diotest6.c revision 8680e9b72836f1cc465d424e0dcc9e54e4eda32b
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/* 22bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * NAME 23bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * diotest6.c 24bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 25bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * DESCRIPTION 26bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * Fork given number of children. Each child opens the same file, but 27bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * uses its own file descriptior. The child does writes and reads from 28bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * its segment in the file. The segment to which the child writes is 29bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * determined by childnumber * bufsize. There is no need to use any locks. 30bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * Tests the combinations of buffered/direct readv(), writev() calls. 31bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * Test program contains the following test blocks: 32bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [1] Direct Read, Buffered write 33bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [2] Direct Write, Buffered read 34bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [3] Direct Read, Direct Write 35bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 36bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * USAGE 37bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * diotest6 [-b bufsize] [-o offset] [-n numchild] [-i iterations] 38bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * [-v nvector] [-f fileaname] 39bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 40bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * History 41bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * 04/30/2002 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> 53bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <sys/uio.h> 54bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew#include <errno.h> 55bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 56f7dc1be5b85cd32072dcae2db569bf11d115f27frobbiew#include "diotest_routines.h" 57f7dc1be5b85cd32072dcae2db569bf11d115f27frobbiew 5896f4bb38da69c681481f337d099ee4b6cdbba102robbiew#include "test.h" 5996f4bb38da69c681481f337d099ee4b6cdbba102robbiew#include "usctest.h" 6096f4bb38da69c681481f337d099ee4b6cdbba102robbiew 618680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiewchar *TCID="diotest06"; /* Test program identifier. */ 628680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiewint TST_TOTAL=1; /* 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 off64_t offset = 0; /* Offset. Default 0 */ 76bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewstatic int nvector = 20; /* Vector array. Default 20 */ 77bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewstatic char filename[LEN]; /* Test data file */ 78bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 79bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewchar *valloc(); 80bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 81bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew/* 82bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * prg_usage: display the program usage 83bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew*/ 84bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewvoid 85bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewprg_usage() 86bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 87bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "Usage: diotest6 [-b bufsize] [-o offset] [-n numchild] [-i iterations] [-v nvector] [-f filename]\n"); 88bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(1); 89bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 90bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 91bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew/* 928c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew * runtest: write the data to the file. Read the data from the file and compare. 938c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew * For each iteration, write data starting at offse+iter*bufsize 948c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew * location in the file and read from there. 958c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew*/ 968c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiewint 978c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiewruntest(int fd_r, int fd_w, int childnum, int action) 988c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew{ 998c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew off64_t seekoff; 1008c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew int i, bufsize = BUFSIZE; 1018c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew struct iovec *iov1, *iov2, *iovp; 1028c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 1038c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* Allocate for buffers and data pointers */ 1048c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew seekoff = offset+bufsize * childnum; 1058c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((iov1 = (struct iovec *)valloc(sizeof(struct iovec)*nvector)) == NULL) { 1068c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "valloc buf1 failed:%s\n", strerror(errno)); 1078c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1088c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1098c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((iov2 = (struct iovec *)valloc(sizeof(struct iovec)*nvector)) == NULL) { 1108c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "valloc buf2 failed:%s\n", strerror(errno)); 1118c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1128c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1138c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew for (i = 0, iovp = iov1; i < nvector; iovp++, i++) { 1148c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((iovp->iov_base = valloc(bufsize)) == NULL) { 1158c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "valloc for iovp->iov_base:%s\n", 1168c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew strerror(errno)); 1178c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1188c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1198c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew iovp->iov_len = bufsize; 1208c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1218c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew for (i = 0, iovp = iov2; i < nvector; iovp++, i++) { 1228c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if ((iovp->iov_base = valloc(bufsize)) == NULL) { 1238c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "valloc, iov2 for iovp->iov_base:%s\n", 1248c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew strerror(errno)); 1258c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1268c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1278c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew iovp->iov_len = bufsize; 1288c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1298c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew 1308c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* seek, write, read and verify */ 1318c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew for (i = 0; i < iter; i++) { 1328c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* 1338c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fillbuf(buf1, bufsize, childnum+i); 1348c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew */ 1358c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew vfillbuf(iov1, nvector, childnum+i); 1368c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (lseek(fd_w, seekoff, SEEK_SET) < 0) { 1378c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "lseek before write failed:%s\n", 1388c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew strerror(errno)); 1398c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1408c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1418c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (write(fd_w, iov1, bufsize) < bufsize) { 1428c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "write failed:%s\n", strerror(errno)); 