1bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew/* 2bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 3bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * Copyright (c) International Business Machines Corp., 2002 4bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 5bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * This program is free software; you can redistribute it and/or modify 6bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * it under the terms of the GNU General Public License as published by 7bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * the Free Software Foundation; either version 2 of the License, or 8bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * (at your option) any later version. 9bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 10bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * This program is distributed in the hope that it will be useful, 11bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * but WITHOUT ANY WARRANTY; without even the implied warranty of 12bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 13bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * the GNU General Public License for more details. 14bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 15bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * You should have received a copy of the GNU General Public License 16bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * along with this program; if not, write to the Free Software 174548c6cf9bcdd96d8303caa4130ab638b61f8a30Wanlong Gao * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew */ 19bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 20bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew/* 21bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * NAME 22bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * diotest3.c 23bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 24bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * DESCRIPTION 25bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * Fork given number of children. Each child opens the same file, but 26bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * uses its own file descriptiors. The child does writes and reads from 27bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * its segment in the file. The segment to which the child writes is 28bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * determined by childnumber * bufsize. There is no need to use any locks. 294bb656a129f7507823e9e6d6b98b1a02fd80ef89subrata_modak * Program tests the combinations of buffered/buffered read(), write() 30bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * calls. 31bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * Test blocks: 32bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [1] Direct Read, Buffered write 33bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [2] Direct Write, Buffered read 34bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [3] Direct Read, Direct Write 35bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 36bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * USAGE 37bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * diotest3 [-b bufsize] [-o offset] [-n numchild] 38bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [-i iterations [-f filename] 394bb656a129f7507823e9e6d6b98b1a02fd80ef89subrata_modak * 40bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * History 41bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 04/22/2002 Narasimha Sharoff nsharoff@us.ibm.com 42bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 43bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * RESTRICTIONS 44bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * None 45bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew*/ 46bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 47bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <stdio.h> 48bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <stdlib.h> 49bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <unistd.h> 50bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <string.h> 51bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <sys/file.h> 52a7fa8561a5a095faf6e202a80b0c7729be8bb82dSteven Jackson#include <fcntl.h> 53b48651d2444c180f7db691b11a56cc6d57444d10mridge#include <sys/syscall.h> 54bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <errno.h> 55bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 56f7dc1be5b85cd32072dcae2db569bf11d115f27frobbiew#include "diotest_routines.h" 57f7dc1be5b85cd32072dcae2db569bf11d115f27frobbiew 5896f4bb38da69c681481f337d099ee4b6cdbba102robbiew#include "test.h" 5996f4bb38da69c681481f337d099ee4b6cdbba102robbiew 60354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaochar *TCID = "diotest03"; /* Test program identifier. */ 61354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaoint TST_TOTAL = 3; /* Total number of test conditions */ 628680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew 6396f4bb38da69c681481f337d099ee4b6cdbba102robbiew#ifdef O_DIRECT 6496f4bb38da69c681481f337d099ee4b6cdbba102robbiew 65bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define BUFSIZE 4096 66bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define TRUE 1 67bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define LEN 30 68bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define READ_DIRECT 1 69bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define WRITE_DIRECT 2 70bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define RDWR_DIRECT 3 71bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 72354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaostatic int iter = 100; /* Iterations. Default 100 */ 73354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaostatic int bufsize = BUFSIZE; /* Buffersize. Default 4k */ 74354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaostatic int offset = 0; /* Offset. Default 0 */ 75354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaostatic char filename[LEN]; 76bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 77a6e877c98244036db4b40ef3e02085bd29b45bb3Cyril Hrubisstatic void prg_usage(void) 78bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 79354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao fprintf(stderr, 80354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao "Usage: diotest3 [-b bufsize] [-o offset] [-n numchild] [-i iterations] [-f filename]\n"); 81bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(1); 82bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 83bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 84bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew/* 858c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew * runtest: write the data to the file. Read the data from the file and compare. 864bb656a129f7507823e9e6d6b98b1a02fd80ef89subrata_modak * For each iteration, write data starting at offse+iter*bufsize 878c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew * location in the file and read from there. 888dca42291762e7db715a406e79dc048f696f5067Garrett Cooper * 898dca42291762e7db715a406e79dc048f696f5067Garrett Cooper * XXX (garrcoop): shouldn't use libltp APIs because it runs forked. 908dca42291762e7db715a406e79dc048f696f5067Garrett Cooper */ 91354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaoint runtest(int fd_r, int fd_w, int childnum, int action) 928c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew{ 93354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao char *buf1; 94354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao char *buf2; 95354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao off_t seekoff; 96354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao int i; 978c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 988c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* Allocate for buffers */ 99354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao seekoff = offset + bufsize * childnum; 1008c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((buf1 = valloc(bufsize)) == 0) { 101354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, "valloc for buf1 failed"); 102354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1038c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1048c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((buf2 = valloc(bufsize)) == 0) { 105354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, "valloc for buf2 failed"); 106354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1078c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1088c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 1098c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* seek, write, read and verify */ 1108c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew for (i = 0; i < iter; i++) { 111354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao fillbuf(buf1, bufsize, childnum + i); 1128c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (lseek(fd_w, seekoff, SEEK_SET) < 0) { 113354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, "lseek (fd_w, ..) failed"); 114354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1158c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1168c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (write(fd_w, buf1, bufsize) < bufsize) { 