1/* 2 * Copyright (c) 2004, Bull SA. All rights reserved. 3 * Created by: Laurent.Vivier@bull.net 4 * This file is licensed under the GPL license. For the full content 5 * of this license, see the COPYING file at the top level of this 6 * source tree. 7 */ 8 9/* 10 * assertion: 11 * 12 * The file is read at offset given by aio_offset. 13 * 14 * method: 15 * 16 * - write data to a file 17 * - read file using aio_read at a given offset 18 * - check data is consistent 19 */ 20 21#define _XOPEN_SOURCE 600 22#include <stdio.h> 23#include <sys/types.h> 24#include <unistd.h> 25#include <sys/stat.h> 26#include <fcntl.h> 27#include <string.h> 28#include <errno.h> 29#include <stdlib.h> 30#include <aio.h> 31 32#include "posixtest.h" 33 34#define TNAME "aio_read/4-1.c" 35 36int main(void) 37{ 38 char tmpfname[256]; 39#define BUF_SIZE 512 40 unsigned char buf[BUF_SIZE * 2]; 41 unsigned char check[BUF_SIZE]; 42 int fd; 43 struct aiocb aiocb; 44 int i; 45 46 if (sysconf(_SC_ASYNCHRONOUS_IO) < 200112L) 47 return PTS_UNSUPPORTED; 48 49 snprintf(tmpfname, sizeof(tmpfname), "/tmp/pts_aio_read_4_1_%d", 50 getpid()); 51 unlink(tmpfname); 52 fd = open(tmpfname, O_CREAT | O_RDWR | O_EXCL, S_IRUSR | S_IWUSR); 53 if (fd == -1) { 54 printf(TNAME " Error at open(): %s\n", strerror(errno)); 55 exit(PTS_UNRESOLVED); 56 } 57 58 unlink(tmpfname); 59 60 memset(&buf[0], 1, BUF_SIZE); 61 memset(&buf[BUF_SIZE], 2, BUF_SIZE); 62 63 if (write(fd, buf, BUF_SIZE * 2) != BUF_SIZE * 2) { 64 printf(TNAME " Error at write(): %s\n", strerror(errno)); 65 exit(PTS_UNRESOLVED); 66 } 67 68 memset(check, 0xaa, BUF_SIZE); 69 memset(&aiocb, 0, sizeof(struct aiocb)); 70 aiocb.aio_fildes = fd; 71 aiocb.aio_buf = check; 72 aiocb.aio_nbytes = BUF_SIZE; 73 aiocb.aio_offset = BUF_SIZE; 74 75 if (aio_read(&aiocb) == -1) { 76 printf(TNAME " Error at aio_read(): %s\n", strerror(errno)); 77 exit(PTS_FAIL); 78 } 79 80 int err; 81 int ret; 82 83 /* Wait until end of transaction */ 84 do { 85 usleep(10000); 86 err = aio_error(&aiocb); 87 } while (err == EINPROGRESS); 88 89 ret = aio_return(&aiocb); 90 91 if (err != 0) { 92 printf(TNAME " Error at aio_error() : %s\n", strerror(err)); 93 close(fd); 94 exit(PTS_FAIL); 95 } 96 97 if (ret != BUF_SIZE) { 98 printf(TNAME " Error at aio_return()\n"); 99 close(fd); 100 exit(PTS_FAIL); 101 } 102 103 /* check it */ 104 for (i = 0; i < BUF_SIZE; i++) { 105 if (check[i] != 2) { 106 printf(TNAME " read values are corrupted\n"); 107 close(fd); 108 exit(PTS_FAIL); 109 } 110 } 111 112 close(fd); 113 printf("Test PASSED\n"); 114 return PTS_PASS; 115} 116