1438c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1448c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1458c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (action == READ_DIRECT) { 1468c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew /* Make sure data is on to disk before read */ 1478c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (fsync(fd_w) < 0) { 1488c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "fsync failed:%s\n", 1498c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew strerror(errno)); 1508c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1518c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1528c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1538c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (lseek(fd_r, seekoff, SEEK_SET) < 0) { 1548c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "lseek before read failed:%s\n", 1558c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew strerror(errno)); 1568c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1578c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1588c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (read(fd_r, iov2, bufsize) < bufsize) { 1598c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "read failed:%s\n", strerror(errno)); 1608c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1618c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1628c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew if (bufcmp((char*)iov1, (char*)iov2, bufsize) != 0) { 1638c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew fprintf(stderr, "comparsion failed. Child=%d offset=%d\n", 1648c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew childnum, (int)seekoff); 1658c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(-1); 1668c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1678c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew } 1688c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew return(0); 1698c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew} 1708c64d1bbc89d3c6155f3f6bcdb974756d3b7919frobbiew/* 171bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew * child_function: open the file for read and write. Call the runtest routine. 172bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew*/ 173bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewint 174bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewchild_function(int childnum, int action) 175bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 176bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int fd_w, fd_r; 177bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 178bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew switch(action) { 179bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case READ_DIRECT: 180bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_w = open(filename, O_WRONLY|O_CREAT, 0666)) < 0) { 181bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[1] fd_w open failed for %s: %s\n", 182bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 183bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 184bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 185bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_r = open(filename, O_DIRECT|O_RDONLY, 0666)) < 0) { 186bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[1] fd_r open failed for %s: %s\n", 187bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 188bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 189bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 190bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 191bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 192bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[1] Read Direct-child %d failed\n", 193bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew childnum); 194bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 195bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 196bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 197bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 198bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 199bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case WRITE_DIRECT: 200bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_w = open(filename, O_DIRECT|O_WRONLY|O_CREAT, 0666)) < 0) { 201bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[2] fd_w open failed for %s: %s\n", 202bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 203bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 204bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 205bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_r = open(filename, O_RDONLY, 0666)) < 0) { 206bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[2] fd_r open failed for %s: %s\n", 207bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 208bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 209bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 210bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 211bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 212bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[2] Write Direct-child %d failed\n", 213bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew childnum); 214bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 215bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 216bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 217bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 218bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 219bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case RDWR_DIRECT: 220bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_w = open(filename, O_DIRECT|O_WRONLY|O_CREAT, 0666)) < 0) { 221bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[3] fd_w open failed for %s: %s\n", 222bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 223bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 224bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 225bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((fd_r = open(filename, O_DIRECT|O_RDONLY, 0666)) < 0) { 226bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[3] fd_r open failed for %s: %s\n", 227bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew filename, strerror(errno)); 228bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 229bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 230bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 231bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (runtest(fd_r, fd_w, childnum, action) == -1) { 232bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "[3] RDWR Direct-child %d failed\n", 233bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew childnum); 234bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 235bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 236bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 237bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 238bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 239bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew default: 240bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr,"Invalid Action Value\n"); 241bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew return(-1); 242bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 243bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_w); 244bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew close(fd_r); 245bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(0); 246bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 247bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 248bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 249bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewint 250bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiewmain(int argc, char *argv[]) 251bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew{ 252bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int *pidlst; 253bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int numchild = 1; /* Number of children. Default 5 */ 254bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew int i, fail_count = 0, failed = 0, total = 0; 2558680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew int fd1; 256bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 257bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Options */ 258bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew sprintf(filename,"testdata-6.