117354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, "write failed"); 118354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1198c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1208c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (action == READ_DIRECT) { 1218c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* Make sure data is on to disk before read */ 1228c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (fsync(fd_w) < 0) { 123354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, "fsync failed"); 124354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1258c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1268c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1278c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (lseek(fd_r, seekoff, SEEK_SET) < 0) { 128354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, "lseek(fd_r, ..) failed"); 129354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1308c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1318c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (read(fd_r, buf2, bufsize) < bufsize) { 132354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, "read failed"); 133354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1348c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1358c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (bufcmp(buf1, buf2, bufsize) != 0) { 1368dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, 137354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao "comparsion failed; child=%d offset=%d", 138354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao childnum, (int)seekoff); 139354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 1408c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1418c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1428dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_exit(); 1438c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew} 1448c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 1458c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew/* 146bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * child_function: open the file for read and write. Call the runtest routine. 147bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew*/ 148354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaoint child_function(int childnum, int action) 149bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 150354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao int fd_w, fd_r; 151bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 152354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao switch (action) { 1538dca42291762e7db715a406e79dc048f696f5067Garrett Cooper case READ_DIRECT: 154354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if ((fd_w = open(filename, O_WRONLY | O_CREAT, 0666)) < 0) { 155354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, 156354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao "open(%s, O_WRONLY|O_CREAT, ..) failed", 157354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao filename); 158354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 159bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 160354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if ((fd_r = open(filename, O_DIRECT | O_RDONLY, 0666)) < 0) { 161354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL | TERRNO, 162354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao "open(%s, O_DIRECT|O_RDONLY, ..) failed", 163354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao filename); 164bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 165354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 166bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 167bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 1680bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "Read Direct-child %d failed", 169354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao childnum); 170bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 171bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 172354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 173bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 174bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 175354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao case WRITE_DIRECT: 176354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if ((fd_w = 177354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao open(filename, O_DIRECT | O_WRONLY | O_CREAT, 0666)) < 0) { 178354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL, "fd_w open failed for %s: %s", filename, 179354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao strerror(errno)); 180354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 181bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 182bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_r = open(filename, O_RDONLY, 0666)) < 0) { 1830bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "fd_r open failed for %s: %s", 184354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao filename, strerror(errno)); 185bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 186354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 187bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 188bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 1890bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "Write Direct-child %d failed", 190354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao childnum); 191bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 192bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 193354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 194bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 195bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 196354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao case RDWR_DIRECT: 197354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if ((fd_w = 198354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao open(filename, O_DIRECT | O_WRONLY | O_CREAT, 0666)) < 0) { 199354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL, "fd_w open failed for %s: %s", filename, 200354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao strerror(errno)); 201354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 202bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 203354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if ((fd_r = open(filename, O_DIRECT | O_RDONLY, 0666)) < 0) { 2040bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "fd_r open failed for %s: %s", 205354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao filename, strerror(errno)); 206bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 207354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 208bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 209bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 2100bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "RDWR Direct-child %d failed", 211354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao childnum); 212bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 213bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 214354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 215bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 216bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 2178dca42291762e7db715a406e79dc048f696f5067Garrett Cooper default: 218354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao fprintf(stderr, "Invalid Action Value\n"); 219354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return (-1); 220bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 221bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 222bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 223bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(0); 224bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 225bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 22604e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void setup(void); 22704e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void cleanup(void); 22804e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic int fd1 = -1; 229bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 230354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaoint main(int argc, char *argv[]) 231bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 232354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao int *pidlst; 233354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao int numchild = 1; /* Number of children. Default 5 */ 234354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao int i, fail_count = 0, failed = 0, total = 0; 235bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 236bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Options */ 237d97f51dc8278ac024bccac7c64bc30f3b3f7bbbeJeff Layton sprintf(filename, "testdata-3.