| /* |
| * This file and its contents are supplied under the terms of the |
| * Common Development and Distribution License ("CDDL"), version 1.0. |
| * You may only use this file in accordance with the terms of version |
| * 1.0 of the CDDL. |
| * |
| * A full copy of the text of the CDDL should have accompanied this |
| * source. A copy of the CDDL is also available via the Internet at |
| * http://www.illumos.org/license/CDDL. |
| */ |
| |
| /* |
| * Copyright 2012 Jilin Xpd <jilinxpd@gmail.com> |
| * Copyright 2018 Nexenta Systems, Inc. |
| */ |
| |
| /* |
| * It doesn't matter if the userland forgets to close the file or |
| * munmap it, because smbfs will help close it(including otW close) |
| * and sync the dirty pages to the file. |
| * This program tests if smbfs works as we said. |
| */ |
| |
| #include <sys/mman.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| int |
| main(int argc, char **argv) |
| { |
| char *file_addr; |
| off_t offset; |
| size_t filesize; |
| size_t blksize; |
| int fid; |
| int i; |
| char *c = "?#*%&"; |
| |
| if (argc != 2) { |
| fprintf(stderr, "\tusage:\n\tno_close <filename>\n"); |
| return (1); |
| } |
| |
| /* open test file */ |
| fid = open(argv[1], O_RDWR | O_CREAT | O_TRUNC, |
| S_IRUSR | S_IWUSR | S_IROTH | S_IWOTH); |
| if (fid == -1) { |
| fprintf(stderr, "open %s error=%d\n", argv[1], errno); |
| return (1); |
| } |
| |
| /* extend file */ |
| filesize = 64 * 1024; |
| if (ftruncate(fid, filesize) == -1) { |
| fprintf(stderr, "ftrunc %s error=%d\n", argv[1], errno); |
| return (1); |
| } |
| |
| /* map file */ |
| file_addr = mmap(NULL, filesize, |
| PROT_READ | PROT_WRITE, MAP_SHARED, fid, 0); |
| if (file_addr == MAP_FAILED) { |
| fprintf(stderr, "mmap %s error=%d\n", argv[1], errno); |
| return (1); |
| } |
| |
| /* write something into mapped addr */ |
| blksize = filesize / 4; |
| for (i = 0, offset = 0; i < 4; i++, offset += blksize) { |
| memset(file_addr + offset, c[i], blksize); |
| } |
| memset(file_addr + offset, c[i], filesize - offset); |
| |
| /* no msync, munmap, close */ |
| |
| _exit(0); |
| /* NOTREACHED */ |
| } |