%d", getpid()); 259bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew while ((i = getopt(argc, argv, "b:o:i:n:v:f:")) != -1) { 260bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew switch(i) { 261bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'b': 262bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((bufsize = atoi(optarg)) <= 0) { 263bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "bufsize must be > 0\n"); 264bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 265bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 266bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (bufsize % 4096 != 0) { 267bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "bufsize must be multiple of 4k\n"); 268bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 269bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 270bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 271bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'o': 272bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((offset = atoi(optarg)) <= 0) { 273bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "offset must be > 0\n"); 274bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 275bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 276bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 277bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'i': 278bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((iter = atoi(optarg)) <= 0) { 279bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "iterations must be > 0\n"); 280bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 281bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 282bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 283bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'n': 284bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((numchild = atoi(optarg)) <= 0) { 285bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "no of children must be > 0\n"); 286bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 287bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 288bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 289bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'v': 290bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if ((nvector = atoi(optarg)) <= 0) { 291bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stderr, "vectory array must be > 0\n"); 292bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 293bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 294bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 295bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew case 'f': 296bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew strcpy(filename, optarg); 297bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew break; 298bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew default: 299bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew prg_usage(); 300bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 301bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 302bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 3038680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew /* Test for filesystem support of O_DIRECT */ 3048680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew if ((fd1 = open(filename, O_DIRECT, 0666)) < 0) { 3058680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew tst_resm(TCONF,"O_DIRECT is not supported by this filesystem."); 3068680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew tst_exit(); 3078680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew }else{ 3088680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew close(fd1); 3098680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew } 3108680e9b72836f1cc465d424e0dcc9e54e4eda32brobbiew 311bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-1: Read with Direct IO, Write without */ 312bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (forkchldrn(&pidlst, numchild, READ_DIRECT, child_function) < 0 ) { 313bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 314bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 315bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 316bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew else { 317bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 318bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 319bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 320bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 321bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 322bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 323bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 324bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 325bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 326bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-2: Write with Direct IO, Read without */ 327bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (forkchldrn(&pidlst, numchild, WRITE_DIRECT, child_function) < 0) { 328bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 329bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 330bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 331bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew else { 332bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 333bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 334bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 335bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 336bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 337bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 338bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 339bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 340bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 341bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew /* Testblock-3: Read, Write with Direct IO. */ 342bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (forkchldrn(&pidlst, numchild, RDWR_DIRECT, child_function) < 0) { 343bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 344bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 345bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 346bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew else { 347bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (waitchldrn(&pidlst, numchild) < 0) { 348bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew failed = TRUE; 349bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count++; 350bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 351bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 352bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew unlink(filename); 353bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew free(pidlst); 354bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total++; 355bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 356bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew if (failed) { 357bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stdout, "diotest6: %d/%d testblocks failed\n", 358bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fail_count, total); 359bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(1); 360bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew } 361bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew fprintf(stdout, "diotest6: %d testblocks %d iterations with %d children completed\n", 362bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew total, iter, numchild); 363bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew exit(0); 364bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew} 365bfb98f98f0ebdcdeac4e628eeed3206bd1e451abrobbiew 36696f4bb38da69c681481f337d099ee4b6cdbba102robbiew 36796f4bb38da69c681481f337d099ee4b6cdbba102robbiew#else /* O_DIRECT */ 36896f4bb38da69c681481f337d099ee4b6cdbba102robbiew 36996f4bb38da69c681481f337d099ee4b6cdbba102robbiewint 37096f4bb38da69c681481f337d099ee4b6cdbba102robbiewmain() { 37196f4bb38da69c681481f337d099ee4b6cdbba102robbiew 37296f4bb38da69c681481f337d099ee4b6cdbba102robbiew tst_resm(TCONF,"O_DIRECT is not defined."); 37396f4bb38da69c681481f337d099ee4b6cdbba102robbiew return 0; 37496f4bb38da69c681481f337d099ee4b6cdbba102robbiew} 37596f4bb38da69c681481f337d099ee4b6cdbba102robbiew#endif /* O_DIRECT */ 376