| 125 | prg_usage(); |
| 126 | } |
| 127 | } |
| 128 | |
robbiew | 8680e9b | 2003-11-19 15:29:01 +0000 | [diff] [blame] | 129 | /* Test for filesystem support of O_DIRECT */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 130 | if ((fd = open(infile, O_DIRECT | O_RDWR | O_CREAT, 0666)) < 0) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame^] | 131 | tst_brkm(TCONF, |
| 132 | NULL, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 133 | "O_DIRECT is not supported by this filesystem."); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 134 | } else { |
robbiew | 8680e9b | 2003-11-19 15:29:01 +0000 | [diff] [blame] | 135 | close(fd); |
| 136 | } |
| 137 | |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 138 | /* Open files */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 139 | if ((fd1 = open(infile, O_DIRECT | O_RDWR | O_CREAT, 0666)) < 0) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame^] | 140 | tst_brkm(TFAIL, NULL, "open infile failed: %s", |
| 141 | strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 142 | } |
| 143 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 144 | if ((fd2 = open(outfile, O_DIRECT | O_RDWR | O_CREAT, 0666)) < 0) { |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 145 | close(fd1); |
robbiew | 92b688b | 2004-03-01 22:36:38 +0000 | [diff] [blame] | 146 | unlink(infile); |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame^] | 147 | tst_brkm(TFAIL, NULL, "open outfile failed: %s", |
| 148 | strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | /* Allocate for buf, Create input file */ |
| 152 | if ((buf = valloc(bufsize)) == 0) { |
vapier | 0bdbaa3 | 2006-02-12 10:56:55 +0000 | [diff] [blame] | 153 | tst_resm(TFAIL, "valloc() failed: %s", strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 154 | fail_clean(fd1, fd2, infile, outfile); |
| 155 | } |
| 156 | for (i = 0; i < numblks; i++) { |
| 157 | fillbuf(buf, bufsize, (char)(i % 256)); |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 158 | if (write(fd1, buf, bufsize) < 0) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 159 | tst_resm(TFAIL, "write infile failed: %s", |
| 160 | strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 161 | fail_clean(fd1, fd2, infile, outfile); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | /* Copy infile to outfile using direct read and direct write */ |
| 166 | offset = 0; |
| 167 | if (lseek(fd1, offset, SEEK_SET) < 0) { |
vapier | 0bdbaa3 | 2006-02-12 10:56:55 +0000 | [diff] [blame] | 168 | tst_resm(TFAIL, "lseek(infd) failed: %s", strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 169 | fail_clean(fd1, fd2, infile, outfile); |
| 170 | } |
| 171 | while ((n = read(fd1, buf, bufsize)) > 0) { |
| 172 | if (lseek(fd2, offset, SEEK_SET) < 0) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 173 | tst_resm(TFAIL, "lseek(outfd) failed: %s", |
| 174 | strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 175 | fail_clean(fd1, fd2, infile, outfile); |
| 176 | } |
| 177 | if (write(fd2, buf, n) < n) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 178 | tst_resm(TFAIL, "write(outfd) failed: %s", |
| 179 | strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 180 | fail_clean(fd1, fd2, infile, outfile); |
| 181 | } |
| 182 | offset += n; |
| 183 | if (lseek(fd1, offset, SEEK_SET) < 0) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 184 | tst_resm(TFAIL, "lseek(infd) failed: %s", |
| 185 | strerror(errno)); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 186 | fail_clean(fd1, fd2, infile, outfile); |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | /* Verify */ |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 191 | if (filecmp(infile, outfile) != 0) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 192 | tst_resm(TFAIL, "file compare failed for %s and %s", |
| 193 | infile, outfile); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 194 | fail_clean(fd1, fd2, infile, outfile); |
| 195 | } |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 196 | |
| 197 | /* Cleanup */ |
| 198 | close(fd1); |
| 199 | close(fd2); |
| 200 | unlink(infile); |
| 201 | unlink(outfile); |
robbiew | 92b688b | 2004-03-01 22:36:38 +0000 | [diff] [blame] | 202 | tst_resm(TPASS, "Test passed"); |
| 203 | tst_exit(); |
robbiew | bfb98f9 | 2002-06-13 05:26:55 +0000 | [diff] [blame] | 204 | } |
robbiew | 96f4bb3 | 2003-03-13 15:39:53 +0000 | [diff] [blame] | 205 | |
| 206 | #else /* O_DIRECT */ |
| 207 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 208 | int main() |
| 209 | { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame^] | 210 | tst_brkm(TCONF, NULL, "O_DIRECT is not defined."); |
robbiew | 96f4bb3 | 2003-03-13 15:39:53 +0000 | [diff] [blame] | 211 | } |
Chris Dearman | ec6edca | 2012-10-17 19:54:01 -0700 | [diff] [blame] | 212 | #endif /* O_DIRECT */ |