1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * This file is licensed under the GPL license. For the full content 4 * of this license, see the COPYING file at the top level of this 5 * source tree. 6 7 * Upon successful completion, fsync() shall return 0. 8 * Otherwise, .1 shall be returned and errno set 9 * to indicate the error. If the fsync() function fails. 10 * 11 * 1. Create a regular file; 12 * 2. Write a few bytes to the file, call fsycn(), should return 0; 13 * 14 */ 15 16 #include <stdio.h> 17 #include <stdlib.h> 18 #include <unistd.h> 19 #include <sys/mman.h> 20 #include <sys/types.h> 21 #include <sys/stat.h> 22 #include <fcntl.h> 23 #include <string.h> 24 #include <errno.h> 25 #include "posixtest.h" 26 27 #define TNAME "fsync/4-1.c" 28 29 int main(void) 30 { 31 char tmpfname[256]; 32 char *data; 33 int total_size = 1024; 34 int fd; 35 36 snprintf(tmpfname, sizeof(tmpfname), "/tmp/pts_fsync_4_1_%d", getpid()); 37 unlink(tmpfname); 38 fd = open(tmpfname, O_CREAT | O_RDWR | O_EXCL, S_IRUSR | S_IWUSR); 39 if (fd == -1) { 40 printf(TNAME " Error at open(): %s\n", strerror(errno)); 41 exit(PTS_UNRESOLVED); 42 } 43 44 /* Make sure the file is removed when it is closed */ 45 unlink(tmpfname); 46 data = malloc(total_size); 47 memset(data, 'a', total_size); 48 if (write(fd, data, total_size) != total_size) { 49 printf(TNAME "Error at write(): %s\n", strerror(errno)); 50 free(data); 51 exit(PTS_UNRESOLVED); 52 } 53 free(data); 54 55 if (fsync(fd) == -1) { 56 printf(TNAME "Error at fsync(): %s\n", strerror(errno)); 57 exit(PTS_FAIL); 58 } 59 60 close(fd); 61 printf("Test PASSED\n"); 62 return PTS_PASS; 63 } 64
