diotest3.c revision 8dca42291762e7db715a406e79dc048f696f5067
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 17bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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> 52bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <sys/fcntl.h> 53b48651d2444c180f7db691b11a56cc6d57444d10mridge#include <sys/syscall.h> 54bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <errno.h> 55bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 56f7dc1be5b85cd32072dcae2db569bf11d115f27frobbiew#include "diotest_routines.h" 57f7dc1be5b85cd32072dcae2db569bf11d115f27frobbiew 5896f4bb38da69c681481f337d099ee4b6cdbba102robbiew#include "test.h" 5996f4bb38da69c681481f337d099ee4b6cdbba102robbiew#include "usctest.h" 6096f4bb38da69c681481f337d099ee4b6cdbba102robbiew 6192b688b8340e2424643c5d33dcacfbb109529402robbiewchar *TCID="diotest03"; /* Test program identifier. */ 6292b688b8340e2424643c5d33dcacfbb109529402robbiewint TST_TOTAL=3; /* Total number of test conditions */ 638680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew 6496f4bb38da69c681481f337d099ee4b6cdbba102robbiew#ifdef O_DIRECT 6596f4bb38da69c681481f337d099ee4b6cdbba102robbiew 66bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define BUFSIZE 4096 67bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define TRUE 1 68bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define LEN 30 69bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define READ_DIRECT 1 70bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define WRITE_DIRECT 2 71bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#define RDWR_DIRECT 3 72bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 73bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewstatic int iter = 100; /* Iterations. Default 100 */ 74bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewstatic int bufsize = BUFSIZE; /* Buffersize. Default 4k */ 75bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewstatic int offset = 0; /* Offset. Default 0 */ 76bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewstatic char filename[LEN]; 77bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 78bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew/* 79bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * prg_usage: display the program usage 80bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew*/ 81bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewvoid 82bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewprg_usage() 83bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 84bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "Usage: diotest3 [-b bufsize] [-o offset] [-n numchild] [-i iterations] [-f filename]\n"); 85bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(1); 86bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 87bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 88bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew/* 898c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew * runtest: write the data to the file. Read the data from the file and compare. 904bb656a129f7507823e9e6d6b98b1a02fd80ef89subrata_modak * For each iteration, write data starting at offse+iter*bufsize 918c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew * location in the file and read from there. 928dca42291762e7db715a406e79dc048f696f5067Garrett Cooper * 938dca42291762e7db715a406e79dc048f696f5067Garrett Cooper * XXX (garrcoop): shouldn't use libltp APIs because it runs forked. 948dca42291762e7db715a406e79dc048f696f5067Garrett Cooper */ 958c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiewint 968c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiewruntest(int fd_r, int fd_w, int childnum, int action) 978c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew{ 988c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew char *buf1; 998c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew char *buf2; 1008c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew off_t seekoff; 1018c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew int bufsize = BUFSIZE; 1028c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew int i; 1038c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 1048c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* Allocate for buffers */ 1058c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew seekoff = offset+bufsize * childnum; 1068c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((buf1 = valloc(bufsize)) == 0) { 1078dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, "valloc for buf1 failed"); 1088c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1098c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1108c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((buf2 = valloc(bufsize)) == 0) { 1118dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, "valloc for buf2 failed"); 1128c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1138c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1148c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 1158c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* seek, write, read and verify */ 1168c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew for (i = 0; i < iter; i++) { 1178c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fillbuf(buf1, bufsize, childnum+i); 1188c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (lseek(fd_w, seekoff, SEEK_SET) < 0) { 1198dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, "lseek (fd_w, ..) failed"); 1208c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1218c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1228c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (write(fd_w, buf1, bufsize) < bufsize) { 1238dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, "write failed"); 1248c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1258c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1268c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (action == READ_DIRECT) { 1278c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* Make sure data is on to disk before read */ 1288c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (fsync(fd_w) < 0) { 1298dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, "fsync failed"); 1308c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1318c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1328c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1338c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (lseek(fd_r, seekoff, SEEK_SET) < 0) { 1348dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, "lseek(fd_r, ..) failed"); 1358c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1368c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1378c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (read(fd_r, buf2, bufsize) < bufsize) { 1388dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, "read failed"); 1398c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1408c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1418c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (bufcmp(buf1, buf2, bufsize) != 0) { 1428dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, 1438dca42291762e7db715a406e79dc048f696f5067Garrett Cooper "comparsion failed; child=%d offset=%d", 1448dca42291762e7db715a406e79dc048f696f5067Garrett Cooper childnum, (int)seekoff); 1458c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1468c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1478c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1488dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_exit(); 1498c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew} 1508c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 1518c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew/* 152bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * child_function: open the file for read and write. Call the runtest routine. 153bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew*/ 154bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewint 155bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewchild_function(int childnum, int action) 156bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 157bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int fd_w, fd_r; 158bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 159bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew switch(action) { 1608dca42291762e7db715a406e79dc048f696f5067Garrett Cooper case READ_DIRECT: 161bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_w = open(filename, O_WRONLY|O_CREAT, 0666)) < 0) { 1628dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, 1638dca42291762e7db715a406e79dc048f696f5067Garrett Cooper "open(%s, O_WRONLY|O_CREAT, ..) failed", filename); 164bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 165bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 166bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_r = open(filename, O_DIRECT|O_RDONLY, 0666)) < 0) { 1678dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL|TERRNO, 1688dca42291762e7db715a406e79dc048f696f5067Garrett Cooper "open(%s, O_DIRECT|O_RDONLY, ..) failed", filename); 169bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 170bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 171bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 172bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 1730bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "Read Direct-child %d failed", 1748dca42291762e7db715a406e79dc048f696f5067Garrett Cooper childnum); 175bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 176bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 177bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 178bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 179bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 180bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case WRITE_DIRECT: 181bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_w = open(filename, O_DIRECT|O_WRONLY|O_CREAT, 0666)) < 0) { 1820bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "fd_w open failed for %s: %s", 183bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 184bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 185bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 186bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_r = open(filename, O_RDONLY, 0666)) < 0) { 1870bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "fd_r open failed for %s: %s", 188bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 189bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 190bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 191bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 192bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 1930bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "Write Direct-child %d failed", 194bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew childnum); 195bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 196bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 197bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 198bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 199bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 200bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case RDWR_DIRECT: 201bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_w = open(filename, O_DIRECT|O_WRONLY|O_CREAT, 0666)) < 0) { 2020bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "fd_w open failed for %s: %s", 203bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 204bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 205bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 206bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_r = open(filename, O_DIRECT|O_RDONLY, 0666)) < 0) { 2070bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "fd_r open failed for %s: %s", 208bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 209bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 210bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 211bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 212bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 2130bdbaa31acb9640b8ac63f17e5af999a124519d3vapier tst_resm(TFAIL, "RDWR Direct-child %d failed", 214bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew childnum); 215bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 216bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 217bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 218bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 219bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 2208dca42291762e7db715a406e79dc048f696f5067Garrett Cooper default: 221bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr,"Invalid Action Value\n"); 222bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 223bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 224bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 225bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 226bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(0); 227bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 228bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 22904e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void setup(void); 23004e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void cleanup(void); 23104e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic int fd1 = -1; 232bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 233bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewint 234bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewmain(int argc, char *argv[]) 235bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 236bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int *pidlst; 237bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int numchild = 1; /* Number of children. Default 5 */ 238bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int i, fail_count = 0, failed = 0, total = 0; 239bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 240bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Options */ 241bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew while ((i = getopt(argc, argv, "b:o:i:n:f:")) != -1) { 242bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew switch(i) { 243bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'b': 244bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((bufsize = atoi(optarg)) <= 0) { 245bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "bufsize must be > 0\n"); 246bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 247bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 248bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (bufsize % 4096 != 0) { 249bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "bufsize must be multiple of 4k\n"); 250bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 251bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 252bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 253bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'o': 254bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((offset = atoi(optarg)) <= 0) { 255bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "offset must be > 0\n"); 256bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 257bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 258bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 259bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'i': 260bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((iter = atoi(optarg)) <= 0) { 261bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "iterations must be > 0\n"); 262bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 263bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 264bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 265bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'n': 266bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((numchild = atoi(optarg)) <= 0) { 267bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "no of children must be > 0\n"); 268bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 269bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 270bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 271bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'f': 272bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew strcpy(filename, optarg); 273bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 274bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew default: 275bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 276bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 277bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 278b48651d2444c180f7db691b11a56cc6d57444d10mridge sprintf(filename,"testdata-3.