| paul@90 | 1 | /* |
| paul@90 | 2 | * Test dataspace operations. |
| paul@90 | 3 | * |
| paul@90 | 4 | * Copyright (C) 2020, 2021 Paul Boddie <paul@boddie.org.uk> |
| paul@90 | 5 | * |
| paul@90 | 6 | * This program is free software; you can redistribute it and/or |
| paul@90 | 7 | * modify it under the terms of the GNU General Public License as |
| paul@90 | 8 | * published by the Free Software Foundation; either version 2 of |
| paul@90 | 9 | * the License, or (at your option) any later version. |
| paul@90 | 10 | * |
| paul@90 | 11 | * This program is distributed in the hope that it will be useful, |
| paul@90 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| paul@90 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| paul@90 | 14 | * GNU General Public License for more details. |
| paul@90 | 15 | * |
| paul@90 | 16 | * You should have received a copy of the GNU General Public License |
| paul@90 | 17 | * along with this program; if not, write to the Free Software |
| paul@90 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| paul@90 | 19 | * Boston, MA 02110-1301, USA |
| paul@90 | 20 | */ |
| paul@90 | 21 | |
| paul@90 | 22 | #include <systypes/fcntl.h> |
| paul@90 | 23 | |
| paul@90 | 24 | #include <stdio.h> |
| paul@90 | 25 | |
| paul@90 | 26 | #include "client.h" |
| paul@90 | 27 | |
| paul@90 | 28 | |
| paul@90 | 29 | |
| paul@90 | 30 | int main(int argc, char *argv[]) |
| paul@90 | 31 | { |
| paul@90 | 32 | if (argc < 2) |
| paul@90 | 33 | { |
| paul@90 | 34 | printf("Need a filename.\n"); |
| paul@90 | 35 | return 1; |
| paul@90 | 36 | } |
| paul@90 | 37 | |
| paul@90 | 38 | /* Obtain filename and access parameters. */ |
| paul@90 | 39 | |
| paul@90 | 40 | char *filename = argv[1]; |
| paul@90 | 41 | |
| paul@90 | 42 | /* Invoke the open method to receive the file reference. */ |
| paul@90 | 43 | |
| paul@90 | 44 | file_t *file = client_open(filename, O_RDWR); |
| paul@90 | 45 | |
| paul@90 | 46 | if (file == NULL) |
| paul@90 | 47 | { |
| paul@90 | 48 | printf("Could not obtain file.\n"); |
| paul@90 | 49 | return 1; |
| paul@90 | 50 | } |
| paul@90 | 51 | |
| paul@90 | 52 | /* Map some memory. */ |
| paul@90 | 53 | |
| paul@90 | 54 | void *addr = client_mmap(file, 0, 1024); |
| paul@90 | 55 | |
| paul@90 | 56 | if (addr == NULL) |
| paul@90 | 57 | { |
| paul@90 | 58 | printf("Could not map memory.\n"); |
| paul@90 | 59 | return 1; |
| paul@90 | 60 | } |
| paul@90 | 61 | |
| paul@90 | 62 | printf("At mapped region from %ld to %ld with data at %ld to %ld.\n", |
| paul@90 | 63 | file->start_pos, file->end_pos, file->data_current, file->data_end); |
| paul@90 | 64 | |
| paul@90 | 65 | /* Copy the sampled data to another file region. */ |
| paul@90 | 66 | |
| paul@90 | 67 | offset_t size = file->size; |
| paul@90 | 68 | char buffer[size]; |
| paul@90 | 69 | offset_t nread = client_read(file, buffer, size); |
| paul@90 | 70 | |
| paul@90 | 71 | if (nread != size) |
| paul@90 | 72 | { |
| paul@90 | 73 | printf("Could not read entire file: %ld out of %ld bytes.\n", nread, size); |
| paul@90 | 74 | return 1; |
| paul@90 | 75 | } |
| paul@90 | 76 | |
| paul@90 | 77 | printf("File contents...\n"); |
| paul@90 | 78 | |
| paul@90 | 79 | fwrite(buffer, sizeof(char), nread, stdout); |
| paul@90 | 80 | |
| paul@90 | 81 | printf("Copy %ld bytes to end...\n", nread); |
| paul@90 | 82 | |
| paul@90 | 83 | for (int times = 0; times < 10; times++) |
| paul@90 | 84 | { |
| paul@90 | 85 | printf("Copy #%d...\n", times); |
| paul@90 | 86 | |
| paul@90 | 87 | offset_t nwritten = client_write(file, buffer, nread); |
| paul@90 | 88 | |
| paul@90 | 89 | if (nwritten != nread) |
| paul@90 | 90 | { |
| paul@90 | 91 | printf("Could not write file section: %ld instead of %ld bytes.\n", |
| paul@90 | 92 | nwritten, nread); |
| paul@90 | 93 | return 1; |
| paul@90 | 94 | } |
| paul@90 | 95 | } |
| paul@90 | 96 | |
| paul@90 | 97 | printf("File is now %ld in size.\n", file->size); |
| paul@90 | 98 | |
| paul@90 | 99 | printf("Seek to start...\n"); |
| paul@90 | 100 | |
| paul@90 | 101 | client_seek(file, 0, SEEK_SET); |
| paul@90 | 102 | |
| paul@90 | 103 | printf("At mapped region from %ld to %ld with data at %ld to %ld.\n", |
| paul@90 | 104 | file->start_pos, file->end_pos, file->data_current, file->data_end); |
| paul@90 | 105 | |
| paul@90 | 106 | printf("File contents...\n"); |
| paul@90 | 107 | |
| paul@90 | 108 | offset_t position = 0; |
| paul@90 | 109 | |
| paul@90 | 110 | while (position < file->size) |
| paul@90 | 111 | { |
| paul@90 | 112 | offset_t nread = client_read(file, buffer, size); |
| paul@90 | 113 | |
| paul@90 | 114 | if ((nread != size) && (nread != file->size - position)) |
| paul@90 | 115 | { |
| paul@90 | 116 | printf("Could not read file section: %ld instead of %ld or remaining %ld bytes.\n", |
| paul@90 | 117 | nread, size, file->size - position); |
| paul@90 | 118 | return 1; |
| paul@90 | 119 | } |
| paul@90 | 120 | |
| paul@90 | 121 | fwrite(buffer, sizeof(char), nread, stdout); |
| paul@90 | 122 | position += nread; |
| paul@90 | 123 | } |
| paul@90 | 124 | |
| paul@90 | 125 | printf("File shown.\n"); |
| paul@90 | 126 | |
| paul@90 | 127 | return 0; |
| paul@90 | 128 | } |
| paul@90 | 129 | |
| paul@90 | 130 | // vim: tabstop=2 expandtab shiftwidth=2 |