%ld", syscall(__NR_gettid)); 238bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew while ((i = getopt(argc, argv, "b:o:i:n:f:")) != -1) { 239354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao switch (i) { 240bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'b': 241bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((bufsize = atoi(optarg)) <= 0) { 242bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "bufsize must be > 0\n"); 243bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 244bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 245bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (bufsize % 4096 != 0) { 246354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao fprintf(stderr, 247354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao "bufsize must be multiple of 4k\n"); 248bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 249bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 250bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 251bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'o': 252bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((offset = atoi(optarg)) <= 0) { 253bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "offset must be > 0\n"); 254bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 255bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 256bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 257bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'i': 258bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((iter = atoi(optarg)) <= 0) { 259bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "iterations must be > 0\n"); 260bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 261bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 262bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 263bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'n': 264bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((numchild = atoi(optarg)) <= 0) { 265bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "no of children must be > 0\n"); 266bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 267bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 268bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 269bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'f': 270bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew strcpy(filename, optarg); 271bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 272bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew default: 273bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 274bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 275bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 276bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 27704e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak setup(); 2788680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew 279bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-1: Read with Direct IO, Write without */ 2808fb1cdb0538640f295691929650408688537fb7fGarrett Cooper if (forkchldrn(&pidlst, numchild, READ_DIRECT, child_function) < 0) { 281bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 282bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 2838dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Read with Direct IO, Write without"); 284354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao } else { 285bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 286bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 287bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 2888dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Read with Direct IO, Write without"); 289354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao } else 2908dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TPASS, "Read with Direct IO, Write without"); 29192b688b8340e2424643c5d33dcacfbb109529402robbiew 292bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 293bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 294bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 295bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 296bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 297bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-2: Write with Direct IO, Read without */ 298bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (forkchldrn(&pidlst, numchild, WRITE_DIRECT, child_function) < 0) { 299bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 300bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 3018dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Write with Direct IO, Read without"); 302354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao } else { 303bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 304bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 305bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 3068dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Write with Direct IO, Read without"); 307354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao } else 3088dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TPASS, "Write with Direct IO, Read without"); 309bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 310bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 311bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 312bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 313bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 314bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-3: Read, Write with Direct IO. */ 315bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (forkchldrn(&pidlst, numchild, RDWR_DIRECT, child_function) < 0) { 316bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 317bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 318354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TFAIL, "Read, Write with Direct IO"); 319354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao } else { 320bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 321bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 322bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 3238dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Read, Write with Direct IO"); 3248dca42291762e7db715a406e79dc048f696f5067Garrett Cooper } else 3258dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TPASS, "Read, Write with Direct IO"); 326bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 327bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 328bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 329bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 330bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 3318dca42291762e7db715a406e79dc048f696f5067Garrett Cooper if (failed) 332354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TINFO, "%d/%d testblocks failed", fail_count, total); 33304e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak else 334354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_resm(TINFO, 335354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao "%d testblocks %d iterations with %d children completed", 336354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao total, iter, numchild); 33704e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak cleanup(); 3382c28215423293e443469a07ae7011135d058b671Garrett Cooper 3398dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_exit(); 3408dca42291762e7db715a406e79dc048f696f5067Garrett Cooper 341bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 342bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 34304e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void setup(void) 34404e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak{ 34504e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak tst_tmpdir(); 34604e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 347354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if ((fd1 = open(filename, O_CREAT | O_EXCL, 0600)) < 0) 348354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao tst_brkm(TBROK | TERRNO, cleanup, 349354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao "open(%s, O_CREAT|O_EXCL, ..) failed", filename); 35004e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak close(fd1); 35104e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 35204e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak /* Test for filesystem support of O_DIRECT */ 3538dca42291762e7db715a406e79dc048f696f5067Garrett Cooper if ((fd1 = open(filename, O_DIRECT, 0600)) < 0) 35472521cf0741034f67dd17107453cda9a9819264cGarrett Cooper tst_brkm(TCONF, cleanup, "open(%s, O_DIRECT, ..) failed", 355354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao filename); 35676a720a381f351b33eb203c7c519e6f44bbe7219Subrata Modak close(fd1); 35704e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak} 35804e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 35904e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void cleanup(void) 36004e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak{ 361df3eb16e38c6a163b0a7367c885679eed6140964Garrett Cooper if (fd1 != -1) 36204e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak unlink(filename); 36304e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 36404e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak tst_rmdir(); 36596f4bb38da69c681481f337d099ee4b6cdbba102robbiew 36604e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak} 36796f4bb38da69c681481f337d099ee4b6cdbba102robbiew#else /* O_DIRECT */ 36896f4bb38da69c681481f337d099ee4b6cdbba102robbiew 369354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gaoint main() 3708dca42291762e7db715a406e79dc048f696f5067Garrett Cooper{ 3718dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_brkm(TCONF, NULL, "O_DIRECT is not defined."); 37296f4bb38da69c681481f337d099ee4b6cdbba102robbiew} 373ec6edca7aa42b6affd989ef91b5897f96795e40fChris Dearman#endif /* O_DIRECT */ 374