%ld", syscall(__NR_gettid)); 279bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 28004e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak setup(); 2818680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew 282bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-1: Read with Direct IO, Write without */ 2838fb1cdb0538640f295691929650408688537fb7fGarrett Cooper if (forkchldrn(&pidlst, numchild, READ_DIRECT, child_function) < 0) { 284bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 285bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 2868dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Read with Direct IO, Write without"); 287bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 288bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew else { 289bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 290bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 291bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 2928dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Read with Direct IO, Write without"); 293bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 29492b688b8340e2424643c5d33dcacfbb109529402robbiew else 2958dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TPASS, "Read with Direct IO, Write without"); 29692b688b8340e2424643c5d33dcacfbb109529402robbiew 297bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 298bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 299bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 300bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 301bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 302bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-2: Write with Direct IO, Read without */ 303bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (forkchldrn(&pidlst, numchild, WRITE_DIRECT, child_function) < 0) { 304bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 305bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 3068dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Write with Direct IO, Read without"); 307bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 308bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew else { 309bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 310bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 311bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 3128dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Write with Direct IO, Read without"); 313bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 31492b688b8340e2424643c5d33dcacfbb109529402robbiew else 3158dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TPASS, "Write with Direct IO, Read without"); 316bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 317bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 318bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 319bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 320bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 321bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-3: Read, Write with Direct IO. */ 322bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (forkchldrn(&pidlst, numchild, RDWR_DIRECT, child_function) < 0) { 323bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 324bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 32592b688b8340e2424643c5d33dcacfbb109529402robbiew tst_resm (TFAIL, "Read, Write with Direct IO"); 326bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 327bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew else { 328bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 329bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 330bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 3318dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TFAIL, "Read, Write with Direct IO"); 3328dca42291762e7db715a406e79dc048f696f5067Garrett Cooper } else 3338dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_resm(TPASS, "Read, Write with Direct IO"); 334bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 335bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 336bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 337bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 338bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 3398dca42291762e7db715a406e79dc048f696f5067Garrett Cooper if (failed) 3404bb656a129f7507823e9e6d6b98b1a02fd80ef89subrata_modak tst_resm(TINFO, "%d/%d testblocks failed", 341bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count, total); 34204e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak else 34304e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak tst_resm(TINFO, "%d testblocks %d iterations with %d children completed", 34404e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak total, iter, numchild); 34504e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak cleanup(); 3462c28215423293e443469a07ae7011135d058b671Garrett Cooper 3478dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_exit(); 3488dca42291762e7db715a406e79dc048f696f5067Garrett Cooper 349bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 350bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 35104e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void setup(void) 35204e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak{ 35304e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak tst_tmpdir(); 35404e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 3558dca42291762e7db715a406e79dc048f696f5067Garrett Cooper if ((fd1 = open(filename, O_CREAT|O_EXCL, 0600)) < 0) 3568dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_brkm(TBROK|TERRNO, cleanup, 3578dca42291762e7db715a406e79dc048f696f5067Garrett Cooper "open(%s, O_CREAT|O_EXCL, ..) failed", filename); 35804e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak close(fd1); 35904e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 36004e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak /* Test for filesystem support of O_DIRECT */ 3618dca42291762e7db715a406e79dc048f696f5067Garrett Cooper if ((fd1 = open(filename, O_DIRECT, 0600)) < 0) 3628dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_brkm(TCONF, cleanup, "open(%s, O_DIRECT, ..) failed"); 36376a720a381f351b33eb203c7c519e6f44bbe7219Subrata Modak close(fd1); 36404e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak} 36504e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 36604e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modakstatic void cleanup(void) 36704e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak{ 368df3eb16e38c6a163b0a7367c885679eed6140964Garrett Cooper if (fd1 != -1) 36904e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak unlink(filename); 37004e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak 37104e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak tst_rmdir(); 37296f4bb38da69c681481f337d099ee4b6cdbba102robbiew 37304e0bfa9661a9d9caca9f2683b925b66ca5a7cb2subrata_modak} 37496f4bb38da69c681481f337d099ee4b6cdbba102robbiew#else /* O_DIRECT */ 37596f4bb38da69c681481f337d099ee4b6cdbba102robbiew 37696f4bb38da69c681481f337d099ee4b6cdbba102robbiewint 3778dca42291762e7db715a406e79dc048f696f5067Garrett Coopermain() 3788dca42291762e7db715a406e79dc048f696f5067Garrett Cooper{ 3798dca42291762e7db715a406e79dc048f696f5067Garrett Cooper tst_brkm(TCONF, NULL, "O_DIRECT is not defined."); 38096f4bb38da69c681481f337d099ee4b6cdbba102robbiew} 3818dca42291762e7db715a406e79dc048f696f5067Garrett Cooper#endif /* O_DIRECT */ 382