| paul@0 | 1 | /* |
| paul@0 | 2 | * Test dataspace operations. |
| paul@0 | 3 | * |
| paul@0 | 4 | * Copyright (C) 2020, 2021 Paul Boddie <paul@boddie.org.uk> |
| paul@0 | 5 | * |
| paul@0 | 6 | * This program is free software; you can redistribute it and/or |
| paul@0 | 7 | * modify it under the terms of the GNU General Public License as |
| paul@0 | 8 | * published by the Free Software Foundation; either version 2 of |
| paul@0 | 9 | * the License, or (at your option) any later version. |
| paul@0 | 10 | * |
| paul@0 | 11 | * This program is distributed in the hope that it will be useful, |
| paul@0 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| paul@0 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| paul@0 | 14 | * GNU General Public License for more details. |
| paul@0 | 15 | * |
| paul@0 | 16 | * You should have received a copy of the GNU General Public License |
| paul@0 | 17 | * along with this program; if not, write to the Free Software |
| paul@0 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| paul@0 | 19 | * Boston, MA 02110-1301, USA |
| paul@0 | 20 | */ |
| paul@0 | 21 | |
| paul@0 | 22 | #include <l4/re/env.h> |
| paul@0 | 23 | #include <l4/sys/err.h> |
| paul@0 | 24 | |
| paul@0 | 25 | #include <stdio.h> |
| paul@0 | 26 | #include <string.h> |
| paul@0 | 27 | #include <stdlib.h> |
| paul@0 | 28 | |
| paul@0 | 29 | #include <ipc/mem_ipc.h> |
| paul@0 | 30 | |
| paul@7 | 31 | #include "mapped_file_client.h" |
| paul@7 | 32 | #include "memory_utils.h" |
| paul@7 | 33 | |
| paul@0 | 34 | |
| paul@0 | 35 | |
| paul@0 | 36 | int main(void) |
| paul@0 | 37 | { |
| paul@0 | 38 | l4_cap_idx_t server = l4re_env_get_cap("server"); |
| paul@0 | 39 | |
| paul@7 | 40 | client_MappedFile obj(server); |
| paul@7 | 41 | |
| paul@0 | 42 | /* Some memory to be mapped. */ |
| paul@0 | 43 | |
| paul@7 | 44 | size_t start_pos, end_pos, data_end; |
| paul@7 | 45 | |
| paul@7 | 46 | printf("Map region from %ld to %ld...\n", 0L, page(10)); |
| paul@7 | 47 | |
| paul@7 | 48 | long err = obj.mmap(0, page(10), &start_pos, &end_pos, &data_end); |
| paul@7 | 49 | |
| paul@7 | 50 | if (err) |
| paul@7 | 51 | { |
| paul@7 | 52 | printf("Could not map file region: %s\n", l4sys_errtostr(err)); |
| paul@7 | 53 | return 1; |
| paul@7 | 54 | } |
| paul@7 | 55 | |
| paul@0 | 56 | char *memory; |
| paul@7 | 57 | unsigned long size = end_pos - start_pos; |
| paul@7 | 58 | |
| paul@7 | 59 | printf("Attach region of size %ld...\n", size); |
| paul@7 | 60 | |
| paul@7 | 61 | err = ipc_attach_dataspace(server, size, (void **) &memory); |
| paul@0 | 62 | |
| paul@0 | 63 | if (err) |
| paul@0 | 64 | { |
| paul@0 | 65 | printf("Could not map memory: %s\n", l4sys_errtostr(err)); |
| paul@0 | 66 | return 1; |
| paul@0 | 67 | } |
| paul@0 | 68 | |
| paul@0 | 69 | printf("Mapped memory at %p\n", memory); |
| paul@0 | 70 | |
| paul@0 | 71 | for (unsigned long offset = 0; offset < size; offset += 1024) |
| paul@0 | 72 | { |
| paul@7 | 73 | char buf[11]; |
| paul@0 | 74 | printf("10 bytes from %p...\n", (memory + offset)); |
| paul@7 | 75 | strncpy(buf, (memory + offset), 10); |
| paul@7 | 76 | buf[10] = '\0'; |
| paul@7 | 77 | printf("%s\n", buf); |
| paul@0 | 78 | } |
| paul@0 | 79 | |
| paul@0 | 80 | return 0; |
| paul@0 | 81 | } |
