| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2002 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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 for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * NAME |
| * diotest1.c |
| * |
| * DESCRIPTION |
| * Copy the contents of the input file to output file using direct read |
| * and direct write. The input file size is numblks*bufsize. |
| * The read and write calls use bufsize to perform IO. Input and output |
| * files can be specified through commandline and is useful for running |
| * test with raw devices as files. |
| * |
| * USAGE |
| * diotest1 [-b bufsize] [-n numblks] [-i infile] [-o outfile] |
| * |
| * History |
| * 04/22/2002 Narasimha Sharoff nsharoff@us.ibm.com |
| * |
| * RESTRICTIONS |
| * None |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <signal.h> |
| #include <string.h> |
| #include <sys/fcntl.h> |
| #include <errno.h> |
| |
| #include "diotest_routines.h" |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID="diotest01"; /* Test program identifier. */ |
| int TST_TOTAL=1; /* Total number of test conditions */ |
| |
| #ifdef O_DIRECT |
| |
| #define BUFSIZE 8192 |
| #define NBLKS 20 |
| #define LEN 30 |
| #define TRUE 1 |
| |
| /* |
| * prg_usage: display the program usage. |
| */ |
| void |
| prg_usage() |
| { |
| fprintf(stderr, "Usage: diotest1 [-b bufsize] [-n numblks] [-i infile] [-o outfile]\n"); |
| tst_resm (TBROK, "usage"); |
| tst_exit(); |
| } |
| |
| /* |
| * fail_clean: cleanup and exit. |
| */ |
| void |
| fail_clean(int fd1, int fd2, char *infile, char *outfile) |
| { |
| close(fd1); |
| close(fd2); |
| unlink(infile); |
| unlink(outfile); |
| tst_resm (TFAIL, "Test failed"); |
| tst_exit(); |
| } |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| int bufsize = BUFSIZE; /* Buffer size. Default 8k */ |
| int numblks = NBLKS; /* Number of blocks. Default 20 */ |
| char infile[LEN]; /* Input file. Default "infile" */ |
| char outfile[LEN]; /* Output file. Default "outfile" */ |
| int fd, fd1, fd2; |
| int i, n, offset; |
| char *buf; |
| |
| /* Options */ |
| strcpy(infile, "infile"); /* Default input file */ |
| strcpy(outfile, "outfile"); /* Default outfile file */ |
| while ((i = getopt(argc, argv, "b:n:i:o:")) != -1) { |
| switch(i) { |
| case 'b': |
| if ((bufsize = atoi(optarg)) <= 0) { |
| fprintf(stderr, "bufsize must be > 0\n"); |
| prg_usage(); |
| } |
| if (bufsize % 4096 != 0) { |
| fprintf(stderr, "bufsize must be multiple of 4k\n"); |
| prg_usage(); |
| } |
| break; |
| case 'n': |
| if ((numblks = atoi(optarg)) <= 0) { |
| fprintf(stderr, "numblks must be > 0\n"); |
| prg_usage(); |
| } |
| break; |
| case 'i': |
| strcpy(infile, optarg); |
| break; |
| case 'o': |
| strcpy(outfile, optarg); |
| break; |
| default: |
| prg_usage(); |
| } |
| } |
| |
| /* Test for filesystem support of O_DIRECT */ |
| if ((fd = open(infile, O_DIRECT|O_RDWR|O_CREAT, 0666)) < 0) { |
| tst_resm(TCONF,"O_DIRECT is not supported by this filesystem."); |
| tst_exit(); |
| }else{ |
| close(fd); |
| } |
| |
| /* Open files */ |
| if ((fd1 = open(infile, O_DIRECT|O_RDWR|O_CREAT, 0666)) < 0) { |
| tst_resm(TFAIL, "open infile failed: %s", strerror(errno)); |
| tst_exit(); |
| } |
| |
| if ((fd2 = open(outfile, O_DIRECT|O_RDWR|O_CREAT, 0666)) < 0) { |
| close(fd1); |
| unlink(infile); |
| tst_resm(TFAIL,"open outfile failed: %s", strerror(errno)); |
| tst_exit(); |
| } |
| |
| /* Allocate for buf, Create input file */ |
| if ((buf = valloc(bufsize)) == 0) { |
| tst_resm(TFAIL, "valloc() failed: %s", strerror(errno)); |
| fail_clean(fd1, fd2, infile, outfile); |
| } |
| for (i = 0; i < numblks; i++) { |
| fillbuf(buf, bufsize, (char)(i % 256)); |
| if (write(fd1, buf, bufsize) < 0) { |
| tst_resm(TFAIL, "write infile failed: %s", strerror(errno)); |
| fail_clean(fd1, fd2, infile, outfile); |
| } |
| } |
| |
| /* Copy infile to outfile using direct read and direct write */ |
| offset = 0; |
| if (lseek(fd1, offset, SEEK_SET) < 0) { |
| tst_resm(TFAIL, "lseek(infd) failed: %s", strerror(errno)); |
| fail_clean(fd1, fd2, infile, outfile); |
| } |
| while ((n = read(fd1, buf, bufsize)) > 0) { |
| if (lseek(fd2, offset, SEEK_SET) < 0) { |
| tst_resm(TFAIL, "lseek(outfd) failed: %s", strerror(errno)); |
| fail_clean(fd1, fd2, infile, outfile); |
| } |
| if (write(fd2, buf, n) < n) { |
| tst_resm(TFAIL, "write(outfd) failed: %s", strerror(errno)); |
| fail_clean(fd1, fd2, infile, outfile); |
| } |
| offset += n; |
| if (lseek(fd1, offset, SEEK_SET) < 0) { |
| tst_resm(TFAIL, "lseek(infd) failed: %s", strerror(errno)); |
| fail_clean(fd1, fd2, infile, outfile); |
| } |
| } |
| |
| /* Verify */ |
| if (filecmp(infile, outfile) != 0) { |
| tst_resm(TFAIL,"file compare failed for %s and %s", |
| infile, outfile); |
| fail_clean(fd1, fd2, infile, outfile); |
| } |
| |
| /* Cleanup */ |
| close(fd1); |
| close(fd2); |
| unlink(infile); |
| unlink(outfile); |
| tst_resm(TPASS, "Test passed"); |
| tst_exit(); |
| tst_exit(); |
| } |
| |
| #else /* O_DIRECT */ |
| |
| int |
| main() { |
| tst_resm(TCONF,"O_DIRECT is not defined."); |
| tst_exit(); |
| } |
| #endif /* O_DIRECT */ |